PhysicsMod Flickering shadow

When mobs start fighting, a flickering shadow appears after a while, clearly visible on light textures.

Tested on fabric 1.21.5 and fabric 1.21.8. Shaders: Photon Shaders and SEUS_PTGI, flickering shadow in both shaders.

Video example on google drive. https://drive.google.com/file/d/1Fy-pCsWb5yM2LOLElhcyMI8Pf1OQBcIL

Aug 15 '25 08:08 Black911X

Are those the 0, 0 coordinates roughly where the shadows appear?

Sep 05 '25 09:09 haubna

Are those the 0, 0 coordinates roughly where the shadows appear?

I have now created two flat maps, on the first one the shadow flickering at coordinates -141 -61 -232, on the second map the shadow flickering appeared at coordinates 7 0 -33, when i killed the mobs and spawned new ones, shadow flickering appeared -10 0 -31. I recorded a video, coordinates are visible on them.

https://drive.google.com/file/d/17LNz6e54j9P9X0ewNtgDZ8xLjH7o5ksP https://drive.google.com/file/d/1RcIvTwHTayQEXssPwZMgGgZznXsJww_8

Sep 05 '25 15:09 Black911X

Semi unrelated but there are shadow errors present in Solas shaders, I contacted them about it since I don't know on which end it needs to be fixed. It happens around particles, smoke, dynamic doors and trapdoors, etc. (Fabric 1.21.8)

Sep 09 '25 03:09 SuperArcherG