ChromaRadianceOptions - ComfyUI Built-in Node Documentation

Complete documentation for the ChromaRadianceOptions node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The ChromaRadianceOptions node allows you to configure advanced settings for the Chroma Radiance model. It wraps an existing model and applies specific options during the denoising process based on sigma values, enabling fine-tuned control over NeRF tile size and other radiance-related parameters.

Inputs

Parameter	Data Type	Input Type	Default	Range	Description
model	MODEL	Required	-	-	The model to apply Chroma Radiance options to
preserve_wrapper	BOOLEAN	Optional	True	-	When enabled, will delegate to an existing model function wrapper if it exists. Generally should be left enabled.
start_sigma	FLOAT	Optional	1.0	0.0 - 1.0	First sigma that these options will be in effect.
end_sigma	FLOAT	Optional	0.0	0.0 - 1.0	Last sigma that these options will be in effect.
nerf_tile_size	INT	Optional	-1	-1 and above	Allows overriding the default NeRF tile size. -1 means use the default (32). 0 means use non-tiling mode (may require a lot of VRAM).

Note: The Chroma Radiance options only take effect when the current sigma value falls between end_sigma and start_sigma (inclusive). The nerf_tile_size parameter is only applied when set to 0 or higher values.

Outputs

Output Name	Data Type	Description
model	MODEL	The modified model with Chroma Radiance options applied