Hunyuan3D-2.2-mrp-MLX/hy3dpaint/utils/simplify_mesh_utils.py
modelbeast e4cfa9d1e9 Clean MLX build for MODELBEAST (inference-only)
Fork of dgrauet/Hunyuan3D-2.1-mlx + our generate_e2e.py CLI, env-tunable
remesh (HY3D_REMESH_FACES), and HARDWARE.md. Upstream training data
(mini_trainset) and demo images stripped — inference needs none of it.
Full upstream history: github.com/dgrauet/Hunyuan3D-2.1-mlx
2026-07-16 14:38:14 +10:00

47 lines
2.3 KiB
Python

# Hunyuan 3D is licensed under the TENCENT HUNYUAN NON-COMMERCIAL LICENSE AGREEMENT
# except for the third-party components listed below.
# Hunyuan 3D does not impose any additional limitations beyond what is outlined
# in the repsective licenses of these third-party components.
# Users must comply with all terms and conditions of original licenses of these third-party
# components and must ensure that the usage of the third party components adheres to
# all relevant laws and regulations.
# For avoidance of doubts, Hunyuan 3D means the large language models and
# their software and algorithms, including trained model weights, parameters (including
# optimizer states), machine-learning model code, inference-enabling code, training-enabling code,
# fine-tuning enabling code and other elements of the foregoing made publicly available
# by Tencent in accordance with TENCENT HUNYUAN COMMUNITY LICENSE AGREEMENT.
import os
import trimesh
import pymeshlab
def remesh_mesh(mesh_path, remesh_path):
# MODELBEAST: HY3D_REMESH_FACES env overrides the decimation target so the
# bake-mesh budget is tunable per node (Studio GPUs handle far more than the
# laptop-tuned 40k default). Additive — unset keeps upstream behavior.
target = int(os.environ.get("HY3D_REMESH_FACES", "40000"))
mesh = mesh_simplify_trimesh(mesh_path, remesh_path, target_count=target)
def mesh_simplify_trimesh(inputpath, outputpath, target_count=40000):
# 先去除离散面
ms = pymeshlab.MeshSet()
if inputpath.endswith(".glb"):
ms.load_new_mesh(inputpath, load_in_a_single_layer=True)
else:
ms.load_new_mesh(inputpath)
ms.save_current_mesh(outputpath.replace(".glb", ".obj"), save_textures=False)
# 调用减面函数
courent = trimesh.load(outputpath.replace(".glb", ".obj"), force="mesh")
face_num = courent.faces.shape[0]
if face_num > target_count:
# trimesh's simplify_quadric_decimation changed its signature:
# older versions took an integer face target as the first positional
# arg, newer ones expect `face_count=...` (first positional is
# `percent`, 0-1). Pass explicitly so either API works.
courent = courent.simplify_quadric_decimation(face_count=target_count)
courent.export(outputpath)