Valve's Linux graphics team has merged a new GUI tool called the Ray-Tracing Inspector (RTI) into Mesa 26.1. Created by Konstantin Seurer, RTI is designed for developers to inspect ray-tracing acceleration structures (BVH) and RT dispatches in the RADV Vulkan driver. The tool is built with ImGUI, Vulkan, and SDL3, and can be enabled via the RADV_DEBUG=rti environment variable to dump BVH and ray history data to /tmp for analysis. It is not intended for end-users but for driver developers optimizing ray-tracing performance. The tool can be built with the Meson option -D tools=rti and is extensible to other GPU drivers in the future.
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