只读COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT
COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT: number
只读COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT
COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT: number
只读COMPRESSED_RGBA_BPTC_UNORM_EXT
COMPRESSED_RGBA_BPTC_UNORM_EXT: number
只读COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT
COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT: number