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No way to viewport render wireframe against transparent background in 2.80
Closed, ResolvedPublic


System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.17

Blender Version
Broken: version: 2.80 (sub 51), branch: master, commit date: 2019-03-22 19:36, hash: rB967364dc3eb7

Short description of error
In 2.79, you could be in wireframe mode in a 3dview and set the OpenGL Render Options -> Alpha Mode to Transparent and do an OpenGL render and get the wires over transparency.

In 2.80 as per discussion in you don't seem to be able to do this any more. Selecting the Workbench renderer and setting the Alpha Mode to Transparent does not capture the wireframe mode of course, and we can't find a way to get the viewport render to use transparency.

Event Timeline

Sebastian Parborg (zeddb) triaged this task as Confirmed, Medium priority.

It seems like this is an issue with wireframe mode. I the other modes I get transparent background is if set the alpha mode to transparent in the render settings.

This can currently be worked around by setting the mode to solid and then activating the wireframe overlay and setting the object color alpha to zero.