AMD GPUOpen recently published an article detailing a technique for efficiently ray tracing massive amounts of animated geometry in real time. The method, designed to reduce per-frame update and memory costs, utilizes compact tetrahedral cages to animate geometry while reusing static mini-BLASes. This approach enables the rendering of hundreds of millions of triangles in real time, specifically targeting dense foliage, grass, and crowds. The article explains that by animating these control cages, complex deformation of detailed geometry can be achieved. According to AMD GPUOpen, this "dramatically cut[s] per-frame update and memory costs for dense foliage, grass, and crowds," significantly enhancing performance for dynamic environments in applications like games and simulations. This development is relevant for GPU developers working on advanced real-time rendering techniques.