MTLSamplerAddressMode.mirrorRepeat
Between -1.0 and 1.0, the texture coordinates are mirrored across the axis; outside -1.0 and 1.0, the image is repeated.
Declaration
case mirrorRepeatBetween -1.0 and 1.0, the texture coordinates are mirrored across the axis; outside -1.0 and 1.0, the image is repeated.
case mirrorRepeat