# Inspecting sampler states Verify your sampler state configurations by examining their properties. ## Overview The Metal debugger allows you to inspect a sampler state with the Sampler State viewer. After opening a sampler state, you can view its associated properties and preview the sampling behavior. For more information, see [Inspecting the bound resources for a command](/documentation/Xcode/Inspecting-the-bound-resources-for-a-command) or [Analyzing memory usage](/documentation/Xcode/Analyzing-memory-usage). ### Navigate your sampler state The Sampler State viewer shows the properties of your sampler state on the left (as configured by ) and a preview on the right. The preview illustrates how pixels in a texture appear when using your sampler state.  The square region in the center of the preview corresponds to UV coordinates within the range of `0.0` to `1.0`.  You can use the preview to quickly verify the configuration for your sampler state. For example, if you want a texture to mirror, but it’s drawing a constant value instead, you can check the sampler state. In the screenshot below, the sampler state is configured to clamp to a border color that’s opaque black, rather than using mirror repeat as the address mode:  ### Try various combinations The properties you configure when creating a sampler state determine how a texture looks when sampling it. The properties related to filtering control how pixels combine when the sample footprint is either larger or smaller than a pixel, or when it’s between mipmap levels. The address mode determines the texture coordinate at each pixel when a read falls outside the bounds of a texture. You can try using different combinations of filtering and addressing modes until you achieve your desired look. |Properties |Preview | |----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |, | | |, | | |, | | |, | | |, | | |, , | | |, , | | |, , || |, | | |, | | |, | | |, | | |, | | |, , | | |, , | | |, , | | --- 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)