3D ray tracing produces accurate, deterministic channel models for wireless system design. Increasing a ray tracing algorithm's ability to identify correct propagation paths reduces the kinematic errors of a simulation. This paper presents a new 3D ray tracing technique that reduces kinematic errors associated with ray launching algorithms. This work is sponsored by the NSF Presidential Faculty Fellowship under grant No. NCR9253598 and the MPRG Industrial AÆliates Program.