Hi There!
Is there a possibility to do some “putpixel(x,y,color)” after opengl has rendered the scene?
that means, accessing the surface direct (like libSDL.org or gaffer.org OpenPTC does)…?
perhaps for some 2d effects in a “over” a 3d-scene? (like blitting some text or pics)
greets’n thanx 4 help
Bastian
Use glDrawPixels(). This function can draw directly to the frame buffer.
Is this fast? cause I have many pixels to draw. or is it faster to manipulate a texture, load it and put it on a square?
thanx, bastian.
This may or may not help, but here is how they do it with DirectX 7 on the Radeon adapter: http://www.ati.com/na/pages/resource_cen…ectedVideo.html
Enjoy!
Glossifah