RenderSplat - ComfyUI Built-in Node Documentation

Render a gaussian splat as an image using an anisotropic EWA rasterizer with oriented elliptical splats, antialiasing, and depth-sorted front-to-back rendering. The camera comes from a camera_info input, or you can leave it empty to auto-frame the splat. Set frames greater than 1 for a turntable batch of images to feed a Video node.

Inputs

Parameter	Description	Data Type	Required	Range
`splat`	The gaussian splat data to render	SPLAT	Yes	-
`width`	Width of the output image (default: 1024)	INT	Yes	64 to 2048 (step: 8)
`height`	Height of the output image (default: 1024)	INT	Yes	64 to 2048 (step: 8)
`frames`	Number of frames to render. -1, 0, or 1 produces a single still image. Values greater than 1 create a turntable animation where the camera orbits over a full 360 degree turn. Negative values orbit in the opposite direction (default: 1)	INT	Yes	-240 to 240
`splat_scale`	Multiplier on each splat’s projected footprint. Lower values produce crisper points, higher values produce softer and fuller surfaces (default: 1.0)	FLOAT	Yes	0.1 to 5.0 (step: 0.05)
`sharpen`	Controls sharpness of overlapping splats. A value of 1.0 gives physically-correct blending. Values above 1.0 bias each pixel toward its dominant (nearest) splat for crisper texture without shrinking splats or opening gaps (default: 2.0)	FLOAT	Yes	1.0 to 8.0 (step: 0.5)
`headlight_shading`	Diffuse shading from a light at the camera position, using the splat surfel normals. Darkens surfaces that turn away from view to reveal form and curvature. 0 gives flat albedo, 1 gives strongest shading (default: 0.0)	FLOAT	Yes	0.0 to 3.0 (step: 0.05)
`opacity_threshold`	Culls gaussians with opacity below this threshold, which removes faint floaters (default: 0.0)	FLOAT	Yes	0.0 to 1.0 (step: 0.01)
`render_style`	What the image output shows. Options are: color (full color rendering), clay (neutral-albedo shaded), depth (near objects appear bright), normal (OpenGL normal map) (default: “color”)	COMBO	Yes	”color" "clay" "depth" "normal”
`background`	Solid background color for the render (default: #000000)	COLOR	Yes	-
`bg_image`	Optional background plate composited behind the splat. Overrides the solid background color. Resized to the render size. A batch of images is used per frame, a single image is used for all frames. Only works with color and clay render styles	IMAGE	No	-
`camera_info`	Camera to render from. Can come from a Load3D, Preview3D, or Create Camera Info node. If empty, the splat is auto-framed from a default 3/4 view	CAMERA_3D	No	-

Outputs

Output Name	Description	Data Type
`image`	The rendered image of the gaussian splat	IMAGE
`mask`	The alpha mask of the rendered splat	MASK

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