Writing out data

[Sveinbjörn J. Tryggvason]

Hi, I was just thinking about creating a node that would write some data to disk (per frame) and I just started wondering what would be a clever way to do this. Should I just have a frame attribute that would control what frame is being written which would the result in data being written for every value 'frame' would get. Since the data write would happen in the update function. Or do you guys have any other neat ideas?

-svenni

[Andrea Interguglielmi]

Hi Svenni,

I'd suggest writing a simple python script to do that, if you have a node that constantly writes on disk you end up slowing the graph with no real gain I think.
You'd also need a way of pulling such node to trigger the update, so you'd end up needing a new thread constantly asking the node to evaluate.

[Sveinbjörn J. Tryggvason]

Of course. That makes waay more sense :)

I'll give that a whirl.

-svenni

["Sveinbjörn J. Tryggvason"]

Works like a charm - or sort of.

https://github.com/svenni/coral_plugins/tree/master/writer

-svenni

[Andrea Interguglielmi]

Good stuff Sveinbjörn, do you want to share how you are actually using coral in production? if it's pipeline or performance related?

Thanks,
Andrea

["Sveinbjörn J. Tryggvason"]

Actually I'm not. not yet at least. I've been having a hell of a time getting it to build on windows (which  we use) but I finally got it working. Ive been flirting with using it to do lighting in Arnold. Although that's still miles away. We are sort of between projects right now I haven't had the chance to use it properly, I haven't even tried the maya plugin :$

Is anyone else using it for production (or thinking about it?)

-Svenni