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HOW TO UPDATE REFLECTION CAPTURE IN GAME?

i made a scene with day/night circle, but the reflection doesnt update. How can i update the reflection capture in game?

Product Version: UE 4.19
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asked May 18 '18 at 02:55 AM in Using UE4

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kiisaku
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avatar image frezer748 May 09 '19 at 10:30 PM

Also looking for an answer on that.. I am basically looking for an "Environment Probe" as in CryEngine. Because there you could have multiple level/layers with different times of day and it automatically updates the reflection capture when switching the lighting conditions. Currently I always have to rebuild reflection capture when I unhide a certain level with another time of day to get a proper reflection in the scene.

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3 answers: sort voted first

In 4.18 I had a blueprint call "r.reflectioncapture" as a console command which updates all the probes. Obviously a significant hitch when you do so as the entire rendering thread stops, but if that's not an issue for you then it works perfectly.

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answered Jun 04 '18 at 09:27 PM

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Cameron Abt
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avatar image Nonlin Sep 09 '18 at 04:22 PM

This doesn't work as of 4.19, what is our solution inf 4.19 and up?

avatar image edstoica Nov 29 '18 at 04:15 AM

Bump... Really need a solution for 4.19 up. Is there a way to reactivate "r.ReflectionCapture" command or function in source code?

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Also looking for an answer on that.. I am basically looking for an "Environment Probe" as in CryEngine. Because there you could have multiple level/layers with different times of day and it automatically updates the reflection capture when switching the lighting conditions. Currently I always have to rebuild reflection capture when I unhide a certain level with another time of day to get a proper reflection in the scene.

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answered May 09 '19 at 10:30 PM

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frezer748
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You can't, starting from 4.19 reflection captures are now part of the map buildData just like lightmaps and the code that updates them is inside the editor code. I believe that means you can swap sets of pre-generated captures by using lighting scenarios.

https://docs.unrealengine.com/en-us/Engine/Rendering/LightingAndShadows/PrecomputedLightingScenarios

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answered May 09 '19 at 11:37 PM

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Manoel.Neto
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