Just wondering if Epic has talked anywhere about their strategy for updating reflections in Fortnite with their time of day changes?
This remains a stumbling block for me in my project for a number of reasons.
- Updating the sky causes a fairly massive frame hitch.
- I’m unable to use reflection captures in levels for local reflections because the base luminance varies substantially between day and night.
- Because of this I use a global reflection that’s just captured from the sky, but elements like the Fog have a huge influence on the brightness and color of the reflections, and I can’t adjust them independently. This often results in objects feeling like they’re lit from below or from the sides primarily.
- This could potentially be mitigated by manually setting the lower hemisphere color in the skylight, but this doesn’t seem possible at runtime.
Fortnite’s reflections look quite good under most conditions I’ve seen, and their scenes are quite varied, so I’m wondering how they’ve accomplished it. Do they have their own in-house solution? Is their ToD done only through postprocessing? Has the team talked about this publicly and if not would they be willing to? Does anyone else have solutions to some of these problems?
Thanks in advance,