dragonmage <dra### [at] gmailcom> wrote:
> yes, an example of hardware limits is that, due to limited z buffer
> precision, the ratio between far and near clip planes needs to be kept
> within certain limits (which vary depending on the accuracy you need). Some
> ppl, use a rule of 1:300.
> But POV renders to files so no issue with z buffer there.

  I think you have some confusions there. Firstly, POV-Ray doesn't use
any Z-buffer of any kind (raytracers don't need those), and secondly,
even if it used one, rendering to a file or to the screen makes no
difference, why would it? It's not like rendering to a file magically
removed the need for Z-buffering compared to rendering to the screen.
(And no, Z-buffering is not automatic/mandatory even if you scanline-render
using 3D hardware. It's perfectly possible to turn the Z-buffer off.)

-- 
                                                          - Warp

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