08-22-2012, 05:50 AM
Hi everyone,
N-sim is a very cool feature and it's got great potential. I'd really like to utilize it however am having an issue where I'm getting a lot of what I'll call back-velocity affecting adjacent sim boxes.
See attached file with 3 sim boxes. Lower box has a simple source adding smoke and temperature, middle box is advecting sideways, plus a 3rd box included (though doesn't really matter for the sake of the test). After velocities and density rise into 2nd box, eventually around frame 130's the lower box velocities get violently pushed to the point where density is snuffed out near the simple source.
[ATTACHMENT NOT FOUND]
I've tried different configurations and all produce the same results.
Another test is to create a single box with a localized 'betterwind' near the top and simple source emission at the bottom. The wind affects upper region as expected. Now create it as an n-sim with a lower and upper box. After simming, eventually the upper box's velocities bleed into the lower and heavily affect the lower box.
Appreciate any thoughts. Thanks again!
N-sim is a very cool feature and it's got great potential. I'd really like to utilize it however am having an issue where I'm getting a lot of what I'll call back-velocity affecting adjacent sim boxes.
See attached file with 3 sim boxes. Lower box has a simple source adding smoke and temperature, middle box is advecting sideways, plus a 3rd box included (though doesn't really matter for the sake of the test). After velocities and density rise into 2nd box, eventually around frame 130's the lower box velocities get violently pushed to the point where density is snuffed out near the simple source.
[ATTACHMENT NOT FOUND]
I've tried different configurations and all produce the same results.
Another test is to create a single box with a localized 'betterwind' near the top and simple source emission at the bottom. The wind affects upper region as expected. Now create it as an n-sim with a lower and upper box. After simming, eventually the upper box's velocities bleed into the lower and heavily affect the lower box.
Appreciate any thoughts. Thanks again!