As one of Vuo's developers, I work on Vuo's engine (the thing that makes compositions run), work on nodes, and write documentation. You'll see me on the forums answering people's questions about Vuo.
I enjoy using Vuo to make live music visuals. My hope for Vuo is that it will grow into a community of people of diverse backgrounds and identities making lots of different artistic, useful, unique, goofy, beautiful, crafty, wonderful compositions.
Estoy practicando para ser competente en español. Si publicas en el foro en español, trataré de responder en la misma manera.
Not that I know of. It could be done if there were an Invert Transform node (matrix inverse) and a Transform Point node (applies a transform to a point, and outputs the transformed point). Converted your question to a feature request, opened for voting.
Hint to anyone who might want to implement these nodes yourself: There are already functions to invert a matrix and transform a point in type/VuoTransform.h.
If your computer has enough VRAM, and if your Blackmagic device supports it, you could accomplish this using the attached Vuo composition. It stores up the video frames as they come in, then starts passing them along to output after a delay.
7 seconds of stored video frames at 1080p is about 3.5 GB. You'd probably want a system with twice that to be safe (leaving room for Vuo's input and output buffers, and system buffers). The high-end Mac Pro only has 6 GB of VRAM; the baseline iMac Pro has 8 GB of VRAM, so I'd recommend the latter.
Does the Blackmagic Intensity Pro 4K support full-duplex (simultaneous input and output)? If not, you'd need to replace the Send Blackmagic Video node with a Render Image to Window node to play back on the computer.
mic (@cremaschi), are you sure that Get Mesh Values is the problem? And you have the latest version of co.parabox.nodes.vuonode? I was able to run a small composition containing Get Mesh Values in Vuo 1.2.7.