Search found 225 matches

by jbikker
Tue Nov 29, 2011 6:12 pm
Forum: General Development
Topic: MIS question
Replies: 16
Views: 11626

Re: MIS question

Actually it helped greatly even in that indoor scene. Without MIS, I would get quick convergence, but lots of fireflies. With the reference path tracer (see the other thread) I would get slow convergence, but a pleasant, soft noise. MIS gets me both, basically. Quite satisfying. And the math isn't c...
by jbikker
Tue Nov 29, 2011 6:02 pm
Forum: Visuals, Tools, Demos & Sources
Topic: Regarding comparing GLSL Pathtracer with a CUDA Pathtracer
Replies: 9
Views: 9303

Re: Regarding comparing GLSL Pathtracer with a CUDA Pathtrac

I did something similar for the Kajiya demo, in CUDA. It's not using an acceleration structure (apart from a few bounding boxes, but since they are nested, that doesn't qualify as a bounding volume hierarchy ;) ). Video is here: OHWxsUUataw Actually that's still the old scene, without elipsoids. O w...
by jbikker
Tue Nov 29, 2011 5:56 pm
Forum: ompf2
Topic: Welcome!
Replies: 32
Views: 36834

Re: Welcome!

Turns out there is something called an ATOM feed integrated with phpBB. Is this useful / can it replace RSS? I'm a noob. ;) I have enabled it now, let me know if this does the job for you.
by jbikker
Tue Nov 29, 2011 7:48 am
Forum: General Development
Topic: MIS question
Replies: 16
Views: 11626

MIS question

I finally got my head around multiple importance sampling, and added it to Brigade. I used the implementation of PBRT for reference. Basic idea is: 1. MIS is used to sample direct illumination (however, also after 1 or more bounces); 2. MIS is used to weigh direct lighting computed by 2 distinct met...
by jbikker
Mon Nov 28, 2011 8:21 am
Forum: ompf2
Topic: Welcome!
Replies: 32
Views: 36834

Welcome!

Hello, and welcome to 'ompf.net'! As you may have noticed, ompf.org has been down for about a week now. This domain is maintained by 'tbp', who is also the founder of the ompf forum. Sadly, tbp can't be reached at the moment. For this reason, we have setup a temporary forum. Everything is empty, und...