Description

After enabling forward shading materials with their decal response set to "normal" have incorrect shading. In the example project there are many pointlights and their specular highlight doesn't display properly.

The licensee explains that the normals passed into the shader are not normalized which is adversely affecting shading.

The decal response "Color Roughness" appears to be working correctly.

Steps to Reproduce
  1. Open attached project
  2. Notice the even specular highlight strength
  3. Enable forward shading and restart

RESULT
The highlights on the material with decal response set to (normal) are significantly dimmer.

EXPECTED
The visual appearance of the specular highlights should be the same after enabling forward shading.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-44058 in the post.

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Fixed
ComponentUE - Rendering
Affects Versions4.14.34.15.1
Target Fix4.17
Fix Commit3444787
Main Commit3461201
CreatedApr 17, 2017
ResolvedMay 24, 2017
UpdatedApr 27, 2018