Dispersion with VRAY

Dispersion with VRAY
By Sven Brooke
All images rendered in 3DSMAX using VRAY 1.09.02g. System Athlon
1800+ 512Meg RAM
DISCLAIMER: Nothing here is in any way a final polished image, they are just the
results of some tests I was mucking about with, that I thought I'd share
I wanted to find a way to creating an 'in camera' dispersion effect, rather than the
traditional method of faking it based on rendering 3 passes each set to slightly different
IOR values, and combining the RGB channels in Photoshop or similar. After a bit of
experimenting I managed to duplicate the effect using three versions of the VRAY
material (one each for red, green and blue) combined with a Shellac material, which
turned out to be a lot faster to render than previous dabblings with Vray and Shellac. And
had the bonus of creating a dispersed caustic effect which i hadn't banked on :)
Its like a disco ball Click to download AVI.
Each frame took 20 seconds or less to render
By popular request, here's a .zip file containing the max4 scene file and a .mat file. Click
to download. Enjoy, and create something funky with it.
May not render properly when first opened. Seems that sometimes shellac and composite
materials need to be 'woken up' by clicking on them, going through the submaterials and
dragging them to other slots in the material editor before they render as they should.
Test scene with IOR based on glass (1.6). It took a couple of minutes to render
Same scene different arrangement
same scene but with IOR of around 2.417 (diamond)
Hey its that scene again. A test with HDRI lighting and reflections. The severe artifacting
on the image is caused by the low GI settings and a small bucket size - I was impatient to
see this thing as it rendered. It took a whopping 30 minutes.
Vlado's waxdragon sample with a glass makeover, excuse the lack of antilaising, it was
taking too long to render.
Same dragon, in diamond.
All images created by Sven Brooke with a digital screwdriver