Search found 21 matches

by patrickawalz
Sun Nov 11, 2018 8:08 pm
Forum: General Discussion
Topic: CGI tech news box
Replies: 72
Views: 12514

Re: CGI tech news box

"A Simple and Robust Mutation Strategy for the Metropolis Light Transport Algorithm" http://sirkan.iit.bme.hu/~szirmay/paper50_electronic.pdf looks like it could be a simple way to increase the performance with little overhead. im pretty sure this idea the kelemen mlt paper. a variation of this is ...
by patrickawalz
Fri Nov 02, 2018 12:37 pm
Forum: General Discussion
Topic: streamlining luxcore workflow
Replies: 20
Views: 444

Re: streamlining luxcore workflow

luxcore uses opencl, and as Dade has said, there is no plan to implement the ai denier from nvidia any time soon. just my thoughts though: when Dade first started slg( which turned into luxcore) his idea was a brute force gpu monte carlo renderer. it didn't include a denoiser because the idea was to...
by patrickawalz
Sat Oct 13, 2018 12:48 pm
Forum: General Discussion
Topic: CGI tech news box
Replies: 72
Views: 12514

Re: CGI tech news box

Another engine getting multiple scattering GGX is IFX Clarisse v4 "... it doesn't affect render time..." :o (click on image to go to YouTube video) https://i.imgur.com/LUnzpPO.jpg I'm fairly certain this is using the multiple scattering ggx paper that we will be implementing at some point in the ve...
by patrickawalz
Sat Sep 22, 2018 3:38 am
Forum: User Support
Topic: Luxcore renders light through glass very slowly
Replies: 7
Views: 321

Re: Luxcore renders light through glass very slowly

sds paths are notoriously hard to render, and metropolis light transport is a very timed algorithm for this very situation.
by patrickawalz
Sat Aug 25, 2018 3:36 pm
Forum: General Discussion
Topic: CGI tech news box
Replies: 72
Views: 12514

Re: CGI tech news box

B.Y.O.B. wrote:
Sat Aug 25, 2018 1:27 pm
Sorry if this is old news, it's from 2013:
Watertight Ray/Triangle Intersection
pbrt-v3 actually uses this in its triangle mesh intersection code, if you wanted to take a look at some code already using this
by patrickawalz
Mon Aug 20, 2018 2:38 am
Forum: General Discussion
Topic: octane renderes vectron and spectron
Replies: 10
Views: 660

Re: octane renderes vectron and spectron

the method I mentioned also relies heavily on c++ templates Sounds like it would be rather complicated to translate to OpenCL? I haven't honestly looked atthe opencl side of the engine. the way this is accomplished on the CPU side is thru templating which cl doesn't have. the CPU side abstracts out...
by patrickawalz
Sun Aug 19, 2018 11:03 pm
Forum: General Discussion
Topic: octane renderes vectron and spectron
Replies: 10
Views: 660

Re: octane renderes vectron and spectron

polarization and diffraction isn't just good for rendering a CD tho. its also useful for the rendering of rainbows ( Jensen did a paper several years ago about extending mie scattering to accurately render double rainbows), but also for glowing solid objects(wilkie), birifringence in crystals, fluor...
by patrickawalz
Sun Aug 19, 2018 4:44 am
Forum: General Discussion
Topic: octane renderes vectron and spectron
Replies: 10
Views: 660

octane renderes vectron and spectron

octane render recently announced their 2018.1 release features (including something they call "vectron" and "spectron") while spectron is really exciting to me (it includes support four rendering fluorescence and polarization), vectron is merely an implementation of something I saw originally as an ...