[Raypp-general] Sampling patch and triangle mesh updates

[Andreas K. <and...@we...>]

Hi all!

I committed some improvements to the triangle mesh code. 
It now uses a fast rejection mechanism, which can speed up 
rendering of the teapot scene by a factor of about 4.
Next thing would be hierachical ordering of the triangles to 
handle hudge meshes.

I also added code to smooth the triangle mesh using normal
interpolation. The teapot looks much nicer now.

Apart from the triangle mesh stuff I submitted a patch in the
source forge system. It introduces a flexible sampling class.
This comes from my path tracing code, but I already added
it to the ray tracer which uses it for subsampling pixels.
See phongtest.cxx for an example how to use it.

Please have a look at the patch. I'd like to commit it to CVS
if nobody shouts... ;-)

Have fun,
Andreas