Implement ETC2_R and ETC2_RG compression

wolfpld / etcpak

The fastest ETC compressor on the planet

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Implement ETC2_R and ETC2_RG compression #37

Closed BlueCube3310 closed 8 months ago

BlueCube3310 commented 8 months ago

This change adds basic (8 bits per channel) support for EAC compression and decompression. The R/RG modes are selected by default when using either of the --ronly or --rgonly flags without --dxtc.

Quality comparison:

Original	ETC2_RGB	EAC	Diff (ETC2_RGB vs EAC)	Diff (EAC vs original)