graphene:matrix-rotate (matrix angle axis)

matrix -- a graphene:matrix-t instance
angle -- a number for the rotation angle, in degrees
axis -- a graphene:vec3-t instance for the rotation axis

The graphene:matrix-t instance for the result.

Adds a rotation transformation to the matrix, using the given angle and axis vector. This is the equivalent of calling the graphene:matrix-init-rotate function and then multiplying the matrix with the rotation matrix. The angle argument is coerced to a single float before being passed to the foreign C function.