RenderToTexture

Dear All,

What dio you mean by RenderTotexture.Can I implement using ARB extensions.

Thanks in advance

rendering to texture means that you render your scene directly into some texture rather than to a GPU’s framebuffer.
It can be done by framebuffer object extension.
http://www.opengl.org/registry/specs/EXT/framebuffer_object.txt

FBO
PBO included in GL 2.1 support by 7950 currently
or simplest is glCopySub