Re: Stable CSG Booleans in Implosia?
I recall using that sometime ages ago. I use Arnold so it will not work for me this time :) //MB > Den 7. juni 2016 klokken 12:41 skrev Mailing Lists > : > > > You could try using the old BinaryIris boolTrace shaders to do a > render-time boolean if you don't actually need the boolean liquid > meshes? I've done this a few times with good results for animated > liquid in bottles where's I've need a quick unsimulated method. > > cheers > Tom > > On 6/7/2016 10:18 AM, Morten Bartholdy wrote: > > I am working on creating fluid in a bottle where I would like to animate > > the fluid surface rather than simulate fluids, so I am looking at animating > > an object which I use to cut the fluid object with Implosias CGS Booleans. > > Unfortunately it seems they are no more stable than the built in booleans, > > resulting in the boolean object not being created on some frames. I know > > from the built in booleans that I can try and make small variations in > > translation on the boolean input objects to fix this, but it does not > > always work, it is finicky and I was hoping for a more solid solution for > > animations. > > > > So I was wondering if someone here know a way to get more stable results > > from CSG booleans or perhaps know about other workarounds to achieve > > something like this. > > > > Cheers > > Morten > > > > --- > > avast! Antivirus: Inbound message clean. > > Virus Database (VPS): 160606-1, 06/06/2016 > > Tested on: 07/06/2016 10:19:41 > > avast! - copyright (c) 1988-2016 AVAST Software. > > https://www.avast.com/antivirus > > > > > > > > > > -- > > Softimage Mailing List. > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > > "unsubscribe" in the subject, and reply to confirm. > > > > --- > avast! Antivirus: Outbound message clean. > Virus Database (VPS): 160606-1, 06/06/2016 > Tested on: 07/06/2016 11:42:05 > avast! - copyright (c) 1988-2016 AVAST Software. > https://www.avast.com/antivirus > > > -- > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > "unsubscribe" in the subject, and reply to confirm. -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Stable CSG Booleans in Implosia?
You could try using the old BinaryIris boolTrace shaders to do a render-time boolean if you don't actually need the boolean liquid meshes? I've done this a few times with good results for animated liquid in bottles where's I've need a quick unsimulated method. cheers Tom On 6/7/2016 10:18 AM, Morten Bartholdy wrote: I am working on creating fluid in a bottle where I would like to animate the fluid surface rather than simulate fluids, so I am looking at animating an object which I use to cut the fluid object with Implosias CGS Booleans. Unfortunately it seems they are no more stable than the built in booleans, resulting in the boolean object not being created on some frames. I know from the built in booleans that I can try and make small variations in translation on the boolean input objects to fix this, but it does not always work, it is finicky and I was hoping for a more solid solution for animations. So I was wondering if someone here know a way to get more stable results from CSG booleans or perhaps know about other workarounds to achieve something like this. Cheers Morten --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 160606-1, 06/06/2016 Tested on: 07/06/2016 10:19:41 avast! - copyright (c) 1988-2016 AVAST Software. https://www.avast.com/antivirus -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 160606-1, 06/06/2016 Tested on: 07/06/2016 11:42:05 avast! - copyright (c) 1988-2016 AVAST Software. https://www.avast.com/antivirus -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Stable CSG Booleans in Implosia?
Thanks Oleg - I will take a look and see how it works. BTW your tip about triangulating meshes prior to booleans did the trick. It is very stable for my scenario - big thanks :) Regards Morten > Den 7. juni 2016 klokken 11:54 skrev Oleg Bliznuk : > > > It depends on how complex your csg is, my toolset was made mainly for > selfeducation purposes so it doesnot support many necessary stuff like > attribute transfer, normals correction on voxels-to-mesh conversion etc. > but for simple usercases it could be acceptable i think. > > вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > > > Hi Oleg, > > > > Thanks a lot for the tips and insight. I have been testing the fracturing > > lately and it is a lot of fun :) > > > > I guessed there might not be a stable solution, but sometimes with tips > > and tricks things can be made workable, so thanks or those. > > > > You mention vdb csg - is this possible with your vdb tools for XSI? > > > > > > Regards > > Morten > > > > > > > > > Den 7. juni 2016 klokken 11:35 skrev Oleg Bliznuk > >: > > > > > > > > > Hey Morten, > > > To get booleans work more or less predictable you have to : > > > -triangulate your mesh (or have all vertices of each polygon to be in the > > > same plane so that polygon is mathematically determenible) > > > -get rid of all selfintersection, all double edges, all holes > > > Avoiding any of these cases makes it is impossible to know an exact > > result. > > > Unfortunatly it is still impossible to make a 100% stable polygonal > > > booleans, in general, for animation tasks it may be worth to use > > voxelbased > > > methods like vdb csg/ fracturing. > > > Regards, > > > Oleg > > > > > > вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > > > > > > > I am working on creating fluid in a bottle where I would like to > > animate > > > > the fluid surface rather than simulate fluids, so I am looking at > > animating > > > > an object which I use to cut the fluid object with Implosias CGS > > Booleans. > > > > Unfortunately it seems they are no more stable than the built in > > booleans, > > > > resulting in the boolean object not being created on some frames. I > > know > > > > from the built in booleans that I can try and make small variations in > > > > translation on the boolean input objects to fix this, but it does not > > > > always work, it is finicky and I was hoping for a more solid solution > > for > > > > animations. > > > > > > > > So I was wondering if someone here know a way to get more stable > > results > > > > from CSG booleans or perhaps know about other workarounds to achieve > > > > something like this. > > > > > > > > Cheers > > > > Morten > > > -- > > > Softimage Mailing List. > > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > > with "unsubscribe" in the subject, and reply to confirm. > > > > -- > > Softimage Mailing List. > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > > with "unsubscribe" in the subject, and reply to confirm. > -- > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > "unsubscribe" in the subject, and reply to confirm. -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Stable CSG Booleans in Implosia?
It depends on how complex your csg is, my toolset was made mainly for selfeducation purposes so it doesnot support many necessary stuff like attribute transfer, normals correction on voxels-to-mesh conversion etc. but for simple usercases it could be acceptable i think. вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > Hi Oleg, > > Thanks a lot for the tips and insight. I have been testing the fracturing > lately and it is a lot of fun :) > > I guessed there might not be a stable solution, but sometimes with tips > and tricks things can be made workable, so thanks or those. > > You mention vdb csg - is this possible with your vdb tools for XSI? > > > Regards > Morten > > > > > Den 7. juni 2016 klokken 11:35 skrev Oleg Bliznuk >: > > > > > > Hey Morten, > > To get booleans work more or less predictable you have to : > > -triangulate your mesh (or have all vertices of each polygon to be in the > > same plane so that polygon is mathematically determenible) > > -get rid of all selfintersection, all double edges, all holes > > Avoiding any of these cases makes it is impossible to know an exact > result. > > Unfortunatly it is still impossible to make a 100% stable polygonal > > booleans, in general, for animation tasks it may be worth to use > voxelbased > > methods like vdb csg/ fracturing. > > Regards, > > Oleg > > > > вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > > > > > I am working on creating fluid in a bottle where I would like to > animate > > > the fluid surface rather than simulate fluids, so I am looking at > animating > > > an object which I use to cut the fluid object with Implosias CGS > Booleans. > > > Unfortunately it seems they are no more stable than the built in > booleans, > > > resulting in the boolean object not being created on some frames. I > know > > > from the built in booleans that I can try and make small variations in > > > translation on the boolean input objects to fix this, but it does not > > > always work, it is finicky and I was hoping for a more solid solution > for > > > animations. > > > > > > So I was wondering if someone here know a way to get more stable > results > > > from CSG booleans or perhaps know about other workarounds to achieve > > > something like this. > > > > > > Cheers > > > Morten > > -- > > Softimage Mailing List. > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > with "unsubscribe" in the subject, and reply to confirm. > > -- > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > with "unsubscribe" in the subject, and reply to confirm. -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Stable CSG Booleans in Implosia?
Hi Oleg, Thanks a lot for the tips and insight. I have been testing the fracturing lately and it is a lot of fun :) I guessed there might not be a stable solution, but sometimes with tips and tricks things can be made workable, so thanks or those. You mention vdb csg - is this possible with your vdb tools for XSI? Regards Morten > Den 7. juni 2016 klokken 11:35 skrev Oleg Bliznuk : > > > Hey Morten, > To get booleans work more or less predictable you have to : > -triangulate your mesh (or have all vertices of each polygon to be in the > same plane so that polygon is mathematically determenible) > -get rid of all selfintersection, all double edges, all holes > Avoiding any of these cases makes it is impossible to know an exact result. > Unfortunatly it is still impossible to make a 100% stable polygonal > booleans, in general, for animation tasks it may be worth to use voxelbased > methods like vdb csg/ fracturing. > Regards, > Oleg > > вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > > > I am working on creating fluid in a bottle where I would like to animate > > the fluid surface rather than simulate fluids, so I am looking at animating > > an object which I use to cut the fluid object with Implosias CGS Booleans. > > Unfortunately it seems they are no more stable than the built in booleans, > > resulting in the boolean object not being created on some frames. I know > > from the built in booleans that I can try and make small variations in > > translation on the boolean input objects to fix this, but it does not > > always work, it is finicky and I was hoping for a more solid solution for > > animations. > > > > So I was wondering if someone here know a way to get more stable results > > from CSG booleans or perhaps know about other workarounds to achieve > > something like this. > > > > Cheers > > Morten > -- > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > "unsubscribe" in the subject, and reply to confirm. -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Stable CSG Booleans in Implosia?
Hey Morten, To get booleans work more or less predictable you have to : -triangulate your mesh (or have all vertices of each polygon to be in the same plane so that polygon is mathematically determenible) -get rid of all selfintersection, all double edges, all holes Avoiding any of these cases makes it is impossible to know an exact result. Unfortunatly it is still impossible to make a 100% stable polygonal booleans, in general, for animation tasks it may be worth to use voxelbased methods like vdb csg/ fracturing. Regards, Oleg вторник, 7 июня 2016 г. пользователь Morten Bartholdy написал: > I am working on creating fluid in a bottle where I would like to animate > the fluid surface rather than simulate fluids, so I am looking at animating > an object which I use to cut the fluid object with Implosias CGS Booleans. > Unfortunately it seems they are no more stable than the built in booleans, > resulting in the boolean object not being created on some frames. I know > from the built in booleans that I can try and make small variations in > translation on the boolean input objects to fix this, but it does not > always work, it is finicky and I was hoping for a more solid solution for > animations. > > So I was wondering if someone here know a way to get more stable results > from CSG booleans or perhaps know about other workarounds to achieve > something like this. > > Cheers > Morten -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
