Search found 2034 matches

by Dade
Wed Jun 26, 2019 9:04 am
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

epilectrolytics wrote:
Tue Jun 25, 2019 4:27 pm
Have started an animation, but when motion blur is activated light tracing does not work :?
It was a general LIGHTCPU, BIDIRCPU and now Hybrid problem. I should have fixed camera motion blur.
by Dade
Wed Jun 26, 2019 8:06 am
Forum: Development
Topic: Transitioning from VRay to LuxCoreRender
Replies: 21
Views: 412

Re: Transitioning from VRay to LuxCoreRender

marcatore wrote:
Wed Jun 26, 2019 7:07 am
What kind of problem should generate that kind of light setup?
It is prone to generate more fire flies because the light source can be sampled only with direct light sampling (while you can use both direct light sampling and direct light hits of the eye path).
by Dade
Tue Jun 25, 2019 9:34 pm
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

In newer LuxCore UI LightCPU engine doesn't trace certain paths. The image in the mirror doesn't seen at all. The version from June 21 of is working fine, the June 25 is no longer. Yes, I removed the tracing of some eye paths, it was there to do some test for BiDir, it is now no more necessary. A p...
by Dade
Tue Jun 25, 2019 6:47 pm
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

Ah ok, the default is 0, I assumed it to be 0.05 because of Dade's example. You are correct, it is a bug, both the code for "path.hybridbackforward.partition" and "path.hybridbackforward.glossinessthreshold" default values is wrong (https://github.com/LuxCoreRender/LuxCore/blob/7817958544de6b0c7255...
by Dade
Tue Jun 25, 2019 6:43 pm
Forum: User Support
Topic: Observed XID 31 on host while running luxmark in Win2014x64 VM.
Replies: 3
Views: 100

Re: Observed XID 31 on host while running luxmark in Win2014x64 VM.

However, when FB = 1024 MB everything works. Should this be expected realizing that the scene may need a certain minimum amount of memory to run? An internal driver error is not expected (i.e. that is an NVIDIA bug) however the scenes ramp up memory usage from lower (LuxBall scene) to the higher (H...
by Dade
Tue Jun 25, 2019 1:23 pm
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

This is a good question. Looks like BiDir behavior. BiDir does not mirror everything, e.g. scattered laser beams, it looks like BiDir only renders with max depth of one in these cases. Is there any good reason? You can not connect a specular path vertex with the eye (or the light), it is just not p...
by Dade
Tue Jun 25, 2019 1:21 pm
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

I've tried it with a bathroom scene (there is a glass shower and a mirror), which looks good. However, all my emissive objects are black. Is it intended or a bug? After disabling Hybrid Back/Foward path tracing, these objects are emissive again. I'm using OCL and partition = 0 (CPU only do light pa...
by Dade
Tue Jun 25, 2019 11:36 am
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

Sharlybg wrote:
Tue Jun 25, 2019 11:19 am
in the hybrid render caustics are not reflected on the cube. is this is the normal behaviour ?
It is the definition of SDS path: you can not see caustics reflected in mirrors(-like).
by Dade
Tue Jun 25, 2019 11:11 am
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

Glossy caustics If this solution replaces caustic cache, I will add the support for glossy caustics too. It currently render only specular caustics like caustic cache. I added the support for rendering glossy caustics. This is normal path tracing: off.jpg and this is Hybrid: on.jpg The threshold to...
by Dade
Mon Jun 24, 2019 10:28 pm
Forum: Development
Topic: Hybrid Back/Forward path tracing (aka BiDir without MIS)
Replies: 74
Views: 1090

Re: Hybrid Back/Forward path tracing (aka BiDir without MIS)

B.Y.O.B. wrote:
Mon Jun 24, 2019 7:41 pm
I'm not sure if this new hybrid back/forward feature would be an exception to this rule?
Nope, it isn't.