Below are the screenshots depicting how a Single Layer Water material is rendered depending on the Per Pixel Atmosphere Transmittance setting of the directional light. When Per Pixel Atmosphere Transmittance is enabled, it appears that atmospheric transmittance is not calculated for a single layer water material. Is this a limitation of this shading model, or are there some settings or console commands that can fix this issue?
I tested this in UE 5.0 and 5.1 and got the same results. Screenshots were taken in UE 5.0. I also entered the following console commands:
r.SkyAtmosphere.FastSkyLUT 0
r.SkyAtmosphere.AerialPerspectiveLUT.FastApplyOnOpaque 0