Search found 164 matches

by graphicsMan
Thu Aug 16, 2012 10:44 pm
Forum: General Development
Topic: Anybody thinks seriously about diffraction in RT/PT?
Replies: 7
Views: 7152

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

yeah, not impossible :) But it would be interesting to see this in real 3D scenes... I gotta wonder at the overhead.
by graphicsMan
Thu Aug 16, 2012 4:49 pm
Forum: General Development
Topic: Anybody thinks seriously about diffraction in RT/PT?
Replies: 7
Views: 7152

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

I think it's not so much that people haven't thought about it, but more that no "tractable" solutions have been found. Most of us are in the business (or pleasure) of generating images that are rich and detailed and already have expensive simulated effects like GI and caustics, but we also want our ...
by graphicsMan
Tue Aug 14, 2012 4:35 pm
Forum: General Development
Topic: Path Tracing coherence at Giga scales
Replies: 6
Views: 4669

Re: Path Tracing coherence at Giga scales

Yeah, so you'll need some kind of high level accel structure on your scene period. I used a kd-tree and Matt Pharr used a uniform grid. You'll want to make as much use as possible of the memory in each system (both main memory and GPU memory). If you already have LOD, this could help a lot, but if n...
by graphicsMan
Tue Aug 14, 2012 1:52 pm
Forum: ompf2
Topic: Spam
Replies: 33
Views: 37980

Re: Spam

ouch ;)
by graphicsMan
Mon Aug 13, 2012 8:46 pm
Forum: General Development
Topic: Path Tracing coherence at Giga scales
Replies: 6
Views: 4669

Re: Path Tracing coherence at Giga scales

Straight-up from-the-eye path tracing? What's your hardware? How big are the scenes? Is the data mostly geometry or texture? Or something else?
by graphicsMan
Sat Aug 11, 2012 3:07 pm
Forum: General Development
Topic: Metropolis PT vs metropolis BDPT
Replies: 4
Views: 3601

Re: Metropolis PT vs metropolis BDPT

In order for Metropolis to help, it needs to first find useful paths. It's easier to do this with BDPT, so I would guess even with Veach-style metropolis, it would be beneficial (of course, I'm sure you could construct scenes where the opposite is true).
by graphicsMan
Wed Aug 01, 2012 5:40 pm
Forum: Scratchpad
Topic: SIGGRAPH anyone?
Replies: 4
Views: 8113

Re: SIGGRAPH anyone?

will be there this year.
by graphicsMan
Tue Jul 31, 2012 5:03 pm
Forum: General Development
Topic: Quadrics kinda sorta work for real time
Replies: 34
Views: 24201

Re: Quadrics kinda sorta work for real time

My vote (not that I get one ;) ) would be Catmull Clark. I think you can get this data from Blender, and perhaps Maya (though I'm unsure if this is straight-up CC SubD). Also, people have done research on intersecting these via on-the-fly subdivision, and it would be interesting to see how pre-refin...
by graphicsMan
Mon Jul 30, 2012 8:54 pm
Forum: General Development
Topic: Quadrics kinda sorta work for real time
Replies: 34
Views: 24201

Re: Quadrics kinda sorta work for real time

Sure. I look forward to seeing where it goes.
by graphicsMan
Mon Jul 30, 2012 7:05 pm
Forum: General Development
Topic: Quadrics kinda sorta work for real time
Replies: 34
Views: 24201

Re: Quadrics kinda sorta work for real time

Sounds interesting. Is there software that will model using Zwart-Powell SubDs? Does it support creases?