Rainbow Six Siege

Rendering Rainbow Six Siege

Maintaining a consistent 60 frames per second in Rainbow Six Siege across diverse console and PC hardware requires a sophisticated approach to architectural optimization and resource management.

• To maintain 60 FPS during heavy destruction, the team implemented a hierarchical Z-buffer (Hi-Z) system that enabled aggressive GPU-side occlusion culling, reducing total rendered triangles by 73%.
• The engine utilizes a clustered lighting structure with 32x32 pixel cells and Z-distribution, allowing for efficient light volume culling against the Hi-Z buffer while supporting up to eight shadowed lights.
• To support low-end hardware with 1GB of VRAM, the team replaced standard DirectX 11 deferred contexts with a custom, compute-shader-driven rendering architecture that manages unified constant buffers and vertex data manually.