/** A scale matrix */
public static Mat4f scale(ConstVec3f v) {
return scale(v.x(), v.y(), v.z());
}
/** A view matrix defined by its forward and up vectors. */
public static Mat4f view(ConstVec3f forward, ConstVec3f up, ConstVec3f eye) {
Vec3f left = up.cross(forward);
return new Mat4f(
new Vec4f(left, 0), new Vec4f(up, 0), new Vec4f(forward, 0), new Vec4f(eye, 1));
}
/** A translation matrix */
public static Mat4f translation(ConstVec3f v) {
return translation(v.x(), v.y(), v.z());
}
/** A rotation matrix around the u-axis with length 1. */
public static Mat4f rotation(ConstVec3f u, double radians) {
return rotation(u.x(), u.y(), u.z(), radians);
}