Search found 47 matches
- Mon Mar 26, 2018 11:51 am
- Forum: General Development
- Topic: DXR
- Replies: 6
- Views: 4020
Re: DXR
Hello world!! It is really interesting Demo. I liked that a lot! I know that it's running on super expensive hardware, not suited for average gamer but still very interesting. As I guess main reason why it uses Volta GPUs is denoising. also seams like it has separate networks for shadow/glossy refle...
- Tue Feb 06, 2018 11:21 am
- Forum: Visuals
- Topic: My little path tracer
- Replies: 17
- Views: 10734
Re: My little path tracer
Really good results 

- Wed Nov 02, 2016 8:11 am
- Forum: General Development
- Topic: Question about microfacet reverse pdf and SmallVCM
- Replies: 2
- Views: 8366
Re: Question about microfacet reverse pdf and SmallVCM
As I understand the way you calculate microfacet pdf stays the same, you just call pdf function for light subpath where wi and wo are swapped. Inverse pdf calculation should be same as you do in bdpt so you can take pbrt as reference. https://github.com/mmp/pbrt-v3/blob/master/src/integrators/bdpt.c...
- Tue Jul 05, 2016 7:30 am
- Forum: Tools, Demos & Sources
- Topic: Direct Light Integration using MIS
- Replies: 11
- Views: 13197
- Fri Jul 01, 2016 9:21 am
- Forum: Tools, Demos & Sources
- Topic: Direct Light Integration using MIS
- Replies: 11
- Views: 13197
Re: Direct Light Integration using MIS
ah, Thanks



- Fri Jul 01, 2016 8:54 am
- Forum: Tools, Demos & Sources
- Topic: Direct Light Integration using MIS
- Replies: 11
- Views: 13197
Re: Direct Light Integration using MIS
https://lh3.googleusercontent.com/GsHQCGCekDLtU9fKVdhft98SI_qsvPBtNTGnIwn3a8Ocn5vtZhK08NlQvCqq5mHo-3Hnk969gaq8MrLXCqK8oxedZAkkufGMYrPr-PUoIJ6wncRnwlwiRNLgRAfEB6WdkHWKOOl-VtDruvWc-pM3UJT82hiXxm_7er0hi4yZfqWB17ShhC6XSqmHXsYxpwWGX_FX-EaerRCjq048rnxRLtmgvHWp2LIXaEznTnqiHILPDFQiGQj5_AqxGwGn2tWdlHsB6ihAL...
Re: GPU VCM
Great results as always :) Thing which is strange for me in "vcm gpu" video is that photons are very noticeable. Directly visible photons correspond to CD.*L path which should have much lower MIS weight then BPT paths. Am I right? Also in last two videos "BDPT with directional regular...
- Thu Feb 25, 2016 1:19 pm
- Forum: General Development
- Topic: Sweep of a solid angle
- Replies: 2
- Views: 3603
Re: Sweep of a solid angle
You can directly calculate solid angle of spherical rectangle without triangulation.
https://www.solidangle.com/research/egs ... tangle.pdf
https://www.solidangle.com/research/egs ... tangle.pdf
- Thu Feb 04, 2016 9:08 am
- Forum: General Development
- Topic: A better way to sample a sphere (w.r.t. solid angle)
- Replies: 16
- Views: 20101
Re: A better way to sample a sphere (w.r.t. solid angle)
Useful conversion from Theta to Alpha. I also used this for cylindrical lights and good thing is that angle at light sample is Alpha+Theta and you can use it easily to calculate pdfs 

- Fri Jan 15, 2016 9:38 am
- Forum: General Development
- Topic: super fast mbvh4 traversal and triangle intersection
- Replies: 3
- Views: 4746
Re: super fast mbvh4 traversal and triangle intersection
Well done! great improvements :) I tried once multifrusta packet tracing with 2 level BVH and remember that there was problems with packet transformations. If one ray in packet hits leaf of upper BVH you have to transform whole packet to leaf space to continue traversal in lower leaf BVH. As I guess...