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Fixed in 2020.1.X
Fixed in 2019.2.X, 2019.3.X
Votes
14
Found in
2018.3.0b7
Issue ID
1094991
Regression
Yes
Editor is lagging when modifying material properties
How to reproduce:
1. Open attached "ForgottenPlayhouse" project
2. Select "cardboardwall1" material under Assets/Materials/Cardboard/CardboardWall1
3. In Inspector change color of the material
Expected result: Color(or any other property) is changed instantly and Editor does not lag
Actual result: Editor is lagging after every property change
Reproduced with: 2018.3.0b7, 2019.1.0a10
Does not reproduce with: 2018.3.0b6 (performance is only barely slower), 2018.2.17f1 and lower (performance is as expected)
Notes: Changing the Shader from HDRP to any other still reproduces the issue.
Comments (7)
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Peter77
Sep 05, 2019 16:28
Related forum post:
https://forum.unity.com/threads/case-1094991-bump-custom-shader-gui-makes-scene-editing-impossible.738944/
julian-moschuering
Sep 03, 2019 09:50
Or just cache it. I hacked around this by skipping CreateCustomShaderEditor and replacing it with a cached one.
JohnPontoco
Jun 21, 2019 16:28
The cause of this bug is that the ShaderGUIUtility.ExtractCustomEditorType() function is looping through all types in the loaded assemblies, even though it's only looking for a specific type name.
Fix: Swap this loop with Assembly.GetType() which is O(1) for a given type name.