@Tina_Wisdom Hi,
Id like to report a bug where if:
r.OIT.SortedPixels=True
(Order independent translucency is enabled)
Shaders cant be compiled for SM6
C:\Program Files\Epic Games\UE_5.7\Engine\Shaders\Private\BasePassPixelShader.usf(2460,42): Shader TBasePassPSFNoLightMapPolicySkylight, Permutation 2, VF FLocalVertexFactory: /Engine/Private/BasePassPixelShader.usf:2460:42: error: use of undeclared identifier 'AdjustedDualBlendAdd' AddOITSample(uint2(In.SvPosition.xy), AdjustedDualBlendAdd, AdjustedDualBlendMul, MaterialParameters.ScreenPosition.w); ^
[SM6] C:\Program Files\Epic Games\UE_5.7\Engine\Shaders\Private\BasePassPixelShader.usf(2460,64): Shader TBasePassPSFNoLightMapPolicySkylight, Permutation 2, VF FLocalVertexFactory: /Engine/Private/BasePassPixelShader.usf:2460:64: error: use of undeclared identifier 'AdjustedDualBlendMul' AddOITSample(uint2(In.SvPosition.xy), AdjustedDualBlendAdd, AdjustedDualBlendMul, MaterialParameters.ScreenPosition.w);
Thease seem to be the main problem:
undeclared identifier ‘AdjustedDualBlendAdd’
undeclared identifier ‘AdjustedDualBlendMul’
This crashes the editor when a translucent material is in scene.
Edit:
Found out that when upgrading older UE project to 5.7 this line in DefaultEngine.ini:
r.Substrate.ProjectGBufferFormat=0
wont get automatically added and it seems that the default is something different from 0 - this causes all kinds of problems with shader compilation. New projects have this line in the .ini by default.
Edit2:
The above solves the compilation errors but the engine still crashes when a translucent objects comes in view.