I agree. I wonder if it would be possible for BRL to add their own `image buffers` system inbetween the Blitz program and the OpenGL library, as a transparent thing that OpenGL doesn't really know about.
I agree there are lots of things that can be done when you can render to a destination which can also be used as a source. It makes sense because source and dest are two sides of the same coin.
It's also sad how much effort is needed to read one single pixel from the backbuffer, having to set up glReadPixels with several calls, etc. Very slow.
But OpenGL is good at rendering.
I agree there are lots of things that can be done when you can render to a destination which can also be used as a source. It makes sense because source and dest are two sides of the same coin.
It's also sad how much effort is needed to read one single pixel from the backbuffer, having to set up glReadPixels with several calls, etc. Very slow.
But OpenGL is good at rendering.