The directional light flickers as I loop my camera?

Development Rendering
1

I have a camera running in a sequence that infinitely loops back to the start after reaching a certain point. Whenever it loops back I get this slight flicker with the directional light like it’s resetting itself. I’ve tried parenting the directional light to the camera to so it’s not picking up differences in light intensity over distance but directional lights don’t seem to work like that. I would try this with a Spot Light but I can’t seem to get the Light Shafts I’m after if I’m using a Spot Light.

It’s possible that when it loops back… the trees at the back are appearing out of no where in front of the Light and causing it to dip for a second?

And no Auto Exposure is not on.

DirectionaLight_2
DirectionaLight_21082×639 113 KB

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Are you moving the camera with the sequencer? Have you tried blueprint?

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I am. I switched to the sequencer because the Blueprint didn’t seem as smooth of an option when I tried it.

Edit: Tested blueprints again. Same problem

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Meh… I don’t think there’s an easy answer to this. I assume, if you force the frame rate down artificially, the problem is much worse.

Maybe look into spawning and destroying actors instead of moving the camera.

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This is what I have moved onto now thank you. I’m just going to move the actors. Seems like lighting does not like quick jumps with the camera.

1 Like
7

Seems like the way you have it set up you are causing the light to start and stop.

The right way to handle it could vary between just not moving the light (possibly if using directional light) or just moving the objects.

It could also be the way sequencer handles looping that is causing the loop to start drawing from 0 instead of leaving the light on in the scene…

PS:
Auto exposure must be on?
It shouldn’t fade from black to visible as the video shows if it’s off…
I would expect it to be much more abrupt if it’s going from on to off to on again.
(Then again you never know with the engine…)