Workgraphs is a new feature added recently to DirectX12 with hardware support from NVidia and AMD. It aims to enable a GPU to produce and consume work without involving the CPU in dispatching that work. I spent some time the past couple of weeks experimenting with workgraphs and I've put together this high level tutorial…

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Workgraphs is a new feature in DirectX12 supported by NVidia and AMD hardware, designed to allow the GPU to produce and consume work without CPU involvement. This tutorial walks through using workgraphs to implement a shadow raytracer in a toy engine, explaining how to configure and launch nodes, manage thread groups, and handle data records. Workgraphs promise better memory utilization and simplified GPU-driven rendering by handling work production and consumption locally on the GPU.

A quick introduction to workgraphs