Changing Texture compression settings breaks Materials with mismatch on Texture Sample Sampler Type

UE - Rendering - Materials - Aug 5, 2015

If you change a texture's compression settings, materials will show errors because of a mismatch in the Sampler Type of Texture Samples. This can be fixed by adjusting the Sampler Type and re-savin ...

Fresnel material doesn't display properly in content browser and sometimes weird in material viewport

UE - Rendering - Materials - Aug 4, 2015

When a material is created and saved using the fresnel node, the fresnel effect does not show in the Content Browser thumbnail. Also, when editing the material, zooming in and out with the mouse wh ...

Comments on the final material input node are erased when opening material again

UE - Rendering - Materials - Aug 3, 2015

Comments on the final material input node will be erased when closing and reopening the material. ...

Typing Lerp into context menu of material editor does not bring up Linear Interpolate node

UE - Rendering - Materials - Jul 31, 2015

If "lerp" is typed into the context menuof the material editor, "linear interpolate" will not appear as one of the options within the menu. Typing "Linear Interpolate" or pressing L+LMB works as exp ...

Previewing Notification on Material Nodes never leaves when Previewing stops

UE - Rendering - Materials - Jul 30, 2015

When you preview a node in the material editor, the Previewing text inconsistently appears on node and when previewing stops does not disappear. The Blue and Green Color change appears to work as e ...

Material Function Warning: Only transparent or postprocess materials can read from scene depth.

UE - Rendering - Materials - Jul 14, 2015

In a material function, after adding a scene depth node and applying it to the Output Result node a warning pops up. This warning is Only transparent or postprocess materials can read from scene dep ...

Material Usage Flags not triggering Source Control

UE - Rendering - Materials - Jun 24, 2015

Usage Flags are not correctly marking Materials as dirty when automatically setting and with using a Source Control method. Compact Repro Steps from User: "To reproduce: Create a entrance level th ...

UDN: LICENSEE: Duplicated parameters in Material Parameter Collection are buggy

UE - Rendering - Materials - Jun 24, 2015

When you add a parameter by doing DUPLICATE of an existing one, the new settings don't take effect. (Adding parameters and other copy/pasting seems fine as far as I can tell) I verified this at EGJ ...

Duplicated Parameters in a MPC cannot be used always return source results

UE - Rendering - Materials - Jun 15, 2015

When you duplicate a Parameter in a Material Parameter Collection instead of adding a new Parameter, the duplicated parameter always returns the same results as the source no matter the value entere ...

Converting Texture Sample to Parameter when MipValue set to "Level" or "Bias"

UE - Rendering - Materials - May 27, 2015

When a Texture Sample's MipValue is set to something other than "none" (which adds the extra pin), attempting to convert that Texture Sample to a parameter will cause the Editor to crash. (Simple r ...