Smoldr is an open-source command-line tool that runs DirectX 12 HLSL shaders from simple text scripts, letting you compile, create resources and pipelines, and dispatch compute or raytracing workloads without writing C++ code.

AMD GPUOpen

AMD has released Smoldr, an open-source command-line tool that lets developers run DirectX 12 HLSL shaders using simple text scripts — no C++ required. Similar to Google's Amber for Vulkan, Smoldr handles shader compilation via DXIL, pipeline creation, resource management, and compute or raytracing dispatches. It supports the Microsoft Agility SDK for experimental HLSL features and integrates with AMD Radeon GPU Profiler. The tool is work-in-progress with plans to add mesh shader support next.

Enhancing DirectX Testing with AMD Smoldr