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IVROverlay::SetOverlayAlpha
Joe Ludwig edited this page Aug 17, 2015
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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.
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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