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Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 7:41 am
by Dade
I may have been able to reproduce the problem, with bump map:

bump.jpg

without:

no-bump.jpg

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 7:55 am
by lacilaci
Dade wrote: Fri Aug 23, 2019 7:27 am
provisory wrote: Thu Aug 22, 2019 5:47 pm
Dade wrote: Thu Aug 22, 2019 5:15 pm ...it would be a lot easier to investigate with a simpler scene.
Here is a simple test scene.
I get this rendering with glossy translucent:


t.jpg


and this with matte:


m.jpg


where is the problem in glossy translucent ?
I modified provisory's scene to better show the problem

just enable/disable bump to see what's up

bump on:
bump.png
bump off:
nobuimp.png
as you see translucency is not working with bump

scene
translucent-vs-bump_mod.blend
(2.73 MiB) Downloaded 218 times

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 8:28 am
by provisory
I thought it was quite visible in the original scene... :?

Without bump:
t-v-b-nobump.jpg
t-v-b-nobump.jpg (8.29 KiB) Viewed 4466 times

With bump:
t-v-b-bump.jpg
t-v-b-bump.jpg (10.54 KiB) Viewed 4466 times

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 8:50 am
by Dade
I should have fixed the problem. The shadow terminator fix was cutting transmitted light. It wasn't a glossy translucent specific problem but something affecting all diffuse/glossy and transmitting materials.

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 9:21 am
by provisory
Thank you!
I'll test it when it's released.

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 10:45 am
by kintuX
Dade wrote: Fri Aug 23, 2019 8:50 am I should have fixed the problem. The shadow terminator fix was cutting transmitted light. It wasn't a glossy translucent specific problem but something affecting all diffuse/glossy and transmitting materials.
Looks fine now.
Image

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 12:06 pm
by provisory
Hmm, it doesn't work for me, and the file dates in the build are yesterday morning...

I think the deployment has failed:
https://dev.azure.com/LuxCoreRender/Lux ... mentId=396

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 12:39 pm
by Dade
provisory wrote: Fri Aug 23, 2019 12:06 pm Hmm, it doesn't work for me, and the file dates in the build are yesterday morning...

I think the deployment has failed:
https://dev.azure.com/LuxCoreRender/Lux ... mentId=396
The upload of files to GitHub failed, I re-deployed the files and now they should be all up to date.

Re: glossy translucent and bump

Posted: Fri Aug 23, 2019 1:24 pm
by provisory
It works fine now!
Dade wrote: Fri Aug 23, 2019 8:50 am It wasn't a glossy translucent specific problem but something affecting all diffuse/glossy and transmitting materials.
With the previous version I could reproduce the problem with rough glass too, but that is also good now.