Note that RTX is not available officially for WebGPU (yet?) and is only available for the Node bindings for WebGPU. Recently I began adapting an unofficial Ray-Tracing extension for Dawn, which is the WebGPU implementation for Chromium. The Ray-Tracing extension is only implemented into the Vulkan backend so far, but a D3D12 implementation is on the Roadmap. You can find my Dawn Fork with Ray-Tracing capabilities here.

Now let me introduce you to the ideas and concepts of the Ray-Tracing extension.

source: HN