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# cp_view_texture_map_t

A type that provides details about the textures associated with a view.

```
typedef struct cp_view_texture_map * cp_view_texture_map_t;
```

## Discussion

A texture map helps you locate the content for a specific view within a texture. Texture maps are especially important when a layer uses a single texture to manage multiple views. For example, a head-mounted display might store the images for both the left and right eyes in a single texture. Pass this type to other functions to get specific details about the current texture, such as its view bounds or its index into a texture array.

## Topics

### Getting the viewport

[`var viewport: MTLViewport`](/documentation/CompositorServices/LayerRenderer/Drawable/View/TextureMap-swift.struct/viewport)

The portion of the texture that the view uses to draw its content.

### Getting the texture indices

[`var sliceIndex: Int`](/documentation/CompositorServices/LayerRenderer/Drawable/View/TextureMap-swift.struct/sliceIndex)

The index of the view’s texture in an array-based texture type.

[`var textureIndex: Int`](/documentation/CompositorServices/LayerRenderer/Drawable/View/TextureMap-swift.struct/textureIndex)

The index of the view’s textures in the drawable.


---

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