shader execution reordering

Shader Execution Reordering (SER) is a feature introduced in DirectX Raytracing (DXR) 1.2, part of Shader Model 6.9 and the DirectX Agility SDK 1.619. It aims to improve ray tracing performance by reordering shader execution to better utilize GPU resources. Early benchmarks show significant framerate gains, such as roughly +40% on an NVIDIA RTX 4090, and notable improvements on Intel Arc B-Series hardware. SER is often paired with Opacity Micromaps (OMMs) to reduce performance bottlenecks in heavy ray tracing and path tracing workloads. This technology is primarily relevant for game developers and enthusiasts interested in optimizing real-time graphics on Windows systems.