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Maniphest T68736

viewing the output of individual shader nodes has broken
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Description

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.70

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Worked: (2.79b)

Short description of error
when soloing individual shader nodes by using a viewer, tweaking the value of a node, for example a color ramp, results in the model being whitewashed, after which point changing the values has no further effect.

Exact steps for others to reproduce the error
see video and blend file attached:

viewing the output of individual nodes doesnt work.blend32 MBDownload

Revisions and Commits

rB Blender
rBa2cc855dbac9 Fix T68736 EEVEE: Loose subsurface node breaks shader

Related Objects

Event Timeline

michael campbell (3di) created this task.Aug 16 2019, 4:46 PM
michael campbell (3di) added a comment.Aug 16 2019, 4:58 PM

rndmnm added a subscriber: rndmnm.Aug 16 2019, 7:31 PM

Huh, it seems to be similar to T64958.
I can reproduce it with your file, and also with a default scene with a subsurface shader added.

SubsurfaceBugTest.blend607 KBDownload

The problem also goes away in your file once you remove the subsurface scattering node.

rndmnm added a subscriber: Clément Foucault (fclem).Aug 16 2019, 7:39 PM

I believe @Clément Foucault (fclem) fixed it last time?

Clément Foucault (fclem) claimed this task.Aug 16 2019, 8:30 PM
Clément Foucault (fclem) changed the task status from Unknown Status to Resolved by committing rBa2cc855dbac9: Fix T68736 EEVEE: Loose subsurface node breaks shader.Sep 24 2019, 4:12 PM
Clément Foucault (fclem) added a commit: rBa2cc855dbac9: Fix T68736 EEVEE: Loose subsurface node breaks shader.
noki paike (amonpaike) added a subscriber: noki paike (amonpaike).Sep 24 2019, 6:43 PM
In T68736#754508, @michael campbell (3di) wrote:

@Clément Foucault (fclem)
I don't know if it is related, but the similar problem (same bug?) has also emerged on my gpu (radeon HD crap driver :P ) with some shaders ..

https://developer.blender.org/T70146#781976

Clément Foucault (fclem) merged a task: T67646: eevee - unconnected Subsurface Scattering node makes whole material not working.Sep 25 2019, 4:02 PM
Clément Foucault (fclem) added subscribers: Jurek (solartistic), Philip Holzmann (Foaly), Joseph Brandenburg (TheAngerSpecialist) and 4 others.