Re: nulls2mesh
Hey Rob, You're linking to a private url for your Gmail pointing to an attachment. Can't do that. It's unusable for everyone else. Can you get the image and attach it to your email or put it on http://imgur.com or some other image upload site for us to see? Cheeers, -- Alan On Wed, Sep 5, 2012 at 7:09 AM, Rob Chapman tekano@gmail.com wrote: ah yeah - there you go, well remembered Ciaran 'convex hull' was the search term, from the same thread Grahame fuller did that in ICE only - won't take you long to rebuild from the image description Lawrence ;) https://mail-attachment.googleusercontent.com/attachment/u/0/?ui=2ik=3bf826a559view=attth=12f698c5d63caa9dattid=0.1.0disp=inlinesafe=1zwsaduie=AG9B_P-vyaBOEqzPxsaMIRCb2anDsadet=1346842977331sads=6GL42IzMUakN2KC52Ld4_NbnUKMsadssc=1 as you can see the gift wrapping algorithm is not so easy ! On 5 September 2012 11:55, Ciaran Moloney moloney.cia...@gmail.comwrote: Sounds like you want a convex hull of the null's points. Pretty sure there was a compound once, if not you might try Mr. LaForge's Convex Hullhttp://frenchdog.wordpress.com/2012/01/05/happy-2012/ICE node. On Wed, Sep 5, 2012 at 11:13 AM, Rob Chapman tekano@gmail.comwrote: yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.comwrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.comwrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.comwrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence -- - Ciaran
Re: nulls2mesh
This image reminds me that ice needs dot node From: Rob Chapman Sent: Friday, September 07, 2012 5:56 PM To: softimage@listproc.autodesk.com Subject: Re: nulls2mesh Hi Alan Apologies for that- I thought if I could see it ok anyways here it is reattached. impressive spaghetti but no information can be ascertained as its too small detail but its from this original thread https://groups.google.com/forum/?fromgroups=#!searchin/xsi_list/convex$20hull/xsi_list/HcwOCOr2b_c/azmTxe3zlK8J hope that works Best Rob On 7 September 2012 16:47, Alan Fregtman alan.fregt...@gmail.com wrote: Hey Rob, You're linking to a private url for your Gmail pointing to an attachment. Can't do that. It's unusable for everyone else. Can you get the image and attach it to your email or put it on http://imgur.com or some other image upload site for us to see? Cheeers, -- Alan On Wed, Sep 5, 2012 at 7:09 AM, Rob Chapman tekano@gmail.com wrote: ah yeah - there you go, well remembered Ciaran 'convex hull' was the search term, from the same thread Grahame fuller did that in ICE only - won't take you long to rebuild from the image description Lawrence ;) https://mail-attachment.googleusercontent.com/attachment/u/0/?ui=2ik=3bf826a559view=attth=12f698c5d63caa9dattid=0.1.0disp=inlinesafe=1zwsaduie=AG9B_P-vyaBOEqzPxsaMIRCb2anDsadet=1346842977331sads=6GL42IzMUakN2KC52Ld4_NbnUKMsadssc=1 as you can see the gift wrapping algorithm is not so easy ! On 5 September 2012 11:55, Ciaran Moloney moloney.cia...@gmail.com wrote: Sounds like you want a convex hull of the null's points. Pretty sure there was a compound once, if not you might try Mr. LaForge's Convex Hull ICE node. On Wed, Sep 5, 2012 at 11:13 AM, Rob Chapman tekano@gmail.com wrote: yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.com wrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.com wrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.com wrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence -- - Ciaran
Re: nulls2mesh
true - is 'pass through' not the similar as a dot node? On 7 September 2012 17:12, piotrek marczak piotrek.marc...@gmail.comwrote: This image reminds me that ice needs dot node *From:* Rob Chapman tekano@gmail.com *Sent:* Friday, September 07, 2012 5:56 PM *To:* softimage@listproc.autodesk.com *Subject:* Re: nulls2mesh Hi Alan Apologies for that- I thought if I could see it ok anyways here it is reattached. impressive spaghetti but no information can be ascertained as its too small detail but its from this original thread https://groups.google.com/forum/?fromgroups=#!searchin/xsi_list/convex$20hull/xsi_list/HcwOCOr2b_c/azmTxe3zlK8J hope that works Best Rob On 7 September 2012 16:47, Alan Fregtman alan.fregt...@gmail.com wrote: Hey Rob, You're linking to a private url for your Gmail pointing to an attachment. Can't do that. It's unusable for everyone else. Can you get the image and attach it to your email or put it on http://imgur.com or some other image upload site for us to see? Cheeers, -- Alan On Wed, Sep 5, 2012 at 7:09 AM, Rob Chapman tekano@gmail.com wrote: ah yeah - there you go, well remembered Ciaran 'convex hull' was the search term, from the same thread Grahame fuller did that in ICE only - won't take you long to rebuild from the image description Lawrence ;) https://mail-attachment.googleusercontent.com/attachment/u/0/?ui=2ik=3bf826a559view=attth=12f698c5d63caa9dattid=0.1.0disp=inlinesafe=1zwsaduie=AG9B_P-vyaBOEqzPxsaMIRCb2anDsadet=1346842977331sads=6GL42IzMUakN2KC52Ld4_NbnUKMsadssc=1 as you can see the gift wrapping algorithm is not so easy ! On 5 September 2012 11:55, Ciaran Moloney moloney.cia...@gmail.comwrote: Sounds like you want a convex hull of the null's points. Pretty sure there was a compound once, if not you might try Mr. LaForge's Convex Hull http://frenchdog.wordpress.com/2012/01/05/happy-2012/ ICE node. On Wed, Sep 5, 2012 at 11:13 AM, Rob Chapman tekano@gmail.comwrote: yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.comwrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.comwrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.comwrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence -- - Ciaran
nulls2mesh
Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.com wrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
Hi, I cobbled together a solution for this a while ago. Depends on the shape the nulls form, this was for more of a terrain scenario. 1. Duplicate a small piece of geometry at each of the nulls positions (e.g. tetrahedron). using script/ice/etc. 2. Scaled them all to zero so all the vertices sat on the relevant nulls position. 3. Merged them together to create one piece of geo. (filtered out extra points maybe). 4. Positioned a fine grid near the points (so theres at least a couple of grid squares between each null). 5. Shrinkwrapped the grid to the merged mesh using Closest Vertex to snap all the grid points to the closest available point. 6. Filtered points again. It's a bit rough but may do if you just need matte/shadows/reflections passes etc. Was handy for a tracked shot on uneven ground. Adam. From: Lawrence Pankhurst lp3ds...@gmail.com To: softimage@listproc.autodesk.com Sent: Wednesday, 5 September 2012, 9:17 Subject: nulls2mesh Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.com wrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.com wrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
Thanks Adam, Will give that a go, sounds like it will do the job I'm after! Cheers Lawrence On Wed, Sep 5, 2012 at 10:55 AM, Adam Seeley adam_see...@yahoo.com wrote: Hi, I cobbled together a solution for this a while ago. Depends on the shape the nulls form, this was for more of a terrain scenario. 1. Duplicate a small piece of geometry at each of the nulls positions (e.g. tetrahedron). using script/ice/etc. 2. Scaled them all to zero so all the vertices sat on the relevant nulls position. 3. Merged them together to create one piece of geo. (filtered out extra points maybe). 4. Positioned a fine grid near the points (so theres at least a couple of grid squares between each null). 5. Shrinkwrapped the grid to the merged mesh using Closest Vertex to snap all the grid points to the closest available point. 6. Filtered points again. It's a bit rough but may do if you just need matte/shadows/reflections passes etc. Was handy for a tracked shot on uneven ground. Adam. -- *From:* Lawrence Pankhurst lp3ds...@gmail.com *To:* softimage@listproc.autodesk.com *Sent:* Wednesday, 5 September 2012, 9:17 *Subject:* nulls2mesh Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.com wrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.com wrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.com wrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence
Re: nulls2mesh
Sounds like you want a convex hull of the null's points. Pretty sure there was a compound once, if not you might try Mr. LaForge's Convex Hullhttp://frenchdog.wordpress.com/2012/01/05/happy-2012/ICE node. On Wed, Sep 5, 2012 at 11:13 AM, Rob Chapman tekano@gmail.com wrote: yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.com wrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.com wrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.comwrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence -- - Ciaran
Re: nulls2mesh
ah yeah - there you go, well remembered Ciaran 'convex hull' was the search term, from the same thread Grahame fuller did that in ICE only - won't take you long to rebuild from the image description Lawrence ;) https://mail-attachment.googleusercontent.com/attachment/u/0/?ui=2ik=3bf826a559view=attth=12f698c5d63caa9dattid=0.1.0disp=inlinesafe=1zwsaduie=AG9B_P-vyaBOEqzPxsaMIRCb2anDsadet=1346842977331sads=6GL42IzMUakN2KC52Ld4_NbnUKMsadssc=1 as you can see the gift wrapping algorithm is not so easy ! On 5 September 2012 11:55, Ciaran Moloney moloney.cia...@gmail.com wrote: Sounds like you want a convex hull of the null's points. Pretty sure there was a compound once, if not you might try Mr. LaForge's Convex Hullhttp://frenchdog.wordpress.com/2012/01/05/happy-2012/ICE node. On Wed, Sep 5, 2012 at 11:13 AM, Rob Chapman tekano@gmail.com wrote: yeah I dont think there was ever a nulls2mesh - nulls2points easy and vertex2nulls yes :) for a clean topo the point position array is easy as you have that, its just the description of each polygon, or the order of each vertex in every polygon - how is this to be made? if the desired mesh is pretty simple shape you could try starting with a simple surrounding geometry and in ICE moving points to the nearest null On 5 September 2012 10:56, Lawrence Pankhurst lp3ds...@gmail.com wrote: Nice clean mesh would be good, it's a one off so I might just do it by hand, just thought it would be a useful tool to have and it would exist already (sure there used to be a script)!! Polygoniser takes the nulls but gives blobs rather then a single mesh! Thanks for looking though! Cheers Lawrence On Wed, Sep 5, 2012 at 9:42 AM, Rob Chapman tekano@gmail.comwrote: oh! ICE topo should be able to do this, :) but not sure how you are to build the polygon description from a set of random positions!? not so easy what kind of mesh are you after? if its not just a regular clean topology then you could simply put all nulls into a group and use the global.kini.pointpositions to feed into a polygoniser mesh. hth On 5 September 2012 09:17, Lawrence Pankhurst lp3ds...@gmail.comwrote: Hi guys, I thought I remembered a nulls2mesh script knocking about, can't find it anywhere! I've got a set of nulls and want to turn them into a mesh, ie position of each null becomes a vertex in said mesh! So anyone now where the script is or is there an ICE tool? Had a look on http://rray.de/xsi/ but couldn't see what I was after! Any help appreciated. Cheers Lawrence -- - Ciaran
Re: nulls2mesh
for sure! but it was Mr Pankhurst who asked first :) On 5 September 2012 12:57, Chris Chia chris.c...@autodesk.com wrote: Hey Rob, do you need a compound for building the description? I might have a plugin for you... Chris
Re: nulls2mesh
Oops, after reading on what he wants, it's pretty unpredictable as to how the polygon description should be... Mine only reads from a input mesh info and output a new mesh ;) (for topo caching mostly) Chris On 5 Sep, 2012, at 8:02 PM, Rob Chapman tekano@gmail.commailto:tekano@gmail.com wrote: for sure! but it was Mr Pankhurst who asked first :) On 5 September 2012 12:57, Chris Chia chris.c...@autodesk.commailto:chris.c...@autodesk.com wrote: Hey Rob, do you need a compound for building the description? I might have a plugin for you... Chris attachment: winmail.dat
Re: nulls2mesh
Hi Guys, Thanks for all the replies, I went with Adam's solution in the end, quick and dirty but did the job, I'll have a look at the convex hull stuff when I get a bit more time!! Cheers Lawrence On Wed, Sep 5, 2012 at 1:13 PM, Chris Chia chris.c...@autodesk.com wrote: Oops, after reading on what he wants, it's pretty unpredictable as to how the polygon description should be... Mine only reads from a input mesh info and output a new mesh ;) (for topo caching mostly) Chris On 5 Sep, 2012, at 8:02 PM, Rob Chapman tekano@gmail.commailto: tekano@gmail.com wrote: for sure! but it was Mr Pankhurst who asked first :) On 5 September 2012 12:57, Chris Chia chris.c...@autodesk.commailto: chris.c...@autodesk.com wrote: Hey Rob, do you need a compound for building the description? I might have a plugin for you... Chris
