Denoise – Immediately denoises all denoisable elements using the most advanced denoising mode that is available for the image.
Denoise Amount – Mixing coefficient between the original (noisy) and processed (non-noisy) image. It allows fine-tuning the effect strength to find the sweet spot between preserving the finest details and removing excessive noise.
Custom Denoise
All – Selects all items for denoising.
None – Unselects all previously selected items for denoising.
Inverse – Inverts the current selection.
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Elements that cannot be denoised are not listed.
Denoise Mode – There are 4 denoising options available. The Denoise amount option can be used later to interactively control the strength of their effect.
Fireflies Only – Fast filter that just removes very bright pixels from the image (created by any source - noise, caustics, sun reflections, etc.) NVIDIA GPU AI – Very fast GPU-based denoiser. Available only on NVIDIA GPUs when the optional NVIDIA AI Denoiser Corona component has been installed. Intel CPU /GPU AI – (also known as Intel Open Image Denoiser) Fast denoising filter applied when render ends. It is a CPU-based denoiser, running on both Intel and AMD CPUs. It does not have any additional requirements to be executed; if the CPU runs Corona, it can run this denoiser. It is slower than NVIDIA GPU AI denoiser, but can achieve better quality.
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In Corona 11, the Intel AI denoiser is supported only by Windows-based systems and its GPU mode only works on NVIDIA GPUs.
High Quantity – A more memory and CPU-intensive filter that removes all random noise from the image, creating a noise-free image considerably faster than waiting for the rendering to converge.
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NVIDIA GPU AI mode is not suitable for denoising animation.
Denoise Radius – Controls the radius of the denoising blurring.
