Rendering to a texture.

Graphics and GPU Programming Programming

Started by Azrael July 11, 2001 04:55 PM

2 comments, last by Azrael 22 years, 10 months ago

Azrael

128

Author

July 11, 2001 04:55 PM

How can you render to a texture in opengl?

Obelix

122

July 11, 2001 11:17 PM

You can not render direct to a texture so the normal way is to render to the backbuffer and use glCopyTexImage2D.

Seaman

122

July 13, 2001 03:17 PM

Check out p_buffer extension on newer cards.

Obelix

122

July 13, 2001 11:46 PM

Right, I forgot that alternative.

I think that the pbuffer is more like an extension to the driver than the card. You have it also for TNT cards if you have recent drivers. I do not know if it is faster than the backbuffer approach but you are not limited to how the backbuffer is setup.