Hi!
I want to render to an image, let’s say 1024x1024.
Right now I use windowed mode and set the resolution
to what I want, then I render to the back buffer,
read the back buffer and write it to a file (bmp, tga, or whatever).
I use 32 bit color and the stencil buffer (for masking).
I’m wondering if there is a more convenient way of doing this
(its a bit problematic to use windowed mode since if any area
is outside the desktop, this area is disregarded during rendering).
I’ve seen some OpenGL render to texture extensions,
(like ARB_render_texture and ARB_pbuffer),
but those doesn’t seem to be widely available.
(I have a GF3 and non of them are present).
Or have I missed some other functionality in OpenGL?
I hope you understand what I mean…
Any thoughts appreciated.
Christian