Then you might need to do some sort of projection from screen space to world space to get the end point of the trace. Take a look at:
I can’t look right now, but might be able to help later if you get stuck.
Then you might need to do some sort of projection from screen space to world space to get the end point of the trace. Take a look at:
I can’t look right now, but might be able to help later if you get stuck.