Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 20 - QuickDraw 3D Mathematical Utilities / QuickDraw 3D Mathematical Utilities Reference

QuickDraw 3D Mathematical Utilities / Setting Up Transformation Matrices

Q3Matrix4x4_SetRotate_Z

You can use the Q3Matrix4x4_SetRotate_Z function to configure a 4-by-4 transformation matrix that rotates objects around the z axis.

TQ3Matrix4x4 *Q3Matrix4x4_SetRotate_Z (
TQ3Matrix4x4 *matrix4x4, 
float angle);

matrix4x4

A 4-by-4 matrix.

angle

The desired angle of rotation around the z coordinate axis, in radians.

DESCRIPTION

The Q3Matrix4x4_SetRotate_Z function returns, as its function result and in the matrix4x4 parameter, a rotational matrix that rotates an object by the angle angle around the z axis.