Particle System Material preview error #73092

New Issue

Aiden · 2020-01-13T17:47:36+01:00

Aiden commented

2020-01-13 17:47:36 +01:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.87

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: f1aa4d18d4
Worked: (optional)

Short description of error
The material preview viewport fails to display material on any object when there is a hair particle system present using textured objects or collections as the particles. The error is not present in blender 2.80
I do not believe this is a resource issue as blender can display the particle system when you very first create it and with one of the workarounds bellow without and issue.

Exact steps for others to reproduce the error

Create a new file(general template)
Delete all objects
Add 2 planes: Emitter and Particle
Move palne Particle so it doesn't overlap with Emitter
Add diffuse shader with image texture to Particle plane.
Create a hair particle system on the Emitter plane
Set the number of particles to 4000 or higher.
Set the particle under render to be an object and select the Particle Plane.
Change viewport to material shading.
Save the file and close blender.

Re-open file and everything present as all white or all black.

Workarounds
Opening another file without a particle system, previewing material in the viewport and then switching back to the original file without ever closing blender. Alternatively setting the viewport display particles to 0% then back to 100% works sometimes.

More info
Disabling Shader caching in Nvidia control panel did nothing.
A fresh install of blender did not resolve the problem.
The problem persisted from a file created on one machine and opened on another.
Files packed into the .blend and Unpacked made no difference.
Error v4.blend
blender_280_debug_output.txt

[blender_system_info.txt](https://archive.blender.org/developer/F8275906/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F8275907/blender_debug_output.txt) **System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.87 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: `f1aa4d18d4` Worked: (optional) **Short description of error** The material preview viewport fails to display material on any object when there is a hair particle system present using textured objects or collections as the particles. The error is not present in blender 2.80 I do not believe this is a resource issue as blender can display the particle system when you very first create it and with one of the workarounds bellow without and issue. **Exact steps for others to reproduce the error** - Create a new file(general template) - Delete all objects - Add 2 planes: Emitter and Particle - Move palne Particle so it doesn't overlap with Emitter - Add diffuse shader with image texture to Particle plane. - Create a hair particle system on the Emitter plane - Set the number of particles to 4000 or higher. - Set the particle under render to be an object and select the Particle Plane. - Change viewport to material shading. - Save the file and close blender. Re-open file and everything present as all white or all black. **Workarounds** Opening another file without a particle system, previewing material in the viewport and then switching back to the original file without ever closing blender. Alternatively setting the viewport display particles to 0% then back to 100% works sometimes. **More info** Disabling Shader caching in Nvidia control panel did nothing. A fresh install of blender did not resolve the problem. The problem persisted from a file created on one machine and opened on another. Files packed into the .blend and Unpacked made no difference. [Error v4.blend](https://archive.blender.org/developer/F8275933/Error_v4.blend) [blender_280_debug_output.txt](https://archive.blender.org/developer/F8275930/blender_280_debug_output.txt) ![Blender error v4.JPG](https://archive.blender.org/developer/F8275932/Blender_error_v4.JPG)

Aiden commented

2020-01-13 17:47:36 +01:00

Added subscriber: @awils27

blender-admin commented

2020-01-13 17:47:36 +01:00

#70088 was marked as duplicate of this issue

Aiden changed title from ~~Material Preview viewport Particle System Error~~ to Particle System Material preview error

2020-01-13 17:54:19 +01:00

Richard Antalik commented

2020-01-13 23:03:08 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-13 23:03:08 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-01-13 23:03:08 +01:00

I can not reproduce this in 2.83

Is this still an issue with latest build? https://builder.blender.org/download/

I can not reproduce this in 2.83 Is this still an issue with latest build? https://builder.blender.org/download/

Aiden commented

2020-01-14 03:29:09 +01:00

I can still recreate this issue in the blender 2.83 alpha.

Also using smaller resolution textures does not make a difference.

blender_system_info.txt

blender_debug_output.txt

I can still recreate this issue in the blender 2.83 alpha. Also using smaller resolution textures does not make a difference. ![Blender 23.JPG](https://archive.blender.org/developer/F8277291/Blender_23.JPG) [blender_system_info.txt](https://archive.blender.org/developer/F8277288/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F8277289/blender_debug_output.txt)

Aiden commented

2020-01-14 03:39:27 +01:00

Here is a video of the steps I took to create the problem.
Blender Problem v2.mp4

Here is a video of the steps I took to create the problem. [Blender Problem v2.mp4](https://archive.blender.org/developer/F8277338/Blender_Problem_v2.mp4)

Richard Antalik commented

2020-01-14 10:12:45 +01:00

I see you used drag&drop to add image texture. Can you verify, that when you re-open the file, you can see texture in image editor?

Or re-check this with generated texture?

I see you used drag&drop to add image texture. Can you verify, that when you re-open the file, you can see texture in image editor? Or re-check this with generated texture?

Aiden commented

2020-01-14 10:41:34 +01:00

Using a generated texture such as the noise texture node does not create this issue. Setting the viewport so that the image texture opens with the file still causes the issue. Finally manipulating the 3d viewports size in any way seems to fix the problem.

Blender problem v3.mp4

Using a generated texture such as the noise texture node does not create this issue. Setting the viewport so that the image texture opens with the file still causes the issue. Finally manipulating the 3d viewports size in any way seems to fix the problem. [Blender problem v3.mp4](https://archive.blender.org/developer/F8277660/Blender_problem_v3.mp4)

Richard Antalik commented

2020-01-20 10:23:29 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'