Search found 46 matches

by Martini
Sun Sep 22, 2019 2:02 pm
Forum: Works in Progress
Topic: Spheres scene challenge
Replies: 40
Views: 6055

Re: Spheres scene challenge

On my cpu 265 samples in HD (720p) took 5 hours :shock: oidn is also not supported :o :( sorry to hear that! Now, just over 1 hour has passed. Still quite noisy at 1K samples, but it might be starting to look OK after about 10K samples (1 CFu for all those who remember "CarbonFlux units"... ;) )
by Martini
Sun Sep 22, 2019 12:53 pm
Forum: Works in Progress
Topic: Spheres scene challenge
Replies: 40
Views: 6055

Re: Spheres scene challenge

DEBIHOOD wrote:
Sun Sep 22, 2019 12:45 pm
Use sarmath scene, visible rays look better and more close to the original scene
Glad I checked :lol: restarting...

For what it's worth, attached is where your scene got to in just over 20 minutes (371 samples)
by Martini
Sun Sep 22, 2019 12:33 pm
Forum: Works in Progress
Topic: Spheres scene challenge
Replies: 40
Views: 6055

Re: Spheres scene challenge

The longer the better ;) But overnight should be enough with your specs😁 Yes, I'll check it in 10 hours when I get up ;) Can someone please render with a lot of samples and full HD and denoiser? Just to make sure it's the correct one - do you want the one you posted, DEBIHOOD, or the one from sarma...
by Martini
Sun Sep 22, 2019 12:07 pm
Forum: Works in Progress
Topic: Spheres scene challenge
Replies: 40
Views: 6055

Re: Spheres scene challenge

DEBIHOOD wrote:
Sun Sep 22, 2019 11:47 am
Can someone please render with a lot of samples and full HD and denoiser?
How many is "a lot" for this scene? I'm happy to let mine go overnight and/or all day tomorrow while I'm at work. I have an i9 9900K overclocked to 5GHz :twisted:
by Martini
Sun Sep 22, 2019 10:14 am
Forum: User Support
Topic: Roughness below 0.01 treated as mirror by PATH engine
Replies: 9
Views: 1339

Re: Roughness below 0.01 treated as mirror by PATH engine

I have remove the work around and the bug in AMD drivers seems to have been fixed. Thanks Dade! :D BTW, had a look at your commit and although I don't understand what the u0 value is, it does seem there is no longer anything stopping roughness == 0, which may cause a divide-by-zero error in the cas...
by Martini
Sat Sep 21, 2019 10:31 pm
Forum: User Support
Topic: Roughness below 0.01 treated as mirror by PATH engine
Replies: 9
Views: 1339

Re: Roughness below 0.01 treated as mirror by PATH engine

I'm seeing the problem only with OpenCL, not with CPU rendering. Are you sure to have the same problem with CPU rendering (don't forget to disable hybrid CPU/GPU rendering when doing the test) ? Well, you are right of course. Apologies, I could've sworn I tested that! :oops: Ah yes, so it seems lim...
by Martini
Sat Sep 21, 2019 1:58 pm
Forum: User Support
Topic: Roughness below 0.01 treated as mirror by PATH engine
Replies: 9
Views: 1339

Roughness below 0.01 treated as mirror by PATH engine

I have gathered some evidence... see the following render from Blender 2.80, LuxCore 2.2rc1: roughness-raw-downsampled.png I checked the output .scn file as well, the exported materials look correct. Material for roughness 0.01: scene.textures.2441963438968Fresnel.type = "fresnelconst" scene.texture...
by Martini
Sat Sep 21, 2019 2:50 am
Forum: News
Topic: LuxCoreRender v2.2rc1 released
Replies: 4
Views: 2029

Re: LuxCoreRender v2.2rc1 released

This is fantastic, thanks Dade! I have noticed there is still a bit of discrepancy in the BIDIRCPU shading as camera angle increases (less so after the fix, but still some) compared with PATH*, but I have yet to find the time to post some definitive sample images and a scene. Let it rest for now unt...
by Martini
Thu Sep 12, 2019 6:12 pm
Forum: User Support
Topic: BiDir darkening surface at glancing angles
Replies: 3
Views: 496

Re: BiDir darkening surface at glancing angles

Thank you Dade!

We can now rely on BiDir being the "reference" renderer once again :lol:
by Martini
Wed Sep 11, 2019 6:16 pm
Forum: User Support
Topic: BiDir darkening surface at glancing angles
Replies: 3
Views: 496

Re: BiDir darkening surface at glancing angles

Additional test images. Not recommended for mobile users as they are 9.5 MB files and rendered at 2160p. Shows the issue with also reflective surfaces, bump mapping and textures. Not really all that useful in helping with the issue but it's what I'm working on. Both images rendered with stop conditi...