Hi,

I have 3 rotation angles for a global orientation of a ship. From that I can 
create a transformation matrix.

Now I want to have a function to rotate that _rotated_ ship around it's 
local axes.

Something like:
mat1 = MakeRotMatrix(rx,ry,rz)
mat2 = MakeRotMatrix(deltax, deltay, deltaz)
mat = MultMatrix(mat, mat2) // or the other way round!?
GetEulerAngles(mat, &rx, &ry, &rz)

I don't know if that is right. Can someone shed light, please?



-- 
------------------------------------
Gernot Frisch
http://www.glbasic.com

Ignore this post. I made it my not storing any angles, but only the matrix. 
Then I multiply it with a rotation matrix and done.
The order of the multiplication switches between global and local rotation 
axes.
Sorry for bothering. 

Gernot Frisch schrieb:
> 
> 
> Ignore this post. I made it my not storing any angles, but only the
> matrix. 
For your application a very good choice :-)