jgsdtc Posted February 14, 2017 Share Posted February 14, 2017 Hi guys, I have a scene which is ocean interact with a ship. But I have a few problems with it. (1) The volume foam always jitter. Is it because my flip sim particle separation is different from the VDB voxel size? (2) How can I get rid of the foam on the ocean? I only want the foam to be generated around the ship. I am using whitewater solver and because the ocean surface is moving and it has the velocity so it will generate foam on the surface too. Is it have any different approach for that? Thank you!Video passcode: test https://vimeo.com/203928351 Quote Link to comment Share on other sites More sharing options...
tamagochy Posted February 14, 2017 Share Posted February 14, 2017 Make mask around ship and multiply it to emmision rate. Quote Link to comment Share on other sites More sharing options...
Atom Posted February 14, 2017 Share Posted February 14, 2017 I know how to make a mask in After Effects but I still don't know how to mask anything in Houdini. Can you elaborate on FLIP masking? Quote Link to comment Share on other sites More sharing options...
jgsdtc Posted February 14, 2017 Author Share Posted February 14, 2017 7 hours ago, tamagochy said: Make mask around ship and multiply it to emmision rate. Thank you Andrii. Do you mean make a polygon or primitive around the ship and use group node to delete the particle outside the bounding area? or Calculate the distance between ship and particles to be the emission rate? Quote Link to comment Share on other sites More sharing options...
jgsdtc Posted February 14, 2017 Author Share Posted February 14, 2017 2 hours ago, Atom said: I know how to make a mask in After Effects but I still don't know how to mask anything in Houdini. Can you elaborate on FLIP masking? I think I can use point cloud to look up the particles around ship. But not sure if that works..Still finding the solution.. Quote Link to comment Share on other sites More sharing options...
tamagochy Posted February 15, 2017 Share Posted February 15, 2017 Use point cloud look up to create distant atribute on wite water source and mult it by emmit atribute or delet particles... Quote Link to comment Share on other sites More sharing options...
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