Lighting "popping in" with camera movement in Lumen

Hi!

I’m currently trying to render a scene in which the camera dollies towards the landscape.

Problem is, even with scalability set to cinematic, cascade shadows at 10, and lumen settings boosted up, the lighting very obviously changes as the camera gets closer. I’ve also checked the lumen visualisation viewport, and everything is in range from the beginning of the shot. Combined with the way the foliage shadows dance, it makes the sequence unusable.

I’ve included a cropped-in video to give you an idea - the whole image is in 4K, so the part seen glitching is actually centered and further away than it seems in the clip.

Does anyone have a solution or a workaroundm, other than to scrap that specific camera movement/angle?

same problem

Hi there @GAGDAV

How thick are the walls that the light is coming through? Usually when that happens to me it’s been due to a wall/door/etc being too thin. After fixing it, it usually goes away.

Those are palissades made of 12’’ wide posts. I could try perhaps adding a lining of some sorts to thicken the wall in that specific shot, see if that helps.

Thanks for the suggestion, I’ll give an update whether it works or not!

Good deal! Let me know what you find.

Unfortunately that didn’t help fix the situation.

Come to think of it, I should’ve expected it, as the landscape has the same issue.

Was worth a shot, though!

That’s the global distance field chunking in, which affects lighting. In the world settings tab, there’s an option to increase the distance called “Global DistanceField View Distance” but keep in mind that it will reduce some of the overall quality of the field, though it’s usually far less of an issue than what you’re having. It defaults to like 20k, but you can set it to 100k if you want.

I’m going to try this as well. Thank you!

Sorry for the late reply, but that seemed to fix things! Thank you!