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IVROverlay::SetOverlayAlpha

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Joe Ludwig edited this page Aug 17, 2015 · 2 revisions

VROverlayError SetOverlayAlpha( VROverlayHandle_t ulOverlayHandle, float fAlpha )

VROverlayError GetOverlayAlpha( VROverlayHandle_t ulOverlayHandle, float *pfAlpha )

Sets/gets the alpha of the overlay quad. Use 1.0 for 100 percent opacity and 0.0 for 0 percent opacity.

  • VROverlayHandle_t ulOverlayHandle - Overlay to get/set alpha for
  • float fAlpha - Alpha value to set. This should be a value between 0 (fully transparent) and 1.0 (fully opaque).
  • float *pfAlpha - Receives the current alpha value of the overlay
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