Metal HUD Display Value Range

Graphics & Games Metal
peterwong7 OP
Created Sep ’25
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Can't seem to get the Metal HUD to display value range's (pre 26 Tahoe). The documented environment variable MTL_HUD_SHOW_VALUE_RANGE doesn't seem to work.

https://developer.apple.com/documentation/xcode/monitoring-your-metal-apps-graphics-performance#Display-the-value-range-of-metrics

Anyone having any luck?

Answered by DTS Engineer in 859355022

Hello,

Thank you for mentioning and clarifying macOS version 26.

I tried using MTL_HUD_SHOW_VALUE_RANGE and MTL_HUD_ENABLED with Xcode 26.0.1 on macOS 26.0 (25A354) and was likewise unable to see value ranges.

Please send us a bug report.

Note: you can see value ranges by enabling the Show Metrics Value Range option in the configuration panel (confirmed working).

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peterwong7 OP
Sep ’25

Edit: "(MacOS 26 Tahoe)"

I have no idea why I wrote "pre 26 Tahoe" 🤷

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DTS Engineer OP
Apple
Sep ’25
Recommended

Hello,

Thank you for mentioning and clarifying macOS version 26.

I tried using MTL_HUD_SHOW_VALUE_RANGE and MTL_HUD_ENABLED with Xcode 26.0.1 on macOS 26.0 (25A354) and was likewise unable to see value ranges.

Please send us a bug report.

Note: you can see value ranges by enabling the Show Metrics Value Range option in the configuration panel (confirmed working).

0
Metal HUD Display Value Range
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