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Can't see cloud and its shadows when it's behind a transparent object #562

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HeyItsAnjello opened this issue Apr 23, 2024 · 1 comment
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bug Known issue This is an existing MCprep behavior that, while not a bug, is known to be problematic for some users

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@HeyItsAnjello
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Did the issue happen after restarting Blender?

  • Yes, the issue indeed continued after restarting Blender

Check known issues

  • I have checked known issues, and my problem is different

What happened?

I was wondering why my scene's objects appear brighter when it's behind a texture with alpha transparency. Turns out it's because of the cloud affecting my lighting.

I discovered that it was because of the cloud's material, that it's using Light Path node's "Transparent Depth" to hide the part that's being obscured. Using "Transparent Depth" also makes it so that you can't see the clouds (or its shadows) when you're seeing it through a glass block with transparency.

Using Light Path's Transparent Depth:
image

I've tried using backfacing instead and it seemed to fix seeing the clouds through a glass block. However, a different problem occurred that you can now see the clouds behind itself when you're not supposed to.

Using Geometry's Backfacing:
image

What steps are needed to produce the bug?

Click "Create MC Sky" from McPrep and include clouds
Create a glass block with alpha connected to alpha (so it's transparent)
Put the glass block in front of the camera and look at the clouds and its casted shadows

What version of MCprep are you using?

3.5.3

What version of Blender are you using?

3.6.8

@StandingPadAnimations StandingPadAnimations added bug Known issue This is an existing MCprep behavior that, while not a bug, is known to be problematic for some users and removed user-troubleshoot labels Apr 23, 2024
@StandingPadAnimations
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Seems like an issue caused by #463. Tagging @TheDuckCow

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Labels
bug Known issue This is an existing MCprep behavior that, while not a bug, is known to be problematic for some users
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