My latest "NDI doodle" is a 4-way colour-gradient pattern generator which transmits the image via NewTek's NDI.

It uses selectable colours for each of the four corners of the rectangle, although pairs can be set to the same value in order to achieve a simple 2-way gradient. The gradient image can either remain static or the colours can rotate in a clockwise (CW) or anticlockwise (CCW) direction. A slider control adjusts the period between colour changes (i.e. faster rotational speed as the slider moves to the right).

The gradient image can either fill the screen, be horizontally (H-Split) or vertically mirrored (V-Split) as two half-size rectangles, or be mirrored both horizontally and vertically (in Quad mode) using quarter-size rectangles. The Cloud overlay option adds a fixed fractal noise pattern, self-keyed over the background.

v1.0.0.2 is available to download from my zenvideo website (replaced by v1.0.0.3 on 14-Mar-2017)

Well, you don't have to pay me anything to download or use the current version, so in that sense it's free.
As for the watermark logo, for typical presenter-to-camera usage I'm guessing that it will get blocked out anyway, but I may well remove it at some point.

I also like it, very nice to get a live background very quickly. We are of course capable of zooming a bit on the input in vMix to get rid of the watermark, but I wonder why it is there anyways when there is no way to buy a license to get rid of it. So please remove it, or give us the option to pay you some money for the removal.
Also, resolutions above 1920x1080 do not work for me. Is this how it is at the moment or is there something wrong at my end?

Great! Thanks Martin.

Why don't you make it a donationware software? Your tools are worth the money!

Guillaume

Thanks for this, please make a donation possible.
It would be good to be able to use stills as well as colours.

I thought adding texture frames and then animating them with rotation could make an interesting source.

A vMix snapshot could be one input of something that recently happened and then coloured / animated. An option to use the last snapshot could auto update this or the last four snapshots. Graphic frames designed for this could be another way to highlight elements.

On other mixers I used very soft edge slow rotating wipes as a way to animate graphics / live sources / border fills. A bit old hat but playing around can make some different effects.

vMix now has audio plugins, it now needs some video plugs.

thanks