示例#1
0
        // returns frame at ray-intersection point, with normal pointing *outwards*
        public static Frame3f GetCylinderFrameFromAngles(float fHUDRadius, float fHorzAngleDeg, float fVertAngleDeg)
        {
            Ray3f r     = VRUtil.MakeRayFromSphereCenter(fHorzAngleDeg, fVertAngleDeg);
            float fRayT = 0.0f;

            RayIntersection.InfiniteCylinder(r.Origin, r.Direction, Vector3f.Zero, Vector3f.AxisY, fHUDRadius, out fRayT);
            Vector3f v = r.Origin + fRayT * r.Direction;
            Vector3f n = new Vector3f(v[0], 0, v[2]).Normalized;

            return(new Frame3f(v, n));
        }
示例#2
0
        public static Frame3f GetCylinderFrameFromAngleHeight(float fHUDRadius, float fHorzAngleDeg, float fVertHeight)
        {
            Ray r = VRUtil.MakeRayFromSphereCenter(fHorzAngleDeg, 0);

            r.direction = fHUDRadius * r.direction + fVertHeight * Vector3.up;
            r.direction.Normalize();
            float fRayT = 0.0f;

            RayIntersection.InfiniteCylinder(r.origin, r.direction, Vector3f.Zero, Vector3f.AxisY, fHUDRadius, out fRayT);
            Vector3 v = r.origin + fRayT * r.direction;
            Vector3 n = new Vector3(v[0], 0, v[2]).normalized;

            return(new Frame3f(v, n));
        }