Hi, Dear All!
I've now stuck on a point of dealing with pbo object.
I've written the following code,
Code :GLubyte data[width*height]; glGenBuffers(1,&pixelPackBuffer); glBindBuffer(GL_PIXEL_PACK_BUFFER,pixelPackBuffer); glBufferData(GL_PIXEL_PACK_BUFFER,width*height,data,GL_STATIC_READ); glReadPixels(0,0,width,height,GL_STENCIL_INDEX,GL_UNSIGNED_BYTE,BUFFER_OFFSET(0));
but when I insert a breakpoint to view the content of the array data, found nothing was read. Any idea?
Thanks in advance!