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Hulk
03-15-2019, 04:17 AM
I was checking out the demo content and wasn't able to render the clouds_04 scene with alpha channel.
It always shows the alpha completely white.
Do I have to check a box somewhere or is it a bug?

thx

MonroePoteet
03-15-2019, 12:25 PM
In the Render Properties=>Volumetrics panel, Fog Type is set to Linear with a max distance of ~14 meters. This means there isn't anything in the scene that would show the Background (i.e. a non-white alpha channel). If you turn off the Fog, you get a good alpha channel for only the cloud:

144429 Render RGB with Fog disabled

144430 Render Alpha with Fog disabled

mTp

Hulk
03-18-2019, 02:13 AM
Great, thank you!