SplatToMesh - ComfyUI Built-in Node Documentation

This node converts a 3D Gaussian splat into a colored mesh surface. It works by rasterizing the gaussians onto a density grid, extracting an iso-surface at a chosen density level, and then applying optional smoothing and cleanup to produce a clean, colored triangle mesh.

Inputs

Parameter	Description	Data Type	Required	Range
`splat`	The input gaussian splat to convert to a mesh	SPLAT	Yes	-
`resolution`	Density-grid resolution along the longest axis. Higher values produce finer surface detail but require more VRAM and processing time (grows with resolution^3). Default: 384	INT	Yes	64 - 768 (step 16)
`kernel`	Maximum splat half-width in voxels. Each gaussian is rasterized over a window sized to its own 3-sigma, capped at this value. Small surfels stay cheap while large ones aren’t truncated. Raise if sparse splats leave gaps. Default: 5	INT	Yes	1 - 8
`smooth`	Taubin mesh-smoothing iterations. Smooths the surface without shrinking it (volume-preserving), unlike blurring the density. 0 means no smoothing. Default: 0	INT	Yes	0 - 60
`level`	Iso-surface level. Auto-picked by Otsu thresholding; this value biases the auto-pick (1.0 = auto, lower values produce fatter/more-connected surfaces, higher values produce thinner/tighter surfaces). Default: 0.4	FLOAT	Yes	0.0 - 2.0 (step 0.01)
`min_component`	Drops connected components smaller than this many vertices. Removes detached floater blobs and the inner shell of double walls. 0 keeps all components. Default: 500	INT	Yes	0 - 100000 (step 50)
`min_opacity`	Ignores gaussians fainter than this value before meshing. Default: 0.02	FLOAT	Yes	0.0 - 1.0 (step 0.01)
`color_sharpen`	Crisps up the vertex texture. 1.0 gives physically-correct blend; higher values bias each voxel’s color toward its dominant gaussian instead of averaging neighbors (de-smears the texture). Affects color only, not geometry. Default: 2.0	FLOAT	Yes	1.0 - 8.0 (step 0.5)

Outputs

Output Name	Description	Data Type
`mesh`	The extracted colored mesh with unlit rendering (emissive-like) to match the splat appearance	MESH

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​Inputs

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Inputs

Outputs