What is your FOV set to? mine was near max. I found that if I put FOV back to default this problem goes away. The more I increase FOV the more it distorts, Also it's affect goes away when you zoom. I would say yeah this problem may only occur on older graphics cards, I'm currently using an ancient NVIDIA Quadro K2200.
But on the other hand if that were to be the case, why does this only occur in select areas? It's not only a matter of viewing angle or terrain angle as you can see here in this picture with even more angle but barely any visual issue ;o
Surely implementing object evasion into a Kerfer on a very basic level could be viable especially if only done for Kerfer entities & no other. You don't need a system that is constantly ticking & updating, You could use something like a raycast or cone trigger infront of Kerfer which if it hits certain whitelisted physics props (Primarily bigger objects) it then enables the evasive pathing mode, Sets timer for say 1.5 seconds, The timer disables pathing & return Kerfer to initial task. -Kerfer has single handed been the most destructive entity for me so far they have no respect or boundaries. T^T
Yeah I noticed that cute little placeholder, funny. *^-^*
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-Also this shouldn't ever be an issue for any normal human, But I found that by nailing Kerfer's plug to the ground prongs facing up then retracting it, Then trying to pick up the plug for some reason the plug teleported up through the roof turning Kerfer into the world's first robotic piñata, & to make it even more amusing is as I took the screenshot I was simultaneously traumatized by my first sleep demon #0.0# (initial frames of him appearing just to the left of Kerfer) -Ignore my test subject to the right.