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SSS with Evee, swapping slots in Mix Shader produces different result
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Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: Radeon RX550/550 Series ATI Technologies Inc. 4.5.14736 Core Profile Context 20.7.2 27.20.2001.9003

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-08-11 14:14, hash: rBa3af59f8e34b
Worked: (newest version of Blender that worked as expected)

Short description of error
With Evee, SSS works only if it is on the first slot when using a Mix Shader (works normally with Cycles). May be not a real issue but a single limitation, but sometime it may be annoying when editing complex shader.

Exact steps for others to reproduce the error

  1. Open file
  2. Change order of shader node inputs

Event Timeline

Richard Antalik (ISS) changed the task status from Needs Triage to Needs Information from User.Aug 10 2020, 12:10 PM

Please upload sample file.

you can see the issue in this file :

Richard Antalik (ISS) changed the task status from Needs Information from User to Confirmed.Aug 13 2020, 11:53 AM
Richard Antalik (ISS) updated the task description. (Show Details)

Looks like this is the same as T74454: EEVEE ignores SSS when mixing shaders .

Afraid this is a known limitation and we have to close this.
Will close this as a duplicate of T74454.