Unreal Engine Issues

Camera Position Node in Light Function Materials does not function once applied to a light

In the material editor, the preview will change with the camera position. Similar to [Link Removed] though the light will still emit when applied. Investigating Regression info ...

DX12/SM6 Sampler Counts increased for empty materials between 5.1 and 5.2

While not a major issue in and of itself, this can cause considerable headaches for materials where sampler counts in 5.1 were at 15/16 or 16/16 and when upgrading to 5.2 are now exceeding the built ...

DebugScalarValues floors floats in certain circumstances, giving the incorrect value when a floating point error occurs

Material Editor Crash occurs on mathematical operation node receiving invalid input from a Texture Object

Converting Texture Objects to Texture Object Parameters loses reference to texture

This issue can cause some workflow problems when a user is creating materials using texture objects, then decides to expose those objects as parameters. It can be worked around if the user is aware ...

Unable to select object when using DistanceToNearestSurface node for Opacity Mask in Masked Material

From observations, this seems to be related to how the mesh selection works, and may be making the pixel under the mouse masked away. Adding a value >= 0.5 between the clamp and the Opacity Mask out ...

Standalone Material Function Instance creation results in crash

Coming from UDN https://udn.unrealengine.com/s/case/5004z00001mDBzzAAG/material-instance-asset-creation-workflows?fromCase=1 Either standalone MFI creation should work just like MaterialInstances, ...

Material Editor Group Sorting section missing

Previewing a node overrides the output of PostProceessInput0 in a Post Process Domain Material after previewing has stopped

This is not a regression. Tested in //UE5/Release-5.1 CL20979098 Previewing a node overrides the output of PostProceessInput0 in a Post Process Domain Material after previewing stops. ...

Precomputed AO Mask renders with value of zero after building lighting

Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does not occur so it is a regression.  This issue occurs in 5.1 for both normal light building and GPU Lightmass building. In 5.0 th ...