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Arnold 4.6.7 GPU BUG

3 REPLIES 3
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Message 1 of 4
RaynerR
295 Views, 3 Replies

Arnold 4.6.7 GPU BUG

When Arnold uses GPU rendering, there will be a bug with light exclusion, which will not illuminate the excluded object, but will leave diffuse and shadow on the object, and rendering transparent objects cannot exclude the background

 

CPU rendering

17583117892SS_0-1703915763689.png 17583117892SS_2-1703915919895.png

 

 

The following is GPU rendering:

17583117892SS_1-1703915782346.png

17583117892SS_3-1703915961796.png

 

 

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3 REPLIES 3
Message 2 of 4
peter_horvath
in reply to: RaynerR

I can reproduce the problem with the shadow, but not with the transparent object. Could you please send me a scene to look at?


// Peter Horvath
// C4DtoA developer
Message 3 of 4
RaynerR
in reply to: peter_horvath

Okay, this is a simple scenario I used for testing. In GPU mode, PNG with transparent channels cannot be rendered

Message 4 of 4
peter_horvath
in reply to: RaynerR

The difference you see in transmission is caused by the Transmit AOVs flag in the standard_surface shader. This flag affects the alpha of the image, and is not supported on the GPU.


// Peter Horvath
// C4DtoA developer

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