View Full Version : Copy display buffer to texture
I want to copy the contents of the display buffer to texture memory. So I can draw it back again with filtering, zoom and rotation. How do I do this ?
Thank for any help Mike
07-03-2001, 01:39 PM
You can read the entire colour buffer, with the read pixels function.
Create a buffer the size of you screen.
unsigned char *image[width*height*3];
then read the pixels
That should do it, take a look at this function, though it is what you want I may have something slightly wrong.
07-03-2001, 02:05 PM
If you want speed, you're probably better using glTexCopySubImage.
Powered by vBulletin® Version 4.2.0 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.