Search found 3 matches

by T.C. Chang
Wed Jan 11, 2017 3:57 pm
Forum: General Development
Topic: PBRT-v3 (the book) wrong microfacet BTDF?
Replies: 3
Views: 1687

Re: PBRT-v3 (the book) wrong microfacet BTDF?

Thanks for your suggestion! But I'm not sure if it is okay to multi-post on several places since I already have posted a GitHub issue on PBRT-v3's repository. Actually I'm more confused than before after digging into this problem further. It looks like non of PBRT-v3, LuxRender, Mitsuba, Tungsten ar...
by T.C. Chang
Tue Jan 10, 2017 11:19 am
Forum: General Development
Topic: PBRT-v3 (the book) wrong microfacet BTDF?
Replies: 3
Views: 1687

PBRT-v3 (the book) wrong microfacet BTDF?

Recently I'm implementing path tracing with next event estimation and encounters a nasty bug: refracted radiance is higher than my path traced reference. Then I discovered that the paper by Walter et al. (Microfacet Models for Refraction through Rough Surfaces) writes the microfacet BTDF formula wit...
by T.C. Chang
Thu Jan 05, 2017 5:58 pm
Forum: Visuals
Topic: Glitch Pictures anyone?
Replies: 75
Views: 79347

Re: Glitch Pictures anyone?

After a bad refactor of my simple path tracer :shock:
bad refactor cornell box.png
bad refactor cornell box.png (427.77 KiB) Viewed 2894 times

Go to advanced search