ud18010andClaude Opus 4.8
60c83a3765
Blender Image.pixels 对 sRGB 贴图返回线性值，直接写 Non-Color PNG 会偏暗； 现按 Unity sRGB 导入预期编码 RGB，alpha（AO/透明）保持原值。附单元测试。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
24 lines
705 B
Python
24 lines
705 B
Python
import os
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import sys
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import unittest
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import numpy as np
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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import bl_convert as bc
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class TestBaseTextureEncoding(unittest.TestCase):
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def test_base_texture_rgb_is_encoded_as_srgb_and_alpha_is_preserved(self):
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rgba = np.array([[[0.0, 0.18, 0.5, 0.37]]], dtype=np.float32)
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encoded = bc.encode_base_texture_for_png(rgba)
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expected_rgb = np.array([0.0, 0.461356, 0.735357], dtype=np.float32)
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np.testing.assert_allclose(encoded[0, 0, :3], expected_rgb, rtol=0, atol=1e-5)
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self.assertAlmostEqual(float(encoded[0, 0, 3]), 0.37, places=6)
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if __name__ == "__main__":
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unittest.main()
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