Sync refresh rates - steps in the beamer image

vvvv beta question
1

hello,

im having problems with a beamer projection.
when there is fast movement on the screen (beamer) you kinda can see how the image is build up …
looks like the image is cut in 4-5 horizontal stripes that have an edge to eath other …
the problem is not occuring if you test it on a monitor.
i thought its maybe something with the refresh rate of the beamer or the renderer or the sync of them?

any suggestions?

thanks

2

Yepp, thats the problem, out of sync.
Solutions: Take a fixed framerate in V4 which is a multiple of beamer rate like 25fps if beamer is running at 50hz. Gives you one edge only in fast areas.
Blur your content at this highspeed areas, assumed its a video.
To get it perfect you will need a graphic card and a beamer with sync, which isnt cheap.