Search found 21 matches

by joedizzle
Mon Feb 05, 2018 6:03 am
Forum: Links & Papers
Topic: Stackless MBVH Traversal for CPU, MIC and GPU Ray Tracing
Replies: 15
Views: 16986

Re: Stackless MBVH Traversal for CPU, MIC and GPU Ray Tracing

I will definitely, in my TODO list of latest algorithms, https://github.com/joedizzle/CLTracer (I will properly organize the repository soon). - But if you're dealing with platforms that have limited capability in dealing with stacks, the latest algorithm that I found, but with limited public availa...
by joedizzle
Mon Jan 22, 2018 3:56 pm
Forum: Links & Papers
Topic: Stackless MBVH Traversal for CPU, MIC and GPU Ray Tracing
Replies: 15
Views: 16986

Re: Stackless MBVH Traversal for CPU, MIC and GPU Ray Tracing

This is an excellent paper, I'll use it for my GPU tracer. One thing that I've noted, it seems the pseudo-code for BVH2 might lead to infinite loops for a novice implementer who might use the code as it is. I tested the code for a simple square plane which is made up of 2 triangles, meaning all node...
by joedizzle
Mon May 23, 2016 3:44 pm
Forum: General Development
Topic: pbrt-v2 grid code traversal problem
Replies: 2
Views: 12250

Re: pbrt-v2 grid code traversal problem

Corrected handling of -0 values.

Image
by joedizzle
Mon May 23, 2016 3:34 pm
Forum: General Development
Topic: pbrt-v2 grid code traversal problem
Replies: 2
Views: 12250

pbrt-v2 grid code traversal problem

Hello everyone, I've been writing a small path tracer code in java, referencing both SmallVCM and PBRT. I have noticed some problem with the grid accelerator code of pbrt-v2 in which I've referenced their code (complete port to java) and the specific part is the setting up ray for traversal in the g...
by joedizzle
Mon Jul 14, 2014 8:39 am
Forum: General Development
Topic: Epsilon problem in volumetric scattering of particle
Replies: 2
Views: 2490

Re: Epsilon problem in volumetric scattering of particle

Dade,

Thank you for your insight. A form of rejection sampling as one option or reject the path if necessary. Let me do some test and see.
by joedizzle
Sun Jul 13, 2014 1:05 pm
Forum: General Development
Topic: Epsilon problem in volumetric scattering of particle
Replies: 2
Views: 2490

Epsilon problem in volumetric scattering of particle

Hello everyone, I've been grappling with a problem in which I would like your resourceful help. When doing volumetric scattering of a particle in a medium in which boundaries are involved, for example... outside is void and inside is a material, to check if the ray is within the volume, ray-intersec...
by joedizzle
Tue Dec 24, 2013 3:52 pm
Forum: ompf2
Topic: Merry Christmas Ompf2 Members (2013)
Replies: 1
Views: 4272

Merry Christmas Ompf2 Members (2013)

Hope everyone is enjoying their Christmas holiday. To all ompf members, have a happy new year and a prosperous 2014. Let's render those pixels!!! :lol:
by joedizzle
Wed Jul 31, 2013 11:49 am
Forum: Links & Papers
Topic: BSSRDF Importance Sampling
Replies: 1
Views: 4356

BSSRDF Importance Sampling

From Christopher Kulla's website: "A simple importance-sampling method for rendering subsurface light transport described by a BSSRDF on arbitrary geometry without any pre-computation" https://sites.google.com/site/ckulla/home/bssrdf-importance-sampling I've been waiting eagerly for the pu...
by joedizzle
Sat Jan 26, 2013 3:46 pm
Forum: Links & Papers
Topic: Path Space Regularization
Replies: 12
Views: 10104

Re: Path Space Regularization

Hello all, Just in case if someone's interested, here is the new EG2013 paper of mine about how to deal with singularities in the light transport integrand: http://cg.ibds.kit.edu/PSR.php Hope you'll like it. Anton Great work kaplanyan! I'm quite astonished how simple the implementation is, based o...
by joedizzle
Mon Jan 14, 2013 8:47 pm
Forum: General Development
Topic: modified sensor sensitivity equation
Replies: 2
Views: 2498

Re: modified sensor sensitivity equation

Thank you Spectral, Your derivation wasn't making sense in the essence on whether the P was the pixel location on the image plane or whether it belonged to the surface geometry represented by a light vertex. But it is the pixel location which makes sense in the relation of the camera point (eye) and...

Go to advanced search