Emissive Shader Animated Strength Crash #54478

New Issue

Skylyn Bilén · 2018-03-31T17:56:38+02:00

Skylyn Bilén commented

2018-03-31 17:56:38 +02:00

System Information
Operating system and graphics card
Windows 10
Nvidia GTX 1060 6GB
1333MHz RAM 20 GB
AMD FX 9590 @ 4.8GHz

Blender Version
Broken: 2.79 Hash: 5bd8ac9

Short description of error
Blender crashes when animating an emissive shader's strength.

ERROR: Python context internal state bug. this should not happen!
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
Mat Crash Test 1.blend
Simply select an object with the animated material, go to the materials tab, and scrub the Dope Sheet like a madman, over the whole animation length, until blender crashes. It might need the blender window to be defocused once or twice. it might also take its golly sweet time.

here's a console screenshot before the crash

**System Information** Operating system and graphics card Windows 10 Nvidia GTX 1060 6GB 1333MHz RAM 20 GB AMD FX 9590 @ 4.8GHz **Blender Version** Broken: 2.79 Hash: 5bd8ac9 **Short description of error** Blender crashes when animating an emissive shader's strength. ERROR: Python context internal state bug. this should not happen! **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps [Mat Crash Test 1.blend](https://archive.blender.org/developer/F2558724/Mat_Crash_Test_1.blend) Simply select an object with the animated material, go to the materials tab, and scrub the Dope Sheet like a madman, over the whole animation length, until blender crashes. It might need the blender window to be defocused once or twice. it might also take its golly sweet time. here's a console screenshot before the crash ![image.png](https://archive.blender.org/developer/F2558747/image.png)

Skylyn Bilén commented

2018-03-31 17:56:38 +02:00

Added subscriber: @skyliner369

Brecht Van Lommel commented

2018-04-01 07:25:29 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2018-04-01 07:25:29 +02:00

Please try Blender 2.79b and the latest build from https://builder.blender.org/download.
If that doesn't help, do you have a 3D viewport render running or preview render in the material properties while this crashes?

* Please try Blender 2.79b and the latest build from https://builder.blender.org/download. * If that doesn't help, do you have a 3D viewport render running or preview render in the material properties while this crashes?

Skylyn Bilén commented

2018-04-01 20:39:20 +02:00

Solid render. it doesn't matter the kind of render. and I'll see if I forgot to update.

Skylyn Bilén commented

2018-04-01 20:47:18 +02:00

I should clarify, it doesn't matter the viewport mode, but material preview in the properties tab seems to have an effect, however this isn't certain.

Skylyn Bilén commented

2018-04-01 21:21:03 +02:00

now the dope sheet is chugging... I think the dope sheet doesn't like material animation, as long as the animated material keyframes aren't on the sheet, everything is fine. introduce a few, and there's chugging. Might be related somehow to the state error from earlier

Philipp Oeser commented

2018-04-11 16:02:55 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-04-11 16:02:55 +02:00

since some new information is given, I'll reset to "Needs triage", will check in a bit

Philipp Oeser commented

2018-04-19 14:06:24 +02:00

Cant get it to crash, one thing you didnt mention: Have you tried 2.79b? Or the latest build from https://builder.blender.org/download?

Skylyn Bilén commented

2018-04-19 14:52:36 +02:00

It no longer crashes, however a relatively small amount of key frames on the dope sheet starts to chug considerably if materials are animated. However, upon choosing animated objects without animated materials, the same number of key frames will run much smoother.

Philipp Oeser commented

2018-04-20 09:21:55 +02:00

Changed status from 'Open' to: 'Resolved'

Philipp Oeser closed this issue

2018-04-20 09:21:55 +02:00

Philipp Oeser self-assigned this 2018-04-20 09:21:55 +02:00

Philipp Oeser commented

2018-04-20 09:21:55 +02:00

reg. the dopesheet performance and animated materials: Is this still with the Material Preview (or any other rendering view) open? [that would be expected behaviour then].

Anyways, closing this report since it seems to be fixed, feel free to open another report on the performance issue.

reg. the dopesheet performance and animated materials: Is this still with the Material Preview (or any other rendering view) open? [that would be expected behaviour then]. Anyways, closing this report since it seems to be fixed, feel free to open another report on the performance issue.

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Emissive Shader Animated Strength Crash #54478