Florian Brucker wrote:
> I've put together a guide on how to improve rendering speed with 
> POV-Ray. It is meant to be an introduction to the topic, a collection of 
> links to already existing articles and a place to publish new tips and 
> tricks:
> 
> http://torfbold.com/index.php?main=Graphics&sub=POV+Speed+Guide
> 
> I'm of course very interested in feedback from the community. So if 
> you've got critcism, suggestions, spotted typos, etc. I'd like to know 
> about it.

Fairly elaborate but you stay somewhat vague in a lot of places - in the 
hardware section you say FPU, L1 cache, L2 cache, memory and bus speed 
are important but not to what extend and what this means for the reader 
- in fact the influence of memory/cache performance depends quite a lot 
on the scene.  These parts of your guide are probably of quite limited 
help for someone who tries to speed up his renders.

What you write about performance of scanline rendering vs. raytracing is 
  wrong in fact - like any statement that one of them is faster than the 
other.  They just scale differently.  Also it is not that much more 
research is going into scanline rendering algorithm improvements than 
into raytracing techniques but of course there is a real lot of money 
put into specialized hardware.

Still it gives a nice outline what aspects are actually influencing the 
render speed.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 23 Sep. 2004 _____./\/^>_*_<^\/\.______

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