---
title: "CVMetalTextureGetCleanTexCoords(_:_:_:_:_:)"
framework: corevideo
role: symbol
role_heading: Function
path: "corevideo/cvmetaltexturegetcleantexcoords(_:_:_:_:_:)"
---

# CVMetalTextureGetCleanTexCoords(_:_:_:_:_:)

Returns convenient normalized texture coordinates for the part of the image that should be displayed.

## Declaration

```swift
func CVMetalTextureGetCleanTexCoords(_ image: CVMetalTexture, _ lowerLeft: UnsafeMutablePointer<Float>, _ lowerRight: UnsafeMutablePointer<Float>, _ upperRight: UnsafeMutablePointer<Float>, _ upperLeft: UnsafeMutablePointer<Float>)
```

## Parameters

- `image`: A CoreVideo Metal texture-based image buffer.
- `lowerLeft`: An array that holds two float values. Upon return, the array contains the s and t texture coordinates for the lower left corner of the image.
- `lowerRight`: An array that holds two float values. Upon return, the array contains the s and t texture coordinates for the lower right corner of the image.
- `upperRight`: An array that holds two float values. Upon return, the array contains the s and t texture coordinates for the upper right corner of the image.
- `upperLeft`: An array that holds two float values. Upon return, the array contains the s and t texture coordinates for the upper left corner of the image.

## Discussion

Discussion This function automatically takes into account whether or not the texture is flipped.

## See Also

### Inspecting Textures

- [CVMetalTextureGetTexture(_:)](corevideo/cvmetaltexturegettexture(_:).md)
- [CVMetalTextureIsFlipped(_:)](corevideo/cvmetaltextureisflipped(_:).md)
- [CVMetalTextureGetTypeID()](corevideo/cvmetaltexturegettypeid().md)