Im working on a project and came across a problem with cycles. I have a turntable render of my building which is mostly ok, but at a certain point the lighting inside of the building (mostly lit by indirect lighting) has a sudden flicker. This is persistent regardless of the number of light bounces, number of samples or denoising or not. Also it is always at the same frame. The scene is lit only by HDRI. Any idea what could be causing this as it is driving me nuts.
Thanks for all the answers, i figured it out meanwhile that it was the camera fog causing those flickers. Cheers everyone
Mosque turntable (Flicker occurs in the first 2 seconds of the vid)