opening a scene from 2.8 results in many of the materials not rendering. #68754

New Issue

michael campbell · 2019-08-17T05:44:20+02:00

michael campbell commented

2019-08-17 05:44:20 +02:00

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: 2.81 (sub 2), branch: master, commit date: 2019-08-16 18:51, hash: e8ffe25eb1
Worked: (optional)

Short description of error
opening a scene from 2.8 results in many of the materials not rendering.

Exact steps for others to reproduce the error
open a 2.8 scene which has multiple materials assigned to one mesh. The materials are still present in the materials panel, but to get them to show up you have to go into edit mode on each object and then use the material list to select faces and then click assign. Theh correct faces are selected when you click select, so I'm not sure why you would need to re-assign them again.

**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: 2.81 (sub 2), branch: master, commit date: 2019-08-16 18:51, hash: `e8ffe25eb1` Worked: (optional) **Short description of error** opening a scene from 2.8 results in many of the materials not rendering. **Exact steps for others to reproduce the error** open a 2.8 scene which has multiple materials assigned to one mesh. The materials are still present in the materials panel, but to get them to show up you have to go into edit mode on each object and then use the material list to select faces and then click assign. Theh correct faces are selected when you click select, so I'm not sure why you would need to re-assign them again.

michael campbell commented

2019-08-17 05:44:20 +02:00

Added subscriber: @3di

michael campbell commented

2019-08-17 06:01:05 +02:00

quicker way to fix is to select all meshes and then go in and back out of edit mode. No assignments needed that way, as soon as you come out of edit mode then everything is back as it should be.

Martin Capitanio commented

2019-08-17 07:55:45 +02:00

Added subscriber: @capnm

Martin Capitanio commented

2019-08-17 07:55:45 +02:00

I can reproduce this with the attached file:
7ba2720a70

Switch to solid view port shading mode.
Toggle the objects interaction mode between edit and object [tab tab].
Switch to look dev view port shading mode.

The entire mesh will now be displayed using the last material slot.

Toggle the objects interaction mode between edit and object [tab tab].

Fixes the issue.

multiple-materials.blend

I can reproduce this with the attached file: 7ba2720a70 * Switch to solid view port shading mode. * Toggle the objects interaction mode between edit and object [tab tab]. * Switch to look dev view port shading mode. **The entire mesh will now be displayed using the last material slot.** * Toggle the objects interaction mode between edit and object [tab tab]. Fixes the issue. [multiple-materials.blend](https://archive.blender.org/developer/F7668652/multiple-materials.blend)

Philipp Oeser commented

2019-09-20 13:05:54 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-09-20 13:05:54 +02:00

This looks like a duplicate of #68826 (eevee not showing multi material object properly when blend is loaded until mesh is updated), will merge these reports...

Philipp Oeser commented

2019-09-20 13:08:43 +02:00

(this report is a bit older, there have been related commits, but the issue is still not solved entirely...)

Philipp Oeser commented

2019-09-20 13:08:50 +02:00

Closed as duplicate of #68826

Philipp Oeser closed this issue

2019-09-20 13:08:50 +02:00

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opening a scene from 2.8 results in many of the materials not rendering. #68754