Been modeling a lot more in polygons lately, and coming to the conclusion that modeling liquid in a glass and accounting for 3+ surfaces is a tad more difficult with polygons (and subdivision surfaces) than with NURBs/CAD based programs. That aside, I discovered that there are basically 2 methods for how render engines tackle this issue, and it leads to two different modeling methods. This article from Autodesk does a great job of breaking down the differences (see Approach 3 for Keyshot and approach 4 for some other render engines). The latter is using a calculation they call 'nested dielectrics' which is inherently way easier to model, and in my opinion.... animate. (think of a glass filling up...how would you model that using the split surface method? anyone have an example?)
https://www.autodesk.com/products/fusion-360/blog/7903-2/
What are the chances this type of change could be seen in future implementations of Keyshot? Right now, would be a huge wish list request! Is it even possible with the way the algorithm works, or is it a pipe dream for us?
Thanks!
Hi David,
Quote from: DMerz III on November 30, 2017, 08:35:49 AM
What are the chances this type of change could be seen in future implementations of Keyshot?
The chances are pretty high. Liquid interfaces are a major area of attention for KeyShot 8.
Any other requests concerning liquids in containers?
Dries
Other than running actual simulations, I can only think of thin film effects on the liquids, which you already have in other materials, and maybe bubble and foam generators, but that is more of a modeling function, so not sure if that is in Keyshot's pervue.
Quote from: DriesV on November 30, 2017, 09:15:22 AM
The chances are pretty high. Liquid interfaces are a major area of attention for KeyShot 8.
Any other requests concerning liquids in containers?
Dries
;D That makes me and my team very happy to hear. As for any other requests, there aren't any at the moment that jump out to me. I do appreciate the quick response!
Thanks,
David Merz
Quote from: DMerz III on November 30, 2017, 08:35:49 AM
...and in my opinion.... animate. (think of a glass filling up...how would you model that using the split surface method?
Good point. I'm glad I haven't tried to animate liquid in a glass for this reason now that you point this out.