Rendering progress preview with tev

[iXialumy]

Hey @wahn ,
It finally happened.
I found time again to work on communication with tev.
This definitely is just a barely working prototype, but it can actually display progress while rendering.
It is just full of unwraps that should be handled properly and many things are done in a very un-rust way, but we have something that works somewhat.
At the moment the values sent to tev are not scaled properly and I would love to work on fixing and improving from here on with you together if you can find time.

[wahn]

Hey @iXialumy,
Sorry for the long delay. I looked at your pull request and because the main development happens now on sourcehut I created a tev branch there and checked in a slightly modified version of your PR. I don't know how to give you credit for your work (so that's it's visible here at GitHub), but I wanted to let you know that I finally started to integrate your PR into one of the next versions of rs_pbrt!
Thanks,
Jan

[wahn]

See https://www.janwalter.org/rnd/blog/rnd-pbrt-tev-001/ for a start ...

[iXialumy]

Hey @wahn,
No problem for the delay, I took a long time too.
I think we should discuss a few things before merging this pr first, because I think the logic is not at the right place at the moment.
Currently it is in the integrator, but I feel like this is not the best place for the architecture we currently have.
On the other hand I am not sure I understand the architecture well enough for that yet.

We can work on sourcehut too, but I don't know the workflow of communication and working together on an issue yet.
Let me know if you would be open to looking into that with me.
Thanks,
iXialumy

[wahn]

I'm not that familiar with the sourcehut workflow yet, but there is a mailing list to discuss rs-pbrt related things:
https://lists.sr.ht/~wahn/rs-pbrt-discuss
I think your email client has to be configured to use plain text emails, but that should be all ...