The same thing to me, looks identical to the default animTree.
I wach video again and I’m sure Supercan uses a separate model of leaves and trees, and one global function for dynamic random wind blowing, to get that effect. That game looks really professional, dynamic tress shadows looks nice, i thought shade-c doesn't support this, maybe EVO?

EVENT_FRAME solved the problem with fps

ShadeC EVO has memory leaks and I wouldn't recommend using it. As far as I know, it doesn't have vegetation shaders. As I'm new to shaders in general, I can't migrate unity shader to the acknex, maybe txesmi might help, as he is a shader guru

Glad to hear that ENABLE_FRAME helped out. I would also recommend to not use while loops in general, but ENABLE_FRAME for cosmetics and on_frame for game mechanics.

Thanks for advices 3run, today I learned a very useful thing about the ENABLE_FRAME. I use Shade-C 0.91 BETA S1, it is stable and I do not plan to switch to EVO just because of dynamic shadows, but I must admit that the effect of moving the shadows of the trees is something special in video above.