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Alpha Blend transparency glitches with volume
Closed, ResolvedPublic


System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.71

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-06-30 19:51, hash: rBbbb3500c9716
Worked: no idea if it ever did

Short description of error
I have this smoke volume in the scene that seems to appear "reflected" on a place in the scene that has no smoke.

after trouble shooting, in the place where the ghost smoke appears there is a plane with a semi transparent texture (that little blue halo you can see in the back is a texture that has a gradient that makes it transparent: the blend mode is set to alpha blend, and the shadow to none, backface culling is off, show backface is off, and screen space refraction is off too".

Exact steps for others to reproduce the error
Open the provided file :

if there is no smoke (but there should be), just go bake all simulations, you'll see the smoke and the ghost smoke described in the pictures above.

if anything more hit me up!