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				diff(max_val - min_val) {}
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				diff(max_val - min_val) {}
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			void operator()(const CGLA::Vec3i& pi, const float& vox_val)
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			void operator()(const CGLA::Vec3i& pi, const float& vox_val)
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				{
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				{
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					float scaled = (vox_val-min_val) / diff;
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					float scaled = (vox_val-min_val) / diff;
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					float clamped = 255.0f *(CGLA::s_min(1.0f,CGLA::s_max(0.0f,scaled)));
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					float clamped = 255.0f *(std::min(1.0f,std::max(0.0f,scaled)));
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					unsigned char x = static_cast<unsigned char>(clamped);
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					unsigned char x = static_cast<unsigned char>(clamped);
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					of.write((char*) &x, 1);
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					of.write((char*) &x, 1);
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				}
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				}
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		};
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		};
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