Decks effacés pour DirectStorage 1.1 et décompression des actifs de jeu accélérée par GPU

Back in March 2022, Microsoft formally debuted the DirectStorage 1.0 API that enables direct interactions between a GPU and a storage device; thereby reducing the processing load of the storage stack on the CPU and main memory. This release, cependant, lacked a killer feature that’s available to consoles—asset decompression. With the lukewarm response from game developers to DirectStorage 1.0 for PC, Microsoft has finally updated the API, introducing the feature with DirectStorage 1.1.

Avec cette fonctionnalité, your GPU can not only directly fetch game assets from the storage device (an SSD that uses either NVMe or AHCI protocols), but also pull them in their natively-stored compressed state. These assets are then decompressed by the GPU using compute shaders, and the decompressed assets remain in the video memory. This will directly impact game loading times, as asset decompression no longer involves the CPU. Its impact on the game’s framerate will be minimal, as the API mainly accelerates game loading times, not gameplay itself. Game assets are organized pieces of data such as textures, 3D model files, music, sound effects—pretty much all of the individual pieces of content that make up a 3D scene.