An Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node

UE - Rendering - Materials - Apr 20, 2022

Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node. ...

Assertion thrown when connecting a World Position node to the time input of a Panner node then connecting it to Base Color

UE - Rendering - Materials - Apr 20, 2022

Assertion thrown when connecting a World Position node to the time input of a Panner node then connecting it to Base Color. This is a regression. ...

Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes

UE - Rendering - Materials - Apr 19, 2022

Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the preview window did g ...

Forward Shading causes Artifacting on Instanced Meshes

UE - Rendering - Materials - Apr 14, 2022

Forward Shading causes Artifacting on Instanced Meshes. ...

Lighting Channels do not work with Forward Shading

UE - Rendering - Materials - Mar 28, 2022

Param usage bug when using switch params

UE - Rendering - Materials - Mar 28, 2022

From the ticket: In a material instance using the attached master material if A is TRUE and B is FALSE I expect to be able to configure param C in the UI. However param C is shown only when Useswi ...

Refraction can't be set using SetMaterialAttributes node in a material function.

UE - Rendering - Materials - Mar 14, 2022

From the UDN: Currently, I'm using UE5, but I've seen this issue occur in UE4 and I don't see any other posts on UDN about this. Refraction can only be set in material functions if using the MakeMa ...

MaterialExpressionLandscapeLayerBlend with material attributes as inputs, the output material attributes have wrong sizes

UE - Rendering - Materials - Mar 14, 2022

From the UDN ticket: When using MaterialExpressionLandscapeLayerBlend with material attributes as inputs, the output material attributes have wrong sizes: ie output Normal attribute cannot be conve ...