Good day everyone.
The issue is that whenever I stretch my RectLight on one axis its reflection turns into a sad, blurry puddle instead of the crisp line it should be.
It happens only in Substrate, and if a light gets elongated on one axis only. If it is stays relatively square it seems to be ok. But that’s obviously not great.
As you can see on the screenshot below, with old pipeline it is as crisp as it should be.
Is there any way to work around it? Just a plane with emissive material reflects as a crisp edge, but, there is no specular on the object, so it is not really a light that I need.
Engine version is 5.7
And this is how it looks in 5.3. Just a chrome ball. roughness = 0, F0 = 1. diffuse = 0,0,0
Really wish it is some issue on my side 