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Denni Mareta avatar image
Denni Mareta asked ·

Emission channel weird issue C4D

Hi guys I've updated to 2.2.1 and now always getting strange result in my emission aov. The mesh lights are surrounded by noisy specular highlights and I have no idea where it's coming from as I don't have any emission on this meshes. Also there is no problem when I preview the channel aov in ipr, this problem only appears when I render to tiff/exr. Any ideas?!

c4dtoa
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Peter Horvath avatar image
Peter Horvath answered ·

Seems to be a bug, indeed, we're looking into it.

Weirdly if you create a custom AOV with the light path expression C[LO], that seems to work.


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Peter Horvath avatar image
Peter Horvath answered ·

I have found the bug, it will be fixed in the next release.

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Denni Mareta avatar image
Denni Mareta answered ·

@Peter Horvath Awesome! That worked. Thank you!

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Denni Mareta answered ·

@Stephen Blair Any solution, man?

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Denni Mareta avatar image
Denni Mareta answered ·

I was digging in the problem and found out that it's a transmission channel in standart_surface is causing the trouble. The transmission is catching the light from a nearby sources and transferring it to emission channel! Damn, have no idea whats that, seem like a bug.

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Denni Mareta answered ·
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Denni Mareta answered ·

I have some weird thing that looks like spec highlights in emission channel, but I have no idea what's that.

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Stephen Blair answered ·

You have specular highlights in the emission AOV? I can't repro that, can you post a simple example scene or ass file?

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