Reflection problems when unbaked Reflection Probes are present

6.3.X

Won't Fix

Thank you for this report. After investigating this we have found that there are two issues at play here. 1) Missing Reflection Probes This is actually as designed. In the traditional Forward and Deferred code paths, we pick only 2 reflection probes per object (there are technical reasons for this choice which I cannot go into here). Generally, this doesn't work very well for large objects. The plane in the attached test project is an example of this. It can only pick 2 reflection probes for the entire plane and this is why some of them seems to be missing in the final rendering. Both Forward+ and Deferred+ have lifted this limitation by picking reflection probes per screen space tile (or cluster) instead of per object. We recommend you switch to either Forward+ or Deferred+ to resolve this issue. Alternatively, you may chop large objects into smaller ones to allow for more fine grained reflection probe picking. 2) Artifacts After Clearing Lighting Data We found that if we bake reflection probes and then clear all lighting data, we would see the blocky artifacts that are mentioned in this bug report. This is indeed a bug and we will investigate this further. In order to simplify the coming investigation and fixing process, we will create a new separate bug report specifically about this issue (i.e. it won't missing problem 1, described above). For this reason, we will close this present bug report.