In case there is no compatible GPU device, denoising automatically falls back to use the CPU, even if the option is enabled. Hardware acceleration – Uses the GPU device(s) to accelerate the denoising calculations. Show denoiser result channel – The VRayDenoiser and effectsResult channels are generated. Use this option if you plan to denoise a sequence of images using the standalone denoising tool and do not want to spend time on denoising during the actual rendering process. Only generate render elements – All render elements required for denoising will be generated but a denoised version of the image will not be computed, and the VRayDenoiser and effectsResult render elements will not be generated. The effectsResult channel is generated with the denoised image. Hide denoiser result channel – The VRayDenoiser channel is not present separately in the VFB. Mode – Specifies how the results of the VRayDenoiser will be saved. Use this button to apply denoising again after settings in this rollout have been changed. vrimg or OpenEXR into the V-Ray frame buffer. The elements can be either generated from a render operation in 3ds Max, or by loading a multi-channel. Update – Reapply the denoising operation when the required render elements are already present in the V-Ray frame buffer. This prevents visible seams caused by the denoising process. Panorama - When this option is turned on, V-Ray considers whether the image is rendered with a spherical panorama camera with FOV of 360 degrees. When enabled, the Denoiser uses information from previous frames to create a smoother transition. Temporal mode - Only available with the NVIDIA AI denoiser. Larger values produce smoother results, but slow down the denoiser.
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Radius – Specifies the area around each pixel to be sampled for determining how to denoise a given pixel. Larger values remove noise more aggressively, but may blur the image too much. Strength – Determines how strong the denoising operation will be. Strong – Applies a stronger level of denoising than the Default preset.Ĭustom – Allows the Strength and Radius parameters to be set to custom values.
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Mild – Applies a more subtle level of denoising than the Default preset.
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Preset – When using the Default V-Ray denoiser, the presets can be used to automatically set the Strength and Radius values. Note that, t he NVIDIA AI denoiser requires an NVIDIA GPU. VRayVFB – When enabled, the render elements appear in the V-Ray Virtual Frame Buffer.ĭeep output – Specifies whether to include this render element in deep images.ĭenoising engine – Allows choosing between the Default V-Ray denoiser, the NVIDIA AI denoiser, or Intel Open Image Denoise. This render element is enabled through the Render Elements tab of the Render Setup window in 3ds Max and displays its parameters in a rollout at the bottom of the window: It also doesn't support cross-frame denoising and will likely produce flickering when used in animation. This means that there will be differences between the original RGB image and the one reconstructed from render elements that are denoised with the NVIDIA AI denoiser. For example, the NVIDIA AI denoiser performs the denoising faster, but is not consistent when denoising render elements. This means that rendering on the CPU will still require an NVIDIA GPU for denoising with the NVIDIA AI denoiser and has some advantages and drawbacks compared to the Default V-Ray Denoiser. The NVIDIA AI denoiser requires an NVIDIA GPU to work, regardless of whether the actual rendering was performed on the CPU or GPU. NVIDIA AI denoiser - V-Ray's integration of NVIDIA's AI-based denoising algorithm. In addition, it comes with a standalone version, which is recommended for denoising animation by using frame blending. It is consistent when denoising render elements, as it applies the same denoising operator to all render channels, which means that it is recommended for denoising the render elements to be used for compositing back the beauty image. It can utilize the CPU or the GPU (AMD or NVIDIA GPUs) to perform the denoising. See the denoising engine examples below.ĭefault V-Ray denoiser - V-Ray's denoising algorithm. Each offers a different denoising algorithm that comes with different benefits.
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VRayDenoiser offers a choice between the Default V-Ray denoiser, the NVIDIA AI denoiser, and the Intel Open Image Denoise.