public void onSurfaceCreated(GL10 gl, EGLConfig config) { // ... boolean SEE_THRU = true; startTime = System.currentTimeMillis(); fpsStartTime = startTime; numFrames = 0; // Define the lighting float lightAmbient[] = new float[] {0.2f, 0.2f, 0.2f, 1}; float lightDiffuse[] = new float[] {1, 1, 1, 1}; float[] lightPos = new float[] {1, 1, 1, 1}; gl.glEnable(GL10.GL_LIGHTING); gl.glEnable(GL10.GL_LIGHT0); gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_AMBIENT, lightAmbient, 0); gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_DIFFUSE, lightDiffuse, 0); gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_POSITION, lightPos, 0); // What is the cube made of? float matAmbient[] = new float[] {1, 1, 1, 1}; float matDiffuse[] = new float[] {1, 1, 1, 1}; gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_AMBIENT, matAmbient, 0); gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_DIFFUSE, matDiffuse, 0); // Set up any OpenGL options we need gl.glEnable(GL10.GL_DEPTH_TEST); gl.glDepthFunc(GL10.GL_LEQUAL); gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); // Optional: disable dither to boost performance // gl.glDisable(GL10.GL_DITHER); // ... if (SEE_THRU) { gl.glDisable(GL10.GL_DEPTH_TEST); gl.glEnable(GL10.GL_BLEND); gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE); } // Enable textures gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY); gl.glEnable(GL10.GL_TEXTURE_2D); // Load the cube's texture from a bitmap GLCube.loadTexture(gl, context, R.drawable.android); }