Can model be rotated by quaternion (C++) ?

[risecreature]

I have models animation data with quaternions of rotation.

How can I rotate model using this quaternion using C++ ?

Thanks

[Josh]

I think there's a commend like SetQuaternion. Why would you want to do this? Quaternions are not very intuitive at all.

[risecreature]

I am just porting data from one engine to another, actually from AGK, and all limbs of model rotated by quaternion. It's not intuitive, but historical, I had no option here.

[Josh]

This undocumented function can be used:

void SetQuaternion(const Quat& q, const bool global=false)

 

The Quat constructor is like this:

Quat(x,y,z,w)

 

If the results don't look as you expect, try multiplying the w value by negative one.

 

You can also just use the Vec3 constructor to convert a Quaternion into a Euler angle:

Vec3::Vec3(const Quat& q)

[risecreature]

Thank you very much :-)