@Override
public void onDrawFrame( GL10 gl )
{
GLES20.glClear(
GLES20.GL_COLOR_BUFFER_BIT |
GLES20.GL_DEPTH_BUFFER_BIT );
if( program == 0 )
return;
if( surfaceProgram == 0 ||
program == 0 )
{
GLES20.glClear(
GLES20.GL_COLOR_BUFFER_BIT |
GLES20.GL_DEPTH_BUFFER_BIT );
return;
}