libsquish

Library for compressing images with the DXT standard

brewmacoslinux

Try with needOr install directly

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Library for compressing images with the DXT standard

squish

Compress an image to DXT1 format$ squish -compress dxt1 input.png output.dds

Compress an image to DXT5 format with high quality$ squish -compress dxt5 -quality high input.png output.dds

Decompress a DDS image back to PNG$ squish -decompress input.dds output.png