Search found 9 matches

by Tristan
Thu Oct 30, 2014 12:07 am
Forum: General Development
Topic: Why does all the major renderer use path tracing?
Replies: 2
Views: 2329

Re: Why does all the major renderer use path tracing?

Despite the new Renderman also supporting VCM it will still be more common to use its uni-directional path tracing mode (at least for film VFX work) simply because it's faster for most lighting situations. It's certainly nice to have alternative options in those cases where it's beneficial, but if y...
by Tristan
Wed Mar 19, 2014 2:55 pm
Forum: GPU
Topic: Ray Tracing on a chip (yeah. again)
Replies: 8
Views: 5661

Re: Ray Tracing on a chip (yeah. again)

FWIW John Carmack had this to say about it on twitter:

I am very happy with the advent of the PVR Wizard ray tracing tech. RTRT HW from people with a clue!

I had reviewed some ray tracing hardware before the PVR stuff that was laughably unsuitable to the proposed gaming applications.
by Tristan
Fri Mar 07, 2014 3:33 pm
Forum: General Development
Topic: Measure the convergence speed
Replies: 20
Views: 10122

Re: Measure the convergence speed

It's a good read, but I think there have been improvements in the basic approach since it was published.

Any pointers to those improvements? :)
by Tristan
Wed Jul 31, 2013 3:34 pm
Forum: General Development
Topic: My Reformulation of the Rendering Equation (+Applications)
Replies: 7
Views: 4682

Re: My Reformulation of the Rendering Equation (+Application

Thanks for posting this Ian. I certainly found it helpful.
by Tristan
Mon Jul 01, 2013 10:45 am
Forum: General Development
Topic: Best methods for scene preview
Replies: 6
Views: 3549

Re: Best methods for scene preview

Keep us posted, I'm interested to hear your findings :)
by Tristan
Tue Jun 25, 2013 10:00 am
Forum: Links & Papers
Topic: Correlated Multi-Jittered Sampling
Replies: 4
Views: 4732

Correlated Multi-Jittered Sampling

Hey guys, I came across this while reading over the new PRMan realease notes and thought it might be of interest to some of you: http://graphics.pixar.com/library/MultiJitteredSampling/paper.pdf We present a new technique for generating sets of stratified samples on the unit square. Though based on ...
by Tristan
Thu Oct 11, 2012 12:35 pm
Forum: General Development
Topic: getting started
Replies: 7
Views: 3668

Re: getting started

Haha wow that's quite a development environment you've got there!
by Tristan
Fri Jun 29, 2012 2:31 pm
Forum: General Development
Topic: Anti aliasing question, advices, councils...
Replies: 34
Views: 12977

Re: Anti aliasing question, advices, councils...

I will be curious to know, how movies-maker handle this kind of problem ? Does someone know ? Because it seems that traditional techniques (filtering...) does not produce very good results :-( I work with PRMan on feature films and although we see this problem too when looking at the raw renders, a...
by Tristan
Fri Jun 29, 2012 1:29 pm
Forum: Off-line
Topic: Ashikmin-Shirley brdf
Replies: 1
Views: 6093

Re: Ashikmin-Shirley brdf

Thanks for finding this, good stuff.

Go to advanced search