只读COMPRESSED_RED_GREEN_RGTC2_EXT
COMPRESSED_RED_GREEN_RGTC2_EXT: number
只读COMPRESSED_RED_RGTC1_EXT
COMPRESSED_RED_RGTC1_EXT: number
只读COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT
COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: number
只读COMPRESSED_SIGNED_RED_RGTC1_EXT
COMPRESSED_SIGNED_RED_RGTC1_EXT: number