Object Transparency Error #67432
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Reference: blender/blender#67432
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System Information
Operating system: Windows 10
Graphics card: GTX 750 Ti
Blender Version
Broken: 2.80 Release Candidate 2
Worked: (optional) Test
Short description of error
The transparent object is not visible through another transparent object.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Added subscriber: @123456789-2
Added subscriber: @brecht
Please provide a .blend file and exact steps to reproduce the problem.
test on transparency v1.blend
any update on this bug plz ?
Added subscriber: @machieb
Can confirm, transparent objects are not visible through other transparent objects is EEVEE.
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX TITAN X/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Added subscriber: @SpectreFirst
As far as I remember, somewhere it was mentioned that Eevee supports only one level of screen-space refraction which probably means that this is how it is supposed to work for now. If you need several overlapping transparent objects in Eevee, you could use Principled BSDF, Alpha instead of Transmission and Alpha Blend or Alpha Hashed for Blend and Shadow Mode. You won’t get a nice refraction effect but Alpha don’t require SSR so at least you will be able to see through your objects. It also seems that objects with Alpha transparency are still visible through screen-space refraction so my guess is that it should be possible to mix these two.
Added subscriber: @ZedDB
Changed status from 'Open' to: 'Archived'
As mentioned, eevee only handles one refraction event: https://docs.blender.org/manual/en/dev/render/eevee/limitations.html#screen-space-refraction
So the others are left out. This is not a bug but a limitation of the eevee render engine.