drewcassidy/nvidia-texture-tools
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Implement quantization.

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castano
2011-01-25 09:17:53 +00:00
parent 95b5e1decd
commit 12bf7f9346
3 changed files with 126 additions and 45 deletions
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16
src/nvtt/Context.cpp
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@ -341,21 +341,19 @@ void Compressor::Private::quantize(TexImage & img, const CompressionOptions::Pri
{
if (compressionOptions.enableColorDithering) {
if (compressionOptions.format >= Format_BC1 && compressionOptions.format <= Format_BC3) {
img.quantize(0, 5, true);
img.quantize(1, 6, true);
img.quantize(2, 5, true);
img.quantize(0, 5, true, true);
img.quantize(1, 6, true, true);
img.quantize(2, 5, true, true);
}
else if (compressionOptions.format == Format_RGB) {
img.quantize(0, compressionOptions.rsize, true);
img.quantize(1, compressionOptions.gsize, true);
img.quantize(2, compressionOptions.bsize, true);
img.quantize(0, compressionOptions.rsize, true, true);
img.quantize(1, compressionOptions.gsize, true, true);
img.quantize(2, compressionOptions.bsize, true, true);
}
}
if (compressionOptions.enableAlphaDithering) {
if (compressionOptions.format == Format_RGB) {
img.quantize(0, compressionOptions.rsize, true);
img.quantize(1, compressionOptions.gsize, true);
img.quantize(2, compressionOptions.bsize, true);
img.quantize(3, compressionOptions.asize, true, true);
}
}
else if (compressionOptions.binaryAlpha) {