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 ) |
Description¶
Quaternion is a 4 dimensional vector that is used to represent a rotation. It mainly exists to perform SLERP (spherical-linear interpolation) between two rotations. Multiplying quaternions also cheaply reproduces rotation sequences. However quaternions need to be often renormalized, or else they suffer from precision issues.
Member Function Description¶
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.
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.
Perform a spherical-linear interpolation with another quaternion.