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ReduceM: Interactive and Memory Efficient Ray Tracing of Large Models

We present a novel representation and algorithm, ReduceM, for memory efficient ray tracing of large scenes. ReduceM exploits the connectivity between triangles in a mesh and decomposes the model into triangle strips. We also describe a new stripification algorithm, Strip‐RT, that can generate long strips with high spatial coherence. Our approach uses a two‐level traversal algorithm for ray‐primitive intersection. In practice, ReduceM can significantly reduce the storage overhead and ray trace massive models with hundreds of millions of triangles at interactive rates on desktop PCs with 4‐8GB of main memory.