Re: Emit particles frm surfaces facing a particular direction?
Yes, please Paul. I miss your tutorials too. Would be awesome to see some Houdini tutorials from you. There are lots but most are maybe too advanced, or maybe there are some basic but the guys behind them don't have your teaching skills. On Tue, Mar 14, 2017 at 10:59 AM, Christopher Crouzet < christopher.crou...@gmail.com> wrote: > Are you saying that you're shy of sending your Houdini questions over to > the list? Bring them on, I'm sure the few Houdini users around will be > happy to help, and it'll also serve others doing the transition! > > > On 14 March 2017 at 23:36, <p...@bustykelp.com> wrote: > >> I am doing Houdini a bit, but spend a lot more time with Softimage to be >> honest. I don't have anyone to help me with Houdini and find it hard going >> when I get stuck. >> >> >> >> -Original Message- >> From: Morten Bartholdy >> Sent: Tuesday, March 14, 2017 4:00 PM >> To: p...@bustykelp.com ; Official Softimage Users Mailing List. >> https://groups.google.com/forum/#!forum/xsi_list >> Subject: Re: Emit particles frm surfaces facing a particular direction? >> >> Great explanation Paul. I was missing the emit location part, which I >> guess >> will explain why I did not see the desired effect :) >> >> I miss your tutorials, but I guess you are diving into Houdini. Maybe you >> can make that more accessible to people like me - you have a great talent >> for teaching. >> >> Thanks >> Morten >> >> >> >> > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: >> > >> > >> > https://vimeo.com/208318679 watch this >> > >> > >> > -----Original Message- >> > From: Morten Bartholdy >> > Sent: Tuesday, March 14, 2017 2:47 PM >> > To: Official Softimage Users Mailing >> > List.https://groups.google.com/forum/#!forum/xsi_list >> > Subject: Re: Emit particles frm surfaces facing a particular direction? >> > >> > Oh goodie. I thought I had almost got it right, and I saw a reaction, >> but >> > clearly not the desired one :) >> > >> > >> > MB >> > >> > >> > >> > >> > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: >> > > >> > > >> > > I'm making you a video if you can hold out a moment and I'll send the >> > > link >> > > >> > > >> > > >> > > -Original Message- >> > > From: Morten Bartholdy >> > > Sent: Tuesday, March 14, 2017 2:13 PM >> > > To: Official Softimage Users Mailing >> > > List.https://groups.google.com/forum/#!forum/xsi_list >> > > Subject: Re: Emit particles frm surfaces facing a particular >> direction? >> > > >> > > Also seems replies with attachments don't get through... >> > > >> > > MB >> > > >> > > >> > > >> > > >> > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy >> > > > <x...@colorshopvfx.dk>: >> > > > >> > > > >> > > > It seems I am doing something wrong - I am not getting the right >> > > > values. >> > > > >> > > > MB >> > > > >> > > > >> > > > >> > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: >> > > > > >> > > > > >> > > > > The easiest thing is to emit over the whole object then do what >> you >> > > > > did >> > > > > and >> > > > > plug the output of your 'Less than' into a Delete Particle node. >> > > > > >> > > > > -Original Message- >> > > > > From: Morten Bartholdy >> > > > > Sent: Tuesday, March 14, 2017 11:19 AM >> > > > > To: Official Softimage Users Mailing List. >> > > > > https://groups.google.com/forum/#!forum/xsi_list ; >> > > > > p...@bustykelp.com >> > > > > Subject: Re: Emit particles frm surfaces facing a particular >> > > > > direction? >> > > > > >> > > > > Thanks Paul. I know stuf like this is trivial to you, but it is >> not >> > > > > so >> > > > > much >> > > > > the method that escapes me as the lack of a tool that does this. >> > > > > >> > >
RE: Emit particles frm surfaces facing a particular direction?
OdForce and the Houdini Discord server are great too. From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Olivier Jeannel Sent: 14 March 2017 16:59 To: p...@bustykelp.com; Official Softimage Users Mailing List. https://groups.google.com/forum/#!forum/xsi_list <softimage@listproc.autodesk.com> Subject: Re: Emit particles frm surfaces facing a particular direction? Paul, ask here or on the sidefx list, you won't be stuck forever with the level you have. 2017-03-14 17:36 GMT+01:00 <p...@bustykelp.com <mailto:p...@bustykelp.com> >: I am doing Houdini a bit, but spend a lot more time with Softimage to be honest. I don't have anyone to help me with Houdini and find it hard going when I get stuck. -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 4:00 PM To: p...@bustykelp.com <mailto:p...@bustykelp.com> ; Official Softimage Users Mailing List. https://groups.google.com/forum/#!forum/xsi_list Subject: Re: Emit particles frm surfaces facing a particular direction? Great explanation Paul. I was missing the emit location part, which I guess will explain why I did not see the desired effect :) I miss your tutorials, but I guess you are diving into Houdini. Maybe you can make that more accessible to people like me - you have a great talent for teaching. Thanks Morten > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com > <mailto:p...@bustykelp.com> : > > > https://vimeo.com/208318679 watch this > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:47 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > clearly not the desired one :) > > > MB > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com > > <mailto:p...@bustykelp.com> : > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > link > > > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:13 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Also seems replies with attachments don't get through... > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > <x...@colorshopvfx.dk <mailto:x...@colorshopvfx.dk> >: > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > values. > > > > > > MB > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com > > > > <mailto:p...@bustykelp.com> : > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > did > > > > and > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > To: Official Softimage Users Mailing List. > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > p...@bustykelp.com <mailto:p...@bustykelp.com> > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > direction? > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > so > > > > much > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > Point > > > > Normals from my geometry, I can then get the angle between them and > > > > put > > > > than > > > > into a Less than or equal to node, but how to transform a threshold > > > > value > > > > into either weightmap values, creating a sample set to emit from or > > > > filtering an emission, I don't know. > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > overlooked > > > > which provided something I could use :) > > > > > > > > cheer
Re: Emit particles frm surfaces facing a particular direction?
I watched the vid even though I'm in Maya nowadays. It's always fun to see how you break things down Paul. If I remember right, your original ICE vids were sort of you teaching yourself stuff (the ray-tracer etc.), it'd be fun to see you going through that process in Houdini. Its a very relatable form of tutorial. I also have a tough time getting to grips with Houdini - it's a bit daunting in its presentation. Good fun seeing you have your Eureka moments though :) On 14 March 2017 at 16:36, <p...@bustykelp.com> wrote: > I am doing Houdini a bit, but spend a lot more time with Softimage to be > honest. I don't have anyone to help me with Houdini and find it hard going > when I get stuck. > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 4:00 PM > To: p...@bustykelp.com ; Official Softimage Users Mailing List. > https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Great explanation Paul. I was missing the emit location part, which I guess > will explain why I did not see the desired effect :) > > I miss your tutorials, but I guess you are diving into Houdini. Maybe you > can make that more accessible to people like me - you have a great talent > for teaching. > > Thanks > Morten > > > > > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > > > > https://vimeo.com/208318679 watch this > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:47 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > > clearly not the desired one :) > > > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > > link > > > > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 2:13 PM > > > To: Official Softimage Users Mailing > > > List.https://groups.google.com/forum/#!forum/xsi_list > > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > > > Also seems replies with attachments don't get through... > > > > > > MB > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > > <x...@colorshopvfx.dk>: > > > > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > > values. > > > > > > > > MB > > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > > did > > > > > and > > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > > > -Original Message- > > > > > From: Morten Bartholdy > > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > > To: Official Softimage Users Mailing List. > > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > > p...@bustykelp.com > > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > > direction? > > > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > > so > > > > > much > > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > > Point > > > > > Normals from my geometry, I can then get the angle between them and > > > > > put > > > > > than > > > > > into a Less than or equal to node, but how to transform a threshold > > > > > value > > > > > into either weightmap values, creating a sample set to emit from or > > > > > filtering an emission, I don't know. > > > > > > > >
Re: Emit particles frm surfaces facing a particular direction?
Are you saying that you're shy of sending your Houdini questions over to the list? Bring them on, I'm sure the few Houdini users around will be happy to help, and it'll also serve others doing the transition! On 14 March 2017 at 23:36, <p...@bustykelp.com> wrote: > I am doing Houdini a bit, but spend a lot more time with Softimage to be > honest. I don't have anyone to help me with Houdini and find it hard going > when I get stuck. > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 4:00 PM > To: p...@bustykelp.com ; Official Softimage Users Mailing List. > https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Great explanation Paul. I was missing the emit location part, which I guess > will explain why I did not see the desired effect :) > > I miss your tutorials, but I guess you are diving into Houdini. Maybe you > can make that more accessible to people like me - you have a great talent > for teaching. > > Thanks > Morten > > > > > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > > > > https://vimeo.com/208318679 watch this > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:47 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > > clearly not the desired one :) > > > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > > link > > > > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 2:13 PM > > > To: Official Softimage Users Mailing > > > List.https://groups.google.com/forum/#!forum/xsi_list > > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > > > Also seems replies with attachments don't get through... > > > > > > MB > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > > <x...@colorshopvfx.dk>: > > > > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > > values. > > > > > > > > MB > > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > > did > > > > > and > > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > > > -Original Message- > > > > > From: Morten Bartholdy > > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > > To: Official Softimage Users Mailing List. > > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > > p...@bustykelp.com > > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > > direction? > > > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > > so > > > > > much > > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > > Point > > > > > Normals from my geometry, I can then get the angle between them and > > > > > put > > > > > than > > > > > into a Less than or equal to node, but how to transform a threshold > > > > > value > > > > > into either weightmap values, creating a sample set to emit from or > > > > > filtering an emission, I don't know. > > > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > > overlooked > > > > > which provided something I could use :) > > > > > > > > > > cheers > > > > > Morten &
Re: Emit particles frm surfaces facing a particular direction?
Paul, ask here or on the sidefx list, you won't be stuck forever with the level you have. 2017-03-14 17:36 GMT+01:00 <p...@bustykelp.com>: > I am doing Houdini a bit, but spend a lot more time with Softimage to be > honest. I don't have anyone to help me with Houdini and find it hard going > when I get stuck. > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 4:00 PM > To: p...@bustykelp.com ; Official Softimage Users Mailing List. > https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Great explanation Paul. I was missing the emit location part, which I guess > will explain why I did not see the desired effect :) > > I miss your tutorials, but I guess you are diving into Houdini. Maybe you > can make that more accessible to people like me - you have a great talent > for teaching. > > Thanks > Morten > > > > > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > > > > https://vimeo.com/208318679 watch this > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:47 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > > clearly not the desired one :) > > > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > > link > > > > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 2:13 PM > > > To: Official Softimage Users Mailing > > > List.https://groups.google.com/forum/#!forum/xsi_list > > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > > > Also seems replies with attachments don't get through... > > > > > > MB > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > > <x...@colorshopvfx.dk>: > > > > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > > values. > > > > > > > > MB > > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > > did > > > > > and > > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > > > -Original Message- > > > > > From: Morten Bartholdy > > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > > To: Official Softimage Users Mailing List. > > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > > p...@bustykelp.com > > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > > direction? > > > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > > so > > > > > much > > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > > Point > > > > > Normals from my geometry, I can then get the angle between them and > > > > > put > > > > > than > > > > > into a Less than or equal to node, but how to transform a threshold > > > > > value > > > > > into either weightmap values, creating a sample set to emit from or > > > > > filtering an emission, I don't know. > > > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > > overlooked > > > > > which provided something I could use :) > > > > > > > > > > cheers > > > > > Morten > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 11:11
Re: Emit particles frm surfaces facing a particular direction?
Paul - are you subscribed to the Houdini list - it can be really helpful. Send an email with subscribe in body to sidefx-houdini-list-requ...@sidefx.com - I think it is. S. On Tue, Mar 14, 2017 at 4:36 PM, <p...@bustykelp.com> wrote: > I am doing Houdini a bit, but spend a lot more time with Softimage to be > honest. I don't have anyone to help me with Houdini and find it hard going > when I get stuck. > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 4:00 PM > To: p...@bustykelp.com ; Official Softimage Users Mailing List. > https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Great explanation Paul. I was missing the emit location part, which I guess > will explain why I did not see the desired effect :) > > I miss your tutorials, but I guess you are diving into Houdini. Maybe you > can make that more accessible to people like me - you have a great talent > for teaching. > > Thanks > Morten > > > > > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > > > > https://vimeo.com/208318679 watch this > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:47 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > > clearly not the desired one :) > > > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > > link > > > > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 2:13 PM > > > To: Official Softimage Users Mailing > > > List.https://groups.google.com/forum/#!forum/xsi_list > > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > > > Also seems replies with attachments don't get through... > > > > > > MB > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > > <x...@colorshopvfx.dk>: > > > > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > > values. > > > > > > > > MB > > > > > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > > did > > > > > and > > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > > > -Original Message- > > > > > From: Morten Bartholdy > > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > > To: Official Softimage Users Mailing List. > > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > > p...@bustykelp.com > > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > > direction? > > > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > > so > > > > > much > > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > > Point > > > > > Normals from my geometry, I can then get the angle between them and > > > > > put > > > > > than > > > > > into a Less than or equal to node, but how to transform a threshold > > > > > value > > > > > into either weightmap values, creating a sample set to emit from or > > > > > filtering an emission, I don't know. > > > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > > overlooked > > > > > which provided something I could use :) > > > > > > > > > > cheers > > > > > Morten > &g
Re: Emit particles frm surfaces facing a particular direction?
I am doing Houdini a bit, but spend a lot more time with Softimage to be honest. I don't have anyone to help me with Houdini and find it hard going when I get stuck. -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 4:00 PM To: p...@bustykelp.com ; Official Softimage Users Mailing List. https://groups.google.com/forum/#!forum/xsi_list Subject: Re: Emit particles frm surfaces facing a particular direction? Great explanation Paul. I was missing the emit location part, which I guess will explain why I did not see the desired effect :) I miss your tutorials, but I guess you are diving into Houdini. Maybe you can make that more accessible to people like me - you have a great talent for teaching. Thanks Morten > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > https://vimeo.com/208318679 watch this > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:47 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > clearly not the desired one :) > > > MB > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > I'm making you a video if you can hold out a moment and I'll send the > > link > > > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:13 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Also seems replies with attachments don't get through... > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > <x...@colorshopvfx.dk>: > > > > > > > > > It seems I am doing something wrong - I am not getting the right > > > values. > > > > > > MB > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > did > > > > and > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > To: Official Softimage Users Mailing List. > > > > https://groups.google.com/forum/#!forum/xsi_list ; > > > > p...@bustykelp.com > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > direction? > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not > > > > so > > > > much > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > Point > > > > Normals from my geometry, I can then get the angle between them and > > > > put > > > > than > > > > into a Less than or equal to node, but how to transform a threshold > > > > value > > > > into either weightmap values, creating a sample set to emit from or > > > > filtering an emission, I don't know. > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > overlooked > > > > which provided something I could use :) > > > > > > > > cheers > > > > Morten > > > > > > > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > You can either > > > > > > > > > > Emit from the whole and delete the ones that aren't pointing in > > > > > the > > > > > right > > > > > direction, (based on comparing the normal angle to your preferred > > > > > vector) > > > > > > > > > > Or create a weightmap on the object and use ICE to set the values > > > > > based > > > > > upon > > > > > the normal angle and use the weightmap in the Emit node. (This > > > > > wont > > > > > wor
Re: Emit particles frm surfaces facing a particular direction?
Great explanation Paul. I was missing the emit location part, which I guess will explain why I did not see the desired effect :) I miss your tutorials, but I guess you are diving into Houdini. Maybe you can make that more accessible to people like me - you have a great talent for teaching. Thanks Morten > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > https://vimeo.com/208318679 watch this > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:47 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > clearly not the desired one :) > > > MB > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > I'm making you a video if you can hold out a moment and I'll send the link > > > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:13 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Also seems replies with attachments don't get through... > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > <x...@colorshopvfx.dk>: > > > > > > > > > It seems I am doing something wrong - I am not getting the right values. > > > > > > MB > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > did > > > > and > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > To: Official Softimage Users Mailing List. > > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > direction? > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so > > > > much > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > Point > > > > Normals from my geometry, I can then get the angle between them and > > > > put > > > > than > > > > into a Less than or equal to node, but how to transform a threshold > > > > value > > > > into either weightmap values, creating a sample set to emit from or > > > > filtering an emission, I don't know. > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > overlooked > > > > which provided something I could use :) > > > > > > > > cheers > > > > Morten > > > > > > > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > You can either > > > > > > > > > > Emit from the whole and delete the ones that aren't pointing in the > > > > > right > > > > > direction, (based on comparing the normal angle to your preferred > > > > > vector) > > > > > > > > > > Or create a weightmap on the object and use ICE to set the values > > > > > based > > > > > upon > > > > > the normal angle and use the weightmap in the Emit node. (This wont > > > > > work > > > > > on > > > > > low poly meshes for obvious reasons) > > > > > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > > > aren't > > > > > pointing in the right direction, then emit from the resulting > > > > > object. > > > > > > > > > > > > > > > Number 1 is the easiest to set up. > > > > > > > > > > Paul > > > &
Re: Emit particles frm surfaces facing a particular direction?
Damn you are fast :) Thanks a million. Best Morten > Den 14. marts 2017 klokken 16:06 skrev p...@bustykelp.com: > > > https://vimeo.com/208318679 watch this > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:47 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Oh goodie. I thought I had almost got it right, and I saw a reaction, but > clearly not the desired one :) > > > MB > > > > > > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > > > > I'm making you a video if you can hold out a moment and I'll send the link > > > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 2:13 PM > > To: Official Softimage Users Mailing > > List.https://groups.google.com/forum/#!forum/xsi_list > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Also seems replies with attachments don't get through... > > > > MB > > > > > > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > > <x...@colorshopvfx.dk>: > > > > > > > > > It seems I am doing something wrong - I am not getting the right values. > > > > > > MB > > > > > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > > did > > > > and > > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > > To: Official Softimage Users Mailing List. > > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > > > Subject: Re: Emit particles frm surfaces facing a particular > > > > direction? > > > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so > > > > much > > > > the method that escapes me as the lack of a tool that does this. > > > > > > > > I can figure out how to get a vector from a nulls position and Get > > > > Point > > > > Normals from my geometry, I can then get the angle between them and > > > > put > > > > than > > > > into a Less than or equal to node, but how to transform a threshold > > > > value > > > > into either weightmap values, creating a sample set to emit from or > > > > filtering an emission, I don't know. > > > > > > > > I was sort of hoping there would be a node or compound I had > > > > overlooked > > > > which provided something I could use :) > > > > > > > > cheers > > > > Morten > > > > > > > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > > > > > > > You can either > > > > > > > > > > Emit from the whole and delete the ones that aren't pointing in the > > > > > right > > > > > direction, (based on comparing the normal angle to your preferred > > > > > vector) > > > > > > > > > > Or create a weightmap on the object and use ICE to set the values > > > > > based > > > > > upon > > > > > the normal angle and use the weightmap in the Emit node. (This wont > > > > > work > > > > > on > > > > > low poly meshes for obvious reasons) > > > > > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > > > aren't > > > > > pointing in the right direction, then emit from the resulting > > > > > object. > > > > > > > > > > > > > > > Number 1 is the easiest to set up. > > > > > > > > > > Paul > > > > > > > > > > > > > > > -Original Message- > > > > > From: Morten Bartholdy > > > > > Sent: Tuesday, March 14, 2017 10:05 AM > > > > > To: Userlist, Softimage > &g
Re: Emit particles frm surfaces facing a particular direction?
https://vimeo.com/208318679 watch this -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 2:47 PM To: Official Softimage Users Mailing List.https://groups.google.com/forum/#!forum/xsi_list Subject: Re: Emit particles frm surfaces facing a particular direction? Oh goodie. I thought I had almost got it right, and I saw a reaction, but clearly not the desired one :) MB > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > I'm making you a video if you can hold out a moment and I'll send the link > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:13 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Also seems replies with attachments don't get through... > > MB > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > <x...@colorshopvfx.dk>: > > > > > > It seems I am doing something wrong - I am not getting the right values. > > > > MB > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > The easiest thing is to emit over the whole object then do what you > > > did > > > and > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > To: Official Softimage Users Mailing List. > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > > Subject: Re: Emit particles frm surfaces facing a particular > > > direction? > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so > > > much > > > the method that escapes me as the lack of a tool that does this. > > > > > > I can figure out how to get a vector from a nulls position and Get > > > Point > > > Normals from my geometry, I can then get the angle between them and > > > put > > > than > > > into a Less than or equal to node, but how to transform a threshold > > > value > > > into either weightmap values, creating a sample set to emit from or > > > filtering an emission, I don't know. > > > > > > I was sort of hoping there would be a node or compound I had > > > overlooked > > > which provided something I could use :) > > > > > > cheers > > > Morten > > > > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > > > > You can either > > > > > > > > Emit from the whole and delete the ones that aren't pointing in the > > > > right > > > > direction, (based on comparing the normal angle to your preferred > > > > vector) > > > > > > > > Or create a weightmap on the object and use ICE to set the values > > > > based > > > > upon > > > > the normal angle and use the weightmap in the Emit node. (This wont > > > > work > > > > on > > > > low poly meshes for obvious reasons) > > > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > > aren't > > > > pointing in the right direction, then emit from the resulting > > > > object. > > > > > > > > > > > > Number 1 is the easiest to set up. > > > > > > > > Paul > > > > > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 10:05 AM > > > > To: Userlist, Softimage > > > > Subject: Emit particles frm surfaces facing a particular direction? > > > > > > > > I have looked through the sample scenes but could not find something > > > > that > > > > does this. I want to emit particles from surfaces of an object that > > > > faces > > > > in > > > > a particular direction, either a custom vector or fom polygons > > > > facing > > > > a > > > > null. > > > > > > > > How can I do this? > > > > > > > > Thanks. > > > > > > > > Morten > > > > -- > > > > Softimage Mailing List. > >
Re: Emit particles frm surfaces facing a particular direction?
Oh goodie. I thought I had almost got it right, and I saw a reaction, but clearly not the desired one :) MB > Den 14. marts 2017 klokken 15:27 skrev p...@bustykelp.com: > > > I'm making you a video if you can hold out a moment and I'll send the link > > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 2:13 PM > To: Official Softimage Users Mailing > List.https://groups.google.com/forum/#!forum/xsi_list > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Also seems replies with attachments don't get through... > > MB > > > > > > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > > <x...@colorshopvfx.dk>: > > > > > > It seems I am doing something wrong - I am not getting the right values. > > > > MB > > > > > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > > > > The easiest thing is to emit over the whole object then do what you did > > > and > > > plug the output of your 'Less than' into a Delete Particle node. > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 11:19 AM > > > To: Official Softimage Users Mailing List. > > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so > > > much > > > the method that escapes me as the lack of a tool that does this. > > > > > > I can figure out how to get a vector from a nulls position and Get Point > > > Normals from my geometry, I can then get the angle between them and put > > > than > > > into a Less than or equal to node, but how to transform a threshold > > > value > > > into either weightmap values, creating a sample set to emit from or > > > filtering an emission, I don't know. > > > > > > I was sort of hoping there would be a node or compound I had overlooked > > > which provided something I could use :) > > > > > > cheers > > > Morten > > > > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > > > > You can either > > > > > > > > Emit from the whole and delete the ones that aren't pointing in the > > > > right > > > > direction, (based on comparing the normal angle to your preferred > > > > vector) > > > > > > > > Or create a weightmap on the object and use ICE to set the values > > > > based > > > > upon > > > > the normal angle and use the weightmap in the Emit node. (This wont > > > > work > > > > on > > > > low poly meshes for obvious reasons) > > > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > > aren't > > > > pointing in the right direction, then emit from the resulting object. > > > > > > > > > > > > Number 1 is the easiest to set up. > > > > > > > > Paul > > > > > > > > > > > > -Original Message- > > > > From: Morten Bartholdy > > > > Sent: Tuesday, March 14, 2017 10:05 AM > > > > To: Userlist, Softimage > > > > Subject: Emit particles frm surfaces facing a particular direction? > > > > > > > > I have looked through the sample scenes but could not find something > > > > that > > > > does this. I want to emit particles from surfaces of an object that > > > > faces > > > > in > > > > a particular direction, either a custom vector or fom polygons facing > > > > a > > > > null. > > > > > > > > How can I do this? > > > > > > > > Thanks. > > > > > > > > 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. > > -- > 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: Emit particles frm surfaces facing a particular direction?
I'm making you a video if you can hold out a moment and I'll send the link -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 2:13 PM To: Official Softimage Users Mailing List.https://groups.google.com/forum/#!forum/xsi_list Subject: Re: Emit particles frm surfaces facing a particular direction? Also seems replies with attachments don't get through... MB > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > <x...@colorshopvfx.dk>: > > > It seems I am doing something wrong - I am not getting the right values. > > MB > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > The easiest thing is to emit over the whole object then do what you did > > and > > plug the output of your 'Less than' into a Delete Particle node. > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 11:19 AM > > To: Official Softimage Users Mailing List. > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so > > much > > the method that escapes me as the lack of a tool that does this. > > > > I can figure out how to get a vector from a nulls position and Get Point > > Normals from my geometry, I can then get the angle between them and put > > than > > into a Less than or equal to node, but how to transform a threshold > > value > > into either weightmap values, creating a sample set to emit from or > > filtering an emission, I don't know. > > > > I was sort of hoping there would be a node or compound I had overlooked > > which provided something I could use :) > > > > cheers > > Morten > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > You can either > > > > > > Emit from the whole and delete the ones that aren't pointing in the > > > right > > > direction, (based on comparing the normal angle to your preferred > > > vector) > > > > > > Or create a weightmap on the object and use ICE to set the values > > > based > > > upon > > > the normal angle and use the weightmap in the Emit node. (This wont > > > work > > > on > > > low poly meshes for obvious reasons) > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > aren't > > > pointing in the right direction, then emit from the resulting object. > > > > > > > > > Number 1 is the easiest to set up. > > > > > > Paul > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 10:05 AM > > > To: Userlist, Softimage > > > Subject: Emit particles frm surfaces facing a particular direction? > > > > > > I have looked through the sample scenes but could not find something > > > that > > > does this. I want to emit particles from surfaces of an object that > > > faces > > > in > > > a particular direction, either a custom vector or fom polygons facing > > > a > > > null. > > > > > > How can I do this? > > > > > > Thanks. > > > > > > 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. -- Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
Re: Emit particles frm surfaces facing a particular direction?
Also seems replies with attachments don't get through... MB > Den 14. marts 2017 klokken 13:34 skrev Morten Bartholdy > <x...@colorshopvfx.dk>: > > > It seems I am doing something wrong - I am not getting the right values. > > MB > > > > > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > > > > The easiest thing is to emit over the whole object then do what you did and > > plug the output of your 'Less than' into a Delete Particle node. > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 11:19 AM > > To: Official Softimage Users Mailing List. > > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > > Subject: Re: Emit particles frm surfaces facing a particular direction? > > > > Thanks Paul. I know stuf like this is trivial to you, but it is not so much > > the method that escapes me as the lack of a tool that does this. > > > > I can figure out how to get a vector from a nulls position and Get Point > > Normals from my geometry, I can then get the angle between them and put > > than > > into a Less than or equal to node, but how to transform a threshold value > > into either weightmap values, creating a sample set to emit from or > > filtering an emission, I don't know. > > > > I was sort of hoping there would be a node or compound I had overlooked > > which provided something I could use :) > > > > cheers > > Morten > > > > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > > > > You can either > > > > > > Emit from the whole and delete the ones that aren't pointing in the right > > > direction, (based on comparing the normal angle to your preferred vector) > > > > > > Or create a weightmap on the object and use ICE to set the values based > > > upon > > > the normal angle and use the weightmap in the Emit node. (This wont work > > > on > > > low poly meshes for obvious reasons) > > > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > > aren't > > > pointing in the right direction, then emit from the resulting object. > > > > > > > > > Number 1 is the easiest to set up. > > > > > > Paul > > > > > > > > > -Original Message- > > > From: Morten Bartholdy > > > Sent: Tuesday, March 14, 2017 10:05 AM > > > To: Userlist, Softimage > > > Subject: Emit particles frm surfaces facing a particular direction? > > > > > > I have looked through the sample scenes but could not find something that > > > does this. I want to emit particles from surfaces of an object that faces > > > in > > > a particular direction, either a custom vector or fom polygons facing a > > > null. > > > > > > How can I do this? > > > > > > Thanks. > > > > > > 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: Emit particles frm surfaces facing a particular direction?
It seems I am doing something wrong - I am not getting the right values. MB > Den 14. marts 2017 klokken 12:40 skrev p...@bustykelp.com: > > > The easiest thing is to emit over the whole object then do what you did and > plug the output of your 'Less than' into a Delete Particle node. > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 11:19 AM > To: Official Softimage Users Mailing List. > https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com > Subject: Re: Emit particles frm surfaces facing a particular direction? > > Thanks Paul. I know stuf like this is trivial to you, but it is not so much > the method that escapes me as the lack of a tool that does this. > > I can figure out how to get a vector from a nulls position and Get Point > Normals from my geometry, I can then get the angle between them and put than > into a Less than or equal to node, but how to transform a threshold value > into either weightmap values, creating a sample set to emit from or > filtering an emission, I don't know. > > I was sort of hoping there would be a node or compound I had overlooked > which provided something I could use :) > > cheers > Morten > > > > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > > > > You can either > > > > Emit from the whole and delete the ones that aren't pointing in the right > > direction, (based on comparing the normal angle to your preferred vector) > > > > Or create a weightmap on the object and use ICE to set the values based > > upon > > the normal angle and use the weightmap in the Emit node. (This wont work > > on > > low poly meshes for obvious reasons) > > > > Or make a duplicate of the surface, and use ICE to delete Polys that > > aren't > > pointing in the right direction, then emit from the resulting object. > > > > > > Number 1 is the easiest to set up. > > > > Paul > > > > > > -Original Message- > > From: Morten Bartholdy > > Sent: Tuesday, March 14, 2017 10:05 AM > > To: Userlist, Softimage > > Subject: Emit particles frm surfaces facing a particular direction? > > > > I have looked through the sample scenes but could not find something that > > does this. I want to emit particles from surfaces of an object that faces > > in > > a particular direction, either a custom vector or fom polygons facing a > > null. > > > > How can I do this? > > > > Thanks. > > > > 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: Emit particles frm surfaces facing a particular direction?
The easiest thing is to emit over the whole object then do what you did and plug the output of your 'Less than' into a Delete Particle node. -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 11:19 AM To: Official Softimage Users Mailing List. https://groups.google.com/forum/#!forum/xsi_list ; p...@bustykelp.com Subject: Re: Emit particles frm surfaces facing a particular direction? Thanks Paul. I know stuf like this is trivial to you, but it is not so much the method that escapes me as the lack of a tool that does this. I can figure out how to get a vector from a nulls position and Get Point Normals from my geometry, I can then get the angle between them and put than into a Less than or equal to node, but how to transform a threshold value into either weightmap values, creating a sample set to emit from or filtering an emission, I don't know. I was sort of hoping there would be a node or compound I had overlooked which provided something I could use :) cheers Morten > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > You can either > > Emit from the whole and delete the ones that aren't pointing in the right > direction, (based on comparing the normal angle to your preferred vector) > > Or create a weightmap on the object and use ICE to set the values based > upon > the normal angle and use the weightmap in the Emit node. (This wont work > on > low poly meshes for obvious reasons) > > Or make a duplicate of the surface, and use ICE to delete Polys that > aren't > pointing in the right direction, then emit from the resulting object. > > > Number 1 is the easiest to set up. > > Paul > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 10:05 AM > To: Userlist, Softimage > Subject: Emit particles frm surfaces facing a particular direction? > > I have looked through the sample scenes but could not find something that > does this. I want to emit particles from surfaces of an object that faces > in > a particular direction, either a custom vector or fom polygons facing a > null. > > How can I do this? > > Thanks. > > 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: Emit particles frm surfaces facing a particular direction?
Thanks Paul. I know stuf like this is trivial to you, but it is not so much the method that escapes me as the lack of a tool that does this. I can figure out how to get a vector from a nulls position and Get Point Normals from my geometry, I can then get the angle between them and put than into a Less than or equal to node, but how to transform a threshold value into either weightmap values, creating a sample set to emit from or filtering an emission, I don't know. I was sort of hoping there would be a node or compound I had overlooked which provided something I could use :) cheers Morten > Den 14. marts 2017 klokken 11:11 skrev p...@bustykelp.com: > > > You can either > > Emit from the whole and delete the ones that aren't pointing in the right > direction, (based on comparing the normal angle to your preferred vector) > > Or create a weightmap on the object and use ICE to set the values based upon > the normal angle and use the weightmap in the Emit node. (This wont work on > low poly meshes for obvious reasons) > > Or make a duplicate of the surface, and use ICE to delete Polys that aren't > pointing in the right direction, then emit from the resulting object. > > > Number 1 is the easiest to set up. > > Paul > > > -Original Message- > From: Morten Bartholdy > Sent: Tuesday, March 14, 2017 10:05 AM > To: Userlist, Softimage > Subject: Emit particles frm surfaces facing a particular direction? > > I have looked through the sample scenes but could not find something that > does this. I want to emit particles from surfaces of an object that faces in > a particular direction, either a custom vector or fom polygons facing a > null. > > How can I do this? > > Thanks. > > 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: Emit particles frm surfaces facing a particular direction?
You can either Emit from the whole and delete the ones that aren't pointing in the right direction, (based on comparing the normal angle to your preferred vector) Or create a weightmap on the object and use ICE to set the values based upon the normal angle and use the weightmap in the Emit node. (This wont work on low poly meshes for obvious reasons) Or make a duplicate of the surface, and use ICE to delete Polys that aren't pointing in the right direction, then emit from the resulting object. Number 1 is the easiest to set up. Paul -Original Message- From: Morten Bartholdy Sent: Tuesday, March 14, 2017 10:05 AM To: Userlist, Softimage Subject: Emit particles frm surfaces facing a particular direction? I have looked through the sample scenes but could not find something that does this. I want to emit particles from surfaces of an object that faces in a particular direction, either a custom vector or fom polygons facing a null. How can I do this? Thanks. 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.
