Incorrect alpha?

Software Support & Suggestions
1

Hello,

I can’t to fix this issue: the alpha channel in the rendered images are smaller that shoud be. I attached the image.
Left side - the pure render. Right side - image after loading selection using alpha channel. If I understand left and right parts should be 100% identical. But in the right side image has a less details. And than more transparent smoke than more details are missing.
I tried straight and premultiplied alpha and all export formats (exr, png, tga) but can’t fix it.

Can you help me please?

Smoke_01_87 copy
Smoke_01_87 copy2066×1059 187 KB

2

Hi John,

Can you send me this file? These should be much closer to each other and we may need to look into our minimum values for our Alpha channel

3

Hi Will,

I can’t find an option to attach file in the post. So this is a link for it:
test file for opacity

Thank you in advance

4

Hey sorry for the delay, I made an issue about this and we’ll hopefully be looking into it soon. But you’re right that it’s contracting the smoke a bit, idk how much of this is unavoidable at this time.

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