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Asset Transformer SDK

2026.1

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  1. Asset Transformer SDK (ex Pixyz)

Loop Subdivision

Subdivide triangular meshes
Read time 1 minute
Last updated 9 months ago
API function: algo.loopSubdivMesh.
Considering a surfacic mesh solely composed of triangles (ie, no quadrilaterals), this function applies the one-step Loop Subdivision algorithm in which each triangle is subdivided into four smaller ones. Vertices are positioned to create a smooth subdivision surface. This function is applied recursively D times, where D is the subdivision depth (see parameters).
A low-poly meshLoop Subdivision (depth D=1)Loop Subdivision (depth D=2)
Important
If the mesh has non-triangular surfacic elements (i.e., quadrilaterals), the function will not do anything. See algo.triangularize.

Sharp edges

The subdivision preserves edge sharpness along the surface border: after topological subdivision, vertices are placed so as to preserve edge sharpness (following section 2.1 of this paper).
Sharp border edgesD=1D=2

Parameters

Occurrences

List of occurrences to process.

Depth

The subdivision depth. Determines the number of recursive subdivision steps applied to each triangle.
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    • Sharp edges

    • Parameters

      • Occurrences

      • Depth

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