HolographicQuadLayerUpdateParameters.UpdateViewport(Rect) Method
Definition
Important
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Updates the viewport rectangle within the quad layer's texture that will be displayed to the screen.
public:
virtual void UpdateViewport(Rect value) = UpdateViewport;void UpdateViewport(Rect const& value);public void UpdateViewport(Rect value);function updateViewport(value)Public Sub UpdateViewport (value As Rect)Parameters
- value
- Rect
The viewport rectangle.
Remarks
By default, quad layers display the full contents of the texture buffer to fill the specified extents. If the app fills the buffer with a texture atlas, it can then specify a viewport to fill the quad layer with just a subset of the image.
For example, if the quad layer is used to display a reticle, the app can fill the texture buffer with one texture containing four reticle images. The app can then change just the viewport rectangle to select among those four images.