Hello! Im new to opengl but not to 3d rendering concepts. Im using opengl 2.0 + GLSL to render some stuff. I want to render to one or more off screen surfaces, possibly of different pixel formats. Can i do this in standard ogl2.0 or do i have to use some extensions? If so, which one? I know this is fairly standard functionality in graphics cards newer than geforce 6000/radeon 9000 series, and ive used this in directX, but now i want to do it in opengl too. Any links or google keywords are greatly appreciated. Also, id like to use floating point textures, like 4 * 32bit float pixel format. What extensions do i need for that? //Emil