# reprojection

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.ImageMath.method-reprojection/

reprojection

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## Declaration

static func reprojection(aspect: Float, fovRadians: Float, zNear: Float, zFar: Float, referenceView: matrix_float4x4, targetView: matrix_float4x4, backProjectionDistance: Float = 0.9) -> matrix_float3x3

#### Summary

Returns a 3x3 homography matrix as matrix_float3x3 that reprojects
image coordinates from a reference camera view into a target camera view.
The image coordinates are expected to be normalized [0..1].

#### Returns

A 3x3 homography matrix in column-major order.

### Parameters

| Name | Type | Summary |
| --- | --- | --- |
| aspect | Float | The aspect ratio of the image (width / height). |
| fovRadians | Float | The vertical field of view in radians. |
| zNear | Float | Near clipping plane distance. |
| zFar | Float | Far clipping plane distance. |
| referenceView | matrix_float4x4 | The reference camera view. |
| targetView | matrix_float4x4 | The target camera view. |
| backProjectionDistance | Float | Depth at which to reproject, normalized between clipping planes near (0) and far (1). Recommended: 0.9. |

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