├── .gitignore ├── .idea ├── .gitignore ├── .name ├── compiler.xml ├── gradle.xml ├── jarRepositories.xml ├── misc.xml └── vcs.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── google-services.json ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── mindinventory │ │ └── arcore2drenderingapp │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── assets │ │ ├── models │ │ │ └── mind.png │ │ └── shaders │ │ │ ├── fragmentShader.frag │ │ │ └── vertexShader.vert │ ├── java │ │ └── com │ │ │ └── mindinventory │ │ │ └── arcore2drenderingapp │ │ │ ├── ShaderUtil.java │ │ │ └── TextureActivity.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ └── activity_texture.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── values-night │ │ └── themes.xml │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── themes.xml │ └── test │ └── java │ └── com │ └── mindinventory │ └── arcore2drenderingapp │ └── ExampleUnitTest.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── media └── mobile.png └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | local.properties 16 | -------------------------------------------------------------------------------- /.idea/.gitignore: -------------------------------------------------------------------------------- 1 | # Default ignored files 2 | /shelf/ 3 | /workspace.xml 4 | -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | ArCore2DRenderingApp -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 19 | 20 | -------------------------------------------------------------------------------- /.idea/jarRepositories.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 | 14 | 15 | 19 | 20 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | 13 | 14 | 15 | 17 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2021 Mindinventory 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # OpenGLES: A 2D texture rendering 2 | 3 | OpenGLES is an embedded version of the OpenGL cross-platform API which is used for the render 2D/3D texture. This sample code contains the implementation of 2D texture rendering using OpenGLES. 4 | 5 | ![image](/media/mobile.png) 6 | 7 | ### Prerequisites 8 | * The latest version of the Android Studio 9 | * A device with support of OpenGL ES 2.0 version or higher. 10 | 11 | #### For more details please refer to the [Medium article](https://medium.com/mindful-engineering/opengl-es-render-a-2d-texture-in-android-app-bd49d569f580) 12 | 13 | 14 | 15 | # LICENSE! 16 | 17 | OpenGLES: A 2D texture rendering is [MIT-licensed](/LICENSE). 18 | 19 | # Let us know! 20 | We’d be really happy if you send us links to your projects where you use our component. Just send an email to sales@mindinventory.com And do let us know if you have any questions or suggestion regarding our work. 21 | 22 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'com.android.application' 3 | id 'org.jetbrains.kotlin.android' 4 | id 'com.google.gms.google-services' 5 | } 6 | 7 | android { 8 | compileSdk 31 9 | 10 | defaultConfig { 11 | applicationId "com.mindinventory.arcore2drenderingapp" 12 | minSdk 24 13 | targetSdk 31 14 | versionCode 1 15 | versionName "1.0" 16 | 17 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 18 | } 19 | 20 | buildTypes { 21 | release { 22 | minifyEnabled false 23 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 24 | } 25 | } 26 | compileOptions { 27 | sourceCompatibility JavaVersion.VERSION_1_8 28 | targetCompatibility JavaVersion.VERSION_1_8 29 | } 30 | kotlinOptions { 31 | jvmTarget = '1.8' 32 | } 33 | } 34 | 35 | dependencies { 36 | 37 | implementation 'androidx.core:core-ktx:1.7.0' 38 | implementation 'androidx.appcompat:appcompat:1.4.1' 39 | implementation 'com.google.android.material:material:1.5.0' 40 | implementation 'androidx.constraintlayout:constraintlayout:2.1.3' 41 | testImplementation 'junit:junit:4.13.2' 42 | androidTestImplementation 'androidx.test.ext:junit:1.1.3' 43 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0' 44 | 45 | // Import the Firebase BoM 46 | implementation platform('com.google.firebase:firebase-bom:29.3.1') 47 | 48 | 49 | // Add the dependency for the Firebase SDK for Google Analytics 50 | // When using the BoM, don't specify versions in Firebase dependencies 51 | implementation 'com.google.firebase:firebase-analytics-ktx' 52 | 53 | 54 | // Add the dependencies for any other desired Firebase products 55 | // https://firebase.google.com/docs/android/setup#available-libraries 56 | } -------------------------------------------------------------------------------- /app/google-services.json: -------------------------------------------------------------------------------- 1 | { 2 | "project_info": { 3 | "project_number": "901715910992", 4 | "project_id": "twodtexture", 5 | "storage_bucket": "twodtexture.appspot.com" 6 | }, 7 | "client": [ 8 | { 9 | "client_info": { 10 | "mobilesdk_app_id": "1:901715910992:android:34bcd0bfcf290081b24c55", 11 | "android_client_info": { 12 | "package_name": "com.mindinventory.arcore2drenderingapp" 13 | } 14 | }, 15 | "oauth_client": [ 16 | { 17 | "client_id": "901715910992-ppftaiq2kb47pm7as7ek9qgobji5j44v.apps.googleusercontent.com", 18 | "client_type": 3 19 | } 20 | ], 21 | "api_key": [ 22 | { 23 | "current_key": "AIzaSyB3cRa1utZJ2T5gYbpVMAezEQzObqjTgLY" 24 | } 25 | ], 26 | "services": { 27 | "appinvite_service": { 28 | "other_platform_oauth_client": [ 29 | { 30 | "client_id": "901715910992-ppftaiq2kb47pm7as7ek9qgobji5j44v.apps.googleusercontent.com", 31 | "client_type": 3 32 | } 33 | ] 34 | } 35 | } 36 | } 37 | ], 38 | "configuration_version": "1" 39 | } -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /app/src/androidTest/java/com/mindinventory/arcore2drenderingapp/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package com.mindinventory.arcore2drenderingapp 2 | 3 | import androidx.test.platform.app.InstrumentationRegistry 4 | import androidx.test.ext.junit.runners.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext 22 | assertEquals("com.mindinventory.texture", appContext.packageName) 23 | } 24 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 9 | 10 | 17 | 18 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /app/src/main/assets/models/mind.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Mindinventory/OpenGLES-Render-2D-texture-AndroidSample/40f82045c6793bda9cb774e38e7198de6302852c/app/src/main/assets/models/mind.png -------------------------------------------------------------------------------- /app/src/main/assets/shaders/fragmentShader.frag: -------------------------------------------------------------------------------- 1 | precision highp float; 2 | 3 | uniform sampler2D u_Texture; 4 | varying vec2 v_TexCoord; 5 | 6 | void main(void){ 7 | gl_FragColor = texture2D(u_Texture, v_TexCoord); 8 | } -------------------------------------------------------------------------------- /app/src/main/assets/shaders/vertexShader.vert: -------------------------------------------------------------------------------- 1 | uniform mat4 uVPMatrix; 2 | attribute vec4 a_Position; 3 | attribute vec2 a_TexCoord; 4 | varying vec2 v_TexCoord; 5 | 6 | void main(void) 7 | { 8 | gl_Position = uVPMatrix * a_Position; 9 | v_TexCoord = vec2(a_TexCoord.x, (1.0 - (a_TexCoord.y))); 10 | } 11 | 12 | -------------------------------------------------------------------------------- /app/src/main/java/com/mindinventory/arcore2drenderingapp/ShaderUtil.java: -------------------------------------------------------------------------------- 1 | package com.mindinventory.arcore2drenderingapp; 2 | 3 | import android.content.Context; 4 | import android.opengl.GLES20; 5 | import android.util.Log; 6 | 7 | import java.io.BufferedReader; 8 | import java.io.IOException; 9 | import java.io.InputStream; 10 | import java.io.InputStreamReader; 11 | import java.util.Map; 12 | import java.util.TreeMap; 13 | 14 | /** 15 | * Shader helper functions. 16 | */ 17 | public final class ShaderUtil { 18 | /** 19 | * Converts a raw text file, saved as a resource, into an OpenGL ES shader. 20 | * 21 | * @param type The type of shader we will be creating. 22 | * @param filename The filename of the asset file about to be turned into a shader. 23 | * @param defineValuesMap The #define values to add to the top of the shader source code. 24 | * @return The shader object handler. 25 | */ 26 | public static int loadGLShader( 27 | String tag, Context context, int type, String filename, Map defineValuesMap) 28 | throws IOException { 29 | // Load shader source code. 30 | String code = readShaderFileFromAssets(context, filename); 31 | 32 | // Prepend any #define values specified during this run. 33 | String defines = ""; 34 | for (Map.Entry entry : defineValuesMap.entrySet()) { 35 | defines += "#define " + entry.getKey() + " " + entry.getValue() + "\n"; 36 | } 37 | code = defines + code; 38 | 39 | // Compiles shader code. 40 | int shader = GLES20.glCreateShader(type); 41 | GLES20.glShaderSource(shader, code); 42 | GLES20.glCompileShader(shader); 43 | 44 | // Get the compilation status. 45 | final int[] compileStatus = new int[1]; 46 | GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compileStatus, 0); 47 | 48 | // If the compilation failed, delete the shader. 49 | if (compileStatus[0] == 0) { 50 | Log.e(tag, "Error compiling shader: " + GLES20.glGetShaderInfoLog(shader)); 51 | GLES20.glDeleteShader(shader); 52 | shader = 0; 53 | } 54 | 55 | if (shader == 0) { 56 | throw new RuntimeException("Error creating shader."); 57 | } 58 | 59 | return shader; 60 | } 61 | 62 | /** 63 | * Overload of loadGLShader that assumes no additional #define values to add. 64 | */ 65 | public static int loadGLShader(String tag, Context context, int type, String filename) 66 | throws IOException { 67 | Map emptyDefineValuesMap = new TreeMap<>(); 68 | return loadGLShader(tag, context, type, filename, emptyDefineValuesMap); 69 | } 70 | 71 | /** 72 | * Checks if we've had an error inside of OpenGL ES, and if so what that error is. 73 | * 74 | * @param label Label to report in case of error. 75 | * @throws RuntimeException If an OpenGL error is detected. 76 | */ 77 | public static void checkGLError(String tag, String label) { 78 | int lastError = GLES20.GL_NO_ERROR; 79 | // Drain the queue of all errors. 80 | int error; 81 | while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) { 82 | Log.e(tag, label + ": glError " + error); 83 | lastError = error; 84 | } 85 | if (lastError != GLES20.GL_NO_ERROR) { 86 | throw new RuntimeException(label + ": glError " + lastError); 87 | } 88 | } 89 | 90 | /** 91 | * Converts a raw shader file into a string. 92 | * 93 | * @param filename The filename of the shader file about to be turned into a shader. 94 | * @return The context of the text file, or null in case of error. 95 | */ 96 | private static String readShaderFileFromAssets(Context context, String filename) 97 | throws IOException { 98 | try (InputStream inputStream = context.getAssets().open(filename); 99 | BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) { 100 | StringBuilder sb = new StringBuilder(); 101 | String line; 102 | while ((line = reader.readLine()) != null) { 103 | String[] tokens = line.split(" ", -1); 104 | if (tokens[0].equals("#include")) { 105 | String includeFilename = tokens[1]; 106 | includeFilename = includeFilename.replace("\"", ""); 107 | if (includeFilename.equals(filename)) { 108 | throw new IOException("Do not include the calling file."); 109 | } 110 | sb.append(readShaderFileFromAssets(context, includeFilename)); 111 | } else { 112 | sb.append(line).append("\n"); 113 | } 114 | } 115 | return sb.toString(); 116 | } 117 | } 118 | } 119 | -------------------------------------------------------------------------------- /app/src/main/java/com/mindinventory/arcore2drenderingapp/TextureActivity.kt: -------------------------------------------------------------------------------- 1 | package com.mindinventory.arcore2drenderingapp 2 | 3 | import android.annotation.SuppressLint 4 | import android.graphics.BitmapFactory 5 | import android.opengl.GLES20 6 | import android.opengl.GLSurfaceView 7 | import android.opengl.GLUtils 8 | import android.opengl.Matrix 9 | import android.os.Bundle 10 | import androidx.appcompat.app.AppCompatActivity 11 | import java.io.IOException 12 | import java.nio.ByteBuffer 13 | import java.nio.ByteOrder 14 | import java.nio.FloatBuffer 15 | import java.nio.ShortBuffer 16 | import javax.microedition.khronos.egl.EGLConfig 17 | import javax.microedition.khronos.opengles.GL10 18 | 19 | /** 20 | * This class uses for render 2d image using OpenGLES 21 | */ 22 | class TextureActivity : AppCompatActivity(), GLSurfaceView.Renderer { 23 | 24 | companion object { 25 | private val TAG = this::class.java.simpleName 26 | 27 | private const val VERTEX_SHADER_NAME = "shaders/vertexShader.vert" 28 | private const val FRAGMENT_SHADER_NAME = "shaders/fragmentShader.frag" 29 | private const val COORDINATES_PER_VERTEX = 2 30 | private const val VERTEX_STRIDE: Int = COORDINATES_PER_VERTEX * 4 31 | 32 | private val QUADRANT_COORDINATES = floatArrayOf( 33 | //x, y 34 | -0.5f, 0.5f, 35 | -0.5f, -0.5f, 36 | 0.5f, -0.5f, 37 | 0.5f, 0.5f, 38 | ) 39 | 40 | private val TEXTURE_COORDINATES = floatArrayOf( 41 | //x, y 42 | 0.0f, 1.0f, 43 | 0.0f, 0.0f, 44 | 1.0f, 0.0f, 45 | 1.0f, 1.0f, 46 | ) 47 | 48 | private val DRAW_ORDER = shortArrayOf(0, 1, 2, 0, 2, 3) 49 | } 50 | 51 | private val vPMatrix = FloatArray(16) 52 | private val projectionMatrix = FloatArray(16) 53 | private val viewMatrix = FloatArray(16) 54 | 55 | private var quadPositionHandle = -1 56 | private var texPositionHandle = -1 57 | private var textureUniformHandle: Int = -1 58 | private var viewProjectionMatrixHandle: Int = -1 59 | private var program: Int = -1 60 | private val textureUnit = IntArray(1) 61 | 62 | /** 63 | * Convert float array to float buffer 64 | */ 65 | private val quadrantCoordinatesBuffer: FloatBuffer = ByteBuffer.allocateDirect(QUADRANT_COORDINATES.size * 4).run { 66 | order(ByteOrder.nativeOrder()) 67 | asFloatBuffer().apply { 68 | put(QUADRANT_COORDINATES) 69 | position(0) 70 | } 71 | } 72 | 73 | /** 74 | * Convert float array to float buffer 75 | */ 76 | private val textureCoordinatesBuffer: FloatBuffer = 77 | ByteBuffer.allocateDirect(TEXTURE_COORDINATES.size * 4).run { 78 | order(ByteOrder.nativeOrder()) 79 | asFloatBuffer().apply { 80 | put(TEXTURE_COORDINATES) 81 | position(0) 82 | } 83 | } 84 | 85 | /** 86 | * Convert short array to short buffer 87 | */ 88 | private val drawOrderBuffer: ShortBuffer = ByteBuffer.allocateDirect(DRAW_ORDER.size * 2).run { 89 | order(ByteOrder.nativeOrder()) 90 | asShortBuffer().apply { 91 | put(DRAW_ORDER) 92 | position(0) 93 | } 94 | } 95 | 96 | override fun onCreate(savedInstanceState: Bundle?) { 97 | super.onCreate(savedInstanceState) 98 | setContentView(R.layout.activity_texture) 99 | 100 | findViewById(R.id.glSurfaceView).setConfiguration() 101 | } 102 | 103 | /** 104 | * Uses for set configuration of GlSurfaceView 105 | */ 106 | @SuppressLint("ClickableViewAccessibility") 107 | fun GLSurfaceView.setConfiguration() { 108 | keepScreenOn = true // Keep screen awake till ARCore performs detection 109 | preserveEGLContextOnPause = true 110 | setEGLContextClientVersion(2) 111 | setEGLConfigChooser(8, 8, 8, 8, 16, 0) 112 | setRenderer(this@TextureActivity) 113 | renderMode = GLSurfaceView.RENDERMODE_CONTINUOUSLY 114 | } 115 | 116 | /** 117 | * Called when surface is created or recreated 118 | */ 119 | override fun onSurfaceCreated(p0: GL10?, p1: EGLConfig?) { 120 | // Set GL clear color to white. 121 | GLES20.glClearColor(255f, 255f, 255f, 1.0f) 122 | 123 | // Prepare the rendering objects. This involves reading shaders, so may throw an IOException. 124 | try { 125 | val vertexShader = 126 | ShaderUtil.loadGLShader(TAG, this, GLES20.GL_VERTEX_SHADER, VERTEX_SHADER_NAME) 127 | val fragmentShader = 128 | ShaderUtil.loadGLShader(TAG, this, GLES20.GL_FRAGMENT_SHADER, FRAGMENT_SHADER_NAME) 129 | 130 | program = GLES20.glCreateProgram() 131 | GLES20.glAttachShader(program, vertexShader) 132 | GLES20.glAttachShader(program, fragmentShader) 133 | GLES20.glLinkProgram(program) 134 | GLES20.glUseProgram(program) 135 | 136 | ShaderUtil.checkGLError(TAG, "Program creation") 137 | 138 | //Quadrant position handler 139 | quadPositionHandle = GLES20.glGetAttribLocation(program, "a_Position") 140 | 141 | //Texture position handler 142 | texPositionHandle = GLES20.glGetAttribLocation(program, "a_TexCoord") 143 | 144 | //Texture uniform handler 145 | textureUniformHandle = GLES20.glGetUniformLocation(program, "u_Texture") 146 | 147 | //View projection transformation matrix handler 148 | viewProjectionMatrixHandle = GLES20.glGetUniformLocation(program, "uVPMatrix") 149 | 150 | //Enable blend 151 | GLES20.glEnable(GLES20.GL_BLEND) 152 | //Uses to prevent transparent area to turn in black 153 | GLES20.glBlendFunc(GLES20.GL_ONE, GLES20.GL_ONE_MINUS_SRC_ALPHA) 154 | 155 | // Read the texture. 156 | val textureBitmap = 157 | BitmapFactory.decodeStream(this.assets.open("models/mind.png")) 158 | 159 | GLES20.glActiveTexture(GLES20.GL_TEXTURE0) 160 | GLES20.glGenTextures(textureUnit.size, textureUnit, 0) 161 | GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureUnit[0]) 162 | 163 | GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, textureBitmap, 0) 164 | GLES20.glGenerateMipmap(GLES20.GL_TEXTURE_2D) 165 | 166 | textureBitmap.recycle() 167 | 168 | ShaderUtil.checkGLError(TAG, "Texture loading") 169 | } catch (e: IOException) { 170 | } 171 | } 172 | 173 | /** 174 | * Called after the surface is crated and whenever surface size changes 175 | */ 176 | override fun onSurfaceChanged(p0: GL10?, width: Int, height: Int) { 177 | GLES20.glViewport(0, 0, width, height) 178 | 179 | val ratio: Float = width.toFloat() / height.toFloat() 180 | 181 | // this projection matrix is applied to object coordinates 182 | // in the onDrawFrame() method 183 | Matrix.frustumM(projectionMatrix, 0, -ratio, ratio, -1f, 1f, 3f, 7f) 184 | } 185 | 186 | /** 187 | * Uses for draw the current frame 188 | */ 189 | override fun onDrawFrame(p0: GL10?) { 190 | // Use the GL clear color specified in onSurfaceCreated() to erase the GL surface. 191 | GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT or GLES20.GL_DEPTH_BUFFER_BIT) 192 | 193 | // Set the camera position (View matrix) 194 | Matrix.setLookAtM(viewMatrix, 0, 0f, 0f, 3f, 0f, 0f, 0f, 0f, 1.0f, 0.0f) 195 | 196 | // Calculate the projection and view transformation 197 | Matrix.multiplyMM(vPMatrix, 0, projectionMatrix, 0, viewMatrix, 0) 198 | 199 | try { 200 | GLES20.glUseProgram(program) 201 | 202 | // Attach the object texture. 203 | GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureUnit[0]) 204 | GLES20.glUniform1i(textureUniformHandle, 0) 205 | 206 | // Pass the projection and view transformation to the shader 207 | GLES20.glUniformMatrix4fv(viewProjectionMatrixHandle, 1, false, vPMatrix, 0) 208 | 209 | //Pass quadrant position to shader 210 | GLES20.glVertexAttribPointer( 211 | quadPositionHandle, 212 | COORDINATES_PER_VERTEX, 213 | GLES20.GL_FLOAT, 214 | false, 215 | VERTEX_STRIDE, 216 | quadrantCoordinatesBuffer 217 | ) 218 | 219 | //Pass texture position to shader 220 | GLES20.glVertexAttribPointer( 221 | texPositionHandle, 222 | COORDINATES_PER_VERTEX, 223 | GLES20.GL_FLOAT, 224 | false, 225 | VERTEX_STRIDE, 226 | textureCoordinatesBuffer 227 | ) 228 | 229 | // Enable attribute handlers 230 | GLES20.glEnableVertexAttribArray(quadPositionHandle) 231 | GLES20.glEnableVertexAttribArray(texPositionHandle) 232 | 233 | //Draw shape 234 | GLES20.glDrawElements( 235 | GLES20.GL_TRIANGLES, 236 | DRAW_ORDER.size, 237 | GLES20.GL_UNSIGNED_SHORT, 238 | drawOrderBuffer 239 | ) 240 | 241 | // Disable vertex arrays 242 | GLES20.glDisableVertexAttribArray(quadPositionHandle) 243 | GLES20.glDisableVertexAttribArray(texPositionHandle) 244 | 245 | ShaderUtil.checkGLError(TAG, "After draw") 246 | } catch (t: Throwable) { 247 | // Avoid crashing the application due to unhandled exceptions. 248 | } 249 | } 250 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_texture.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | 10 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.webp: 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https://raw.githubusercontent.com/Mindinventory/OpenGLES-Render-2D-texture-AndroidSample/40f82045c6793bda9cb774e38e7198de6302852c/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp -------------------------------------------------------------------------------- /app/src/main/res/values-night/themes.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #FFBB86FC 4 | #FF6200EE 5 | #FF3700B3 6 | #FF03DAC5 7 | #FF018786 8 | #FF000000 9 | #FFFFFFFF 10 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | ArCore2DTextureRenderingApp 3 | -------------------------------------------------------------------------------- /app/src/main/res/values/themes.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16 | 17 | 23 | -------------------------------------------------------------------------------- /app/src/test/java/com/mindinventory/arcore2drenderingapp/ExampleUnitTest.kt: -------------------------------------------------------------------------------- 1 | package com.mindinventory.arcore2drenderingapp 2 | 3 | import org.junit.Test 4 | 5 | import org.junit.Assert.* 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * See [testing documentation](http://d.android.com/tools/testing). 11 | */ 12 | class ExampleUnitTest { 13 | @Test 14 | fun addition_isCorrect() { 15 | assertEquals(4, 2 + 2) 16 | } 17 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | // repositories { 5 | // // Check that you have the following line (if not, add it): 6 | // google() // Google's Maven repository 7 | // 8 | // } 9 | dependencies { 10 | // Add this line 11 | classpath 'com.google.gms:google-services:4.3.10' 12 | 13 | } 14 | } 15 | 16 | 17 | 18 | plugins { 19 | id 'com.android.application' version '7.1.0' apply false 20 | id 'com.android.library' version '7.1.0' apply false 21 | id 'org.jetbrains.kotlin.android' version '1.6.10' apply false 22 | } 23 | 24 | //allprojects { 25 | // repositories { 26 | // // Check that you have the following line (if not, add it): 27 | // google() // Google's Maven repository 28 | // 29 | // } 30 | //} 31 | 32 | 33 | task clean(type: Delete) { 34 | delete rootProject.buildDir 35 | } -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app"s APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Kotlin code style for this project: "official" or "obsolete": 19 | kotlin.code.style=official 20 | # Enables namespacing of each library's R class so that its R class includes only the 21 | # resources declared in the library itself and none from the library's dependencies, 22 | # thereby reducing the size of the R class for that library 23 | android.nonTransitiveRClass=true -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Mindinventory/OpenGLES-Render-2D-texture-AndroidSample/40f82045c6793bda9cb774e38e7198de6302852c/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Feb 01 15:08:51 IST 2022 2 | distributionBase=GRADLE_USER_HOME 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip 4 | distributionPath=wrapper/dists 5 | zipStorePath=wrapper/dists 6 | zipStoreBase=GRADLE_USER_HOME 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | # 4 | # Copyright 2015 the original author or authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | ## 21 | ## Gradle start up script for UN*X 22 | ## 23 | ############################################################################## 24 | 25 | # Attempt to set APP_HOME 26 | # Resolve links: $0 may be a link 27 | PRG="$0" 28 | # Need this for relative symlinks. 29 | while [ -h "$PRG" ] ; do 30 | ls=`ls -ld "$PRG"` 31 | link=`expr "$ls" : '.*-> \(.*\)$'` 32 | if expr "$link" : '/.*' > /dev/null; then 33 | PRG="$link" 34 | else 35 | PRG=`dirname "$PRG"`"/$link" 36 | fi 37 | done 38 | SAVED="`pwd`" 39 | cd "`dirname \"$PRG\"`/" >/dev/null 40 | APP_HOME="`pwd -P`" 41 | cd "$SAVED" >/dev/null 42 | 43 | APP_NAME="Gradle" 44 | APP_BASE_NAME=`basename "$0"` 45 | 46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 48 | 49 | # Use the maximum available, or set MAX_FD != -1 to use that value. 50 | MAX_FD="maximum" 51 | 52 | warn () { 53 | echo "$*" 54 | } 55 | 56 | die () { 57 | echo 58 | echo "$*" 59 | echo 60 | exit 1 61 | } 62 | 63 | # OS specific support (must be 'true' or 'false'). 64 | cygwin=false 65 | msys=false 66 | darwin=false 67 | nonstop=false 68 | case "`uname`" in 69 | CYGWIN* ) 70 | cygwin=true 71 | ;; 72 | Darwin* ) 73 | darwin=true 74 | ;; 75 | MINGW* ) 76 | msys=true 77 | ;; 78 | NONSTOP* ) 79 | nonstop=true 80 | ;; 81 | esac 82 | 83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 84 | 85 | 86 | # Determine the Java command to use to start the JVM. 87 | if [ -n "$JAVA_HOME" ] ; then 88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 89 | # IBM's JDK on AIX uses strange locations for the executables 90 | JAVACMD="$JAVA_HOME/jre/sh/java" 91 | else 92 | JAVACMD="$JAVA_HOME/bin/java" 93 | fi 94 | if [ ! -x "$JAVACMD" ] ; then 95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 96 | 97 | Please set the JAVA_HOME variable in your environment to match the 98 | location of your Java installation." 99 | fi 100 | else 101 | JAVACMD="java" 102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 103 | 104 | Please set the JAVA_HOME variable in your environment to match the 105 | location of your Java installation." 106 | fi 107 | 108 | # Increase the maximum file descriptors if we can. 109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 110 | MAX_FD_LIMIT=`ulimit -H -n` 111 | if [ $? -eq 0 ] ; then 112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 113 | MAX_FD="$MAX_FD_LIMIT" 114 | fi 115 | ulimit -n $MAX_FD 116 | if [ $? -ne 0 ] ; then 117 | warn "Could not set maximum file descriptor limit: $MAX_FD" 118 | fi 119 | else 120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 121 | fi 122 | fi 123 | 124 | # For Darwin, add options to specify how the application appears in the dock 125 | if $darwin; then 126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 127 | fi 128 | 129 | # For Cygwin or MSYS, switch paths to Windows format before running java 130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then 131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 133 | 134 | JAVACMD=`cygpath --unix "$JAVACMD"` 135 | 136 | # We build the pattern for arguments to be converted via cygpath 137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 138 | SEP="" 139 | for dir in $ROOTDIRSRAW ; do 140 | ROOTDIRS="$ROOTDIRS$SEP$dir" 141 | SEP="|" 142 | done 143 | OURCYGPATTERN="(^($ROOTDIRS))" 144 | # Add a user-defined pattern to the cygpath arguments 145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 147 | fi 148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 149 | i=0 150 | for arg in "$@" ; do 151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 153 | 154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 156 | else 157 | eval `echo args$i`="\"$arg\"" 158 | fi 159 | i=`expr $i + 1` 160 | done 161 | case $i in 162 | 0) set -- ;; 163 | 1) set -- "$args0" ;; 164 | 2) set -- "$args0" "$args1" ;; 165 | 3) set -- "$args0" "$args1" "$args2" ;; 166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;; 167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 172 | esac 173 | fi 174 | 175 | # Escape application args 176 | save () { 177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 178 | echo " " 179 | } 180 | APP_ARGS=`save "$@"` 181 | 182 | # Collect all arguments for the java command, following the shell quoting and substitution rules 183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 184 | 185 | exec "$JAVACMD" "$@" 186 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 34 | 35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 37 | 38 | @rem Find java.exe 39 | if defined JAVA_HOME goto findJavaFromJavaHome 40 | 41 | set JAVA_EXE=java.exe 42 | %JAVA_EXE% -version >NUL 2>&1 43 | if "%ERRORLEVEL%" == "0" goto execute 44 | 45 | echo. 46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 47 | echo. 48 | echo Please set the JAVA_HOME variable in your environment to match the 49 | echo location of your Java installation. 50 | 51 | goto fail 52 | 53 | :findJavaFromJavaHome 54 | set JAVA_HOME=%JAVA_HOME:"=% 55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 56 | 57 | if exist "%JAVA_EXE%" goto execute 58 | 59 | echo. 60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 61 | echo. 62 | echo Please set the JAVA_HOME variable in your environment to match the 63 | echo location of your Java installation. 64 | 65 | goto fail 66 | 67 | :execute 68 | @rem Setup the command line 69 | 70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 71 | 72 | 73 | @rem Execute Gradle 74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 75 | 76 | :end 77 | @rem End local scope for the variables with windows NT shell 78 | if "%ERRORLEVEL%"=="0" goto mainEnd 79 | 80 | :fail 81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 82 | rem the _cmd.exe /c_ return code! 83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 84 | exit /b 1 85 | 86 | :mainEnd 87 | if "%OS%"=="Windows_NT" endlocal 88 | 89 | :omega 90 | -------------------------------------------------------------------------------- /media/mobile.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Mindinventory/OpenGLES-Render-2D-texture-AndroidSample/40f82045c6793bda9cb774e38e7198de6302852c/media/mobile.png -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | pluginManagement { 2 | repositories { 3 | gradlePluginPortal() 4 | google() 5 | mavenCentral() 6 | } 7 | } 8 | dependencyResolutionManagement { 9 | repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS) 10 | repositories { 11 | google() 12 | mavenCentral() 13 | } 14 | // dependencies { 15 | // // Add this line 16 | // classpath 'com.google.gms:google-services:4.3.10' 17 | // 18 | // } 19 | } 20 | rootProject.name = "ArCore2DRenderingApp" 21 | include ':app' 22 | --------------------------------------------------------------------------------