├── Day01 ├── gl.frag ├── gl.vert ├── shader.qrc ├── main.cpp ├── widget.h ├── .gitignore ├── widget.cpp └── Day01.pro ├── Day02 ├── gl.frag ├── gl.vert ├── shader.qrc ├── main.cpp ├── widget.h ├── .gitignore ├── Day02.pro ├── widget.cpp ├── Day02.pro.user └── Day02.user ├── Day03 ├── OpenGL.jpg ├── gl.frag ├── gl.vert ├── shader.qrc ├── main.cpp ├── widget.h ├── .gitignore ├── Day03.pro ├── widget.cpp └── Day03.user ├── .gitmodules ├── GLTool ├── Test │ ├── image.png │ ├── res.qrc │ ├── main.cpp │ ├── TestWidget.h │ └── TestWidget.cpp ├── debug │ └── GLTool.lib ├── release │ └── GLTool.lib ├── TextureTool.h ├── GLTool.pro ├── .gitignore ├── GLFilter.cpp ├── GLTool.cpp ├── GLTool.h ├── TextureTool.cpp └── GLFilter.h ├── WaveEffect ├── background.jpg ├── wave.vert ├── render.vert ├── main.cpp ├── shader.qrc ├── WaveEffect.pro ├── wave.frag ├── render.frag ├── .gitignore ├── widget.h └── widget.cpp ├── Day04_GLSLSandbox ├── shader.qrc ├── main.cpp ├── widget.h ├── GLSLSandbox.frag ├── .gitignore ├── Day04_GLSLSandbox.pro └── widget.cpp ├── Day03_Text2D ├── shader.qrc ├── text.frag ├── text.vert ├── main.cpp ├── widget.h ├── .gitignore ├── Day03_Text2D.pro └── widget.cpp ├── OpenGLInstance ├── shader.qrc ├── gl.frag ├── main.cpp ├── gl.vert ├── widget.h ├── .gitignore ├── OpenGLInstance.pro └── widget.cpp ├── Section7_GPUParticleSystem ├── ParticleRender.frag ├── shader.qrc ├── main.cpp ├── ParticleRender.vert ├── ParticleRunner.vert ├── Section7_GPUParticleSystem.pro ├── ParticleRunner.geom ├── .gitignore ├── Widget.h └── Widget.cpp ├── README.md ├── OpenGLTransformFeedback ├── feedback.vert ├── main.cpp ├── feedback.geom ├── widget.h ├── .gitignore ├── OpenGLTransformFeedback.pro └── widget.cpp ├── Day04 ├── main.cpp ├── widget.h ├── .gitignore ├── Day04.pro └── widget.cpp ├── Section6_GlowEffect ├── main.cpp ├── widget.h ├── .gitignore ├── Section6_GlowEffect.pro └── widget.cpp └── Section4_2DTextByTool ├── main.cpp ├── widget.h ├── .gitignore ├── Section4_2DTextByTool.pro └── widget.cpp /Day01/gl.frag: -------------------------------------------------------------------------------- 1 | void main(void) 2 | { 3 | gl_FragColor = vec4(1.0,0.0,1.0,1.0); 4 | } 5 | -------------------------------------------------------------------------------- /Day02/gl.frag: -------------------------------------------------------------------------------- 1 | void main(void) 2 | { 3 | gl_FragColor = vec4(1.0,0.0,1.0,1.0); 4 | } 5 | -------------------------------------------------------------------------------- /Day02/gl.vert: -------------------------------------------------------------------------------- 1 | attribute vec3 pos; 2 | void main() 3 | { 4 | gl_Position = vec4(pos,1.0); 5 | } 6 | -------------------------------------------------------------------------------- /Day03/OpenGL.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Italink/QtOpenGL-Essential-Training/HEAD/Day03/OpenGL.jpg -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "IKEngine"] 2 | path = IKEngine 3 | url = https://github.com/Italink/IKEngine.git 4 | -------------------------------------------------------------------------------- /Day01/gl.vert: -------------------------------------------------------------------------------- 1 | attribute vec3 pos; 2 | 3 | 4 | void main() 5 | { 6 | gl_Position = vec4(pos,1.0); 7 | } 8 | -------------------------------------------------------------------------------- /GLTool/Test/image.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Italink/QtOpenGL-Essential-Training/HEAD/GLTool/Test/image.png -------------------------------------------------------------------------------- /GLTool/debug/GLTool.lib: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Italink/QtOpenGL-Essential-Training/HEAD/GLTool/debug/GLTool.lib -------------------------------------------------------------------------------- /GLTool/release/GLTool.lib: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Italink/QtOpenGL-Essential-Training/HEAD/GLTool/release/GLTool.lib -------------------------------------------------------------------------------- /WaveEffect/background.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Italink/QtOpenGL-Essential-Training/HEAD/WaveEffect/background.jpg -------------------------------------------------------------------------------- /GLTool/Test/res.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | image.png 4 | 5 | 6 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | GLSLSandbox.frag 4 | 5 | 6 | -------------------------------------------------------------------------------- /WaveEffect/wave.vert: -------------------------------------------------------------------------------- 1 | #version 450 2 | layout(location=0) in vec2 pos; 3 | 4 | void main(void) 5 | { 6 | gl_Position = vec4(pos,0.0,1.0); 7 | } 8 | -------------------------------------------------------------------------------- /Day02/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | gl.vert 4 | gl.frag 5 | 6 | 7 | -------------------------------------------------------------------------------- /Day03/gl.frag: -------------------------------------------------------------------------------- 1 | uniform sampler2D texture; 2 | varying vec2 outCoord; 3 | 4 | void main(void) 5 | { 6 | gl_FragColor = texture2D(texture,outCoord); 7 | } 8 | -------------------------------------------------------------------------------- /Day03_Text2D/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | text.frag 4 | text.vert 5 | 6 | 7 | -------------------------------------------------------------------------------- /OpenGLInstance/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | gl.vert 4 | gl.frag 5 | 6 | 7 | -------------------------------------------------------------------------------- /Day03_Text2D/text.frag: -------------------------------------------------------------------------------- 1 | uniform sampler2D texture; 2 | varying vec2 outCoord; 3 | 4 | void main(void) 5 | { 6 | gl_FragColor = texture2D(texture, outCoord); 7 | } 8 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/ParticleRender.frag: -------------------------------------------------------------------------------- 1 | #version 400 core 2 | 3 | in vec4 outColor; 4 | out vec4 fragColor; 5 | void main(){ 6 | fragColor = outColor; 7 | } 8 | -------------------------------------------------------------------------------- /OpenGLInstance/gl.frag: -------------------------------------------------------------------------------- 1 | #version 330 core 2 | out vec4 FragColor; 3 | 4 | in vec3 fColor; 5 | 6 | void main() 7 | { 8 | FragColor = vec4(fColor, 1.0); 9 | } 10 | -------------------------------------------------------------------------------- /Day01/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | gl.vert 4 | gl.frag 5 | s.vsh 6 | 7 | 8 | -------------------------------------------------------------------------------- /Day03/gl.vert: -------------------------------------------------------------------------------- 1 | attribute vec3 pos; 2 | attribute vec2 texCoord; 3 | varying vec2 outCoord; 4 | void main() 5 | { 6 | gl_Position = vec4(pos,1.0); 7 | outCoord=texCoord; 8 | } 9 | -------------------------------------------------------------------------------- /Day03/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | gl.vert 4 | gl.frag 5 | OpenGL.jpg 6 | 7 | 8 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # QtOpenGL-Essential-Training 2 | 笔者想通过自己学习OpenGL的一些经验来总结一个Qt平台下的OpenGL教程 3 | 4 | ＃笔者博客：https：//blog.csdn.net/qq_40946921 5 | ＃笔者B站链接：https://www.bilibili.com/read/cv10397591 6 | -------------------------------------------------------------------------------- /WaveEffect/render.vert: -------------------------------------------------------------------------------- 1 | #version 450 2 | layout(location=0) in vec2 pos; 3 | out vec2 waveCoord; 4 | void main(void) 5 | { 6 | gl_Position = vec4(pos,0.0,1.0); 7 | waveCoord = (pos+vec2(1))/2; 8 | } 9 | -------------------------------------------------------------------------------- /Day03_Text2D/text.vert: -------------------------------------------------------------------------------- 1 | attribute vec2 pos; 2 | attribute vec2 texCoord; 3 | varying vec2 outCoord; 4 | 5 | void main(void) 6 | { 7 | gl_Position = vec4(pos,1.0,1.0); 8 | outCoord = texCoord; 9 | } 10 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/feedback.vert: -------------------------------------------------------------------------------- 1 | #version 400 core 2 | layout(location = 0) in float inValue; 3 | out OUT{ 4 | float value; 5 | }vs_out; 6 | 7 | void main(void) 8 | { 9 | vs_out.value=inValue; 10 | 11 | } 12 | -------------------------------------------------------------------------------- /Day01/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Day02/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Day03/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Day04/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /GLTool/Test/main.cpp: -------------------------------------------------------------------------------- 1 | #include "TestWidget.h" 2 | #include 3 | 4 | int main(int argc, char *argv[]) 5 | { 6 | QApplication a(argc, argv); 7 | Widget w; 8 | w.show(); 9 | return a.exec(); 10 | } 11 | -------------------------------------------------------------------------------- /OpenGLInstance/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | #include 3 | 4 | int main(int argc, char *argv[]) 5 | { 6 | QApplication a(argc, argv); 7 | Widget w; 8 | w.show(); 9 | return a.exec(); 10 | } 11 | -------------------------------------------------------------------------------- /Day03_Text2D/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /WaveEffect/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Section6_GlowEffect/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /Section4_2DTextByTool/main.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget w; 9 | w.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /WaveEffect/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | wave.vert 4 | wave.frag 5 | render.vert 6 | render.frag 7 | background.jpg 8 | 9 | 10 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/shader.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | ParticleRender.vert 4 | ParticleRender.frag 5 | ParticleRunner.geom 6 | ParticleRunner.vert 7 | 8 | 9 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/main.cpp: -------------------------------------------------------------------------------- 1 | #include "Widget.h" 2 | #include 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication a(argc, argv); 8 | Widget openglWidget; 9 | openglWidget.show(); 10 | return a.exec(); 11 | } 12 | -------------------------------------------------------------------------------- /OpenGLInstance/gl.vert: -------------------------------------------------------------------------------- 1 | #version 330 core 2 | layout (location = 0) in vec2 aPos; 3 | layout (location = 1) in vec3 aColor; 4 | layout (location = 2) in mat4 aOffset; 5 | 6 | out vec3 fColor; 7 | 8 | void main() 9 | { 10 | gl_Position = aOffset*vec4(aPos,1.0,1.0); 11 | fColor = aColor; 12 | } 13 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/ParticleRender.vert: -------------------------------------------------------------------------------- 1 | #version 400 2 | 3 | layout(location = 0) in vec3 position; 4 | layout(location = 2) in float size; 5 | layout(location = 4) in vec4 color; 6 | 7 | uniform mat4 VP; 8 | 9 | out vec4 outColor; 10 | 11 | void main(){ 12 | gl_Position = VP * vec4(position,1.0); 13 | gl_PointSize = size ; 14 | outColor = color; 15 | } 16 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/feedback.geom: -------------------------------------------------------------------------------- 1 | #version 400 core 2 | 3 | layout(points) in; 4 | layout(points, max_vertices = 4) out; 5 | 6 | in OUT{ 7 | float value; 8 | }vs_in[]; 9 | 10 | out float outValue; 11 | 12 | void main(){ 13 | outValue=1.0; 14 | EmitVertex(); 15 | outValue=vs_in[0].value+2; 16 | EmitVertex(); 17 | outValue=vs_in[0].value+3; 18 | EmitVertex(); 19 | outValue=vs_in[0].value+4; 20 | EmitVertex(); 21 | EndPrimitive(); 22 | } 23 | 24 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | class Widget : public QOpenGLWidget, protected QOpenGLExtraFunctions 8 | { 9 | Q_OBJECT 10 | public: 11 | Widget(QWidget *parent = nullptr); 12 | ~Widget(); 13 | protected: 14 | virtual void initializeGL() override; 15 | virtual void paintGL() override; 16 | virtual void resizeGL(int w, int h) override; 17 | QOpenGLShaderProgram shaderProgram; 18 | }; 19 | #endif // WIDGET_H 20 | -------------------------------------------------------------------------------- /GLTool/TextureTool.h: -------------------------------------------------------------------------------- 1 | #ifndef TEXTURETOOL_H 2 | #define TEXTURETOOL_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | 9 | class TextureTool 10 | { 11 | public: 12 | TextureTool(); 13 | void drawTexture(GLuint textureId, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 14 | void drawImage(QImage image, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 15 | private: 16 | QOpenGLVertexArrayObject VAO; 17 | QOpenGLBuffer VBO; 18 | QOpenGLShaderProgram program; 19 | }; 20 | 21 | #endif // TEXTURETOOL_H 22 | -------------------------------------------------------------------------------- /Day01/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 11 | { 12 | Q_OBJECT 13 | 14 | public: 15 | Widget(QWidget *parent = nullptr); 16 | ~Widget(); 17 | protected: 18 | virtual void initializeGL() override; 19 | virtual void paintGL() override; 20 | virtual void resizeGL(int w, int h) override; 21 | private: 22 | QOpenGLShaderProgram shaderProgram; 23 | 24 | }; 25 | #endif // WIDGET_H 26 | -------------------------------------------------------------------------------- /GLTool/Test/TestWidget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include "GLFilter.h" 5 | 6 | #include 7 | #include 8 | #include 9 | 10 | class Widget : public QOpenGLWidget, protected QOpenGLExtraFunctions 11 | { 12 | Q_OBJECT 13 | public: 14 | Widget(QWidget *parent = nullptr); 15 | ~Widget(); 16 | 17 | // QOpenGLWidget interface 18 | protected: 19 | virtual void initializeGL() override; 20 | virtual void resizeGL(int w, int h) override; 21 | virtual void paintGL() override; 22 | private: 23 | QOpenGLTexture texture; 24 | GLFilter* filter; 25 | }; 26 | #endif // WIDGET_H 27 | -------------------------------------------------------------------------------- /WaveEffect/WaveEffect.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # You can make your code fail to compile if it uses deprecated APIs. 8 | # In order to do so, uncomment the following line. 9 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 10 | 11 | SOURCES += \ 12 | main.cpp \ 13 | widget.cpp 14 | 15 | HEADERS += \ 16 | widget.h 17 | 18 | # Default rules for deployment. 19 | qnx: target.path = /tmp/$${TARGET}/bin 20 | else: unix:!android: target.path = /opt/$${TARGET}/bin 21 | !isEmpty(target.path): INSTALLS += target 22 | 23 | RESOURCES += \ 24 | shader.qrc 25 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/ParticleRunner.vert: -------------------------------------------------------------------------------- 1 | #version 400 core 2 | layout(location = 0) in vec3 position; 3 | layout(location = 1) in vec3 velocity; 4 | layout(location = 2) in float size; 5 | layout(location = 3) in float life; 6 | layout(location = 4) in vec4 color; 7 | 8 | out Particle{ 9 | vec3 position; 10 | vec3 velocity; 11 | float size; 12 | float life; 13 | vec4 color; 14 | }particle; 15 | 16 | uniform float duration; 17 | 18 | void main(){ 19 | particle.position = position + velocity; 20 | particle.velocity = velocity + vec3(0,-0.01,0); 21 | 22 | particle.size = size; 23 | particle.life = life + duration; 24 | particle.color = color; 25 | } 26 | 27 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/Section7_GPUParticleSystem.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # You can make your code fail to compile if it uses deprecated APIs. 8 | # In order to do so, uncomment the following line. 9 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 10 | 11 | SOURCES += \ 12 | main.cpp \ 13 | Widget.cpp 14 | 15 | HEADERS += \ 16 | Widget.h 17 | 18 | # Default rules for deployment. 19 | qnx: target.path = /tmp/$${TARGET}/bin 20 | else: unix:!android: target.path = /opt/$${TARGET}/bin 21 | !isEmpty(target.path): INSTALLS += target 22 | 23 | RESOURCES += \ 24 | shader.qrc 25 | -------------------------------------------------------------------------------- /Section4_2DTextByTool/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | 12 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 13 | { 14 | Q_OBJECT 15 | public: 16 | Widget(QWidget *parent = nullptr); 17 | ~Widget(); 18 | protected: 19 | virtual void initializeGL() override; 20 | virtual void paintGL() override; 21 | virtual void resizeGL(int w, int h) override; 22 | private: 23 | QOpenGLTexture texture; 24 | QTimer timer; 25 | }; 26 | 27 | 28 | #endif // WIDGET_H 29 | -------------------------------------------------------------------------------- /Day02/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 11 | { 12 | Q_OBJECT 13 | 14 | public: 15 | Widget(QWidget *parent = nullptr); 16 | ~Widget(); 17 | protected: 18 | virtual void initializeGL() override; 19 | virtual void paintGL() override; 20 | virtual void resizeGL(int w, int h) override; 21 | private: 22 | QOpenGLShaderProgram shaderProgram; 23 | QOpenGLVertexArrayObject VAO; 24 | QOpenGLBuffer VBO; 25 | QOpenGLBuffer EBO; 26 | }; 27 | #endif // WIDGET_H 28 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/ParticleRunner.geom: -------------------------------------------------------------------------------- 1 | #version 400 core 2 | layout(points) in; 3 | layout(points, max_vertices = 1) out; 4 | 5 | in Particle{ 6 | vec3 position; 7 | vec3 velocity; 8 | float size; 9 | float life; 10 | vec4 color; 11 | }particle[]; 12 | 13 | out vec3 position; 14 | out vec3 velocity; 15 | out float size; 16 | out float life; 17 | out vec4 color; 18 | 19 | uniform float lifetime; 20 | 21 | void main(){ 22 | if(particle[0].life>lifetime) 23 | return; 24 | position = particle[0].position; 25 | velocity = particle[0].velocity; 26 | size = particle[0].size; 27 | life = particle[0].life; 28 | color = particle[0].color; 29 | EmitVertex(); 30 | EndPrimitive(); 31 | } 32 | -------------------------------------------------------------------------------- /OpenGLInstance/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | class Widget : public QOpenGLWidget,protected QOpenGLExtraFunctions 11 | { 12 | Q_OBJECT 13 | 14 | public: 15 | Widget(QWidget *parent = nullptr); 16 | ~Widget(); 17 | protected: 18 | virtual void initializeGL() override; 19 | virtual void paintGL() override; 20 | virtual void resizeGL(int w, int h) override; 21 | private: 22 | QOpenGLVertexArrayObject VAO; 23 | QOpenGLBuffer VBO; 24 | QOpenGLShaderProgram shaderProgram; 25 | QOpenGLBuffer instanceVBO; 26 | }; 27 | #endif // WIDGET_H 28 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 11 | { 12 | Q_OBJECT 13 | 14 | public: 15 | Widget(QWidget *parent = nullptr); 16 | ~Widget(); 17 | protected: 18 | virtual void initializeGL() override; 19 | virtual void paintGL() override; 20 | virtual void resizeGL(int w, int h) override; 21 | private: 22 | QOpenGLShaderProgram shaderProgram; 23 | QOpenGLVertexArrayObject VAO; 24 | QOpenGLBuffer VBO; 25 | QOpenGLBuffer VBOBuffer; 26 | }; 27 | #endif // WIDGET_H 28 | -------------------------------------------------------------------------------- /GLTool/GLTool.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | TEMPLATE = lib 6 | CONFIG += staticlib 7 | 8 | CONFIG += c++11 9 | 10 | # You can make your code fail to compile if it uses deprecated APIs. 11 | # In order to do so, uncomment the following line. 12 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 13 | 14 | SOURCES += \ 15 | GLFilter.cpp \ 16 | TextureTool.cpp \ 17 | GLTool.cpp \ 18 | 19 | HEADERS += \ 20 | GLFilter.h \ 21 | TextureTool.h \ 22 | GLTool.h 23 | 24 | # Default rules for deployment. 25 | qnx: target.path = /tmp/$${TARGET}/bin 26 | else: unix:!android: target.path = /opt/$${TARGET}/bin 27 | !isEmpty(target.path): INSTALLS += target 28 | -------------------------------------------------------------------------------- /WaveEffect/wave.frag: -------------------------------------------------------------------------------- 1 | #version 450 2 | #define MAX_SIZE 50 3 | uniform vec3 mouse[50]; 4 | uniform int size; 5 | uniform float frequency; //频率 6 | uniform float amplitude; //最大振幅 7 | uniform float wave_width; //波纹的宽度 8 | uniform float speed; //水纹的移动速度 9 | out float outHeight; 10 | 11 | void main(void) 12 | { 13 | outHeight = 0; 14 | for(int i=0;i 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 12 | { 13 | Q_OBJECT 14 | 15 | public: 16 | Widget(QWidget *parent = nullptr); 17 | ~Widget(); 18 | protected: 19 | virtual void initializeGL() override; 20 | virtual void paintGL() override; 21 | virtual void resizeGL(int w, int h) override; 22 | private: 23 | QOpenGLShaderProgram shaderProgram; 24 | QOpenGLVertexArrayObject VAO; 25 | QOpenGLBuffer VBO; 26 | QOpenGLBuffer EBO; 27 | QOpenGLTexture texture; 28 | }; 29 | #endif // WIDGET_H 30 | -------------------------------------------------------------------------------- /Day03_Text2D/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | 12 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 13 | { 14 | Q_OBJECT 15 | public: 16 | Widget(QWidget *parent = nullptr); 17 | ~Widget(); 18 | protected: 19 | virtual void initializeGL() override; 20 | virtual void paintGL() override; 21 | virtual void resizeGL(int w, int h) override; 22 | void flushTexture(); 23 | private: 24 | QOpenGLVertexArrayObject VAO; 25 | QOpenGLBuffer VBO; 26 | QOpenGLShaderProgram shaderProgram; 27 | QOpenGLTexture texture; 28 | QTimer timer; 29 | }; 30 | 31 | 32 | #endif // WIDGET_H 33 | -------------------------------------------------------------------------------- /WaveEffect/render.frag: -------------------------------------------------------------------------------- 1 | #version 450 2 | uniform sampler2D wave; 3 | uniform sampler2D background; 4 | uniform vec2 screen_size; 5 | uniform float depth; 6 | in vec2 waveCoord; 7 | out vec4 FragColor; 8 | 9 | void main(void) 10 | { 11 | float height = texture2D(wave,waveCoord).x; 12 | vec2 offset= vec2(1.0/screen_size.x,1.0/screen_size.y); 13 | 14 | float upHeight = texture2D(wave,waveCoord+vec2(0,offset.y)).x; 15 | float rightHeight = texture2D(wave,waveCoord+vec2(offset.x,0)).x; 16 | 17 | vec3 up = vec3(0,1,upHeight-height); 18 | vec3 right = vec3(1,0,rightHeight-height); 19 | 20 | vec3 normal = cross(up,right); 21 | 22 | vec3 view = vec3(0,0,-1); 23 | 24 | vec3 re = refract(view,normal,1.33); 25 | 26 | vec2 coordOffset = re.xy*((height+depth)/re.z); 27 | 28 | FragColor = texture2D(background,waveCoord+coordOffset); 29 | 30 | } 31 | -------------------------------------------------------------------------------- /Day04/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 13 | { 14 | Q_OBJECT 15 | 16 | public: 17 | Widget(QWidget *parent = nullptr); 18 | ~Widget(); 19 | protected: 20 | virtual void initializeGL() override; 21 | virtual void paintGL() override; 22 | virtual void resizeGL(int w, int h) override; 23 | private: 24 | QOpenGLShaderProgram shaderProgram; 25 | QOpenGLVertexArrayObject VAO; 26 | QOpenGLBuffer VBO; 27 | QOpenGLBuffer EBO; 28 | QOpenGLTexture texture; 29 | QTimer timer; 30 | }; 31 | #endif // WIDGET_H 32 | -------------------------------------------------------------------------------- /Section6_GlowEffect/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | 13 | class Widget : public QOpenGLWidget , protected QOpenGLExtraFunctions 14 | { 15 | Q_OBJECT 16 | public: 17 | Widget(QWidget *parent = nullptr); 18 | ~Widget(); 19 | void setBlurRadius(int radius); 20 | protected: 21 | virtual void initializeGL() override; 22 | virtual void paintGL() override; 23 | virtual void resizeGL(int w, int h) override; 24 | private: 25 | QTimer timer; 26 | QOpenGLFramebufferObject* xBlurBuffer; 27 | QOpenGLFramebufferObject* yBlurBuffer; 28 | GLFilter* blurFilter; 29 | GLFilter* glowFilter; 30 | QVector guassWeight; 31 | }; 32 | 33 | #endif // WIDGET_H 34 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/GLSLSandbox.frag: -------------------------------------------------------------------------------- 1 | #ifdef GL_ES 2 | precision mediump float; 3 | #endif 4 | 5 | // glslsandbox uniforms 6 | uniform float time; 7 | uniform vec2 resolution; 8 | 9 | vec3 outCol = vec3 (.0); 10 | 11 | void yonatansFractal (float t, vec2 FC, vec2 r, inout vec3 o) 12 | { 13 | float g=0., e, s, k = t*.2; 14 | for(float i=0.; i < 59.;++i) { 15 | vec3 p = vec3(g*(FC.xy - .5*r)/r.y + .2,g - 1.); 16 | p.xz *= mat2(cos(k),sin(k),-sin(k),cos(k)); 17 | s = 3.; 18 | for(int i=0; i < 4; ++i ) { 19 | s *= e = max(1.,(11.-2.*cos(k))/dot(p,p*5.)); 20 | p = vec3(2,4,.1) - abs(abs(p)*e - vec3(4,4,2) ); 21 | } 22 | g += min(length(p.xz), p.y)/s; 23 | o.rg += (s + .9, 11.3, s/5e4); 24 | } 25 | } 26 | 27 | void main(void) 28 | { 29 | yonatansFractal(time+50., gl_FragCoord.xy, resolution.xy, outCol); 30 | gl_FragColor = vec4(outCol + gl_FragCoord.xyz/resolution.xyy*0.12, 1.)*vec4(0.7,1.5,0,1); 31 | } 32 | -------------------------------------------------------------------------------- /Day01/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day02/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day03/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day04/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /GLTool/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /WaveEffect/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day01/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | Widget::Widget(QWidget *parent) 4 | : QOpenGLWidget(parent) 5 | { 6 | } 7 | 8 | Widget::~Widget() 9 | { 10 | } 11 | 12 | void Widget::initializeGL() 13 | { 14 | initializeOpenGLFunctions(); 15 | glClearColor(0.0f,0.5f,0.9f,1.0f); 16 | glClear(GL_COLOR_BUFFER_BIT); 17 | 18 | shaderProgram.create(); 19 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/gl.vert"); 20 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/gl.frag"); 21 | shaderProgram.link(); 22 | shaderProgram.enableAttributeArray(0); 23 | } 24 | 25 | void Widget::paintGL() 26 | { 27 | shaderProgram.bind(); 28 | 29 | float vertices[]={ 30 | 0.5f, 0.5f, 0.0f, // 右上角 31 | 0.5f, -0.5f, 0.0f, // 右下角 32 | -0.5f, 0.5f, 0.0f, // 左上角 33 | -0.5f, -0.5f, 0.0f, // 左下角 34 | }; 35 | shaderProgram.setAttributeArray(0,GL_FLOAT,vertices,3); 36 | glDrawArrays(GL_TRIANGLE_STRIP,0,4); 37 | } 38 | 39 | void Widget::resizeGL(int w, int h) 40 | { 41 | glViewport(0,0,w,h); 42 | } 43 | 44 | -------------------------------------------------------------------------------- /Day03_Text2D/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /OpenGLInstance/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Section6_GlowEffect/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Section4_2DTextByTool/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/.gitignore: -------------------------------------------------------------------------------- 1 | # This file is used to ignore files which are generated 2 | # ---------------------------------------------------------------------------- 3 | 4 | *~ 5 | *.autosave 6 | *.a 7 | *.core 8 | *.moc 9 | *.o 10 | *.obj 11 | *.orig 12 | *.rej 13 | *.so 14 | *.so.* 15 | *_pch.h.cpp 16 | *_resource.rc 17 | *.qm 18 | .#* 19 | *.*# 20 | core 21 | !core/ 22 | tags 23 | .DS_Store 24 | .directory 25 | *.debug 26 | Makefile* 27 | *.prl 28 | *.app 29 | moc_*.cpp 30 | ui_*.h 31 | qrc_*.cpp 32 | Thumbs.db 33 | *.res 34 | *.rc 35 | /.qmake.cache 36 | /.qmake.stash 37 | 38 | # qtcreator generated files 39 | *.pro.user* 40 | 41 | # xemacs temporary files 42 | *.flc 43 | 44 | # Vim temporary files 45 | .*.swp 46 | 47 | # Visual Studio generated files 48 | *.ib_pdb_index 49 | *.idb 50 | *.ilk 51 | *.pdb 52 | *.sln 53 | *.suo 54 | *.vcproj 55 | *vcproj.*.*.user 56 | *.ncb 57 | *.sdf 58 | *.opensdf 59 | *.vcxproj 60 | *vcxproj.* 61 | 62 | # MinGW generated files 63 | *.Debug 64 | *.Release 65 | 66 | # Python byte code 67 | *.pyc 68 | 69 | # Binaries 70 | # -------- 71 | *.dll 72 | *.exe 73 | 74 | -------------------------------------------------------------------------------- /Day01/Day01.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /Day02/Day02.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /Day03/Day03.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /Day04/Day04.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /Day03_Text2D/Day03_Text2D.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /OpenGLInstance/OpenGLInstance.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/Day04_GLSLSandbox.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/OpenGLTransformFeedback.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | RESOURCES += \ 31 | shader.qrc 32 | -------------------------------------------------------------------------------- /GLTool/Test/TestWidget.cpp: -------------------------------------------------------------------------------- 1 | #include "GLTool.h" 2 | #include "TestWidget.h" 3 | Widget::Widget(QWidget *parent) 4 | : QOpenGLWidget(parent) 5 | , texture(QOpenGLTexture::Target2D) 6 | { 7 | } 8 | 9 | Widget::~Widget() 10 | { 11 | } 12 | 13 | void Widget::initializeGL() 14 | { 15 | initializeOpenGLFunctions(); 16 | texture.create(); 17 | texture.setData(QImage(":image.png").mirrored()); 18 | 19 | filter=GLTool::createFilter( //创建一个取反色的滤镜 20 | "#version 450 core\n" 21 | "in vec2 texCoord;\n" 22 | "uniform sampler2D pre;\n" 23 | "out vec4 FragColor;\n" 24 | "void main(){\n" 25 | " FragColor=vec4(1)-vec4(texture(pre,texCoord).xyz,0);\n" 26 | "}"); 27 | } 28 | 29 | void Widget::resizeGL(int w, int h) 30 | { 31 | glViewport(0,0,w,h); 32 | } 33 | 34 | void Widget::paintGL() 35 | { 36 | glClear(GL_COLOR_BUFFER_BIT); 37 | GLTool::drawTexture(texture.textureId(),QRectF(-1,-1,1,1),90); 38 | GLTool::drawImage(QImage(":image.png"),QRectF(0,0,1,1),0); 39 | GLTool::drawText("hello",QFont(),QColor(10,100,200),QRectF(0,-1,1,1)); 40 | filter->runFilter(rect()); //这里的区域是窗口大小而非标准化坐标 41 | } 42 | -------------------------------------------------------------------------------- /GLTool/GLFilter.cpp: -------------------------------------------------------------------------------- 1 | #include "GLFilter.h" 2 | 3 | 4 | 5 | GLFilter::GLFilter(const QByteArray& filterCode) 6 | { 7 | VAO.create(); 8 | VBO.create(); 9 | VAO.bind(); 10 | GLfloat vertices[]={ 11 | -1, 1, //左上 12 | -1,-1, //左下 13 | 1, 1, //右上 14 | 1,-1 //右下 15 | }; 16 | VBO.bind(); 17 | VBO.allocate(vertices,sizeof (vertices)); 18 | program.create(); 19 | program.addShaderFromSourceCode(QOpenGLShader::Vertex, 20 | "#version 450 core\n" 21 | "in layout(location = 0 ) vec2 pos;\n" 22 | "out vec2 texCoord;\n" 23 | "void main(){\n" 24 | " gl_Position=vec4(pos,0,1);\n" 25 | " texCoord=(pos+1)/2;" 26 | "}\n"); 27 | 28 | program.addShaderFromSourceCode(QOpenGLShader::Fragment, 29 | filterCode); 30 | program.link(); 31 | program.enableAttributeArray(0); 32 | program.setAttributeBuffer(0,GL_FLOAT,0,2); 33 | VAO.release(); 34 | VBO.release(); 35 | } 36 | 37 | 38 | 39 | -------------------------------------------------------------------------------- /WaveEffect/widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | 12 | class Widget : public QOpenGLWidget ,protected QOpenGLExtraFunctions 13 | { 14 | Q_OBJECT 15 | 16 | public: 17 | Widget(QWidget *parent = nullptr); 18 | ~Widget(); 19 | protected: 20 | virtual void initializeGL() override; 21 | virtual void paintGL() override; 22 | virtual void resizeGL(int w,int h) override; 23 | virtual void mousePressEvent(QMouseEvent*) override; 24 | 25 | private: 26 | void runMousePoints(); 27 | private: 28 | QOpenGLFramebufferObject* FBO; 29 | QOpenGLVertexArrayObject VAO; 30 | QOpenGLBuffer VBO; 31 | QOpenGLTexture background; 32 | QOpenGLShaderProgram waveProgram; 33 | QOpenGLShaderProgram renderProgram; 34 | QVector mouse; 35 | float frequency = 0.1; //频率 36 | float amplitude = 0.1; //最大振幅 37 | float wave_width = 100; //波纹的宽度 38 | float depth = 1; //水平面距离背景图片的深度 39 | float speed = 1000; //水纹的移动速度 40 | float lifetime = 1000; 41 | float lastTime; 42 | }; 43 | #endif // WIDGET_H 44 | -------------------------------------------------------------------------------- /Section6_GlowEffect/Section6_GlowEffect.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../GLTool/release/ -lGLTool 31 | else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../GLTool/debug/ -lGLTool 32 | 33 | INCLUDEPATH += $$PWD/../GLTool 34 | DEPENDPATH += $$PWD/../GLTool 35 | -------------------------------------------------------------------------------- /Section4_2DTextByTool/Section4_2DTextByTool.pro: -------------------------------------------------------------------------------- 1 | QT += core gui 2 | 3 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 4 | 5 | CONFIG += c++11 6 | 7 | # The following define makes your compiler emit warnings if you use 8 | # any Qt feature that has been marked deprecated (the exact warnings 9 | # depend on your compiler). Please consult the documentation of the 10 | # deprecated API in order to know how to port your code away from it. 11 | DEFINES += QT_DEPRECATED_WARNINGS 12 | 13 | # You can also make your code fail to compile if it uses deprecated APIs. 14 | # In order to do so, uncomment the following line. 15 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 16 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 17 | 18 | SOURCES += \ 19 | main.cpp \ 20 | widget.cpp 21 | 22 | HEADERS += \ 23 | widget.h 24 | 25 | # Default rules for deployment. 26 | qnx: target.path = /tmp/$${TARGET}/bin 27 | else: unix:!android: target.path = /opt/$${TARGET}/bin 28 | !isEmpty(target.path): INSTALLS += target 29 | 30 | 31 | win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../GLTool/release/ -lGLTool 32 | else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../GLTool/debug/ -lGLTool 33 | 34 | INCLUDEPATH += $$PWD/../GLTool 35 | DEPENDPATH += $$PWD/../GLTool 36 | 37 | -------------------------------------------------------------------------------- /Section4_2DTextByTool/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | #include 3 | #include 4 | #include "GLTool.h" 5 | Widget::Widget(QWidget *parent) 6 | : QOpenGLWidget(parent) 7 | , texture(QOpenGLTexture::Target2D) 8 | { 9 | timer.setInterval(20); //设置定时器刷新间隔 10 | //定时调用重绘函数repaint(也可以调用update，只不过update不是直接响应) 11 | connect(&timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 12 | timer.start(); 13 | } 14 | 15 | Widget::~Widget() 16 | { 17 | } 18 | 19 | void Widget::initializeGL() 20 | { 21 | initializeOpenGLFunctions(); 22 | glClearColor(0,0,0,0); 23 | glClear(GL_COLOR_BUFFER_BIT); 24 | } 25 | 26 | void Widget::paintGL() 27 | { 28 | QString text=QTime::currentTime().toString(); 29 | QFont font("微软雅黑",40); 30 | QFontMetrics fontMetrics(font); //Qt中用来测量字体尺寸的 31 | QRect bounding=fontMetrics.boundingRect(text); 32 | QRect viewport(0,0,bounding.width(),bounding.height()); //将OpenGL的视口调整为文字区域，且在屏幕中心 33 | viewport.moveCenter(rect().center()); 34 | glViewport(viewport.x(),viewport.y(),viewport.width(),viewport.height()); 35 | GLTool::drawText(text,font,QColor(50,100,200)); //绘制纹理，填充整个视口（viewport） 36 | } 37 | 38 | void Widget::resizeGL(int w, int h) 39 | { 40 | glViewport(0,0,w,h); 41 | } 42 | 43 | 44 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/Widget.h: -------------------------------------------------------------------------------- 1 | #ifndef WIDGET_H 2 | #define WIDGET_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | 14 | class Widget : public QOpenGLWidget, public QOpenGLExtraFunctions 15 | { 16 | Q_OBJECT 17 | 18 | public: 19 | Widget(QWidget *parent = nullptr); 20 | ~Widget(); 21 | int numOfPerFrame = 100; 22 | float lifetime = 1; 23 | double defaultSize=5; 24 | // QOpenGLWidget interface 25 | protected: 26 | virtual void initializeGL() override; 27 | virtual void resizeGL(int w, int h) override; 28 | virtual void paintGL() override; 29 | 30 | protected: 31 | void createParticles(); 32 | void updateParticles(); 33 | void renderParticles(); 34 | 35 | private: 36 | struct Particle{ 37 | QVector3D position; 38 | QVector3D velocity; 39 | float size; 40 | float life; 41 | QVector4D color; 42 | }; 43 | 44 | QOpenGLShaderProgram updateProgram; 45 | QOpenGLShaderProgram renderProgram; 46 | QOpenGLVertexArrayObject VAO; 47 | 48 | QOpenGLBuffer VBO; 49 | QOpenGLBuffer VBOBuffer; 50 | 51 | GLuint particleQuery; 52 | GLuint currentNumOfParticles = 0; 53 | QTime timeOfLastFrame; 54 | }; 55 | 56 | #endif // WIDGET_H 57 | -------------------------------------------------------------------------------- /Day02/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | Widget::Widget(QWidget *parent) 3 | : QOpenGLWidget(parent) 4 | , VBO(QOpenGLBuffer::VertexBuffer) 5 | , EBO(QOpenGLBuffer::IndexBuffer) 6 | { 7 | } 8 | 9 | Widget::~Widget() 10 | { 11 | makeCurrent(); 12 | } 13 | 14 | void Widget::initializeGL() 15 | { 16 | initializeOpenGLFunctions(); 17 | glClearColor(0.0f,0.5f,0.9f,1.0f); 18 | GL_TEXTURE_2D 19 | glClear(GL_COLOR_BUFFER_BIT); 20 | VAO.create(); 21 | VAO.bind(); 22 | VBO.create(); 23 | VBO.bind(); 24 | EBO.create(); 25 | EBO.bind(); 26 | uint elements[]={0,1,3}; 27 | 28 | EBO.allocate(elements,sizeof(elements)); 29 | float vertices[]={ 30 | 0.5f, 0.5f, 0.0f, // 右上角 31 | 0.5f, -0.5f, 0.0f, // 右下角 32 | -0.5f, 0.5f, 0.0f, // 左上角 33 | -0.5f, -0.5f, 0.0f, // 左下角 34 | }; 35 | VBO.allocate(vertices,sizeof (vertices)); 36 | 37 | shaderProgram.create(); 38 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/gl.vert"); 39 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/gl.frag"); 40 | shaderProgram.link(); 41 | shaderProgram.enableAttributeArray(0); 42 | shaderProgram.setAttributeBuffer(0,GL_FLOAT,0,3); //将VBO和EBO的id，以及解析格式存储到VAO中 43 | VAO.release(); 44 | VBO.release(); 45 | EBO.release(); 46 | } 47 | 48 | void Widget::paintGL() 49 | { 50 | shaderProgram.bind(); 51 | QOpenGLVertexArrayObject::Binder bind(&VAO); 52 | glDrawElements(GL_TRIANGLES,3,GL_UNSIGNED_INT,nullptr); 53 | } 54 | 55 | void Widget::resizeGL(int w, int h) 56 | { 57 | glViewport(0,0,w,h); 58 | } 59 | 60 | -------------------------------------------------------------------------------- /GLTool/GLTool.cpp: -------------------------------------------------------------------------------- 1 | #include "GLTool.h" 2 | #include 3 | #include 4 | #include 5 | namespace GLTool { 6 | TextureTool* textureTool=nullptr; 7 | 8 | void drawTexture(const QOpenGLTexture &texture, QRectF geomtry, float rotation) 9 | { 10 | drawTexture(texture.textureId(),geomtry, rotation); 11 | } 12 | 13 | GLFilter *createFilter(const QByteArray &code) 14 | { 15 | return new GLFilter(code); 16 | } 17 | 18 | void drawTexture(GLuint textureId, QRectF geomtry, float rotation) 19 | { 20 | if(textureTool==nullptr) 21 | textureTool=new TextureTool(); 22 | textureTool->drawTexture(textureId,geomtry,rotation); 23 | } 24 | 25 | void drawImage(QImage image, QRectF geomtry, float rotation) 26 | { 27 | if(textureTool==nullptr) 28 | textureTool=new TextureTool(); 29 | textureTool->drawImage(image,geomtry,rotation); 30 | } 31 | 32 | QImage createTextImgae(QString text, QFont font, QColor fontColor) 33 | { 34 | QFontMetrics fontMetrics(font); //Qt中用来测量字体尺寸的 35 | QRect bounding=fontMetrics.boundingRect(text); //获取到字符串的外包矩形 36 | QImage image(bounding.size(),QImage::Format_ARGB32); 37 | image.fill(Qt::transparent); //使用透明色填充Image 38 | QPainter painter(&image); 39 | painter.setRenderHints(QPainter::TextAntialiasing|QPainter::Antialiasing); //开启抗锯齿 40 | painter.setFont(font); 41 | painter.setPen(fontColor); 42 | painter.drawText(QRect(0,0,image.width(),image.height()),Qt::AlignCenter,text); 43 | painter.end(); 44 | return image; 45 | } 46 | 47 | void drawText(QString text, QFont font, QColor fontColor, QRectF geomtry, float rotation) 48 | { 49 | if(textureTool==nullptr) 50 | textureTool=new TextureTool(); 51 | textureTool->drawImage(createTextImgae(text,font,fontColor),geomtry,rotation); 52 | } 53 | 54 | 55 | 56 | } 57 | -------------------------------------------------------------------------------- /GLTool/GLTool.h: -------------------------------------------------------------------------------- 1 | #ifndef GLTOOL_H 2 | #define GLTOOL_H 3 | 4 | #include "TextureTool.h" 5 | #include "GLFilter.h" 6 | #include 7 | #include 8 | #include 9 | 10 | /** 11 | * 所有的工具函数接口将置于此命名空间中 12 | */ 13 | 14 | namespace GLTool { 15 | extern TextureTool* textureTool; 16 | 17 | /** 18 | * @brief drawTexture 该函数用于在指定区域绘制纹理图形 19 | * @param texture 纹理对象 20 | * @param geomtry 图像将绘制在该标准化坐标区域 21 | * @param rotation 按纹理中心进行旋转的旋转角度 22 | */ 23 | void drawTexture(const QOpenGLTexture& texture, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 24 | 25 | /** 26 | * @brief drawTexture 该函数用于在指定区域绘制纹理图形 27 | * @param textureId 纹理对象的id 28 | * @param geomtry 图像将绘制在该标准化坐标区域 29 | * @param rotation 按纹理中心进行旋转的旋转角度 30 | */ 31 | void drawTexture(GLuint textureId, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 32 | 33 | /** 34 | * @brief drawImage 该函数用于在指定区域绘制QImage 35 | * @param image QImage对象 36 | * @param geomtry 图像将绘制在该标准化坐标区域 37 | * @param rotation 按纹理中心进行旋转的旋转角度 38 | */ 39 | void drawImage(QImage image, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 40 | 41 | /** 42 | * @brief drawText 该函数用于在指定区域绘制文字 43 | * @param text 文字内容 44 | * @param font 字体属性（包含字体类型，字体大小，加粗，斜体等数据） 45 | * @param fontColor 字体颜色 46 | * @param geomtry 图像将绘制在该标准化坐标区域 47 | * @param rotation 按纹理中心进行旋转的旋转角度 48 | */ 49 | void drawText(QString text, QFont font=QFont(), QColor fontColor=Qt::red, QRectF geomtry=QRectF(-1,-1,2,2), float rotation=0); 50 | 51 | /** 52 | * @brief createTextImgae 该函数用于创建文字的QImage图像，使用该Image能实现3D文字的显示 53 | * @param text 文字内容 54 | * @param font 字体属性（包含字体类型，字体大小，加粗，斜体等数据） 55 | * @param fontColor 字体颜色 56 | * @return 返回文字的QImage 57 | */ 58 | QImage createTextImgae(QString text, QFont font=QFont(), QColor fontColor=Qt::red); 59 | GLFilter* createFilter(const QByteArray& code); 60 | } 61 | 62 | #endif // GLTOOL_H 63 | -------------------------------------------------------------------------------- /Day04_GLSLSandbox/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | #include 3 | #include 4 | 5 | Widget::Widget(QWidget *parent) 6 | : QOpenGLWidget(parent) 7 | { 8 | QTimer *timer=new QTimer; 9 | connect(timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 10 | timer->setInterval(17); 11 | timer->start(); 12 | } 13 | 14 | Widget::~Widget() 15 | { 16 | } 17 | 18 | void Widget::initializeGL() 19 | { 20 | initializeOpenGLFunctions(); 21 | glClearColor(0,0,0,0); 22 | shaderProgram.create(); 23 | 24 | shaderProgram.addShaderFromSourceCode(QOpenGLShader::Vertex,"#version 450 core\n" 25 | "layout(location = 0) in vec2 aPos;\n" 26 | "void main(){\n" 27 | " gl_Position = vec4(aPos,0,1); \n" 28 | "}"); 29 | 30 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/GLSLSandbox.frag"); 31 | shaderProgram.link(); 32 | shaderProgram.enableAttributeArray(0); //开启0号顶点数据 33 | } 34 | 35 | void Widget::paintGL() 36 | { 37 | glClear(GL_COLOR_BUFFER_BIT); 38 | shaderProgram.bind(); 39 | 40 | float time=QTime::currentTime().msecsSinceStartOfDay()/1000.0f; 41 | shaderProgram.setUniformValue("time",time); //输入时间 42 | 43 | QVector2D resolution(this->width(),this->height()); //输入窗口分辨率 44 | shaderProgram.setUniformValue("resolution",resolution); 45 | 46 | QVector2D vertices[4]={ 47 | {-1,-1}, 48 | {-1, 1}, 49 | { 1,-1}, 50 | { 1, 1}}; 51 | 52 | shaderProgram.setAttributeArray(0,vertices); //从客户端传递顶点数据 53 | 54 | glDrawArrays(GL_TRIANGLE_STRIP,0,4); //需要保证没有绑定VAO和VBO 55 | 56 | shaderProgram.release(); 57 | } 58 | 59 | void Widget::resizeGL(int w, int h) 60 | { 61 | glViewport(0,0,w,h); 62 | } 63 | 64 | -------------------------------------------------------------------------------- /OpenGLTransformFeedback/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | Widget::Widget(QWidget *parent) 4 | : QOpenGLWidget(parent) 5 | , VBO(QOpenGLBuffer::VertexBuffer) 6 | , VBOBuffer(QOpenGLBuffer::IndexBuffer) 7 | { 8 | } 9 | 10 | Widget::~Widget() 11 | { 12 | makeCurrent(); 13 | } 14 | 15 | void Widget::initializeGL() 16 | { 17 | initializeOpenGLFunctions(); 18 | glClearColor(0.0f,0.5f,0.9f,1.0f); 19 | glClear(GL_COLOR_BUFFER_BIT); 20 | float vertices[]={ 21 | 0.5f, 0.5f, 0.0f, // 右上角 22 | 0.5f, -0.5f, 0.0f, // 右下角 23 | -0.5f, 0.5f, 0.0f, // 左上角 24 | -0.5f, -0.5f, 0.0f, // 左下角 25 | }; 26 | VAO.create(); 27 | VAO.bind(); 28 | VBO.create(); 29 | VBO.bind(); 30 | VBO.allocate(vertices,sizeof (vertices)); 31 | 32 | shaderProgram.create(); 33 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/feedback.vert"); 34 | 35 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Geometry,":/feedback.geom"); 36 | 37 | const char* var[]={"outValue"}; 38 | 39 | glTransformFeedbackVaryings(shaderProgram.programId(),1,var,GL_INTERLEAVED_ATTRIBS); 40 | shaderProgram.link(); 41 | shaderProgram.enableAttributeArray(0); 42 | shaderProgram.setAttributeBuffer(0,GL_FLOAT,0,1); //将VBO和EBO的id，以及解析格式存储到VAO中 43 | VBOBuffer.create(); 44 | VBOBuffer.bind(); 45 | VBOBuffer.allocate(sizeof (vertices)); 46 | VAO.release(); 47 | VBO.release(); 48 | VBOBuffer.release(); 49 | } 50 | 51 | void Widget::paintGL() 52 | { 53 | shaderProgram.bind(); 54 | QOpenGLVertexArrayObject::Binder bind(&VAO); 55 | glEnable(GL_RASTERIZER_DISCARD); 56 | glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER,0,VBOBuffer.bufferId()); 57 | glBeginTransformFeedback(GL_POINTS); 58 | glDrawArrays(GL_POINTS,0,3); 59 | glEndTransformFeedback(); 60 | glDisable(GL_RASTERIZER_DISCARD); 61 | VBOBuffer.bind(); 62 | float s[12]={0}; 63 | VBOBuffer.read(0,s,48); 64 | for(int i=0;i<12;i++) 65 | qDebug()< 3 | #include 4 | 5 | TextureTool::TextureTool() 6 | { 7 | VAO.create(); 8 | VBO.create(); 9 | VAO.bind(); 10 | GLfloat vertices[]={ 11 | -1, 1, //左上 12 | -1,-1, //左下 13 | 1, 1, //右上 14 | 1,-1 //右下 15 | }; 16 | VBO.bind(); 17 | VBO.allocate(vertices,sizeof (vertices)); 18 | program.create(); 19 | program.addShaderFromSourceCode(QOpenGLShader::Vertex, 20 | "#version 450 core\n" 21 | "in layout(location = 0 ) vec2 pos;\n" 22 | "out vec2 texCoord;\n" 23 | "uniform mat4 model;\n" 24 | "void main(){\n" 25 | " gl_Position=model*vec4(pos,0,1);\n" 26 | " texCoord=(pos+1)/2;" 27 | "}\n"); 28 | 29 | program.addShaderFromSourceCode(QOpenGLShader::Fragment, 30 | "#version 450 core\n" 31 | "in vec2 texCoord;\n" 32 | "uniform sampler2D tex;\n" 33 | "out vec4 FragColor;\n" 34 | "void main(){\n" 35 | " FragColor=texture(tex,texCoord);\n" 36 | "}\n"); 37 | program.link(); 38 | program.enableAttributeArray(0); 39 | program.setAttributeBuffer(0,GL_FLOAT,0,2); 40 | VAO.release(); 41 | VBO.release(); 42 | } 43 | 44 | void TextureTool::drawTexture(GLuint textureId, QRectF geomtry, float rotation) 45 | { 46 | QOpenGLFunctions *func =QOpenGLContext::currentContext()->functions(); 47 | QOpenGLVertexArrayObject::Binder bind(&VAO); 48 | program.bind(); 49 | QMatrix4x4 model; 50 | model.translate(geomtry.center().x(),geomtry.center().y()); 51 | model.rotate(rotation,QVector3D(0,0,1)); 52 | model.scale(geomtry.width()/2,geomtry.height()/2); 53 | program.setUniformValue("model",model); 54 | func->glActiveTexture(GL_TEXTURE0); 55 | func->glBindTexture(GL_TEXTURE_2D,textureId); 56 | func->glDrawArrays(GL_TRIANGLE_STRIP,0,4); 57 | program.release(); 58 | } 59 | 60 | void TextureTool::drawImage(QImage image, QRectF geomtry, float rotation) 61 | { 62 | QOpenGLTexture texture(QOpenGLTexture::Target2D); 63 | texture.create(); 64 | texture.setMinMagFilters(QOpenGLTexture::Linear,QOpenGLTexture::Linear); 65 | texture.setData(image.mirrored()); 66 | drawTexture(texture.textureId(),geomtry,rotation); 67 | } 68 | -------------------------------------------------------------------------------- /Day03_Text2D/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | #include 3 | #include 4 | 5 | 6 | Widget::Widget(QWidget *parent) 7 | : QOpenGLWidget(parent) 8 | , texture(QOpenGLTexture::Target2D) 9 | { 10 | timer.setInterval(20); //设置定时器刷新间隔 11 | //定时调用重绘函数repaint(也可以调用update，只不过update不是直接响应) 12 | connect(&timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 13 | timer.start(); 14 | } 15 | 16 | Widget::~Widget() 17 | { 18 | } 19 | 20 | void Widget::initializeGL() 21 | { 22 | initializeOpenGLFunctions(); 23 | glClearColor(0,0,0,0); 24 | glClear(GL_COLOR_BUFFER_BIT); 25 | 26 | VAO.create(); 27 | QOpenGLVertexArrayObject::Binder bind(&VAO); 28 | VBO.create(); 29 | VBO.bind(); 30 | float vertex[]={ 31 | //顶点 //纹理坐标 32 | -1.0f,-1.0f, 0.0f,0.0f, //左下 33 | -1.0f, 1.0f, 0.0f,1.0f, //左上 34 | 1.0f,-1.0f, 1.0f,0.0f, //右下 35 | 1.0f, 1.0f, 1.0f,1.0f //右上 36 | }; 37 | 38 | VBO.allocate(vertex,sizeof (vertex)); 39 | shaderProgram.create(); 40 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/text.vert"); 41 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/text.frag"); 42 | shaderProgram.link(); 43 | shaderProgram.enableAttributeArray(0); 44 | shaderProgram.enableAttributeArray(1); 45 | shaderProgram.setAttributeBuffer(0,GL_FLOAT,0, 2,4*sizeof (float)); 46 | shaderProgram.setAttributeBuffer(1,GL_FLOAT,2*sizeof (float),2,4*sizeof (float)); 47 | VBO.release(); 48 | } 49 | 50 | void Widget::paintGL() 51 | { 52 | shaderProgram.bind(); 53 | flushTexture(); 54 | texture.bind(0); 55 | shaderProgram.setUniformValue("texture",0); 56 | QOpenGLVertexArrayObject::Binder bind(&VAO); 57 | glDrawArrays(GL_TRIANGLE_STRIP,0,4); 58 | shaderProgram.release(); 59 | } 60 | 61 | void Widget::resizeGL(int w, int h) 62 | { 63 | glViewport(0,0,w,h); 64 | } 65 | 66 | void Widget::flushTexture() 67 | { 68 | QString text=QTime::currentTime().toString(); 69 | QFont font("微软雅黑",50); 70 | QFontMetrics fontMetrics(font); //Qt中用来测量字体尺寸的 71 | QRect bounding=fontMetrics.boundingRect(text); //获取到字符串的外包矩形 72 | QImage image(bounding.size(),QImage::Format_ARGB32); 73 | image.fill(Qt::transparent); //使用透明色填充Image 74 | QPainter painter(&image); 75 | painter.setFont(font); 76 | painter.setPen(QColor(0,90,200)); 77 | painter.drawText(QRect(0,0,image.width(),image.height()),Qt::AlignCenter,text); 78 | painter.end(); 79 | if(texture.isCreated()) 80 | texture.destroy(); //销毁纹理，重新分配存储 81 | texture.create(); //通过这种方法来实现动态纹理适应于纹理尺寸会动态变化的情况，内存分配会占用一定性能，但在这里影响微乎其微（如果是绘制视频帧，那么就需要提前分配存储，之后动态上传像素数据） 82 | texture.setData(image.mirrored()); 83 | } 84 | 85 | -------------------------------------------------------------------------------- /OpenGLInstance/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | Widget::Widget(QWidget *parent) 4 | : QOpenGLWidget(parent) 5 | { 6 | } 7 | 8 | Widget::~Widget() 9 | { 10 | } 11 | 12 | void Widget::initializeGL() 13 | { 14 | initializeOpenGLFunctions(); 15 | glClearColor(0,0,0,1); 16 | 17 | float quadVertices[] = { 18 | // 位置 // 颜色 19 | -0.05f, 0.05f, 1.0f, 0.0f, 0.0f, 20 | 0.05f, -0.05f, 0.0f, 1.0f, 0.0f, 21 | -0.05f, -0.05f, 0.0f, 0.0f, 1.0f, 22 | 23 | -0.05f, 0.05f, 1.0f, 0.0f, 0.0f, 24 | 0.05f, -0.05f, 0.0f, 1.0f, 0.0f, 25 | 0.05f, 0.05f, 0.0f, 1.0f, 1.0f 26 | }; 27 | VAO.create(); 28 | VAO.bind(); 29 | VBO.create(); 30 | VBO.bind(); 31 | VBO.allocate(quadVertices,sizeof (quadVertices)); 32 | 33 | shaderProgram.create(); 34 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/gl.vert"); 35 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/gl.frag"); 36 | shaderProgram.link(); 37 | shaderProgram.enableAttributeArray(0); 38 | shaderProgram.enableAttributeArray(1); 39 | shaderProgram.setAttributeBuffer(0,GL_FLOAT,0,2,5*sizeof (float)); 40 | shaderProgram.setAttributeBuffer(1,GL_FLOAT,2*sizeof (float),3,5*sizeof (float)); 41 | 42 | 43 | 44 | float offset = 0.1f; 45 | QVector vec; 46 | for(int y = -10; y < 10; y += 2) 47 | { 48 | for(int x = -10; x < 10; x += 2) 49 | { 50 | QMatrix4x4 mat; 51 | mat.translate(x/ 10.0f + offset,y / 10.0f + offset); 52 | mat.rotate((x+y)*10,QVector3D(0,0,1)); 53 | vec.push_back(mat.column(0)); 54 | vec.push_back(mat.column(1)); 55 | vec.push_back(mat.column(2)); 56 | vec.push_back(mat.column(3)); 57 | } 58 | } 59 | 60 | instanceVBO.create(); 61 | instanceVBO.bind(); 62 | instanceVBO.allocate(vec.data(),vec.size()*sizeof (QVector4D)); 63 | shaderProgram.enableAttributeArray(2); 64 | shaderProgram.setAttributeBuffer(2,GL_FLOAT,0,4,4*sizeof (QVector4D)); 65 | glVertexAttribDivisor(2,1); 66 | 67 | shaderProgram.enableAttributeArray(3); 68 | shaderProgram.setAttributeBuffer(3,GL_FLOAT,1*sizeof (QVector4D),4,4*sizeof (QVector4D)); 69 | glVertexAttribDivisor(3,1); 70 | 71 | shaderProgram.enableAttributeArray(4); 72 | shaderProgram.setAttributeBuffer(4,GL_FLOAT,2*sizeof (QVector4D),4,4*sizeof (QVector4D)); 73 | glVertexAttribDivisor(4,1); 74 | 75 | shaderProgram.enableAttributeArray(5); 76 | shaderProgram.setAttributeBuffer(5,GL_FLOAT,3*sizeof (QVector4D),4,4*sizeof (QVector4D)); 77 | glVertexAttribDivisor(5,1); 78 | 79 | instanceVBO.release(); 80 | 81 | } 82 | 83 | void Widget::paintGL() 84 | { 85 | VAO.bind(); 86 | shaderProgram.bind(); 87 | glDrawArraysInstanced(GL_TRIANGLES,0,6,100); 88 | } 89 | 90 | void Widget::resizeGL(int w, int h) 91 | { 92 | glViewport(0,0,w,h); 93 | } 94 | 95 | -------------------------------------------------------------------------------- /Day04/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | #include 3 | #include 4 | 5 | Widget::Widget(QWidget *parent) 6 | : QOpenGLWidget(parent) 7 | , VBO(QOpenGLBuffer::VertexBuffer) 8 | , EBO(QOpenGLBuffer::IndexBuffer) 9 | , texture(QOpenGLTexture::Target2D) 10 | { 11 | connect(&timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 12 | timer.setInterval(17); //设置刷新间隔为17ms，约为60帧 13 | timer.start(); 14 | } 15 | 16 | Widget::~Widget() 17 | { 18 | makeCurrent(); 19 | } 20 | 21 | void Widget::initializeGL() 22 | { 23 | initializeOpenGLFunctions(); //初始化QOpenGLFunctions，其本质是将QOpenGLFunctions与当前OpenGL上下文进行绑定 24 | glClearColor(0.0f,0.5f,0.9f,1.0f); //设置清屏颜色 25 | glClear(GL_COLOR_BUFFER_BIT); //清空颜色缓存区 26 | VAO.create(); 27 | VAO.bind(); 28 | VBO.create(); 29 | VBO.bind(); 30 | EBO.create(); 31 | EBO.bind(); 32 | 33 | uint elements[]={0,1,2,3}; 34 | EBO.allocate(elements,sizeof(elements));//向GPU申请分配EBO内存，并把索引数组写入到EBO中 35 | 36 | float vertices[]={ 37 | 0.5f, 0.5f, 0.0f, 1.0f, 1.0f, // 右上角 38 | 0.5f, -0.5f, 0.0f, 1.0f, 0.0f, // 右下角 39 | -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, // 左上角 40 | -0.5f, -0.5f, 0.0f, 0.0f, 0.0f, // 左下角 41 | }; 42 | 43 | VBO.allocate(vertices,sizeof (vertices)); 44 | 45 | texture.create(); //向GPU申请创建纹理对象 46 | texture.setData(QImage(":/OpenGL.jpg").mirrored()); //从QImage导入像素数据（内部会自动设置格式和分配存储） 47 | 48 | shaderProgram.create(); 49 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/gl.vert"); 50 | shaderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/gl.frag"); 51 | shaderProgram.link(); 52 | 53 | shaderProgram.enableAttributeArray(0); 54 | shaderProgram.setAttributeBuffer(0,GL_FLOAT,0,3,5*sizeof (float)); //将VBO和EBO的id，以及解析格式存储到当前VAO中 55 | 56 | shaderProgram.enableAttributeArray(1); 57 | shaderProgram.setAttributeBuffer(1,GL_FLOAT,3*sizeof (float),2,5*sizeof (float)); 58 | 59 | VAO.release(); 60 | VBO.release(); //作用同 QOpenGLBuffer::release(QOpenGLBuffer::VertexBuffer) 61 | EBO.release(); //作用同 QOpenGLBuffer::release(QOpenGLBuffer::IndexBuffer) 62 | } 63 | 64 | void Widget::paintGL() 65 | { 66 | shaderProgram.bind(); 67 | texture.bind(0); //将纹理对象绑定到0号纹理单元 68 | shaderProgram.setUniformValue("texture",0); //设置采样器[sample texture]从0号纹理单元获取数据 69 | 70 | double sec=QTime::currentTime().msecsSinceStartOfDay()/1000.0; //获取当前时间的毫秒数，除以1000.0得到精度为0.001的秒数。 71 | float mValue = qAbs(qSin(sec)); //setUniformValue并没有以double为参数的封装，因此需要使用float 72 | shaderProgram.setUniformValue("mValue",mValue); //设置uniform中【mValue】的值 73 | 74 | QOpenGLVertexArrayObject::Binder bind(&VAO); //构造时调用VAO.bind()，析构时调用VAO.release() 75 | glDrawElements(GL_TRIANGLE_STRIP,4,GL_UNSIGNED_INT,nullptr); 76 | } 77 | 78 | void Widget::resizeGL(int w, int h) 79 | { 80 | glViewport(0,0,w,h); 81 | } 82 | 83 | -------------------------------------------------------------------------------- /GLTool/GLFilter.h: -------------------------------------------------------------------------------- 1 | #ifndef GLFILTER_H 2 | #define GLFILTER_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | class GLFilter 11 | { 12 | public: 13 | GLFilter(const QByteArray &filterCode); 14 | template> 15 | void runFilter(QOpenGLFramebufferObject * readFBO, QRect readGeomtry, QOpenGLFramebufferObject * writeFBO, QRect drawGeomtry,ShaderProgramFunction function=[](QOpenGLShaderProgram&){}) 16 | { 17 | QOpenGLFunctions* func=QOpenGLContext::currentContext()->functions(); 18 | if(fbo!=nullptr&&fbo->size()!=readGeomtry.size()) 19 | delete fbo; 20 | if(fbo==nullptr) 21 | fbo=new QOpenGLFramebufferObject(readGeomtry.width(),readGeomtry.height()); 22 | QOpenGLFramebufferObject::blitFramebuffer(fbo,QRect(0,0,fbo->width(),fbo->height()),readFBO,readGeomtry); 23 | if(writeFBO!=nullptr) 24 | writeFBO->bind(); 25 | 26 | program.bind(); 27 | func->glActiveTexture(GL_TEXTURE0); 28 | func->glBindTexture(GL_TEXTURE_2D,fbo->texture()); 29 | function(program); 30 | QOpenGLVertexArrayObject::Binder binder(&VAO); 31 | func->glDrawArrays(GL_TRIANGLE_STRIP,0,4); 32 | if(writeFBO!=nullptr) 33 | writeFBO->release(); 34 | program.release(); 35 | } 36 | 37 | template> 38 | void runFilter(QRect geomtry,ShaderProgramFunction function=[](QOpenGLShaderProgram&){}) 39 | { 40 | QOpenGLFunctions* func=QOpenGLContext::currentContext()->functions(); 41 | if(fbo!=nullptr&&fbo->size()!=geomtry.size()) 42 | delete fbo; 43 | 44 | GLuint prevFbo = 0; //获取当前绑定的FBO 45 | func->glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint *) &prevFbo); 46 | if(fbo==nullptr) 47 | fbo=new QOpenGLFramebufferObject(geomtry.width(),geomtry.height()); //由于Qt创建FBO的同时会进行绑定 48 | QOpenGLFramebufferObject::blitFramebuffer(fbo,QRect(0,0,fbo->width(),fbo->height()),nullptr,geomtry); 49 | 50 | func->glBindFramebuffer(GL_FRAMEBUFFER,prevFbo); //所以要在这里进行复原 51 | 52 | GLint preViewport[4] = {0}; 53 | func->glGetIntegerv(GL_VIEWPORT, preViewport); //获取当前的viewport数据 54 | 55 | func->glViewport(geomtry.x(),geomtry.y(),geomtry.width(),geomtry.height()); 56 | 57 | func->glScissor(geomtry.x(),geomtry.y(),geomtry.width(),geomtry.height()); //清除指定区域 58 | func->glEnable(GL_SCISSOR_TEST); 59 | func->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 60 | func->glDisable(GL_SCISSOR_TEST); 61 | program.bind(); 62 | 63 | func->glActiveTexture(GL_TEXTURE0); 64 | func->glBindTexture(GL_TEXTURE_2D,fbo->texture()); 65 | 66 | function(program); 67 | 68 | QOpenGLVertexArrayObject::Binder binder(&VAO); 69 | 70 | func->glDrawArrays(GL_TRIANGLE_STRIP,0,4); 71 | program.release(); 72 | func->glViewport(preViewport[0],preViewport[1],preViewport[2],preViewport[3]); 73 | } 74 | private: 75 | QOpenGLVertexArrayObject VAO; 76 | QOpenGLBuffer VBO; 77 | QOpenGLShaderProgram program; 78 | QOpenGLFramebufferObject* fbo=nullptr; 79 | }; 80 | 81 | #endif // GLFILTER_H 82 | -------------------------------------------------------------------------------- /WaveEffect/widget.cpp: -------------------------------------------------------------------------------- 1 | #include "widget.h" 2 | 3 | #include 4 | #include 5 | #include 6 | 7 | Widget::Widget(QWidget *parent) 8 | : QOpenGLWidget(parent) 9 | , background(QOpenGLTexture::Target2D) 10 | { 11 | QTimer *timer = new QTimer(); 12 | connect(timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 13 | timer->setInterval(17); 14 | timer->start(); 15 | } 16 | 17 | Widget::~Widget() 18 | { 19 | makeCurrent(); 20 | } 21 | 22 | void Widget::initializeGL() 23 | { 24 | initializeOpenGLFunctions (); 25 | VAO.create (); 26 | VBO.create (); 27 | FBO=new QOpenGLFramebufferObject(size(),QOpenGLFramebufferObject::NoAttachment,GL_TEXTURE_2D,GL_RED); 28 | waveProgram.create(); 29 | renderProgram.create(); 30 | waveProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/wave.vert"); 31 | waveProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/wave.frag"); 32 | waveProgram.link(); 33 | 34 | renderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/render.vert"); 35 | renderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/render.frag"); 36 | renderProgram.link(); 37 | 38 | background.create(); 39 | background.setWrapMode(QOpenGLTexture::MirroredRepeat); 40 | background.setMinMagFilters(QOpenGLTexture::Linear,QOpenGLTexture::Linear); 41 | background.setData(QImage(":/background.jpg").mirrored()); 42 | 43 | VAO.bind (); 44 | VBO.bind (); 45 | float vertices[]={ 46 | -1,-1, 47 | 1,-1, 48 | -1, 1, 49 | 1, 1, 50 | }; 51 | 52 | VBO.allocate (vertices,sizeof (vertices)); 53 | waveProgram.setAttributeBuffer(0,GL_FLOAT,0,2,2*sizeof (float)); 54 | waveProgram.enableAttributeArray(0); 55 | renderProgram.enableAttributeArray(0);; 56 | VBO.release(); 57 | VAO.release(); 58 | 59 | lastTime=QTime::currentTime().msecsSinceStartOfDay(); 60 | 61 | } 62 | 63 | void Widget::paintGL() 64 | { 65 | glClear(GL_COLOR_BUFFER_BIT); 66 | QOpenGLVertexArrayObject::Binder bind(&VAO); 67 | FBO->bind(); 68 | waveProgram.bind(); 69 | waveProgram.setUniformValueArray("mouse",mouse.data(),mouse.size()); 70 | waveProgram.setUniformValue("size",mouse.size()); 71 | waveProgram.setUniformValue("frequency",frequency); 72 | waveProgram.setUniformValue("amplitude",amplitude); 73 | waveProgram.setUniformValue("wave_width",wave_width); 74 | waveProgram.setUniformValue("speed",speed); 75 | glDrawArrays(GL_TRIANGLE_STRIP,0,4); 76 | FBO->release(); 77 | 78 | renderProgram.bind(); 79 | glActiveTexture(GL_TEXTURE0); 80 | glBindTexture(GL_TEXTURE_2D,FBO->texture()); 81 | background.bind(1); 82 | renderProgram.setUniformValue("wave",0); 83 | renderProgram.setUniformValue("background",1); 84 | renderProgram.setUniformValue("screen_width",QVector2D(width(),height())); 85 | renderProgram.setUniformValue("depth",depth); 86 | GL_RGBA 87 | glDrawArrays(GL_TRIANGLE_STRIP,0,4); 88 | runMousePoints(); 89 | } 90 | 91 | void Widget::resizeGL(int w, int h) 92 | { 93 | glViewport (0,0,w,h); 94 | delete FBO; 95 | FBO=new QOpenGLFramebufferObject(w,h,QOpenGLFramebufferObject::NoAttachment,GL_TEXTURE_2D,GL_RED); 96 | } 97 | 98 | void Widget::mousePressEvent(QMouseEvent *e) 99 | { 100 | mouse.push_back(QVector3D(e->x(),height()-e->y(),0)); 101 | } 102 | 103 | void Widget::runMousePoints() 104 | { 105 | float currentTime=QTime::currentTime().msecsSinceStartOfDay(); 106 | float dure=currentTime-lastTime; 107 | float run=dure/lifetime; 108 | QVector temp; 109 | for(auto it:mouse){ 110 | QVector3D m=it+QVector3D(0,0,run); 111 | if(m.z()<=1) 112 | temp.push_back(m); 113 | } 114 | mouse=temp; 115 | lastTime=currentTime; 116 | } 117 | 118 | -------------------------------------------------------------------------------- /Section7_GPUParticleSystem/Widget.cpp: -------------------------------------------------------------------------------- 1 | #include "Widget.h" 2 | 3 | #include 4 | 5 | const int MAX_PARTICLES_SIZE = 1000000; 6 | 7 | Widget::Widget(QWidget *parent) 8 | : QOpenGLWidget(parent) 9 | { 10 | setMinimumSize(800,600); 11 | QTimer *timer=new QTimer(this); 12 | timer->setInterval(18); //设置定时器刷新间隔 13 | //定时调用重绘函数repaint(也可以调用update，只不过update不是直接响应) 14 | connect(timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 15 | timer->start(); 16 | } 17 | 18 | Widget::~Widget() 19 | { 20 | } 21 | 22 | void Widget::initializeGL() 23 | { 24 | initializeOpenGLFunctions(); 25 | 26 | VBO.create(); 27 | VBO.bind(); 28 | VBO.setUsagePattern(QOpenGLBuffer::DynamicDraw); 29 | VBO.allocate(sizeof (Particle)*MAX_PARTICLES_SIZE); 30 | 31 | VBOBuffer.create(); 32 | VBOBuffer.bind(); 33 | VBOBuffer.setUsagePattern(QOpenGLBuffer::DynamicDraw); 34 | VBOBuffer.allocate(sizeof (Particle)*MAX_PARTICLES_SIZE); 35 | 36 | glGenQueries(1,&particleQuery); 37 | 38 | VAO.create(); 39 | VAO.bind(); 40 | 41 | updateProgram.create(); 42 | updateProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/ParticleRunner.vert"); 43 | updateProgram.addShaderFromSourceFile(QOpenGLShader::Geometry,":/ParticleRunner.geom"); 44 | 45 | const char* feedbackVar[5]={"position","velocity","size","life","color"}; 46 | glTransformFeedbackVaryings(updateProgram.programId(),5,feedbackVar,GL_INTERLEAVED_ATTRIBS); 47 | updateProgram.link(); 48 | 49 | VBO.bind(); 50 | updateProgram.enableAttributeArray(0); 51 | updateProgram.enableAttributeArray(1); 52 | updateProgram.enableAttributeArray(2); 53 | updateProgram.enableAttributeArray(3); 54 | updateProgram.enableAttributeArray(4); 55 | 56 | renderProgram.create(); 57 | renderProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,":/ParticleRender.vert"); 58 | renderProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,":/ParticleRender.frag"); 59 | renderProgram.link(); 60 | 61 | timeOfLastFrame=QTime::currentTime(); 62 | 63 | glEnable(GL_PROGRAM_POINT_SIZE); 64 | } 65 | 66 | void Widget::resizeGL(int w, int h) 67 | { 68 | glViewport(0,0,w,h); 69 | } 70 | 71 | void Widget::paintGL() 72 | { 73 | createParticles(); 74 | updateParticles(); 75 | renderParticles(); 76 | } 77 | 78 | void Widget::createParticles() 79 | { 80 | VAO.bind(); 81 | VBO.bind(); 82 | QVector createBuffer; 83 | for(int i=0;i 3 | #include 4 | #include 5 | #include "GLTool.h" 6 | Widget::Widget(QWidget *parent) 7 | : QOpenGLWidget(parent) 8 | { 9 | timer.setInterval(20); //设置定时器刷新间隔 10 | //定时调用重绘函数repaint(也可以调用update，只不过update不是直接响应) 11 | connect(&timer,&QTimer::timeout,this,static_cast(&QWidget::repaint)); 12 | timer.start(); 13 | 14 | QSurfaceFormat format; 15 | format.setSamples(10); 16 | this->setFormat(format); 17 | } 18 | 19 | Widget::~Widget() 20 | { 21 | } 22 | 23 | void Widget::setBlurRadius(int radius) 24 | { 25 | Q_ASSERT(radius>=1); 26 | guassWeight.resize(radius); //由于高斯函数是对称，所以只要存取一半 27 | guassWeight[0]=1; //初始化第一个值 28 | float sum=guassWeight[0]; 29 | for(int i=1;irunFilter(xBlurBuffer,rect(),yBlurBuffer,rect(),[this](QOpenGLShaderProgram& program){ 104 | program.setUniformValue("horizontal",true); 105 | program.setUniformValueArray("guassWeight",guassWeight.data(),guassWeight.size(),1); 106 | program.setUniformValue("blurRadius",guassWeight.size()); 107 | }); 108 | 109 | blurFilter->runFilter(yBlurBuffer,rect(),xBlurBuffer,rect(),[](QOpenGLShaderProgram& program){ 110 | program.setUniformValue("horizontal",false); 111 | }); 112 | } 113 | 114 | 115 | // GLTool::drawTexture(xBlurBuffer->texture()); 116 | glowFilter->runFilter(rect(),[this](QOpenGLShaderProgram& program){ 117 | glActiveTexture(GL_TEXTURE1); 118 | glBindTexture(GL_TEXTURE_2D,xBlurBuffer->texture()); 119 | program.setUniformValue("blurTex",1); 120 | program.setUniformValue("exposure",10.0f); 121 | program.setUniformValue("gamma",0.9f); 122 | }); 123 | 124 | } 125 | 126 | void Widget::resizeGL(int w, int h) 127 | { 128 | 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