Yup, depends on the projector. Some are perfectly OK flying sideways, others will have heat flow issues and you can destroy them quickly.
The only other issue is now you're scanning vertically instead of horizontally. This may make videos look slightly different, although most won't notice.
I will probably zoom & crop because now there's talk of some imag on those portrait screens and I don't want to have to deal with sideways cameras -especially when they will also have time on the main normal landscape screen.
Is there a simple device that can rotate the picture from the cams? (we will be using a BMD constellation 2M/E switcher)
-because I still like the idea of projecting sideways at full resolution
And I won't have to have the projectors as far back to fill those screens.
-regarding the scanning issue, I didn't think there was raster type scanning going on anymore with pixel-based projectors? Thought it was more GPU-based bit-mapping?
It looks fine on a large 85" TV so wouldn't think any different on a projector.
Thanks for all the advise, I will thoroughly explore the heat flow issues and upgrade to laser units if needed.