Re: GLX in bad state

lør, 03.04.2004 kl. 22.17 skrev Gavriel State:
> In a typical frame from the opening intro, there are a total of 22 UpdateTexture
> operations, on 8 different textures.  The sizes of these textures are as follows:
> 
> 128 x 128
> 256 x 256
> 128 x 128
> 512 x 256
> 128 x 128
> 128 x 128
> 128 x 128
> 256 x 256
> 
> At 32 bpp, this amounts to about 1.2 Megs of RAM.

Oh, almost forgot to mention: Each pbuffer comes with its own Zbuffer,
so the actual VRAM spent here is the double (2.4 MB). That is, over 1 MB
is wasted here, and there's not much to be done about that with the
current API. For the record, ARB_render_texture would not help with this
waste; with it, we'd still have a separate zbuffer per pbuffer/texture
combo, so something else is needed to fix the VRAM waste completely.