switch (attribute.usage) {
case Usage.Position:
byteBuffer.position(attribute.offset);
gl.glEnableClientState(GL11.GL_VERTEX_ARRAY);
gl.glVertexPointer(attribute.numComponents, GL10.GL_FLOAT, attributes.vertexSize, byteBuffer);
break;
case Usage.Color:
case Usage.ColorPacked:
int colorType = GL10.GL_FLOAT;