[David Johnson]

We do not have to be limited to Powerpoint. We also have a site license for ProPresenter, for which we can purchase an alpha keying plugin module. Might this be the solution I need to be looking at?

[David Johnson]

Thank you!

Here is a screenshot of the effect I have today:

To achieve the transparency, I put this image on the ATEM’s media player 2, used the media player as the alpha channel for luma keying on Key 1, and then used a powerpoint slide with the colored backdrop for the sermon series and lettering for the for the fill input.

This looks good because the background is dark, so the white words pop out well. However, the platform is not always dark. If you look closely, you will see that the black outline around the lettering disappears when it gets out of the space controlled by the alpha channel (we are luma keying, so it’s not really a surprise)

I would like to supply an alpha channel with the slides so that we can achieve the same effect on light backgrounds, and be able to use dark lettering and foregrounds where appropriate.

In order for this to be possible, we would need to create (and manage) distinct alpha backdrops for every slide in the set. I would prefer to keep this load on my key grip, leaving the technical director free to focus on the overall composition of the production.

Does this help?