WebGPU Forward+ and Clustered Deferred Shading

Forward+ and clustered deferred shading in WebGPU. The scene is the Sponza atrium with a large number of moving point lights, and the project compares the shading methods at high resolution with thousands of lights.

In a 4K scene with 5,000 randomly moving lights, naive forward shading reaches about 3 frames per second, while clustered deferred shading stays above 100.

• Three pipelines: forward, clustered forward (Forward+) and clustered deferred
• A compute shader splits the view frustum into clusters, logarithmically along depth, and assigns lights to them
• Optional bloom post-process
• Compressed G-buffer

The live demo needs a browser with WebGPU.