50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
#!/usr/bin/env python3
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"""
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批量压缩 Assets/Model 下的大尺寸 PNG 贴图
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将 4096x4096 缩小到 2048x2048，并优化文件大小
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"""
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import os
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from PIL import Image
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from pathlib import Path
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def compress_texture(filepath, max_size=2048):
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"""压缩单个贴图文件"""
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try:
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img = Image.open(filepath)
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original_size = os.path.getsize(filepath)
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# 如果图片大于目标尺寸，缩放
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if img.width > max_size or img.height > max_size:
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img.thumbnail((max_size, max_size), Image.Resampling.LANCZOS)
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print(f" 缩放: {img.width}x{img.height}")
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# 优化并保存
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img.save(filepath, 'PNG', optimize=True, compress_level=9)
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new_size = os.path.getsize(filepath)
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saved_mb = (original_size - new_size) / (1024 * 1024)
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print(f" 节省: {saved_mb:.2f} MB ({original_size/(1024*1024):.2f} -> {new_size/(1024*1024):.2f} MB)")
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return saved_mb
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except Exception as e:
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print(f" 错误: {e}")
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return 0
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def main():
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assets_path = Path("Assets/Model")
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total_saved = 0
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processed = 0
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# 查找所有超过 10MB 的 PNG 文件
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for png_file in assets_path.rglob("*.png"):
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file_size = png_file.stat().st_size
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if file_size > 10 * 1024 * 1024: # 10 MB
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print(f"\n处理: {png_file.name}")
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saved = compress_texture(str(png_file))
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total_saved += saved
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processed += 1
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print(f"\n完成! 处理了 {processed} 个文件，共节省 {total_saved:.2f} MB")
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if __name__ == "__main__":
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main()
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