glCopyTexSubImage2D method
      
void
glCopyTexSubImage2D()
      
     
    
    
Implementation
void glCopyTexSubImage2D(int target, int level, int xoffset, int yoffset, int x, int y, int width, int height){
  gles.glCopyTexSubImage2D(gl, target, level, xoffset, yoffset, x, y, width, height);
}