Quat¶
Category: Built-In Types
Brief Description¶
Quaternion.
Member Functions¶
Quat | Quat ( float x, float y, float z, float w ) |
Quat | Quat ( Vector3 axis, float angle ) |
Quat | Quat ( Basis from ) |
Quat | cubic_slerp ( Quat b, Quat pre_a, Quat post_b, float t ) |
float | dot ( Quat b ) |
Quat | inverse ( ) |
bool | is_normalized ( ) |
float | length ( ) |
float | length_squared ( ) |
Quat | normalized ( ) |
Quat | slerp ( Quat b, float t ) |
Quat | slerpni ( Quat b, float t ) |
Vector3 | xform ( Vector3 v ) |
Member Variables¶
Description¶
A 4-dimensional vector representing a rotation.
The vector represents a 4 dimensional complex number where multiplication of the basis elements is not commutative (multiplying i with j gives a different result than multiplying j with i).
Multiplying quaternions reproduces rotation sequences. However quaternions need to be often renormalized, or else they suffer from precision issues.
It can be used to perform SLERP (spherical-linear interpolation) between two rotations.
Member Function Description¶
Returns a quaternion defined by these values.
Returns a quaternion that will rotate around the given axis by the specified angle. The axis must be a normalized vector.
Returns the rotation matrix corresponding to the given quaternion.
Performs a cubic spherical-linear interpolation with another quaternion.
Returns the dot product of two quaternions.
- Quat inverse ( )
Returns the inverse of the quaternion.
- bool is_normalized ( )
Returns whether the quaternion is normalized or not.
- float length ( )
Returns the length of the quaternion.
- float length_squared ( )
Returns the length of the quaternion, squared.
- Quat normalized ( )
Returns a copy of the quaternion, normalized to unit length.
Performs a spherical-linear interpolation with another quaternion.
Performs a spherical-linear interpolation with another quaterion without checking if the rotation path is not bigger than 90°.
Transforms the vector v
by this quaternion.