Caustics and the BDPathTracer

[anchovy]

Vlado-

This is probably related to the other bug I posted on the BDPathTracer and the dispersion flag not playing well together. I am able to get caustics out of the prism as long as its without dispersion or a vray blend with three IOR differentiated glasses. I had been able to use this trick in the past with the Pathtracer but not now.


This is what it looks like when I try to use dispersion with the new BDPTracer

This is the results with the dispersion flag off

Here is the target image

This is the result I get in 2012 with just the PathTracer

Here is the result i got in 1.5 with the PathTracer

http://morphographic.com/VrayTest/20...persion_01.max

Note that the 1.5 PathTracer result is the most correct other than the really high varience in the caustics and this was letting it run the full 60k samples.

Any thoughts?

Thanks

-Michael

[anchovy]

anyone? Im not sure if anyone is playing with the BDPathTracing, its fun for sure and I hope it eventually gets the attention it deserves.

Thanks

-Michael

[3LP]

I'm willing to try play with that, definitely!

Is there any help file or tutorial explaining how to configure Vray to use BDPTracer?

Thanks

Stan

[3LP]

Hey there,
Bump this thread, any news about a help file explaining how to use VrayBPTracer?

Thanks

Stan

[Zdravko]

Unfortunately we do not have official help files about VRayBPTracer yet. We are working on that.
If you have any particular questions while working with it please feel free to forward them to: support@chaosgroup.com
Also in order to render with VRayBPTrace you need set the VRayBPTrace helper in the scene ( Create>Helpers>VRay>VRayBPTrace).