├── .gitignore ├── README.md ├── examples ├── example_mesh │ ├── Makefile │ ├── Project.xcconfig │ ├── addons.make │ ├── bin │ │ └── data │ │ │ └── .gitkeep │ ├── config.make │ ├── example_mesh.xcodeproj │ │ ├── project.pbxproj │ │ ├── project.xcworkspace │ │ │ └── contents.xcworkspacedata │ │ └── xcshareddata │ │ │ └── xcschemes │ │ │ ├── example_mesh Debug.xcscheme │ │ │ └── example_mesh Release.xcscheme │ ├── openFrameworks-Info.plist │ └── src │ │ ├── main.cpp │ │ ├── ofApp.cpp │ │ └── ofApp.h └── example_ofxGui │ ├── Makefile │ ├── Project.xcconfig │ ├── addons.make │ ├── bin │ └── data │ │ └── .gitkeep │ ├── config.make │ ├── example_ofxGui.xcodeproj │ ├── project.pbxproj │ ├── project.xcworkspace │ │ └── contents.xcworkspacedata │ └── xcshareddata │ │ └── xcschemes │ │ ├── example_ofxGui Debug.xcscheme │ │ └── example_ofxGui Release.xcscheme │ ├── openFrameworks-Info.plist │ └── src │ ├── PingPong.h │ ├── main.cpp │ ├── ofApp.cpp │ └── ofApp.h ├── ofxaddons_thumbnail.png ├── src ├── PingPong.h ├── ofxReactionDiffusion.cpp └── ofxReactionDiffusion.h └── thumbs ├── bz.gif ├── fhn.gif ├── gs.gif ├── header.png └── mesh.gif /.gitignore: -------------------------------------------------------------------------------- 1 | *.app 2 | xcuserdata/ 3 | 4 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 |

2 | #### ofxReactionDiffusion is openFrameworks addon for visualizing Reaction-Diffusion System using GPU. 3 | 4 | ## Installation 5 | Copy to `openFrameworks > addons`. 6 | 7 | ## Reaction Diffusion System 8 | > Reaction–diffusion systems are mathematical models which correspond to several physical phenomena: the most common is the change in space and time of the concentration of one or more chemical substances: local chemical reactions in which the substances are transformed into each other, and diffusion which causes the substances to spread out over a surface in space. 9 | > (from [Wikipedia](https://en.wikipedia.org/wiki/Reaction%E2%80%93diffusion_system)) 10 | 11 | ## Models 12 | Reaction-Diffusion System has a few mathematical models and ofxReactionDiffusion implements three models of them. 13 | 14 | ### - Gray-Scott 15 |

16 | 17 | ### - FitzHugh-Nagumo 18 |

19 | 20 | ### - Belousov-Zhabotinsky 21 |

59 | 60 | For example, reaction diffusion values can use for depth of VBOMesh. (See **Examples > example_mesh**) 61 | -------------------------------------------------------------------------------- /examples/example_mesh/Makefile: -------------------------------------------------------------------------------- 1 | # Attempt to load a config.make file. 2 | # If none is found, project defaults in config.project.make will be used. 3 | ifneq ($(wildcard config.make),) 4 | include config.make 5 | endif 6 | 7 | # make sure the the OF_ROOT location is defined 8 | ifndef OF_ROOT 9 | OF_ROOT=$(realpath ../../../..) 10 | endif 11 | 12 | # call the project makefile! 13 | include $(OF_ROOT)/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk 14 | -------------------------------------------------------------------------------- /examples/example_mesh/Project.xcconfig: -------------------------------------------------------------------------------- 1 | //THE PATH TO THE ROOT OF OUR OF PATH RELATIVE TO THIS PROJECT. 2 | //THIS NEEDS TO BE DEFINED BEFORE CoreOF.xcconfig IS INCLUDED 3 | OF_PATH = ../../../.. 4 | 5 | //THIS HAS ALL THE HEADER AND LIBS FOR OF CORE 6 | #include "../../../../libs/openFrameworksCompiled/project/osx/CoreOF.xcconfig" 7 | 8 | //ICONS - NEW IN 0072 9 | ICON_NAME_DEBUG = icon-debug.icns 10 | ICON_NAME_RELEASE = icon.icns 11 | ICON_FILE_PATH = $(OF_PATH)/libs/openFrameworksCompiled/project/osx/ 12 | 13 | //IF YOU WANT AN APP TO HAVE A CUSTOM ICON - PUT THEM IN YOUR DATA FOLDER AND CHANGE ICON_FILE_PATH to: 14 | //ICON_FILE_PATH = bin/data/ 15 | 16 | OTHER_LDFLAGS = $(OF_CORE_LIBS) $(OF_CORE_FRAMEWORKS) 17 | HEADER_SEARCH_PATHS = $(OF_CORE_HEADERS) 18 | -------------------------------------------------------------------------------- /examples/example_mesh/addons.make: -------------------------------------------------------------------------------- 1 | ofxReactionDiffusion 2 | -------------------------------------------------------------------------------- /examples/example_mesh/bin/data/.gitkeep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/examples/example_mesh/bin/data/.gitkeep -------------------------------------------------------------------------------- /examples/example_mesh/config.make: -------------------------------------------------------------------------------- 1 | ################################################################################ 2 | # CONFIGURE PROJECT MAKEFILE (optional) 3 | # This file is where we make project specific configurations. 4 | ################################################################################ 5 | 6 | ################################################################################ 7 | # OF ROOT 8 | # The location of your root openFrameworks installation 9 | # (default) OF_ROOT = ../../../.. 10 | ################################################################################ 11 | # OF_ROOT = ../../../.. 12 | 13 | ################################################################################ 14 | # PROJECT ROOT 15 | # The location of the project - a starting place for searching for files 16 | # (default) PROJECT_ROOT = . (this directory) 17 | # 18 | ################################################################################ 19 | # PROJECT_ROOT = . 20 | 21 | ################################################################################ 22 | # PROJECT SPECIFIC CHECKS 23 | # This is a project defined section to create internal makefile flags to 24 | # conditionally enable or disable the addition of various features within 25 | # this makefile. For instance, if you want to make changes based on whether 26 | # GTK is installed, one might test that here and create a variable to check. 27 | ################################################################################ 28 | # None 29 | 30 | ################################################################################ 31 | # PROJECT EXTERNAL SOURCE PATHS 32 | # These are fully qualified paths that are not within the PROJECT_ROOT folder. 33 | # Like source folders in the PROJECT_ROOT, these paths are subject to 34 | # exlclusion via the PROJECT_EXLCUSIONS list. 35 | # 36 | # (default) PROJECT_EXTERNAL_SOURCE_PATHS = (blank) 37 | # 38 | # Note: Leave a leading space when adding list items with the += operator 39 | ################################################################################ 40 | # PROJECT_EXTERNAL_SOURCE_PATHS = 41 | 42 | ################################################################################ 43 | # PROJECT EXCLUSIONS 44 | # These makefiles assume that all folders in your current project directory 45 | # and any listed in the PROJECT_EXTERNAL_SOURCH_PATHS are are valid locations 46 | # to look for source code. The any folders or files that match any of the 47 | # items in the PROJECT_EXCLUSIONS list below will be ignored. 48 | # 49 | # Each item in the PROJECT_EXCLUSIONS list will be treated as a complete 50 | # string unless teh user adds a wildcard (%) operator to match subdirectories. 51 | # GNU make only allows one wildcard for matching. The second wildcard (%) is 52 | # treated literally. 53 | # 54 | # (default) PROJECT_EXCLUSIONS = (blank) 55 | # 56 | # Will automatically exclude the following: 57 | # 58 | # $(PROJECT_ROOT)/bin% 59 | # $(PROJECT_ROOT)/obj% 60 | # $(PROJECT_ROOT)/%.xcodeproj 61 | # 62 | # Note: Leave a leading space when adding list items with the += operator 63 | ################################################################################ 64 | # PROJECT_EXCLUSIONS = 65 | 66 | ################################################################################ 67 | # PROJECT LINKER FLAGS 68 | # These flags will be sent to the linker when compiling the executable. 69 | # 70 | # (default) PROJECT_LDFLAGS = -Wl,-rpath=./libs 71 | # 72 | # Note: Leave a leading space when adding list items with the += operator 73 | ################################################################################ 74 | 75 | # Currently, shared libraries that are needed are copied to the 76 | # $(PROJECT_ROOT)/bin/libs directory. 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/examples/example_mesh/example_mesh.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /examples/example_mesh/example_mesh.xcodeproj/xcshareddata/xcschemes/example_mesh Debug.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 32 | 33 | 39 | 40 | 41 | 42 | 51 | 52 | 58 | 59 | 60 | 61 | 62 | 63 | 69 | 70 | 76 | 77 | 78 | 79 | 81 | 82 | 85 | 86 | 87 | -------------------------------------------------------------------------------- /examples/example_mesh/example_mesh.xcodeproj/xcshareddata/xcschemes/example_mesh Release.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 32 | 33 | 39 | 40 | 41 | 42 | 51 | 52 | 58 | 59 | 60 | 61 | 62 | 63 | 69 | 70 | 76 | 77 | 78 | 79 | 81 | 82 | 85 | 86 | 87 | -------------------------------------------------------------------------------- /examples/example_mesh/openFrameworks-Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | English 7 | CFBundleExecutable 8 | ${EXECUTABLE_NAME} 9 | CFBundleIdentifier 10 | cc.openFrameworks.ofapp 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundlePackageType 14 | APPL 15 | CFBundleSignature 16 | ???? 17 | CFBundleVersion 18 | 1.0 19 | CFBundleIconFile 20 | ${ICON} 21 | 22 | 23 | -------------------------------------------------------------------------------- /examples/example_mesh/src/main.cpp: -------------------------------------------------------------------------------- 1 | #include "ofMain.h" 2 | #include "ofApp.h" 3 | 4 | //======================================================================== 5 | int main( ){ 6 | ofSetupOpenGL(1024,768,OF_WINDOW); // <-------- setup the GL context 7 | 8 | // this kicks off the running of my app 9 | // can be OF_WINDOW or OF_FULLSCREEN 10 | // pass in width and height too: 11 | ofRunApp(new ofApp()); 12 | 13 | } 14 | -------------------------------------------------------------------------------- /examples/example_mesh/src/ofApp.cpp: -------------------------------------------------------------------------------- 1 | #include "ofApp.h" 2 | 3 | //-------------------------------------------------------------- 4 | void ofApp::setup(){ 5 | ofBackground(0); 6 | ofSetVerticalSync(true); 7 | ofEnableDepthTest(); 8 | 9 | /* 10 | ofEasyCam 11 | */ 12 | cam.setupPerspective(true, 60, 10, 0, ofVec2f(0.0, 0.0)); 13 | cam.setDistance(250); 14 | 15 | /* 16 | ofxReactionDiffusion 17 | */ 18 | scale = 3.0; 19 | 20 | rd.allocate(ofGetWidth(), ofGetHeight(), scale); 21 | rd.setPasses(0.998265); 22 | rd.setGrayScottParams(0.0239133, 0.0501276, 0.178571, 0.212041); 23 | 24 | /// add Initial Sources 25 | rd.getSourceFbo().begin(); 26 | ofSetColor(0, 0, 200); 27 | ofDrawRectangle(100, 100, 100, 100); 28 | rd.getSourceFbo().end(); 29 | 30 | /* 31 | Mesh 32 | */ 33 | mesh.setMode(OF_PRIMITIVE_POINTS); 34 | 35 | for (int y = 0; y < ofGetHeight()/scale; y++) { 36 | for (int x = 0; x < ofGetWidth()/scale; x++) { 37 | mesh.addVertex(ofVec3f(0, 0, 0)); 38 | mesh.addTexCoord(ofVec2f(y, x)); 39 | mesh.addColor(ofFloatColor(1.0)); 40 | } 41 | } 42 | 43 | /// Shader 44 | string updatePosVert = STRINGIFY( 45 | uniform sampler2DRect sourceTex; 46 | uniform sampler2DRect colorTex; 47 | 48 | void main() { 49 | vec2 st = gl_MultiTexCoord0.st; 50 | 51 | vec3 pos = vec3(st.x, st.y, texture2DRect(sourceTex, st).b * 50.0); 52 | vec3 color = texture2DRect(colorTex, st).rgb; 53 | 54 | gl_FrontColor = vec4(color, 1.0); 55 | gl_PointSize = 1.0; 56 | gl_Position = gl_ModelViewProjectionMatrix * vec4(pos, 1.0); 57 | } 58 | ); 59 | updatePosShader.setupShaderFromSource(GL_VERTEX_SHADER, updatePosVert); 60 | updatePosShader.linkProgram(); 61 | 62 | } 63 | 64 | //-------------------------------------------------------------- 65 | void ofApp::update(){ 66 | rd.update(); 67 | } 68 | 69 | //-------------------------------------------------------------- 70 | void ofApp::draw(){ 71 | ofSetWindowTitle(ofToString(ofGetFrameRate())); 72 | 73 | cam.begin(); 74 | ofPushStyle(); 75 | 76 | ofTranslate(160, -80); 77 | ofRotateX(60); 78 | ofRotateZ(90); 79 | 80 | updatePosShader.begin(); 81 | updatePosShader.setUniformTexture("sourceTex", rd.getSourceTexture(), 0); 82 | updatePosShader.setUniformTexture("colorTex", rd.getColorTexture(), 1); 83 | mesh.draw(); 84 | updatePosShader.end(); 85 | 86 | ofPopStyle(); 87 | cam.end(); 88 | } 89 | 90 | //-------------------------------------------------------------- 91 | void ofApp::keyPressed(int key){ 92 | 93 | } 94 | 95 | //-------------------------------------------------------------- 96 | void ofApp::keyReleased(int key){ 97 | 98 | } 99 | 100 | //-------------------------------------------------------------- 101 | void ofApp::mouseMoved(int x, int y ){ 102 | 103 | } 104 | 105 | //-------------------------------------------------------------- 106 | void ofApp::mouseDragged(int x, int y, int button){ 107 | 108 | } 109 | 110 | //-------------------------------------------------------------- 111 | void ofApp::mousePressed(int x, int y, int button){ 112 | 113 | } 114 | 115 | //-------------------------------------------------------------- 116 | void ofApp::mouseReleased(int x, int y, int button){ 117 | 118 | } 119 | 120 | //-------------------------------------------------------------- 121 | void ofApp::mouseEntered(int x, int y){ 122 | 123 | } 124 | 125 | //-------------------------------------------------------------- 126 | void ofApp::mouseExited(int x, int y){ 127 | 128 | } 129 | 130 | //-------------------------------------------------------------- 131 | void ofApp::windowResized(int w, int h){ 132 | 133 | } 134 | 135 | //-------------------------------------------------------------- 136 | void ofApp::gotMessage(ofMessage msg){ 137 | 138 | } 139 | 140 | //-------------------------------------------------------------- 141 | void ofApp::dragEvent(ofDragInfo dragInfo){ 142 | 143 | } 144 | -------------------------------------------------------------------------------- /examples/example_mesh/src/ofApp.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | 3 | #include "ofMain.h" 4 | #include "ofxReactionDiffusion.h" 5 | 6 | class ofApp : public ofBaseApp{ 7 | 8 | public: 9 | void setup(); 10 | void update(); 11 | void draw(); 12 | 13 | void keyPressed(int key); 14 | void keyReleased(int key); 15 | void mouseMoved(int x, int y ); 16 | void mouseDragged(int x, int y, int button); 17 | void mousePressed(int x, int y, int button); 18 | void mouseReleased(int x, int y, int button); 19 | void mouseEntered(int x, int y); 20 | void mouseExited(int x, int y); 21 | void windowResized(int w, int h); 22 | void dragEvent(ofDragInfo dragInfo); 23 | void gotMessage(ofMessage msg); 24 | 25 | float scale; 26 | 27 | ofxReactionDiffusion rd; 28 | ofVboMesh mesh; 29 | ofEasyCam cam; 30 | 31 | ofShader updatePosShader; 32 | }; 33 | -------------------------------------------------------------------------------- /examples/example_ofxGui/Makefile: -------------------------------------------------------------------------------- 1 | # Attempt to load a config.make file. 2 | # If none is found, project defaults in config.project.make will be used. 3 | ifneq ($(wildcard config.make),) 4 | include config.make 5 | endif 6 | 7 | # make sure the the OF_ROOT location is defined 8 | ifndef OF_ROOT 9 | OF_ROOT=$(realpath ../../../..) 10 | endif 11 | 12 | # call the project makefile! 13 | include $(OF_ROOT)/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk 14 | -------------------------------------------------------------------------------- /examples/example_ofxGui/Project.xcconfig: -------------------------------------------------------------------------------- 1 | //THE PATH TO THE ROOT OF OUR OF PATH RELATIVE TO THIS PROJECT. 2 | //THIS NEEDS TO BE DEFINED BEFORE CoreOF.xcconfig IS INCLUDED 3 | OF_PATH = ../../../.. 4 | 5 | //THIS HAS ALL THE HEADER AND LIBS FOR OF CORE 6 | #include "../../../../libs/openFrameworksCompiled/project/osx/CoreOF.xcconfig" 7 | 8 | //ICONS - NEW IN 0072 9 | ICON_NAME_DEBUG = icon-debug.icns 10 | ICON_NAME_RELEASE = icon.icns 11 | ICON_FILE_PATH = $(OF_PATH)/libs/openFrameworksCompiled/project/osx/ 12 | 13 | //IF YOU WANT AN APP TO HAVE A CUSTOM ICON - PUT THEM IN YOUR DATA FOLDER AND CHANGE ICON_FILE_PATH to: 14 | //ICON_FILE_PATH = bin/data/ 15 | 16 | OTHER_LDFLAGS = $(OF_CORE_LIBS) $(OF_CORE_FRAMEWORKS) 17 | HEADER_SEARCH_PATHS = $(OF_CORE_HEADERS) 18 | -------------------------------------------------------------------------------- /examples/example_ofxGui/addons.make: -------------------------------------------------------------------------------- 1 | ofxGui 2 | ofxReactionDiffusion 3 | -------------------------------------------------------------------------------- /examples/example_ofxGui/bin/data/.gitkeep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/examples/example_ofxGui/bin/data/.gitkeep -------------------------------------------------------------------------------- /examples/example_ofxGui/config.make: -------------------------------------------------------------------------------- 1 | ################################################################################ 2 | # CONFIGURE PROJECT MAKEFILE (optional) 3 | # This file is where we make project specific configurations. 4 | ################################################################################ 5 | 6 | ################################################################################ 7 | # OF ROOT 8 | # The location of your root openFrameworks installation 9 | # (default) OF_ROOT = ../../../.. 10 | ################################################################################ 11 | # OF_ROOT = ../../../.. 12 | 13 | ################################################################################ 14 | # PROJECT ROOT 15 | # The location of the project - a starting place for searching for files 16 | # (default) PROJECT_ROOT = . (this directory) 17 | # 18 | ################################################################################ 19 | # PROJECT_ROOT = . 20 | 21 | ################################################################################ 22 | # PROJECT SPECIFIC CHECKS 23 | # This is a project defined section to create internal makefile flags to 24 | # conditionally enable or disable the addition of various features within 25 | # this makefile. For instance, if you want to make changes based on whether 26 | # GTK is installed, one might test that here and create a variable to check. 27 | ################################################################################ 28 | # None 29 | 30 | ################################################################################ 31 | # PROJECT EXTERNAL SOURCE PATHS 32 | # These are fully qualified paths that are not within the PROJECT_ROOT folder. 33 | # Like source folders in the PROJECT_ROOT, these paths are subject to 34 | # exlclusion via the PROJECT_EXLCUSIONS list. 35 | # 36 | # (default) PROJECT_EXTERNAL_SOURCE_PATHS = (blank) 37 | # 38 | # Note: Leave a leading space when adding list items with the += operator 39 | ################################################################################ 40 | # PROJECT_EXTERNAL_SOURCE_PATHS = 41 | 42 | ################################################################################ 43 | # PROJECT EXCLUSIONS 44 | # These makefiles assume that all folders in your current project directory 45 | # and any listed in the PROJECT_EXTERNAL_SOURCH_PATHS are are valid locations 46 | # to look for source code. The any folders or files that match any of the 47 | # items in the PROJECT_EXCLUSIONS list below will be ignored. 48 | # 49 | # Each item in the PROJECT_EXCLUSIONS list will be treated as a complete 50 | # string unless teh user adds a wildcard (%) operator to match subdirectories. 51 | # GNU make only allows one wildcard for matching. The second wildcard (%) is 52 | # treated literally. 53 | # 54 | # (default) PROJECT_EXCLUSIONS = (blank) 55 | # 56 | # Will automatically exclude the following: 57 | # 58 | # $(PROJECT_ROOT)/bin% 59 | # $(PROJECT_ROOT)/obj% 60 | # $(PROJECT_ROOT)/%.xcodeproj 61 | # 62 | # Note: Leave a leading space when adding list items with the += operator 63 | ################################################################################ 64 | # PROJECT_EXCLUSIONS = 65 | 66 | ################################################################################ 67 | # PROJECT LINKER FLAGS 68 | # These flags will be sent to the linker when compiling the executable. 69 | # 70 | # (default) PROJECT_LDFLAGS = -Wl,-rpath=./libs 71 | # 72 | # Note: Leave a leading space when adding list items with the += operator 73 | ################################################################################ 74 | 75 | # Currently, shared libraries that are needed are copied to the 76 | # $(PROJECT_ROOT)/bin/libs directory. 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9 | fboSettings.width = _width; 10 | fboSettings.height = _height; 11 | fboSettings.numColorbuffers = _numColorBuffers; 12 | fboSettings.useDepth = false; 13 | fboSettings.internalformat = _internalformat; // Gotta store the data as floats, they won't be clamped to 0..1 14 | fboSettings.wrapModeHorizontal = GL_CLAMP_TO_EDGE; 15 | fboSettings.wrapModeVertical = GL_CLAMP_TO_EDGE; 16 | fboSettings.minFilter = GL_NEAREST; // No interpolation, that would mess up data reads later! 17 | fboSettings.maxFilter = GL_NEAREST; 18 | for(int i = 0; i < 2; i++){ 19 | FBOs[i].allocate(fboSettings); 20 | } 21 | 22 | // Clean 23 | clear(); 24 | 25 | // Set everything to 0 26 | flag = 0; 27 | swap(); 28 | flag = 0; 29 | } 30 | 31 | void swap(){ 32 | src = &(FBOs[(flag)%2]); 33 | dst = &(FBOs[++(flag)%2]); 34 | } 35 | 36 | void clear(){ 37 | for(int i = 0; i < 2; i++){ 38 | FBOs[i].begin(); 39 | ofClear(0,255); 40 | FBOs[i].end(); 41 | } 42 | } 43 | 44 | ofFbo& operator[]( int n ){ return FBOs[n];} 45 | 46 | ofFbo *src; // Source -> Ping 47 | ofFbo *dst; // Destination -> Pong 48 | private: 49 | ofFbo FBOs[2]; // Real addresses of ping/pong FBO´s 50 | int flag; // Integer for making a quick swap 51 | }; 52 | 53 | #endif -------------------------------------------------------------------------------- /examples/example_ofxGui/src/main.cpp: -------------------------------------------------------------------------------- 1 | #include "ofMain.h" 2 | #include "ofApp.h" 3 | 4 | //======================================================================== 5 | int main( ){ 6 | ofSetupOpenGL(1024,768,OF_WINDOW); // <-------- setup the GL context 7 | 8 | // this kicks off the running of my app 9 | // can be OF_WINDOW or OF_FULLSCREEN 10 | // pass in width and height too: 11 | ofRunApp(new ofApp()); 12 | 13 | } 14 | -------------------------------------------------------------------------------- /examples/example_ofxGui/src/ofApp.cpp: -------------------------------------------------------------------------------- 1 | #include "ofApp.h" 2 | 3 | //-------------------------------------------------------------- 4 | void ofApp::setup(){ 5 | ofSetBackgroundColor(0); 6 | ofSetFrameRate(60); 7 | 8 | rd.allocate(ofGetWidth(), ofGetHeight()); 9 | 10 | gui.setup(); 11 | gui.setName("Parameters"); 12 | gui.add(mode.setup("Mode", 0, 0, 2)); 13 | gui.add(passes.setup("Passes", rd.getPasses(), 0.01, 2)); 14 | gui.add(clearButton.setup("Clear")); 15 | clearButton.addListener(this, &ofApp::clear); 16 | 17 | gui.add(gs.setup()); 18 | gs.setName("Gray Scott"); 19 | gs.add(feed.setup("Feed", rd.getFeed(), 0, 0.5)); 20 | gs.add(kill.setup("Kill", rd.getKill(), 0, 0.5)); 21 | gs.add(Du.setup("Du", rd.getDu(), 0, 0.5)); 22 | gs.add(Dv.setup("Dv", rd.getDv(), 0, 0.5)); 23 | 24 | gui.add(fhn.setup()); 25 | fhn.setName("Fitz-Hugh Nagumo"); 26 | fhn.add(a0.setup("a0", rd.getA0(), 0, 1.0)); 27 | fhn.add(a1.setup("a1", rd.getA1(), 0, 1.0)); 28 | fhn.add(epsilon.setup("Epsilon", rd.getEpsilon(), 0, 1.5)); 29 | fhn.add(delta.setup("Delta", rd.getDelta(), 0, 1.0)); 30 | fhn.add(k1.setup("K1", rd.getK1(), 0.001, 3.0)); 31 | fhn.add(k2.setup("K2", rd.getK2(), 0.001, 3.0)); 32 | fhn.add(k3.setup("K3", rd.getK3(), 0.001, 3.0)); 33 | 34 | gui.add(bz.setup()); 35 | bz.setName("Belousov Zhabotinsky"); 36 | bz.add(alpha.setup("Alpha", rd.getAlpha(), -5.0, 5.0)); 37 | bz.add(beta.setup("Beta", rd.getBeta(), -5.0, 5.0)); 38 | bz.add(gamma.setup("Gamma", rd.getGamma(), -5.0, 5.0)); 39 | 40 | colors.setup(); 41 | colors.setPosition(ofGetWidth() - colors.getWidth(), 0); 42 | colors.setName("Colors"); 43 | colors.add(color1.setup("Color 1", 0.0 , 0, 1.0)); 44 | colors.add(thresh1.setup("Thresh 1", 0.0 , 0, 1.0)); 45 | colors.add(color2.setup("Color 2", 0.25, 0, 1.0)); 46 | colors.add(thresh2.setup("Thresh 2", 0.2 , 0, 1.0)); 47 | colors.add(color3.setup("Color 3", 0.5 , 0, 1.0)); 48 | colors.add(thresh3.setup("Thresh 3", 0.4 , 0, 1.0)); 49 | colors.add(color4.setup("Color 4", 0.75, 0, 1.0)); 50 | colors.add(thresh4.setup("Thresh 4", 0.6 , 0, 1.0)); 51 | colors.add(color5.setup("Color 5", 1.0 , 0, 1.0)); 52 | colors.add(thresh5.setup("Thresh 5", 0.8 , 0, 1.0)); 53 | 54 | color1 = rd.getColor1(); 55 | color2 = rd.getColor2(); 56 | color3 = rd.getColor3(); 57 | color4 = rd.getColor4(); 58 | color5 = rd.getColor5(); 59 | } 60 | 61 | void ofApp::clear() { 62 | rd.clearAll(); 63 | } 64 | 65 | //-------------------------------------------------------------- 66 | void ofApp::update(){ 67 | rd.setPasses(passes); 68 | 69 | switch (mode) { 70 | case 0: 71 | rd.setMode(RD_MODE_GRAY_SCOTT); 72 | rd.setGrayScottParams(feed, kill, Du, Dv); 73 | break; 74 | case 1: 75 | rd.setMode(RD_MODE_FITZHUGH_NAGUMO); 76 | rd.setFhnParams(a0, a1, epsilon, delta, k1, k2, k3); 77 | break; 78 | case 2: 79 | rd.setMode(RD_MODE_BELOUSOV_ZHABOTINSKY); 80 | rd.setBzParams(alpha, beta, gamma); 81 | break; 82 | default: 83 | break; 84 | } 85 | 86 | rd.setColor1(color1); 87 | rd.setColor1Threshold(thresh1); 88 | rd.setColor2(color2); 89 | rd.setColor2Threshold(thresh2); 90 | rd.setColor3(color3); 91 | rd.setColor3Threshold(thresh3); 92 | rd.setColor4(color4); 93 | rd.setColor4Threshold(thresh4); 94 | rd.setColor5(color5); 95 | rd.setColor5Threshold(thresh5); 96 | 97 | rd.update(); 98 | } 99 | 100 | //-------------------------------------------------------------- 101 | void ofApp::draw(){ 102 | rd.draw(); 103 | 104 | gui.draw(); 105 | 106 | colors.draw(); 107 | } 108 | 109 | //-------------------------------------------------------------- 110 | void ofApp::keyPressed(int key){ 111 | 112 | } 113 | 114 | //-------------------------------------------------------------- 115 | void ofApp::keyReleased(int key){ 116 | 117 | } 118 | 119 | //-------------------------------------------------------------- 120 | void ofApp::mouseMoved(int x, int y ){ 121 | 122 | } 123 | 124 | //-------------------------------------------------------------- 125 | void ofApp::mouseDragged(int x, int y, int button){ 126 | if (button == 0) { 127 | rd.addSource(x, y, 5); 128 | } else if (button == 2) { 129 | rd.addObstacle(x, y, 5); 130 | } 131 | } 132 | 133 | //-------------------------------------------------------------- 134 | void ofApp::mousePressed(int x, int y, int button){ 135 | 136 | } 137 | 138 | //-------------------------------------------------------------- 139 | void ofApp::mouseReleased(int x, int y, int button){ 140 | 141 | } 142 | 143 | //-------------------------------------------------------------- 144 | void ofApp::mouseEntered(int x, int y){ 145 | 146 | } 147 | 148 | //-------------------------------------------------------------- 149 | void ofApp::mouseExited(int x, int y){ 150 | 151 | } 152 | 153 | //-------------------------------------------------------------- 154 | void ofApp::windowResized(int w, int h){ 155 | 156 | } 157 | 158 | //-------------------------------------------------------------- 159 | void ofApp::gotMessage(ofMessage msg){ 160 | 161 | } 162 | 163 | //-------------------------------------------------------------- 164 | void ofApp::dragEvent(ofDragInfo dragInfo){ 165 | 166 | } 167 | -------------------------------------------------------------------------------- /examples/example_ofxGui/src/ofApp.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | 3 | #include "ofMain.h" 4 | #include "ofxGui.h" 5 | #include "ofxReactionDiffusion.h" 6 | 7 | class ofApp : public ofBaseApp{ 8 | 9 | public: 10 | void setup(); 11 | void update(); 12 | void draw(); 13 | 14 | void keyPressed(int key); 15 | void keyReleased(int key); 16 | void mouseMoved(int x, int y ); 17 | void mouseDragged(int x, int y, int button); 18 | void mousePressed(int x, int y, int button); 19 | void mouseReleased(int x, int y, int button); 20 | void mouseEntered(int x, int y); 21 | void mouseExited(int x, int y); 22 | void windowResized(int w, int h); 23 | void dragEvent(ofDragInfo dragInfo); 24 | void gotMessage(ofMessage msg); 25 | 26 | void clear(); 27 | 28 | ofxReactionDiffusion rd; 29 | 30 | 31 | ofxPanel gui; 32 | ofxIntSlider mode; 33 | ofxFloatSlider passes; 34 | ofxButton clearButton; 35 | 36 | ofxGuiGroup gs; 37 | ofxFloatSlider feed, kill, Du, Dv; 38 | 39 | ofxGuiGroup fhn; 40 | ofxFloatSlider a0, a1, epsilon, delta, k1, k2, k3; 41 | 42 | ofxGuiGroup bz; 43 | ofxFloatSlider alpha, beta, gamma; 44 | 45 | ofxGuiGroup worm; 46 | ofxFloatSlider constA, constB; 47 | 48 | ofxPanel colors; 49 | ofxFloatColorSlider color1, color2, color3, color4, color5; 50 | ofxFloatSlider thresh1, thresh2, thresh3, thresh4, thresh5; 51 | }; 52 | -------------------------------------------------------------------------------- /ofxaddons_thumbnail.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/ofxaddons_thumbnail.png -------------------------------------------------------------------------------- /src/PingPong.h: -------------------------------------------------------------------------------- 1 | #ifndef PingPong_h 2 | #define PingPong_h 3 | 4 | struct PingPong { 5 | public: 6 | void allocate( int _width, int _height, int _internalformat = GL_RGBA, int _numColorBuffers = 1){ 7 | // Allocate 8 | ofFbo::Settings fboSettings; 9 | fboSettings.width = _width; 10 | fboSettings.height = _height; 11 | fboSettings.numColorbuffers = _numColorBuffers; 12 | fboSettings.useDepth = false; 13 | fboSettings.internalformat = _internalformat; // Gotta store the data as floats, they won't be clamped to 0..1 14 | fboSettings.wrapModeHorizontal = GL_CLAMP_TO_EDGE; 15 | fboSettings.wrapModeVertical = GL_CLAMP_TO_EDGE; 16 | fboSettings.minFilter = GL_NEAREST; // No interpolation, that would mess up data reads later! 17 | fboSettings.maxFilter = GL_NEAREST; 18 | for(int i = 0; i < 2; i++){ 19 | FBOs[i].allocate(fboSettings); 20 | } 21 | 22 | // Clean 23 | clear(); 24 | 25 | // Set everything to 0 26 | flag = 0; 27 | swap(); 28 | flag = 0; 29 | } 30 | 31 | void swap(){ 32 | src = &(FBOs[(flag)%2]); 33 | dst = &(FBOs[++(flag)%2]); 34 | } 35 | 36 | void clear(){ 37 | for(int i = 0; i < 2; i++){ 38 | FBOs[i].begin(); 39 | ofClear(0,255); 40 | FBOs[i].end(); 41 | } 42 | } 43 | 44 | ofFbo& operator[]( int n ){ return FBOs[n];} 45 | 46 | ofFbo *src; // Source -> Ping 47 | ofFbo *dst; // Destination -> Pong 48 | private: 49 | ofFbo FBOs[2]; // Real addresses of ping/pong FBO´s 50 | int flag; // Integer for making a quick swap 51 | }; 52 | 53 | #endif -------------------------------------------------------------------------------- /src/ofxReactionDiffusion.cpp: -------------------------------------------------------------------------------- 1 | // 2 | // ofxReactionDiffusion.cpp 3 | // 4 | // Created by Yuma Matsune on 2016/10/25. 5 | // 6 | // 7 | 8 | #include "ofxReactionDiffusion.h" 9 | 10 | ofxReactionDiffusion::ofxReactionDiffusion() { 11 | mode = RD_MODE_GRAY_SCOTT; 12 | 13 | passes = 1.0; 14 | 15 | feed = 0.037; 16 | kill = 0.06; 17 | Du = 0.21; 18 | Dv = 0.105; 19 | 20 | a0 = 0.459184; 21 | a1 = 0.780612; 22 | epsilon = 0.642857; 23 | delta = 3.0; 24 | k1 = 1.63776; 25 | k2 = 0.336735; 26 | k3 = 2.29592; 27 | 28 | alpha = 1.0; 29 | beta = 1.0; 30 | gamma = 1.0; 31 | 32 | color1.set( 0.0, 0.0, 0.0, 0.0); 33 | color2.set( 0.0, 0.403, 0.6836, 0.2); 34 | color3.set(0.7857, 0.0816, 0.7347, 0.4); 35 | color4.set( 1.0, 0.1632, 0.4948, 0.6); 36 | color5.set( 0.02, 0.78, 0.918, 0.8); 37 | 38 | string grayScott = STRINGIFY( 39 | float kernel[9]; 40 | vec2 offset[9]; 41 | 42 | uniform float passes; 43 | uniform float feed; 44 | uniform float kill; 45 | uniform float Du; 46 | uniform float Dv; 47 | uniform sampler2DRect tex0; 48 | 49 | void main(){ 50 | vec2 st = gl_TexCoord[0].st; 51 | 52 | offset[0] = vec2( 0.0, -1.0); 53 | offset[1] = vec2(-1.0, 0.0); 54 | offset[2] = vec2( 0.0, 0.0); 55 | offset[3] = vec2( 1.0, 0.0); 56 | offset[4] = vec2( 0.0, 1.0); 57 | 58 | offset[5] = vec2(-1.0, -1.0); 59 | offset[6] = vec2( 1.0, -1.0); 60 | offset[7] = vec2(-1.0, 1.0); 61 | offset[8] = vec2( 1.0, 1.0); 62 | 63 | kernel[0] = 1.0; 64 | kernel[1] = 1.0; 65 | kernel[2] = -6.82842712; 66 | kernel[3] = 1.0; 67 | kernel[4] = 1.0; 68 | 69 | kernel[5] = 0.707106781; 70 | kernel[6] = 0.707106781; 71 | kernel[7] = 0.707106781; 72 | kernel[8] = 0.707106781; 73 | 74 | vec2 lap = vec2(0.0, 0.0); 75 | for(int i=0; i<9; i++){ 76 | vec2 tmp = texture2DRect(tex0, st + offset[i]).rb; 77 | lap += tmp * kernel[i]; 78 | } 79 | 80 | vec2 uv = texture2DRect(tex0, st).rb; 81 | float du = Du*lap.r - uv.r*uv.g*uv.g + feed*(1.0 - uv.r); 82 | float dv = Dv*lap.g + uv.r*uv.g*uv.g - (feed+kill)*uv.g; 83 | vec2 dst = uv + passes*vec2(du, dv); 84 | 85 | gl_FragColor = vec4(dst.r, 0.0, dst.g, 1.0);; 86 | } 87 | ); 88 | gsShader.unload(); 89 | gsShader.setupShaderFromSource(GL_FRAGMENT_SHADER, grayScott); 90 | gsShader.linkProgram(); 91 | 92 | string fitzHughNagumo = STRINGIFY( 93 | float kernel[9]; 94 | vec2 offset[9]; 95 | 96 | uniform float passes; 97 | uniform float a0; 98 | uniform float a1; 99 | uniform float epsilon; 100 | uniform float delta; 101 | uniform float k1; 102 | uniform float k2; 103 | uniform float k3; 104 | uniform sampler2DRect tex0; 105 | 106 | void main(){ 107 | vec2 st = gl_TexCoord[0].st; 108 | 109 | offset[0] = vec2( 0.0, -1.0); 110 | offset[1] = vec2(-1.0, 0.0); 111 | offset[2] = vec2( 0.0, 0.0); 112 | offset[3] = vec2( 1.0, 0.0); 113 | offset[4] = vec2( 0.0, 1.0); 114 | 115 | offset[5] = vec2(-1.0, -1.0); 116 | offset[6] = vec2( 1.0, -1.0); 117 | offset[7] = vec2(-1.0, 1.0); 118 | offset[8] = vec2( 1.0, 1.0); 119 | 120 | kernel[0] = 1.0; 121 | kernel[1] = 1.0; 122 | kernel[2] = -6.82842712; 123 | kernel[3] = 1.0; 124 | kernel[4] = 1.0; 125 | 126 | kernel[5] = 0.707106781; 127 | kernel[6] = 0.707106781; 128 | kernel[7] = 0.707106781; 129 | kernel[8] = 0.707106781; 130 | 131 | vec2 lap = vec2(0.0, 0.0); 132 | for(int i=0; i<9; i++){ 133 | vec2 tmp = texture2DRect(tex0, st + offset[i]).rb; 134 | lap += tmp * kernel[i]; 135 | } 136 | 137 | float u = texture2DRect(tex0, st).r; 138 | float v = texture2DRect(tex0, st).b; 139 | 140 | float du = (k1 * u) - (k2 * pow(u, 2.0)) - pow(u, 3.0) - v + lap.x; 141 | float dv = epsilon * (k3 * u - a1 * v - a0) + delta * lap.y; 142 | u += du * passes * 0.1; 143 | v += dv * passes * 0.1; 144 | gl_FragColor = vec4(clamp(u, 0.0, 1.0), 0, clamp(v, 0.0, 1.0), 1.0); 145 | } 146 | ); 147 | fhnShader.unload(); 148 | fhnShader.setupShaderFromSource(GL_FRAGMENT_SHADER, fitzHughNagumo); 149 | fhnShader.linkProgram(); 150 | 151 | string belousovZhabotinsky = STRINGIFY( 152 | vec2 offset[9]; 153 | 154 | uniform float passes; 155 | uniform float alpha; 156 | uniform float beta; 157 | uniform float gamma; 158 | uniform sampler2DRect tex0; 159 | 160 | void main(){ 161 | vec2 st = gl_TexCoord[0].st; 162 | 163 | offset[0] = vec2( 0.0, -1.0); 164 | offset[1] = vec2(-1.0, 0.0); 165 | offset[2] = vec2( 0.0, 0.0); 166 | offset[3] = vec2( 1.0, 0.0); 167 | offset[4] = vec2( 0.0, 1.0); 168 | 169 | offset[5] = vec2(-1.0, -1.0); 170 | offset[6] = vec2( 1.0, -1.0); 171 | offset[7] = vec2(-1.0, 1.0); 172 | offset[8] = vec2( 1.0, 1.0); 173 | 174 | vec3 source = vec3(0); 175 | for(int i=0; i<9; i++){ 176 | source += texture2DRect(tex0, st + offset[i]).rgb; 177 | } 178 | source /= 9.0; 179 | 180 | float a = source.r + source.r * ((alpha * (source.g * gamma)) - source.b) * passes; 181 | float b = source.g + source.g * ((beta * source.b) - (alpha * source.r)) * passes; 182 | float c = source.b + source.b * ((gamma * source.r) - (beta * source.g)) * passes; 183 | 184 | source.r = a; 185 | source.g = b; 186 | source.b = c; 187 | 188 | gl_FragColor = vec4(source, 1.0); 189 | } 190 | ); 191 | bzShader.unload(); 192 | bzShader.setupShaderFromSource(GL_FRAGMENT_SHADER, belousovZhabotinsky); 193 | bzShader.linkProgram(); 194 | 195 | string coloringFragment = STRINGIFY( 196 | uniform vec4 color1; 197 | uniform vec4 color2; 198 | uniform vec4 color3; 199 | uniform vec4 color4; 200 | uniform vec4 color5; 201 | uniform sampler2DRect tex0; 202 | 203 | void main(){ 204 | vec2 st = gl_TexCoord[0].st; 205 | 206 | float value = texture2DRect(tex0, st).b; 207 | float a; 208 | vec3 col; 209 | 210 | if(value <= color1.a) 211 | col = color1.rgb; 212 | 213 | if(value > color1.a && value <= color2.a) { 214 | a = (value-color1.a)/(color2.a-color1.a); 215 | col = mix(color1.rgb, color2.rgb, a); 216 | } 217 | 218 | if(value > color2.a && value <= color3.a) { 219 | a = (value-color2.a)/(color3.a-color2.a); 220 | col = mix(color2.rgb, color3.rgb, a); 221 | } 222 | 223 | if(value > color3.a && value <= color4.a) { 224 | a = (value-color3.a)/(color4.a-color3.a); 225 | col = mix(color3.rgb, color4.rgb, a); 226 | } 227 | 228 | if(value > color4.a && value <= color5.a) { 229 | a = (value - color4.a)/(color5.a - color4.a); 230 | col = mix(color4.rgb, color5.rgb, a); 231 | } 232 | 233 | if(value > color5.a) 234 | col = color5.rgb; 235 | 236 | gl_FragColor = vec4(col,1.0); 237 | } 238 | ); 239 | coloringShader.unload(); 240 | coloringShader.setupShaderFromSource(GL_FRAGMENT_SHADER, coloringFragment); 241 | coloringShader.linkProgram(); 242 | } 243 | 244 | void ofxReactionDiffusion::allocate(int _width, int _height, float _scale) { 245 | width = _width; 246 | height = _height; 247 | scale = _scale; 248 | 249 | srcPingPong.allocate(_width, _height); 250 | obstaclePingPong.allocate(_width, _height); 251 | renderPingPong.allocate(_width, _height); 252 | 253 | clearAll(); 254 | } 255 | 256 | 257 | void ofxReactionDiffusion::update() { 258 | srcPingPong.dst->begin(); 259 | srcPingPong.src->draw(0, 0); 260 | obstaclePingPong.src->draw(0, 0); 261 | srcPingPong.dst->end(); 262 | 263 | srcPingPong.swap(); 264 | 265 | 266 | srcPingPong.dst->begin(); 267 | switch (mode) { 268 | case RD_MODE_GRAY_SCOTT: 269 | gsShader.begin(); 270 | gsShader.setUniform1f("screenWidth", ofGetWidth()); 271 | gsShader.setUniform1f("screenHeight", ofGetHeight()); 272 | gsShader.setUniform1f("passes", passes); 273 | gsShader.setUniform1f("feed", feed); 274 | gsShader.setUniform1f("kill", kill); 275 | gsShader.setUniform1f("Du", Du); 276 | gsShader.setUniform1f("Dv", Dv); 277 | srcPingPong.src->draw(0, 0); 278 | gsShader.end(); 279 | break; 280 | case RD_MODE_FITZHUGH_NAGUMO: 281 | fhnShader.begin(); 282 | fhnShader.setUniform1f("passes", passes); 283 | fhnShader.setUniform1f("a0", a0); 284 | fhnShader.setUniform1f("a1", a1); 285 | fhnShader.setUniform1f("epsilon", epsilon); 286 | fhnShader.setUniform1f("delta", delta); 287 | fhnShader.setUniform1f("k1", k1); 288 | fhnShader.setUniform1f("k2", k2); 289 | fhnShader.setUniform1f("k3", k3); 290 | srcPingPong.src->draw(0, 0); 291 | fhnShader.end(); 292 | break; 293 | case RD_MODE_BELOUSOV_ZHABOTINSKY: 294 | bzShader.begin(); 295 | bzShader.setUniform1f("passes", passes); 296 | bzShader.setUniform1f("alpha", alpha); 297 | bzShader.setUniform1f("beta", beta); 298 | bzShader.setUniform1f("gamma", gamma); 299 | srcPingPong.src->draw(0, 0); 300 | bzShader.end(); 301 | break; 302 | default: 303 | break; 304 | } 305 | srcPingPong.dst->end(); 306 | srcPingPong.swap(); 307 | 308 | renderPingPong.dst->begin(); 309 | coloringShader.begin(); 310 | coloringShader.setUniform4f("color1", color1.r, color1.g, color1.b, color1.a); 311 | coloringShader.setUniform4f("color2", color2.r, color2.g, color2.b, color2.a); 312 | coloringShader.setUniform4f("color3", color3.r, color3.g, color3.b, color3.a); 313 | coloringShader.setUniform4f("color4", color4.r, color4.g, color4.b, color4.a); 314 | coloringShader.setUniform4f("color5", color5.r, color5.g, color5.b, color5.a); 315 | srcPingPong.src->draw(0, 0); 316 | coloringShader.end(); 317 | renderPingPong.dst->end(); 318 | 319 | renderPingPong.swap(); 320 | } 321 | 322 | void ofxReactionDiffusion::draw(int _x, int _y, float _width, float _height) { 323 | if (_width < 0) _width = width; 324 | if (_height < 0) _height = height; 325 | 326 | renderPingPong.src->draw(_x, _y, _width/scale, _height/scale); 327 | } 328 | 329 | void ofxReactionDiffusion::addSource(int _x, int _y, float _radius) { 330 | srcPingPong.src->begin(); 331 | ofSetColor(100, 100, 120); 332 | ofDrawCircle(_x * scale, _y * scale, _radius * scale); 333 | srcPingPong.src->end(); 334 | } 335 | 336 | void ofxReactionDiffusion::addObstacle(int _x, int _y, float _radius) { 337 | obstaclePingPong.src->begin(); 338 | ofSetColor(255, 0, 0); 339 | ofDrawCircle(_x * scale, _y * scale, _radius * scale); 340 | obstaclePingPong.src->end(); 341 | } 342 | 343 | void ofxReactionDiffusion::clearSources() { 344 | srcPingPong.src->begin(); 345 | ofBackground(255, 0, 0); 346 | srcPingPong.src->end(); 347 | } 348 | 349 | void ofxReactionDiffusion::clearObstacles() { 350 | obstaclePingPong.src->begin(); 351 | ofClear(255, 0, 0); 352 | obstaclePingPong.src->end(); 353 | } 354 | 355 | void ofxReactionDiffusion::clearAll() { 356 | clearSources(); 357 | clearObstacles(); 358 | } 359 | -------------------------------------------------------------------------------- /src/ofxReactionDiffusion.h: -------------------------------------------------------------------------------- 1 | // 2 | // ofReactionDiffusion.h 3 | // 4 | // Created by Yuma Matsune on 2016/10/25. 5 | // 6 | // 7 | #pragma once 8 | 9 | #include "ofMain.h" 10 | #include "PingPong.h" 11 | 12 | #define STRINGIFY(A) #A 13 | 14 | typedef enum { 15 | RD_MODE_GRAY_SCOTT, 16 | RD_MODE_FITZHUGH_NAGUMO, 17 | RD_MODE_BELOUSOV_ZHABOTINSKY 18 | } ReactionDiffusionMode; 19 | 20 | class ofxReactionDiffusion { 21 | 22 | public: 23 | ofxReactionDiffusion(); 24 | void allocate(int _width, int _height, float _scale=1.0); 25 | void update(); 26 | void draw(int _x=0, int _y=0, float _width=-1, float _height=-1); 27 | 28 | ofTexture getSourceTexture() { 29 | return srcPingPong.src->getTexture(); 30 | } 31 | 32 | ofFbo getSourceFbo() { 33 | return *srcPingPong.src; 34 | } 35 | 36 | ofTexture getObstacleTexture() { 37 | return obstaclePingPong.src->getTexture(); 38 | } 39 | 40 | ofFbo getObstacleFbo() { 41 | return *obstaclePingPong.src; 42 | } 43 | 44 | ofTexture getColorTexture() { 45 | return renderPingPong.src->getTexture(); 46 | } 47 | 48 | ofFbo getColorFbo() { 49 | return *renderPingPong.src; 50 | } 51 | 52 | 53 | void setMode(ReactionDiffusionMode _mode) { mode = _mode;} 54 | 55 | void addSource(int _x, int _y, float _radius); 56 | void addObstacle(int _x, int _y, float _radius); 57 | void clearSources(); 58 | void clearObstacles(); 59 | void clearAll(); 60 | 61 | void setColor1(ofFloatColor _color) { 62 | color1.r = _color.r; 63 | color1.g = _color.g; 64 | color1.b = _color.b; 65 | } 66 | void setColor2(ofFloatColor _color) { 67 | color2.r = _color.r; 68 | color2.g = _color.g; 69 | color2.b = _color.b; 70 | } 71 | void setColor3(ofFloatColor _color) { 72 | color3.r = _color.r; 73 | color3.g = _color.g; 74 | color3.b = _color.b; 75 | } 76 | void setColor4(ofFloatColor _color) { 77 | color4.r = _color.r; 78 | color4.g = _color.g; 79 | color4.b = _color.b; 80 | } 81 | void setColor5(ofFloatColor _color) { 82 | color5.r = _color.r; 83 | color5.g = _color.g; 84 | color5.b = _color.b; 85 | } 86 | 87 | void setColor1Threshold(float _thresh) { color1.a = _thresh; } 88 | void setColor2Threshold(float _thresh) { color2.a = _thresh; } 89 | void setColor3Threshold(float _thresh) { color3.a = _thresh; } 90 | void setColor4Threshold(float _thresh) { color4.a = _thresh; } 91 | void setColor5Threshold(float _thresh) { color5.a = _thresh; } 92 | 93 | ofFloatColor getColor1() { return color1; } 94 | ofFloatColor getColor2() { return color2; } 95 | ofFloatColor getColor3() { return color3; } 96 | ofFloatColor getColor4() { return color4; } 97 | ofFloatColor getColor5() { return color5; } 98 | 99 | /* 100 | Common Paramters 101 | */ 102 | void setPasses(float _passes) { passes = _passes; } 103 | 104 | float getPasses() { return passes; } 105 | 106 | /* 107 | Gray-Scott 108 | */ 109 | void setFeed(float _feed) { feed = _feed; } 110 | void setKill(float _kill) { kill = _kill; } 111 | void setDu(float _Du) { Du = _Du; } 112 | void setDv(float _Dv) { Dv = _Dv; } 113 | 114 | float getFeed() { return feed; } 115 | float getKill() { return kill; } 116 | float getDu() { return Du; } 117 | float getDv() { return Dv; } 118 | 119 | void setGrayScottParams(float _feed, float _kill, float _Du, float _Dv) { 120 | setFeed(_feed); 121 | setKill(_kill); 122 | setDu(_Du); 123 | setDv(_Dv); 124 | } 125 | 126 | /* 127 | FitzHugh-Nagumo 128 | */ 129 | void setA0(float _a0) { a0 = _a0; } 130 | void setA1(float _a1) { a1 = _a1; } 131 | void setEpsilon(float _epsilon) { epsilon = _epsilon; } 132 | void setDelta(float _delta) { delta = _delta; } 133 | void setK1(float _k1) { k1 = _k1; } 134 | void setK2(float _k2) { k2 = _k2; } 135 | void setK3(float _k3) { k3 = _k3; } 136 | 137 | float getA0() { return a0; } 138 | float getA1() { return a1; } 139 | float getEpsilon() { return epsilon; } 140 | float getDelta() { return delta; } 141 | float getK1() { return k1; } 142 | float getK2() { return k2; } 143 | float getK3() { return k3; } 144 | 145 | void setFhnParams(float _a0, float _a1, float _epsilon, float _delta, float _k1, float _k2, float _k3) { 146 | setA0(_a0); 147 | setA1(_a1); 148 | setEpsilon(_epsilon); 149 | setDelta(_delta); 150 | setK1(_k1); 151 | setK2(_k2); 152 | setK3(_k3); 153 | } 154 | 155 | /* 156 | Belousov-Zhabotinsky 157 | */ 158 | void setAlpha(float _alpha) { alpha = _alpha; } 159 | void setBeta(float _beta) { alpha = _beta; } 160 | void setGamma(float _gamma) { gamma = _gamma; } 161 | 162 | float getAlpha() { return alpha; } 163 | float getBeta() { return beta; } 164 | float getGamma() { return gamma; } 165 | 166 | void setBzParams(float _alpha, float _beta, float _gamma) { 167 | setAlpha(_alpha); 168 | setBeta(_beta); 169 | setGamma(_gamma); 170 | } 171 | private: 172 | int width, height; 173 | float scale; 174 | ReactionDiffusionMode mode; 175 | 176 | PingPong srcPingPong; 177 | PingPong obstaclePingPong; 178 | PingPong renderPingPong; 179 | 180 | /// Gray-Scott 181 | ofShader gsShader; 182 | /// FitzHugh-Nagumo 183 | ofShader fhnShader; 184 | /// Belousov-Zhabotinsky 185 | ofShader bzShader; 186 | 187 | ofShader coloringShader; 188 | 189 | ofFloatColor color1; 190 | ofFloatColor color2; 191 | ofFloatColor color3; 192 | ofFloatColor color4; 193 | ofFloatColor color5; 194 | 195 | /* 196 | Common Paramters 197 | */ 198 | float passes; 199 | 200 | /* 201 | Gray-Scott 202 | */ 203 | float feed; 204 | float kill; 205 | float Du; 206 | float Dv; 207 | 208 | /* 209 | FitzHugh-Nagumo 210 | */ 211 | float a0; 212 | float a1; 213 | float epsilon; 214 | float delta; 215 | float k1; 216 | float k2; 217 | float k3; 218 | 219 | /* 220 | Belousov-Zhabotinsky 221 | */ 222 | float alpha; 223 | float beta; 224 | float gamma; 225 | }; 226 | -------------------------------------------------------------------------------- /thumbs/bz.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/thumbs/bz.gif -------------------------------------------------------------------------------- /thumbs/fhn.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/thumbs/fhn.gif -------------------------------------------------------------------------------- /thumbs/gs.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/thumbs/gs.gif -------------------------------------------------------------------------------- /thumbs/header.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/thumbs/header.png -------------------------------------------------------------------------------- /thumbs/mesh.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/matsune/ofxReactionDiffusion/63907476971c55bb2ad5f15716e91e26d2ecb6bb/thumbs/mesh.gif --------------------------------------------------------------------------------