EuniceC Posted June 20, 2017 Share Posted June 20, 2017 Hi I'm currently trying to simulate a cargo ship moving across an ocean. I've used the Ocean Guided Layer Tank form Houdini16. Right now the collision geometry of my model is wrong and I don't quite know how to fix it. I've tried using the PolyFill node but it only fills half of the ship. I've tried using another PolyFill node to fill the rest of the holes but it's not doing anything and i'm not sure why. I've attached the picture of collision geometry i got and the houdini file here. It would be great if I can get some help and advice on this problem. Thanks! Eunice OceanWavesTest.hip Quote Link to comment Share on other sites More sharing options...
Sepu Posted June 20, 2017 Share Posted June 20, 2017 You need to lock your OBJ in order to upload with the .hip Quote Link to comment Share on other sites More sharing options...
EuniceC Posted June 20, 2017 Author Share Posted June 20, 2017 My bad. I've locked the .obj file. The geometry should be in there now. OceanWavesTest.hip Quote Link to comment Share on other sites More sharing options...
rbowden Posted June 20, 2017 Share Posted June 20, 2017 The reason why your vdb isn't looking right is because of the way your ship was modeled. It is not a water tight mesh which, is what you need to get a solid vdb. The model has a bunch of intersections and overlapping polygons in it and is probably making the PolyFill SOP confused. If you are just doing this for practice, I would find another ship to download and use that instead. You will have plenty of time to fix other dept mistakes in your career. If this is for a paid project though, you are going to have to spend the time cleaning this mesh up. Quote Link to comment Share on other sites More sharing options...
EuniceC Posted June 21, 2017 Author Share Posted June 21, 2017 On 6/20/2017 at 1:00 PM, rbowden said: The reason why your vdb isn't looking right is because of the way your ship was modeled. It is not a water tight mesh which, is what you need to get a solid vdb. The model has a bunch of intersections and overlapping polygons in it and is probably making the PolyFill SOP confused. If you are just doing this for practice, I would find another ship to download and use that instead. You will have plenty of time to fix other dept mistakes in your career. If this is for a paid project though, you are going to have to spend the time cleaning this mesh up. That explains it. I realised that there are many holes in that geometry too. Thank you for the advice! Quote Link to comment Share on other sites More sharing options...
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