Search found 29 matches

by blibli
Mon Feb 12, 2018 8:44 am
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

1) it works over all the image so it is statistically very unlikely to have a false positive over all the pixels of the complete image. 2) it never stops sampling all pixels, just reduces the probability to sample them so even a false positive does no harm. 3) it works at pixel level instead of til...
by blibli
Sun Feb 11, 2018 5:08 pm
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

@Dade ok, I managed to get it working. It looks really good. When do you start to check convergence (like after 16 samples?) to decide to sample another time or not? Do you do it then on every sample? It is controlled by 2 parameters and the default values are: # Default values batch.haltthreshold....
by blibli
Sun Feb 11, 2018 6:55 am
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

@Dade ok, I managed to get it working. It looks really good. When do you start to check convergence (like after 16 samples?) to decide to sample another time or not? Do you do it then on every sample? If I understand correctly, you use the convergence pass and a probability based on the adaptive str...
by blibli
Sat Feb 10, 2018 1:16 pm
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

ok, thanks for the clarification. Did you measure how much faster it renders with adaptive sampling? At least in my test using CPU, render time and result where the same using adaptive at 0.0 and 0.7. @B.Y.O.B., the long export time seem to only happen with OpenCL. So it could be due to kernel recom...
by blibli
Sat Feb 10, 2018 12:55 pm
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

the default cube with 2 subdiv modifiers at 6 will show the export times at each render. http://pasteall.org/blend/index.php?id=48896 Edit: Actually, on Linux this scene even crashes because it's way to big, sorry. With one subdiv at 5 and the other at 6, it renders and show the long export times on...
by blibli
Sat Feb 10, 2018 8:16 am
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

Somehow, the fireflies are visible in F12 render but not in viewport... but I couldn't find why, it doesn't seem to be clamping. Would be great to have the same clean image on final render.

Edit: nvm, it's just due to some parameter changes not updating the viewport.
by blibli
Sat Feb 10, 2018 8:11 am
Forum: News
Topic: LuxCoreRender v2.0alpha4 released
Replies: 17
Views: 4172

Re: LuxCoreRender v2.0alpha4 released

Hi, just had a bit of time to test the new version. Some feedback: 1) The new sobol sampler rocks :) 2) Clamping evaluation is still much to high in my case, it suggest 134 000 000 for a scene with water made of architectural glass and some sand. 3) It would also be awesome for early testers, if the...
by blibli
Wed Jan 24, 2018 3:36 pm
Forum: Development
Topic: CPU-only features
Replies: 8
Views: 1902

Re: BlendLuxCore Development

It is a HUUUUUUUUUGE task :!: Then let's do it in a LOOOOOOOOONG LONG TIME (in a far far away galaxy). First anyway, we should see if it could make any sense. Iirc, the most used operation in OpenVDB are bitwise operarations right? It seems those can be done pretty fast with CUDA http://docs.nvidia...
by blibli
Wed Jan 24, 2018 12:58 pm
Forum: Development
Topic: CPU-only features
Replies: 8
Views: 1902

Re: BlendLuxCore Development

And maybe on the longterm OpenVDB could be ported to GPU? (I have no Idea here how OpenVDB works) It is a HUUUUUUUUUGE task :!: Then let's do it in a LOOOOOOOOONG LONG TIME (in a far far away galaxy). First anyway, we should see if it could make any sense. Iirc, the most used operation in OpenVDB a...
by blibli
Wed Jan 24, 2018 11:43 am
Forum: Development
Topic: CPU-only features
Replies: 8
Views: 1902

Re: BlendLuxCore Development

It would be much nicer to have a generic "double sided material" which accepts two materials as inputs for front and back, like the mix material. But I don't know if that's possible to do in the material sampling code in case of translucent materials or glass. The material is easy to implement and ...