So as you can imagine have complex models rendered at great detail takes along time. Does anyone have an idea of how to explain this to a supervisor to prevent any tension.
Most people have no idea the time involved with producing good (or great) quality images. It doesn't matter what rendering software you use (yes some are better than others) to acheive a nice image takes time. To achieve a great image takes more time. I would try to walk them thru the steps to show them what's involved with the process. Not only the set up but the render processing time as well. I think that's the best you can do. Good luck.
A lot of companies don't like dedicating too much of an employees time or their hardware to rendering creation. That's why they contact me I guess
Why should there be any tension? Photo-realistic rendering involves lots of indirect lighting calculations. It's a progressive process that can take a long time to complete. It's entirely a matter of the number and speed of your availble CPU cores and has nothing to do with the designer.
If your supervisor is holding your feet to the fire over rendering times, he probably blames the cahsier at the 7-11 for how long it takes to fill up his tank.
Usually, what breaks the tension are the results. Caustics, reflections, refractions and normal maps increase the number of calculations geometrically particuarly if you use HDR lighting or volumetric effects. So if you're rendering a ride at a state fair, it's going to take a lot longer than if your rendering a plastic part in a shadow box. However, when you show that product that was a napkin sketch is a real thing that you'll be able to touch and feel, that's the moment your supervisor buys into the product and you can send that enthusiasm right up the org-chart.
Let him watch the paint drying and tell him the cost of upgrading rendering software or buying one of those BOXX render doo dads
If you can - set up renders to occur overnight.
In general, I would not use a production machine for renders that take significant time.
Retrieving data ...