Search found 42 matches

by papaboo
Fri Mar 22, 2019 10:53 am
Forum: Visuals
Topic: My little path tracer
Replies: 28
Views: 12646

Re: My little path tracer

If you already have the VNDF sampling from the 2014 paper then implementing the new is trivial. It's the same set of samples with the same PDF, so you just have to copy paste the reference sample method and then you'll have faster GGX sampling :)
by papaboo
Tue Dec 12, 2017 6:18 am
Forum: Visuals
Topic: Glitch Pictures anyone?
Replies: 81
Views: 110599

Re: Glitch Pictures anyone?

SPTD_glitch.png
SPTD_glitch.png (609.76 KiB) Viewed 4258 times
Messed up a transform while cleaning up my implementation of A Spherical Cap Preserving Parameterization for Spherical Distributions. I call it the Blackhole Sun effect. :)
by papaboo
Fri Oct 20, 2017 6:18 am
Forum: Links & Papers
Topic: KuaFu Renderer - UPM
Replies: 1
Views: 3098

Re: KuaFu Renderer - UPM

Looks like a made up term that he doesn't bother to define.
by papaboo
Fri Oct 06, 2017 6:38 am
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10495

Re: Quick Question

Alright. That's basically what I want to do at some point for my own path tracer as well in interactive scenarios. I don't think I've ever read anything about it, since it should be fairly trivial, but http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.155.326&rep=rep1&type=pdf and https://gra...
by papaboo
Tue Oct 03, 2017 7:58 am
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10495

Re: Quick Question

Yea, that really doesn't explain it. Now it sounds a bit more like (path) filtering, but a bounce count in the range of thousands (at least per individual path) is generally a bit silly.
If it's filtering, then there' been a ton of work done in that field.
by papaboo
Mon Oct 02, 2017 7:28 am
Forum: General Development
Topic: Quick Question
Replies: 12
Views: 10495

Re: Quick Question

What exactly do you mean by progressive depth? Render one bounce at a time and defer the next bounces (if any) to the next render call / frame? If so then I haven't seen anything directly related to that, but there are papers that sort the rays pr bounce, so visualizing them as well is fairly trivia...
by papaboo
Wed Jul 19, 2017 1:50 pm
Forum: General Development
Topic: MIS with IBL
Replies: 14
Views: 12132

Re: MIS with IBL

Interesting. I guess I must do it slightly different then, because I just tested mine with MIS and MIS + 3 light RIS (or whatever warped self-rolled version of RIS I'm using) and there is no difference. I don't scale the PDF though when evaluating multiple light sources. I simply leave the light PDF...
by papaboo
Sun Jul 16, 2017 3:30 pm
Forum: General Development
Topic: MIS with IBL
Replies: 14
Views: 12132

Re: MIS with IBL

Out of curiosity, because it sounds like I'm doing something very similar and back when I was investigating it I saw no bias issues, what is the RIS trap? Is RIS conceptually flawed or is it a reoccurring 'gotcha' that you keep forgetting?
by papaboo
Tue Mar 28, 2017 5:59 pm
Forum: General Development
Topic: Google Draco
Replies: 7
Views: 7489

Re: Google Draco

Well if it's lossy then it's irrelevant. The edgebreaker compression is lossless though. It simply compresses the topology / connectivity and I seriously doubt anyone would consider lossy topology compression. High-res-CAD-model-in, swizz-cheese-model-out would be a no go.
by papaboo
Tue Mar 28, 2017 6:00 am
Forum: General Development
Topic: Google Draco
Replies: 7
Views: 7489

Re: Google Draco

The forum isn't dead, just really quiet. Like a lion on the hunt. :) Personally I can say that Draco's in my backlog and will stay there for the foreseeable future, since it doesn't really help my shoot those precious precious rays. :) I doubt that the compression would work for on GPU memory, but i...