# MTLSamplerAddressMode Modes that determine the texture coordinate at each pixel when a fetch falls outside the bounds of a texture. ``` enum MTLSamplerAddressMode ``` ## Topics ### Address mode options [`MTLSamplerAddressMode.clampToEdge`](/documentation/Metal/MTLSamplerAddressMode/clampToEdge) Texture coordinates are clamped between `0.0` and `1.0`, inclusive. [`MTLSamplerAddressMode.mirrorClampToEdge`](/documentation/Metal/MTLSamplerAddressMode/mirrorClampToEdge) Between `-1.0` and `1.0`, the texture coordinates are mirrored across the axis; outside `-1.0` and `1.0`, texture coordinates are clamped. [`MTLSamplerAddressMode.repeat`](/documentation/Metal/MTLSamplerAddressMode/repeat) Texture coordinates wrap to the other side of the texture, effectively keeping only the fractional part of the texture coordinate. [`MTLSamplerAddressMode.mirrorRepeat`](/documentation/Metal/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. [`MTLSamplerAddressMode.clampToZero`](/documentation/Metal/MTLSamplerAddressMode/clampToZero) Out-of-range texture coordinates return transparent zero `(0,0,0,0)` for images with an alpha channel and return opaque zero `(0,0,0,1)` for images without an alpha channel. [`MTLSamplerAddressMode.clampToBorderColor`](/documentation/Metal/MTLSamplerAddressMode/clampToBorderColor) An address mode that returns the sampler’s border color. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)