When using an IES profile with a static light, the lightmap that gets baked will lose all detail of the IES profile. Example project attached.

This doesn't occur in 4.19 CL# 4033788

Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4670176

Steps to Reproduce
  1. Open the Editor
  2. Place two Spotlights in the level and set one to static and the other to stationary
  3. Apply NarrowComplex_IES to the Spotlights
  4. Build lighting

All detail of the IES profile will be lost in the static light

The IES shape would be retained in the lightmap 

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-67973 in the post.

Login to Vote

Affects Versions4.204.214.22
Target Fix4.22
CreatedJan 3, 2019
ResolvedJan 30, 2019
UpdatedJan 30, 2019