eulertoquaternion
Unit quaternions are used to represent rotations. This VEX function creates a unit quaternion that represents a rotation.
vector4 eulertoquaternion(vector rotations, int order)
Creates a vector4 representing a unit quaternion from a vector representing Euler rotations in X, Y, and Z.
The angles are in radians. Use the radians() function to convert degrees into radians.
order
One of the rotation order constants listed below, which can be imported from $HFS/houdini/vex/include/math.h.
| Constant name | Rotation Order |
|---|---|
| XFORM_XYZ | Rotate order X, Y, Z |
| XFORM_XZY | Rotate order X, Z, Y |
| XFORM_YXZ | Rotate order Y, X, Z |
| XFORM_YZX | Rotate order Y, Z, X |
| XFORM_ZXY | Rotate order Z, X, Y |
| XFORM_ZYX | Rotate order Z, Y, X |