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Showing results for tags 'vdb collision'.
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After a lot of testing have a simulation that mostly works. The collision and velocity forces from the rotating fan are correctly advecting the smoke. However, what is missing is any actual 'wind' force coming from the fan. As the fan rotation increases, there should be a visibly increasing force driving the smoke perpendicular to the fans rotation. Although my actual fan rotation is probably wrong, the video should make this clear. Also attached my solver setup. Using velocity on both the velocity (3rd input) of my solver as well as a smaller amount post solve. Can anyone suggest what I am missing?
Hello to all... I have a scene where I have animated geometry written out and I bring it back in via a file sop. The animation is just of some rocks flying up in the air flying down inside some water. I'm using a vdb from polygons on the file and I'm bringing that into the dop network as a static object with the mode set to Volume Sample and pointing to the object in the proxy volume field . The problem I run into is when the rocks collide with the fluid, the fluid collapses. I can remove the proxy volume and reset the mode to ray intersect and things will be fine....I have tried to explore on how to fix this but I can't seem to find the solution... does anyone have any ideas? I can upload the scene later if needed. flip_tests.hipnc