TencentSmartTopologyNode - ComfyUI Built-in Node Documentation

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

This node performs smart retopology on a 3D model, automatically creating a new, cleaner mesh with optimized polygon count. It connects to a Tencent Hunyuan 3D API to process the model, supporting GLB and OBJ file formats up to 200MB. The node returns the processed model as an OBJ file.

Inputs

Parameter	Description	Data Type	Required	Range
model_3d	Input 3D model (GLB or OBJ). The file must be in GLB or OBJ format and cannot exceed 200MB.	FILE3D	Yes	-
polygon_type	Surface composition type.	STRING	Yes	"triangle" "quadrilateral"
face_level	Polygon reduction level.	STRING	Yes	"medium" "high" "low"
seed	Seed controls whether the node should re-run; results are non-deterministic regardless of seed. (default: 0)	INT	No	0 to 2147483647

Note: The seed parameter is used to trigger a re-run of the node, but the final output is not guaranteed to be the same for the same seed value.

Outputs

Output Name	Description	Data Type
OBJ	The processed 3D model with optimized topology, returned in OBJ format.	FILE3D

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