[BUG] RT shader not working
ShenxPresent opened this issue · 8 comments
Describe the bug
shadow incorrect when use PTGI in 1.16.5
Expected behavior
Screenshots
Debug crash log
no crash
Additional context
It seems that someone can ust PTGI with correct shadows, but no details. https://tieba.baidu.com/p/6900586120
the link aw is 1.12
another finding is that it used PTGI e7, but there's still an issue that many shaders are not work correctly.
链接 aw 是 1.12
Finding that is the incorrect normal culculate, I am trying to fix it in shader pack
It seems like that the bug is mainly caused by the incorrect tbn culculation, which means there's maybe some issue on the texcoord.
Fine... Now here's a solution, it seems like that the tbn could make the viewnormal out of range(-1,1), which I thought could be fixed by the mod side, if this could be fixed it seem like better than waiting for all shader add clamp function during culculating normal in view space.