Microsoft is propelling gaming and visual experiences to new heights with the introduction of DirectX Raytracing (DXR) 1.2 and advanced Neural Rendering technology that supports hardware from NVIDIA, Intel, and AMD. These innovative updates, revealed at GDC, promise enhanced visual fidelity and significant performance gains.
With DirectX Raytracing 1.2, Microsoft is rolling out two groundbreaking features: opacity micromaps (OMM) and shader execution reordering (SER). These technologies aim to dramatically boost rendering performance. Opacity micromaps streamline the processing of alpha-tested geometry, delivering up to 2.3 times performance improvement in path-traced games by reducing shader invocations. Shader execution reordering promises up to twice the rendering speed by optimizing GPU efficiency, paving the way for smoother, more immersive raytraced games.
DXR 1.2 is designed to yield up to 40% better performance in complex scenes, exemplified by the impressive raytraced visuals in Remedy’s Alan Wake 2 demoed at GDC. NVIDIA is already integrating these advancements into their drivers for GeForce RTX GPUs, while Microsoft collaborates with AMD, Intel, and Qualcomm for broader adoption.
In addition to these advancements, Microsoft is introducing cooperative vectors, a new programming feature in Shader Model 6.9. This allows developers to integrate neural rendering techniques directly into the graphics pipeline, leveraging new hardware acceleration engines for optimized vector and matrix operations. Major hardware vendors, including NVIDIA, AMD, and Intel, are fully embracing these cutting-edge technologies.
Moreover, Microsoft is updating Windows WARP, the CPU-based software renderer for DirectX, with enhanced capabilities and performance. WARP will be fully compliant with DX12 Ultimate, supporting the latest technologies such as raytracing and mesh shaders, perfect for systems without compatible GPUs.
Microsoft is also ensuring that developers have the necessary tools with day-one support for DirectX Raytracing 1.2 within PIX, its debugger and profiling software on Windows. These advancements will be part of the preview Agility SDK, available in late April 2025, promising exciting developments in gaming and graphics.
By advancing raytracing and neural rendering, Microsoft not only enhances the visual experience but also streamlines performance, marking a significant step forward in gaming and visual technology. These updates are sure to drive more developers to explore new creative possibilities, captivating audiences across the globe.
