EditorUtility.CompressTexture  

static function CompressTexture (texture : Texture2D, format : TextureFormat, quality : int) : void

Description

Compress a texture.

Use this function to explicitly compress a texture into specified format.

If you want to do texture compression in-game, use Texture2D.Compress function, which will use faster but lower quality DXT compression.

// Automatically Compress all imported textures to the project
// to RGB24

class MyTexturePostprocessor extends AssetPostprocessor {
    function OnPostprocessTexture (t : Texture2D) {
        EditorUtility.CompressTexture(t, TextureFormat.RGB24);
    }
}

static function CompressTexture (texture : Texture2D, format : TextureFormat, quality : TextureCompressionQuality) : void

Description