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2014/10/16 ¤W¤È 08:27:20
android Programming Glossary: vertexbufferModifying camera output using SurfaceTexture and OpenGL http://stackoverflow.com/questions/12519235/modifying-camera-output-using-surfacetexture-and-opengl void main gl_FragColor vColor private FloatBuffer vertexBuffer textureVerticesBuffer private ShortBuffer drawListBuffer private.. squareVertices.length 4 bb.order ByteOrder.nativeOrder vertexBuffer bb.asFloatBuffer vertexBuffer.put squareVertices vertexBuffer.position.. ByteOrder.nativeOrder vertexBuffer bb.asFloatBuffer vertexBuffer.put squareVertices vertexBuffer.position 0 ByteBuffer dlb ByteBuffer.allocateDirect..
OpenGL ES Android Matrix Transformations http://stackoverflow.com/questions/13480043/opengl-es-android-matrix-transformations COORDS_PER_VERTEX GLES20.GL_FLOAT false vertexStride vertexBuffer get handle to fragment shader's vColor member mColorHandle GLES20.glGetUniformLocation..
Is Opengl Development GPU Dependant? http://stackoverflow.com/questions/17229066/is-opengl-development-gpu-dependant vColor void main gl_FragColor vColor final FloatBuffer vertexBuffer final int mProgram int mPositionHandle int mColorHandle number.. create a floating point buffer from the ByteBuffer vertexBuffer bb.asFloatBuffer prepare shaders and OpenGL program int vertexShader.. lineCoords 0 lineCoords 1 lineCoords 3 lineCoords 4 vertexBuffer.put lineCoords vertexBuffer.position 0 Add program to OpenGL..
Trying to draw textured triangles on device fails, but the emulator works. Why? http://stackoverflow.com/questions/2113638/trying-to-draw-textured-triangles-on-device-fails-but-the-emulator-works-why gl.glVertexPointer 3 GL10.GL_FLOAT 0 vertexBuffer gl.glTexCoordPointer 2 GL10.GL_FLOAT 0 textureBuffer Push transformation.. above. Also here is the initialization of vertexBuffer textureBuffer and indexBuffer ByteBuffer byteBuf ByteBuffer.allocateDirect.. vertices.length 4 byteBuf.order ByteOrder.nativeOrder vertexBuffer byteBuf.asFloatBuffer vertexBuffer.put vertices vertexBuffer.position..
How to use onSensorChanged sensor data in combination with OpenGL http://stackoverflow.com/questions/2881128/how-to-use-onsensorchanged-sensor-data-in-combination-with-opengl 2 private GLSurfaceView openglView private FloatBuffer vertexBuffer private ByteBuffer indexBuffer private FloatBuffer colorBuffer.. the 3 axis on the screen gl.glVertexPointer 3 GL_FLOAT 0 vertexBuffer gl.glColorPointer 4 GL_FLOAT 0 colorBuffer gl.glDrawElements.. vertices.length 4 vbb.order ByteOrder.nativeOrder vertexBuffer vbb.asFloatBuffer vertexBuffer.put vertices vertexBuffer.position..
http://stackoverflow.com/questions/3811082/spinning-globe-in-opengl-es image this.half_first first this.half_second second this.vertexBuffer FloatBuffer.wrap total_vertexBuff this.normalsBuffer FloatBuffer.wrap.. Log.d TAG texCoords_counter texCoords_counter Log.d TAG vertexBuffer this.vertexBuffer.capacity Log.d TAG texCoordsBuffer this.texCoordsBuffer.capacity.. texCoords_counter Log.d TAG vertexBuffer this.vertexBuffer.capacity Log.d TAG texCoordsBuffer this.texCoordsBuffer.capacity..
Modifying camera output using SurfaceTexture and OpenGL http://stackoverflow.com/questions/12519235/modifying-camera-output-using-surfacetexture-and-opengl require n precision mediump float uniform vec4 vColor void main gl_FragColor vColor private FloatBuffer vertexBuffer textureVerticesBuffer private ShortBuffer drawListBuffer private final int mProgram private int mPositionHandle private.. texture _texture ByteBuffer bb ByteBuffer.allocateDirect squareVertices.length 4 bb.order ByteOrder.nativeOrder vertexBuffer bb.asFloatBuffer vertexBuffer.put squareVertices vertexBuffer.position 0 ByteBuffer dlb ByteBuffer.allocateDirect drawOrder.length.. bb ByteBuffer.allocateDirect squareVertices.length 4 bb.order ByteOrder.nativeOrder vertexBuffer bb.asFloatBuffer vertexBuffer.put squareVertices vertexBuffer.position 0 ByteBuffer dlb ByteBuffer.allocateDirect drawOrder.length 2 dlb.order ByteOrder.nativeOrder..
OpenGL ES Android Matrix Transformations http://stackoverflow.com/questions/13480043/opengl-es-android-matrix-transformations coordinate data GLES20.glVertexAttribPointer mPositionHandle COORDS_PER_VERTEX GLES20.GL_FLOAT false vertexStride vertexBuffer get handle to fragment shader's vColor member mColorHandle GLES20.glGetUniformLocation mProgram vColor Set color for drawing..
Is Opengl Development GPU Dependant? http://stackoverflow.com/questions/17229066/is-opengl-development-gpu-dependant String fragmentShaderCode precision mediump float uniform vec4 vColor void main gl_FragColor vColor final FloatBuffer vertexBuffer final int mProgram int mPositionHandle int mColorHandle number of coordinates per vertex in this array final int COORDS_PER_VERTEX.. device hardware's native byte order bb.order ByteOrder.nativeOrder create a floating point buffer from the ByteBuffer vertexBuffer bb.asFloatBuffer prepare shaders and OpenGL program int vertexShader MyRenderer.loadShader GLES20.GL_VERTEX_SHADER vertexShaderCode.. 3 uX lineCoords 4 uY lineCoords 5 0.0f Log.i JO lineCoords lineCoords 0 lineCoords 1 lineCoords 3 lineCoords 4 vertexBuffer.put lineCoords vertexBuffer.position 0 Add program to OpenGL environment GLES20.glUseProgram mProgram get handle to vertex..
Trying to draw textured triangles on device fails, but the emulator works. Why? http://stackoverflow.com/questions/2113638/trying-to-draw-textured-triangles-on-device-fails-but-the-emulator-works-why GL10.GL_VERTEX_ARRAY gl.glEnableClientState GL10.GL_TEXTURE_COORD_ARRAY gl.glVertexPointer 3 GL10.GL_FLOAT 0 vertexBuffer gl.glTexCoordPointer 2 GL10.GL_FLOAT 0 textureBuffer Push transformation matrix gl.glPushMatrix Transformation matrices.. Edit As requested added the calls to glVertexPointer and glTexCoordPointer above. Also here is the initialization of vertexBuffer textureBuffer and indexBuffer ByteBuffer byteBuf ByteBuffer.allocateDirect vertices.length 4 byteBuf.order ByteOrder.nativeOrder.. and indexBuffer ByteBuffer byteBuf ByteBuffer.allocateDirect vertices.length 4 byteBuf.order ByteOrder.nativeOrder vertexBuffer byteBuf.asFloatBuffer vertexBuffer.put vertices vertexBuffer.position 0 byteBuf ByteBuffer.allocateDirect texture.length..
How to use onSensorChanged sensor data in combination with OpenGL http://stackoverflow.com/questions/2881128/how-to-use-onsensorchanged-sensor-data-in-combination-with-opengl for all possibilities private static int MODUS 2 private GLSurfaceView openglView private FloatBuffer vertexBuffer private ByteBuffer indexBuffer private FloatBuffer colorBuffer private SensorManager mSensorManager private float rotationMatrix.. to simulate augmented behaviour gl.glTranslatef 0 2 0 draw the 3 axis on the screen gl.glVertexPointer 3 GL_FLOAT 0 vertexBuffer gl.glColorPointer 4 GL_FLOAT 0 colorBuffer gl.glDrawElements GL_LINES 6 GL_UNSIGNED_BYTE indexBuffer public void onSurfaceChanged.. indices 0 1 0 2 0 3 ByteBuffer vbb vbb ByteBuffer.allocateDirect vertices.length 4 vbb.order ByteOrder.nativeOrder vertexBuffer vbb.asFloatBuffer vertexBuffer.put vertices vertexBuffer.position 0 vbb ByteBuffer.allocateDirect colors.length 4 vbb.order..
http://stackoverflow.com/questions/3811082/spinning-globe-in-opengl-es position_dst texCoordsBuffers i .get j this.image image this.half_first first this.half_second second this.vertexBuffer FloatBuffer.wrap total_vertexBuff this.normalsBuffer FloatBuffer.wrap total_normalsBuff this.texCoordsBuffer FloatBuffer.wrap.. total_textCoordsBuff Log.d TAG vertex_counter vertex_counter Log.d TAG texCoords_counter texCoords_counter Log.d TAG vertexBuffer this.vertexBuffer.capacity Log.d TAG texCoordsBuffer this.texCoordsBuffer.capacity this.textures_ids IntBuffer.allocate.. Log.d TAG vertex_counter vertex_counter Log.d TAG texCoords_counter texCoords_counter Log.d TAG vertexBuffer this.vertexBuffer.capacity Log.d TAG texCoordsBuffer this.texCoordsBuffer.capacity this.textures_ids IntBuffer.allocate 2 this.totalVertexCount..
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