874604650 Posted January 15, 2015 Share Posted January 15, 2015 (edited) Hi guys, I have some question thanks for help me:) When i simulate whitewater there are many spray foam and few bubbles point leaking through geometry geo motion： $FF/1.9 ， 54km/h around isnot fast but have a lot of point inside the geometry don't know why .. Sorry for my english:) flat_tank.zip Edited January 15, 2015 by 874604650 Quote Link to comment Share on other sites More sharing options...
gramx Posted January 15, 2015 Share Posted January 15, 2015 Hi I have had a look at your scene and set of a simulation, this is what I got- https://dl.dropboxusercontent.com/u/73974952/test_1.wmv The only thing I changed was that I reduced the number of divisions on the collision volume from 600 to 200. I can see on the video that are some whitewater particles penetrating through the hull of the boat. I think if you filled in the center of your collision object or at least made the hull thicker then this would fix the issue otherwise you may have some success by increasing the number of sub-steps. You could even fix this easily in comp G Quote Link to comment Share on other sites More sharing options...
874604650 Posted January 15, 2015 Author Share Posted January 15, 2015 did you use that two delete node in import_whitewater ?~~ nearly can't see any partical on the ship Quote Link to comment Share on other sites More sharing options...
gramx Posted January 15, 2015 Share Posted January 15, 2015 I only changed the collision volume divisions. I think your collision object would become thinner as you increased the quality. here is your scene:- https://dl.dropboxusercontent.com/u/73974952/Flat_Tank_02.hipnc I cached these two nodes:- obj/flattank_fluid/import_flattank obj/import_whitewater/import_whitewater I have left these two node as load from disk, if you hookup your .obj and then cache these two nodes you should get same results as me. Quote Link to comment Share on other sites More sharing options...
lazza79 Posted August 10, 2015 Share Posted August 10, 2015 Hi Guys, I have just started to learn Houdini and VFX. I also had the same problem of Peon with my scene but I didn't understood how to correct it. Is there somebody that could explain me how to solve the problem of whitewater inside my boat? Here you can find my houdini file and the boat object. https://www.dropbox.com/sh/fl809wl9bl4ce0q/AAD3fsdBniL8U3TNWd68bQQVa?dl=0 Thank you! Best regards, Andrea Quote Link to comment Share on other sites More sharing options...
Federico Posted August 10, 2015 Share Posted August 10, 2015 Andrea you should try increasing the tickness of your boat's hull, or inside: whitewater_sim > static object > collision tab > RBD solver > Volume you can try increasing the uniform divisions value until your boat's hull it's blue (remember also to turn on the collision guide box) Quote Link to comment Share on other sites More sharing options...
lazza79 Posted August 11, 2015 Share Posted August 11, 2015 Thank you Federico, I tried to increase it but I can't see the blue. Maybe the "mode" is wrong? Which mode and division methid do you suggest me to use? Thank you! Quote Link to comment Share on other sites More sharing options...
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