26 lines
1.3 KiB
Python
26 lines
1.3 KiB
Python
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"""Convert supplied glossiness data to roughness; configure GPU-ready imports."""
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from pathlib import Path
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from PIL import Image, ImageOps
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import re
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ROOT = Path(__file__).resolve().parents[1]
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DIRECTORY = ROOT / 'assets/textures/operators'
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for source in DIRECTORY.glob('*_Glossiness.png'):
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destination = source.with_name(source.name.replace('_Glossiness', '_Roughness'))
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if not destination.exists():
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# Linear data channel conversion: roughness = 1 - glossiness, no gamma.
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with Image.open(source) as image:
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ImageOps.invert(image.getchannel('R') if 'R' in image.getbands() else image.convert('L')).save(destination)
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for source in DIRECTORY.glob('*.png'):
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metadata = source.with_suffix('.png.import')
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if not metadata.exists():
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continue # Run again after Godot creates the first import record.
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content = metadata.read_text(encoding='utf-8')
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params = {'compress/mode': '2', 'mipmaps/generate': 'true',
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'compress/normal_map': '1' if '_Normal' in source.name else '2',
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'process/hdr_as_srgb': 'false', 'process/size_limit': '4096'}
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for key, value in params.items():
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content = re.sub(r'^' + re.escape(key) + r'=.*$', key + '=' + value, content, flags=re.M)
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metadata.write_text(content, encoding='utf-8')
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print('Operator texture maps ready')
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