61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
#!/usr/bin/env python3
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# Description: Convert OBJ to JSON
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# Usage: python3 obj-to-json.py file.obj
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# Author: Justin Oros
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# Source: https://github.com/JustinOros
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import json
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import os
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import sys
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class OBJExporter:
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def __init__(self, filename):
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self.vertices = []
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self.faces = []
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self.normals = []
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self.parse(filename)
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def parse(self, filename):
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with open(filename, 'r') as f:
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for line in f:
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if line.startswith('v '):
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parts = line.strip().split()
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self.vertices.append(list(map(float, parts[1:4])))
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elif line.startswith('vn '):
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parts = line.strip().split()
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self.normals.append(list(map(float, parts[1:4])))
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elif line.startswith('f '):
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face = []
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for vert in line.strip().split()[1:]:
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v_idx = vert.split('/')[0]
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face.append(int(v_idx)-1)
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self.faces.append(face)
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def export_to_json(self, out_filename):
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data = {
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'vertices': self.vertices,
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'faces': self.faces,
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'normals': self.normals
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}
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with open(out_filename, 'w') as f:
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json.dump(data, f)
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print(f"Exported {out_filename}")
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if __name__ == "__main__":
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if len(sys.argv) != 2:
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print(f"Usage: {sys.argv[0]} <obj-file>")
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sys.exit(1)
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obj_file = sys.argv[1]
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if not os.path.isfile(obj_file):
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print(f"File not found: {obj_file}")
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sys.exit(1)
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base_name = os.path.splitext(obj_file)[0]
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json_file = f"{base_name}.json"
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exporter = OBJExporter(obj_file)
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exporter.export_to_json(json_file)
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