Search found 42 matches

by raider
Thu Aug 16, 2012 11:25 pm
Forum: General Development
Topic: A Path tracer
Replies: 11
Views: 11754

Re: A Path tracer

Hm... No, it's not correct. What are the lighter circular areas on the left and right walls? That's also visible on the single light scene.
by raider
Thu Aug 16, 2012 7:53 pm
Forum: General Development
Topic: Anybody thinks seriously about diffraction in RT/PT?
Replies: 7
Views: 7178

Re: Anybody thinks seriously about diffraction in RT/PT?

Cool to see the same kind of geeks here as myself )) really ) I've been experimenting with diffraction some time ago, and I want to come back to that soon in a prototype I am developing now... Currently I have feeling that is not "orders of magnitude" more rays, but still challenging task, that's tr...
by raider
Wed Aug 15, 2012 9:26 am
Forum: General Development
Topic: A Path tracer
Replies: 11
Views: 11754

Re: A Path tracer

Render the scene with one light only placed in the middle of the floor and make it white, not colored. Let's see how will it look like.
by raider
Tue Aug 14, 2012 10:35 pm
Forum: General Development
Topic: Anybody thinks seriously about diffraction in RT/PT?
Replies: 7
Views: 7178

Anybody thinks seriously about diffraction in RT/PT?

Guys, what you would say about implementing edge diffraction in path tracer? Useless crap? ;) There are quite few works on that topic: Base work: JOSEPH B. KELLER, Geometrical Theory of Diffraction. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, V. 52, No. 2, 1962 no link, sorry, couldn't find it in ope...
by raider
Tue Aug 14, 2012 9:19 pm
Forum: General Development
Topic: A Path tracer
Replies: 11
Views: 11754

Re: A Path tracer

Quite strange sharp "shadows" on the walls. They should not be there in that kind of scene. Seams to me you've overlooked one more bug.
by raider
Tue Aug 14, 2012 4:12 pm
Forum: General Development
Topic: Path Tracing coherence at Giga scales
Replies: 6
Views: 4688

Re: Path Tracing coherence at Giga scales

"Rendering Complex Scenes with Memory-Coherent Ray Tracing" by Matt Pharr comes to mind. Dietger, thanks for the reference. I know that work by Matt, its a very good one, but the method proposed is not suited well for a really large scenes at least not in general case, because to make it effective ...
by raider
Tue Aug 14, 2012 3:59 pm
Forum: General Development
Topic: Path Tracing coherence at Giga scales
Replies: 6
Views: 4688

Re: Path Tracing coherence at Giga scales

I think I have to clarify a couple of things. I meant off-line rendering first of all, like production quality rendering used in movie industry. @graphicsMan: Yes, I'm thinking about straight-up from-the-eye path tracing, heterogenous environment (cloud of different systems, with and without GPUs, c...
by raider
Mon Aug 13, 2012 8:32 pm
Forum: General Development
Topic: Path Tracing coherence at Giga scales
Replies: 6
Views: 4688

Path Tracing coherence at Giga scales

Guys, if you are to implement PT renderer capable to handle huge data sets, how would you address data access incoherence of PT (anything except Metropolis)? Any ideas? Any crazy ideas?
by raider
Sun Aug 12, 2012 9:45 pm
Forum: General Development
Topic: Quasi-random mental images / NVIDIA patent enforcement?
Replies: 11
Views: 9627

Re: Quasi-random mental images / NVIDIA patent enforcement?

Okay, but what if you sell your application form a county where there are no software patents. Just open a website, a legal entity in that county to receive the payments, and that's it... And in the country where you you sell to you just do service/support business. That simple. Or I'm too naive?
by raider
Wed Aug 08, 2012 9:04 pm
Forum: General Development
Topic: Quasi-random mental images / NVIDIA patent enforcement?
Replies: 11
Views: 9627

Re: Quasi-random mental images / NVIDIA patent enforcement?

@toxie: yeah... the Larry's story is very well known to me (since the times I was using BMRT). Of Course that's easy to say now, but by my opinion (with all respect to Larry) it was a strategic mistake to work for your future main competitor having plans to develop your own product. I can image his ...