The most important addition is DXR, which enables ray tracing not only on PC but on the Xbox Series X, as well. They’re mainly for developers to optimize games beyond what they could do in DirectX 12 or DirectX 11. Sampler feedback feeds samples of what could happen without actually executing the instruction, allowing games to make better decisions about what assets to stream in.Īlthough DirectX 12 Ultimate has many new features, you don’t need to worry about them. Sampler feedback: Modern games stream assets into the game world, and the game is forced to predict what to stream next based on what the player is doing.This avoids passing between your CPU and RAM when drawing meshes, which improves performance. Mesh shaders: Mesh shaders are a complex topic, but they essentially combine multiple shader steps into a single process. The idea is to boost performance by focusing on the most important areas of a scene, which saves resources in less demanding areas.
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