|
![](/i/fill.gif) |
Fredrik Eriksson <fe79}--at--{yahoo}--dot--{com> wrote:
> Typically, the perspective transform is defined such that the resulting
> z-coordinates fall in a suitable range (e.g. [0,1]). Clipping can then be
> performed without knowledge about the original clipping planes.
Ah, now that you mention that, yes, that's probably a very common
technique. Rather than carrying around the distances of the clipping
planes, what is done is to scale the scene so that the clipping planes
are at distances 0 (well, almost) and 1 from the camera. This scaling
is then undone by the perspective projection.
--
- Warp
Post a reply to this message
|
![](/i/fill.gif) |