Hi Rawalanche,
We are sorry to hear about the issues you are experiencing. Ray tracing is still tagged as an “Early Access” technology, while we are happy with what we have done so far, this is just the beginning and we are working hard to make it better every day.
I have already filed some of the things you report here:
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When ray tracing effects are disabled (r.RayTracing.ForceAllRayTracingEffects is set to 0), there is still some ray tracing work done. In fact it has been like that from the beginning but now that in 4.23 we support heavier geometry types such landscapes or HISM this is more evident. This will be improved in the near future, hopefully in the first 4.23 hotfix
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“It is not obvious for many that in order for Ray Traced skylight to works, the environment sphere captured by SkyLight capture needs to have Ray Tracing disabled”
We are aware of this issue and are thinking on strategies for improve it. We have set the “visible in ray tracing” flag to false for the default sky primitives included with the engine but nothing prevents users from use other sky spheres. We are discussing the best way to go here and will hopefully come up with a better solution than the current one soon. -
We will also deeply look into the issues you report with reflections. I have double checked there are no changes in Preview 8 that should affect this but anyway we will review what we are doing and eventually will improve and fix whatever issues we find, trying to get the best performance vs quality balance.
Best,
Juan