Denoise

Denoising will even out noise in the image, both in the Real-time View and in the final rendering. In the Real-time View, it will kick in after 1 second and be refreshed every 5 seconds (the interval can be adjusted in Preferences). You can always follow the Denoise state in the Heads Up Display. Denoising can also be toggled from the Ribbon, but the button will be disabled, if you have locked your image style.

• Adaptive Progressive Denoising - Optimizes which parts of the image samples are focused on. We recommend to keep Denoise Blend on 1 when this is enabled. (Nvidia GPU only).
• Denoise Blend – The Denoiser creates a denoised image which is blended with the rendered image. The Denoise Blend slider enables you to control the strength of the denoise effect. Decreasing the value will allow more of the original noise in the image.
  If you have a scene with fine details or textures, the denoise may wipe out the details – try to decrease the Denoise Blend value.
• Firefly Filter – The Firefly Filter may help to reduce pixels that stand out in the image. The slider enables you to control the strength of the filter. A high amount of filter may in some cases remove details in the image that are wanted. If this happens, try decreasing the value.

Note
KeyShot Studio 2024.3 an onward uses progressive denoising if you have a Nvidia RTX 20-series GPU or newer. This is independent of you being in CPU or GPU mode. Systems with older GPUs ( GTX 900- or 10-series) will default to the old denoise.