Maniphest T68423

Alpha transparency not working with in front geometry
Closed, Duplicate
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Assigned To
None
Authored By
Sebastian Villanueva (vr_sebas)
Aug 8 2019, 8:44 PM
Tags
  • BF Blender
Subscribers
Demeter Dzadik (Mets)
Philipp Oeser (lichtwerk)
Sebastian Villanueva (vr_sebas)

Description

System Information
Operating system: Linux-5.2.6-arch1-1-ARCH-x86_64-with-arch 64 Bits
Graphics card: GeForce 8400GS/PCIe/SSE2 NVIDIA Corporation 3.3.0 NVIDIA 340.107

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

Short description of error
I have a mesh set in front of another one to make retopology, If I go to material viewport display and set the color of the mesh with alpha transparency, the in front property will shut off.

Exact steps for others to reproduce the error
Setup a retopology mesh (You will have intersecting geometry) > Object tab > Viewport display > activate in front > now go to Material tab > Viewport Display > Setup a color (any) > change alpha transparency of the color.

.blend file:

Alpha_In_front_bug.blend736 KBDownload

Related Objects

Event Timeline

Sebastian Villanueva (vr_sebas) created this task.Aug 8 2019, 8:44 PM
Demeter Dzadik (Mets) added a subscriber: Demeter Dzadik (Mets).Aug 8 2019, 9:48 PM

I can reproduce, "In Front" option doesn't work when viewport color alpha<1. This feels tricky. So it needs to display in front of everything, but still be "transparent" so it has to show things that are behind it. The use case seems sound though.

Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).Sep 23 2019, 11:55 AM

This has been reported before, see T67839: viewport material transparency faces goes through objects with in front option enabled, will merge these reports...

Philipp Oeser (lichtwerk) closed this task as a duplicate of T67839: viewport material transparency faces goes through objects with in front option enabled.Sep 23 2019, 11:55 AM