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89 lines
2.8 KiB
89 lines
2.8 KiB
import os
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import sys
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import trimesh
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import mesh2sdf
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import numpy as np
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import time
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from tqdm import tqdm
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from concurrent.futures import ProcessPoolExecutor
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def process_mesh_to_sdf(
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filename:str,
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save_dir:str,
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idx: str,
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mesh_scale:int = 0.8
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size:int= 128
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level: int = None
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):
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if not level:
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level = 2 / size
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mesh = trimesh.load(filename, force='mesh')
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# normalize mesh
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vertices = mesh.vertices
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bbmin = vertices.min(0)
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bbmax = vertices.max(0)
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center = (bbmin + bbmax) * 0.5
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scale = 2.0 * mesh_scale / (bbmax - bbmin).max()
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vertices = (vertices - center) * scale
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# fix mesh
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t0 = time.time()
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sdf, mesh = mesh2sdf.compute(
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vertices, mesh.faces, size, fix=True, level=level, return_mesh=True)
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t1 = time.time()
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# sdf to x,y,z,sdf
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xyzsdf = np.zeros((size, size, size, 4))
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for x in range(size):
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for y in range(size):
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for z in range(size):
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xyzsdf[x, y, z] = [x, y, z, sdf[x, y, z]]
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# output
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mesh.vertices = mesh.vertices / scale + center
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name = filename.split('/')[-1][:-4]
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mesh.export(os.path.join(save_dir, filename[:-4] + '.fixed.obj'))
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np.save(os.path.join(save_dir, filename[:-4] + '.xyzsdf.npy'), xyzsdf)
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#mesh.export(filename[:-4] + '.fixed.obj')
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#np.save(filename[:-4] + '.npy', sdf)
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#print('It takes %.4f seconds to process %s' % (t1-t0, filename))
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return idx
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def mesh_to_sdf():
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dataset_dir = "/home/wch/data/abc"
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valid_id = []
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'''
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for i in tqdm(range(4025,10000)):
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internal_dir_name = f"{i:08d}"
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data_dir = os.path.join(dataset_dir, internal_dir_name)
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for name in os.listdir(data_dir):
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file = os.path.join(data_dir,name)
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if os.path.isfile(file) and name.endswith(".obj") and not name.endswith(".fixed.obj"):
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#process(file,data_dir)
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executor.submit(process, file, data_dir)
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valid_id.append(internal_dir_name)
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'''
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# 创建一个进程池
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with ProcessPoolExecutor(max_workers=5) as executor:
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futures = []
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for i in tqdm(range(4025, 10000)):
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internal_dir_name = f"{i:08d}"
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data_dir = os.path.join(dataset_dir, internal_dir_name)
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for name in os.listdir(data_dir):
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file = os.path.join(data_dir, name)
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if os.path.isfile(file) and name.endswith(".obj") and not name.endswith(".fixed.obj"):
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future = executor.submit(process, file, data_dir,internal_dir_name)
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futures.append(future)
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# 等待所有任务完成，并收集结果
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for future in tqdm(futures):
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valid_id.append(future.result())
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with open("/home/wch/data/abc/valid.txt", "w") as f:
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for idx in valid_id:
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f.write(idx+"\n")
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