Hi everyone!
Anyone knows why this weird behaviour of hdrp area lights’ reflections that are still visible even if there is a wall between the area light itself and the reflective surface?
This behaviour happens with every reflection system (SSR, reflection probe, planar reflection probe)
My best guess would be that you did not enable shadow map for this area light.
Tx for your reply but the reflections remains even with the area light shadow map on or off
Hi, I investigated this and what you see is just a limitation of the area light implementation.
Basically, the shadow map is not totally black and when is multiplied in the reflection, there is a residue and you can still see the light coming from it.
For example in my capture here, you can see the first half of the area light poping up though the “wall” very bright and the other half (the one who is multiplied by shadow map) a lot fainter.
The more I lower the intensity the less you can see the faint half. (second image)
You can attenuate this by lowering the intensity value on your area light. Also, this is more visible when you have a very smooth reflective material.
The other workaround would be to use raytraced shadows for area lights (this solve entirely the problem but it’s a bit more costly :shocker:)
Hi Chap. Thank you so much for your effort! I’ll follow your instruction then. Tx!!!
Could you add option in SRP to disable only emissive part of lights which is reflected?