updated, changed objects to es 3.1

Author: JimSeker

HelloOpenGLES31/.idea/gradle.xml

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 32
+    compileSdkVersion 33
 
     defaultConfig {
         applicationId "edu.cs4730.helloopengles31"
         minSdkVersion 26
-        targetSdkVersion 32
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
     }

HelloOpenGLES31/app/build.gradle

@@ -23,28 +23,31 @@
 import android.opengl.GLES31;
 
 /**
- * A two-dimensional square for use as a drawn object in OpenGL ES 2.0.
+ * A two-dimensional square for use as a drawn object in OpenGL ES 3.1
  */
 public class Square {
 
     private final String vertexShaderCode =
             // This matrix member variable provides a hook to manipulate
             // the coordinates of the objects that use this vertex shader
-            "uniform mat4 uMVPMatrix;" +
-            "attribute vec4 vPosition;" +
-            "void main() {" +
+        "#version 310 es\n"+
+            "uniform mat4 uMVPMatrix;\n" +
+            "in vec4 vPosition;\n" +
+            "void main() {\n" +
             // The matrix must be included as a modifier of gl_Position.
             // Note that the uMVPMatrix factor *must be first* in order
             // for the matrix multiplication product to be correct.
-            "  gl_Position = uMVPMatrix * vPosition;" +
-            "}";
+            "  gl_Position = uMVPMatrix * vPosition;\n" +
+            "}\n";
 
     private final String fragmentShaderCode =
-            "precision mediump float;" +
-            "uniform vec4 vColor;" +
-            "void main() {" +
-            "  gl_FragColor = vColor;" +
-            "}";
+        "#version 310 es \n"+
+            "precision mediump float; \n" +
+            "in uniform vec4 vColor;\n" +
+            "out vec4 gl_FragColor;\n" +
+            "void main() {\n" +
+            "  gl_FragColor = vColor;\n" +
+            "}\n";
 
     private final FloatBuffer vertexBuffer;
     private final ShortBuffer drawListBuffer;

HelloOpenGLES31/app/src/main/java/edu/cs4730/helloopengles31/Square.java

@@ -29,21 +29,24 @@ public class Triangle {
     private final String vertexShaderCode =
             // This matrix member variable provides a hook to manipulate
             // the coordinates of the objects that use this vertex shader
-            "uniform mat4 uMVPMatrix;" +
-            "attribute vec4 vPosition;" +
-            "void main() {" +
+        "#version 310 es\n"+
+            "uniform mat4 uMVPMatrix;\n" +
+            "in vec4 vPosition;\n" +
+            "void main() {\n" +
             // the matrix must be included as a modifier of gl_Position
             // Note that the uMVPMatrix factor *must be first* in order
             // for the matrix multiplication product to be correct.
-            "  gl_Position = uMVPMatrix * vPosition;" +
-            "}";
+            "  gl_Position = uMVPMatrix * vPosition;\n" +
+            "}\n";
 
     private final String fragmentShaderCode =
-            "precision mediump float;" +
-            "uniform vec4 vColor;" +
-            "void main() {" +
-            "  gl_FragColor = vColor;" +
-            "}";
+        "#version 310 es \n"+
+            "precision mediump float; \n" +
+            "in uniform vec4 vColor;\n" +
+            "out vec4 gl_FragColor;\n" +
+            "void main() {\n" +
+            "  gl_FragColor = vColor;\n" +
+            "}\n";
 
     private final FloatBuffer vertexBuffer;
     private final int mProgram;

HelloOpenGLES31/app/src/main/java/edu/cs4730/helloopengles31/Triangle.java

@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.2'
+        classpath 'com.android.tools.build:gradle:7.4.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

HelloOpenGLES31/build.gradle

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-all.zip