3D Artist Tests DLSS Denoiser in Blender 5.1 Beta DLSS support in Blender has been highly anticipated ever since its showcase at SIGGRAPH 2025. Now, early tests in Blender 5.1 Beta show that NVIDIA’s DLSS Ray Reconstruction can significantly improve viewport denoising in Cycles, making previews smoother and faster — though the feature is still experimental and not yet officially released.















