- #1
Fly7
- 2
- 0
Hi all, I don't know if this is the right section, but I really need to solve this problem. I've been searching for the correct formula for two days. OK, here's the picture:
The global rotation of all objects (rot_x, rot_y, rot_z): red object (0.00, 45.00, 0.00), blue object (45.00, 0.00, 90.00) and green object (30.00, 35.26, 35.26).
I need to calculate the local rotation of the objects, so the local rotation of the green object should be (0.00, 45.00, 45.00). I want to be able to rotate objects locally, not globally. Here is one formula, but I don't understand how to use it:
I hope someone can help me solve this because I'm newbie in math.
The global rotation of all objects (rot_x, rot_y, rot_z): red object (0.00, 45.00, 0.00), blue object (45.00, 0.00, 90.00) and green object (30.00, 35.26, 35.26).
I need to calculate the local rotation of the objects, so the local rotation of the green object should be (0.00, 45.00, 45.00). I want to be able to rotate objects locally, not globally. Here is one formula, but I don't understand how to use it:
Code:
[ 1 0 0 ]
[ 0 cos(a) sin(a)] = Rx(a)
[ 0 -sin(a) cos(a)]
[ cos(a) 0 -sin(a)]
[ 0 1 0 ] = Ry(a)
[ sin(a) 0 cos(a)]
[ cos(a) sin(a) 0 ]
[-sin(a) cos(a) 0 ] = Rz(a)
[ 0 0 1 ]
[URL="http://stackoverflow.com/questions/6252223/adding-local-rotation-to-global-rotation"]source[/URL]