# Abs Outputs the per-channel absolute value of the input. ## Parameter Types **Abs (float):** |Input|Type | |-----|-----| |`In` |Float| |Output|Type | |------|-----| |`Out` |Float| **Abs (vector2f):** |Input|Type | |-----|--------| |`In` |Vector2f| |Output|Type | |------|--------| |`Out` |Vector2f| **Abs (half):** |Input |Type| |------|----| |`In` |Half| |`Low` |Half| |`High`|Half| |Output|Type| |------|----| |`Out` |Half| **Abs (vector2h):** |Input |Type | |------|--------| |`In` |Vector2h| |`Low` |Vector2h| |`High`|Vector2h| |Output|Type | |------|--------| |`Out` |Vector2h| **Abs (color3f):** |Input|Type | |-----|-------------| |`In` |Color3| |Output|Type | |------|-------------| |`Out` |Color3| **Abs (vector3h):** |Input |Type | |------|--------| |`In` |Vector3h| |`Low` |Vector3h| |`High`|Vector3h| |Output|Type | |------|--------| |`Out` |Vector3h| **Abs (vector4h):** |Input |Type | |------|--------| |`In` |Vector4h| |`Low` |Vector4h| |`High`|Vector4h| |Output|Type | |------|--------| |`Out` |Vector4h| **Abs (integer):** |Input|Type | |-----|-----| |`X` |Int32| |Output|Type | |------|-----| |`Out` |Int32| **Abs (vector3f):** |Input|Type | |-----|--------| |`In` |Vector3f| |Output|Type | |------|--------| |`Out` |Vector3f| **Abs (vector4f):** |Input|Type | |-----|--------| |`In` |Vector4f| |Output|Type | |------|--------| |`Out` |Vector4f| **Abs (color4f):** |Input|Type | |-----|-------------| |`In` |Color4| |Output|Type | |------|-------------| |`Out` |Color4| --- 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)