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Johnny Grilo avatar image
Johnny Grilo asked ·

Emission not supported??

Isn't this property supported?

Win10 Rtx2070

Arnold 5.4.1.0

MtoA 3.3.0.

https://docs.arnoldrenderer.com/display/A5AFMUG/Emission

CPU

GPU

selfillum1.jpg (4.8 KiB)
selfillum-gpu.jpg (5.7 KiB)
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Johnny Grilo avatar image
Johnny Grilo answered ·

solved- Ok I've just confirmed, on the gpu I needed to use alpha as luminance, versus CPU don't need to use it....

that was it :)

Thank you all

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Could you possibly supply us with the texture file (for internal testing only)?

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I've posted the image at the end of this thread

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Johnny Grilo avatar image
Johnny Grilo answered ·

solved- Ok I've just confirmed, on the gpu I needed to use alpha as luminance, versus CPU don't need to use it....

that was it :)

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Johnny Grilo avatar image
Johnny Grilo answered ·

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Johnny Grilo avatar image
Johnny Grilo answered ·

I if I re created the map, get the same mistake, I reckon It maybe be an alpha channel error, that is managed differently between the CPU/GPU versions
Can' test it know as everytime I play with it also get maya crashes

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Lee Griggs avatar image
Lee Griggs answered ·

If you re-create it do you get the same issue? What does the log file say?

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Johnny Grilo avatar image
Johnny Grilo answered ·

Also emission works, just this map its broken using GPU

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Johnny Grilo avatar image
Johnny Grilo answered ·

A brand new map works,

Need to create a new version of it.

Broken or invalid files: 1
/headphones_low_1002_Emissive.tx -----------------------------------------------------------------------------------

But why on CPU I get them to work??

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Lee Griggs avatar image
Lee Griggs answered ·

It works fine here. Does it work if you just add it to a sphere in a new scene? If so, try to hide everything in the scene except the emitting object to try and identify the cause.

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Christoph Schaedl avatar image
Christoph Schaedl answered ·

It does work here on GPU.

I have glowing spheres in my current scene.

Are you using a texture to drive the shader?

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