---
title: horizontalDisparityAdjustment
framework: corevideo
role: symbol
role_heading: Type Property
path: corevideo/cvimagebufferattachmentkeydefinitions/horizontaldisparityadjustment
---

# horizontalDisparityAdjustment

Indicates a relative shift of the left and right images, which changes the zero parallax plane.

## Declaration

```swift
static var horizontalDisparityAdjustment: CVAttachmentKeyDefinitionWithDefault<Self.ShouldPropagate, Int32> { get }
```

## Discussion

Discussion The value encoded in normalized image space is measured over the range of -10000 to 10000 mapping to the uniform range [-1.0…1.0]. The interval of 0.0 to 1.0 or 0 to 10000 maps onto the stereo eye view image width. The negative interval 0.0 to -1.0 or 0 to -10000 similarly map onto the stereo eye view image width. The default value of 0 is interpreted if this property is not set.