Thanks for the Answer. I want to rotate one Direction around another Direction, and that i have to do with vec_rotateaxis, vec_rotate isn`t the solution.

Will check my code with file_open_write...

EDIT: ok, i test it. If i don`t use vec_to angle, all is correct in my log, vec_rotateaxis do nothing. If i let the code as below, before vec_rotateaxis all is right. But after it Temp_vec4 is jumping around.

I try to figure out it also with draw_line3d, and i see the same result: If Temp_vec4 is jumping, he jump not in the right Direction (around axis Temp_vec6) ???