Community
Arnold General Rendering Forum
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

AiStandardSurface weird diffuse when colored reflections

4 REPLIES 4
Reply
Message 1 of 5
maxtarpini
693 Views, 4 Replies

AiStandardSurface weird diffuse when colored reflections

297-aistandarsurface-weird-diffuse-albedo.png

296-aistandarsurface-weird-diffuse.png

From where the pinkish color comes from ?

And why diffuse_albedo has falloff ?

Eventually, if there's an albedo channel ... shouldn't be [also a] direct and indirect _raw_ AOVs (ie. no colors applied there) to be able to do something with that albedo later in comp ?

(Settings are those in the screenshots plus a simple arealight on top)

Tags (1)
Labels (1)
4 REPLIES 4
Message 2 of 5
lee_griggs
in reply to: maxtarpini

If you change the Base Color, it should give you the correct results.

299-base-color.jpg

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 3 of 5
maxtarpini
in reply to: maxtarpini

I think these are plain bugs. albedo and diffuse_albedo are inconsistent. and depending on what color is the base color other weird things can happen.

for example :

300-aiss-weird-003.png

301-aiss-weird-004.png

more a kind of bug report than a real question.

Message 4 of 5
Slava_91
in reply to: maxtarpini

311-shot-171016-172155.png

I have same problem on mtoa 2.0.2.3, but not only with specular, I have bug with clearcoat color...

308-shot-171016-171025.png

309-shot-171016-171043.png

310-shot-171016-171522.png

Message 5 of 5
maxtarpini
in reply to: maxtarpini

yep it's everywhere.. even on the arnold maya blinn/phong etc.. not only AiStandardSurface.

However implementing our own materials .. it doesn't look like it's from the SDK or internal arnold AOVs buffers as here it works correctly.. it just looks arnold materials are a bit over-tweaked. Can't remember right now but I think there's also an inconsistency with metalness where diffuse/specular albedos are kinda switched.

Eventually, as I already said I can't see the point in providing albedos if then you don't provide build-in raw AOVs (that's a request 🙂

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report