Light flickering in animations

[Paul_Russam]

I know this has been asked before but I’ve recently experienced it and so I’ve created a demo video and SU project that I’ll send via a Feedback linked to this thread.

In the video there are 2 rows of bollards, the left ones flicker, the right dont, the difference is that the lefthand row have an emmisive object along with the rect lights and the righthand row dont.

The lefthand ones look better as they visually have a light source.

I’ve had to use the rect lights as without them the bollard casts a massive shadow on the ground around itself thus defeating the object of the boallard.

Simple video: https://youtu.be/4BwQZcvDcec

Edit:

Feedback with link to SketchUp model sent.

[Paul_Russam]

Well, I think I fixed it myself, new test video:

I remade the bollard with simpler geometry:

In my original bollard I had geometry that was close to the emmisive ‘bulb’, I think this is whjat caused the flickering

[Demian_Gutberlet]

Glad you were able to resolve it. The light might’ve really been half in the object half outside, thus causing a behavior similar to Z-fighting, just with lighting.