Additional testing:
- I was wrong that it only happens in that one scene. I had it happen in a very similar looking scene. See screenshots.
- The 'shadows' originate from nowhere. They don't correlate with a light source. They're perfectly parallel stripes. The flickering frequency
is highly dependant on camera angle though.
- When I take a photo using BL's integrated photo mode, the shadow-stripes disappear for 1 second, then reappear. This enables to take perfectly identical images, one time with shadow-stripes, the second time without (just take a second shot suring the 1-second time window after the first was taken).
- When I attempted to use Windows integrated game video recording (Win+G), the shadow-stripes stopped flickering and stayed permanently on as long as the recording-overlay-UI was superimposed on the bannerlord window.
I have some videos of the flickering via the 'record last 30 second' function tho. No youtube-account tho, and will only bother to make one if TW
really totally needs more video.
Okay, now for the screenshots - there's usually two showing the same perspective, but one with the shadow-stripes and one without. It flickers between those two states as seen in OP's video.:
Player perspetive, no stripes:
Player perspective, stripes:
From above, no stripes:
From above, stripes:
Across mountains, no stripes:
Across mountains, stripes:
Different battle, daytime & sun position, no stripes:
Different battle, daytime & sun position, stripes:
The following shots were taken in the same scene as OP, but in nighttime, so the shadow-stripes were barely visible. So these are photoshopped images, with the black pixels overlaid on the image being the highly enhanced
differences between the.two images (shadow/non-shadow versions):
So these stripes are independent of any light source, they are identical per map regardless of daytime. Their direction seems to perfectly align with repeating patterns of ground textures, so my guess would be that they are along one of the axes of the map coordinate.system.
I could reliably fix it for the individual instance of the battle by changing the shadow options in the performance menu, switching dynamic shadows off and on again. The phenomenon will then reappear the next battle on an affected map.