Hunyuan Polygen 1.5 is Tencent's intelligent retopology model that transforms high-polygon 3D meshes into optimized, game-ready geometry.
Unlike traditional graphics-based retopology, it uses an autoregressive mesh generation approach that directly learns quad topology end-to-end, producing cleaner continuous edge loops and superior wireframe quality.
The model supports three reduction levels (high, medium, low) and flexible output with both quadrilateral and triangular face types—adapting to soft-surface and hard-surface modeling workflows.
Designed for professional pipelines in game development, animation, and VR content creation, Polygen 1.5 significantly reduces late-stage cleanup costs while maintaining structural detail through its BPT (Blocked and Patchified Tokenization) compression. Input: GLB/OBJ 3D file. Output: Retopologized mesh with optimized edge flow.