Overlays mirrored when using Presentation mode in RV

Hello,

We are using overlays in RV to show data on screen of the Versions we are reviewing, but in our conference rooms when using rvsdi, in Presentation Mode, the overlays are displayed mirrored.
Do you know how to make it appeared in the correct way please?

Thank you

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Hi Caro,

Thanks for writing in, what version of RV are you using, and are you using the RVOverlay node or a different form of overlay?

Hi Michael,

Thanks for your answer :slight_smile:
We are using both RV 6 and 7 (6.2.8 and 7.2.6), and after a little investigation in our code, no sign of RVOverlay node but rather the use of the gl and glu module in a MU plugin

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Hi Caro,

How is your code going about doing the projection setup in your GL code?

in the HUD.mu code, you can see it sets up the render() method with:

setupProjection(w, h, event.domainVerticalFlip());

Are you seeing the mirroring over the vertical axis or the horizontal axis?
Projection devices might have different coordinate spaces, so flipping based on the currently rendered device allows you to have a uniform space.

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Hello Michael,

I’ll try the HUD.mu projection function to see how it goes between a regular computer and the projector.
I will let you know once I’ve tried (tho I’m going on holidays soon so I might be back not so soon)
Thanks again for your help!

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