RE: Crank and piston rigging
One thing puzzles me though. I would have thought the Curve Param constraint could do what I have needed many times, ie constrain an object so it could move freely along a spline driven by something else by its other end, so to speak. Like a rod with a ring at the end hanging from a wire - you can pull the other end of the rod and it will only be able to move along the wire. I guess this requires a more complex system where the curve parameter is somehow driven by the object that drives the animation. MB > Den 7. november 2017 klokken 14:38 skrev Ola Madsen > : > > > Hey Morten, > > I don’t think you searched the online tutorials enough 😊 > Did you try this one: > https://urldefense.proofpoint.com/v2/url?u=http-3A__olamadsen.se_rigging-2Da-2Dpiston-2Dengine_&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=0W52eOqrD8_VgolLvGmtCMlJlPQrKoPFeVchLZT9A1w&s=F_IXdspGVBNRIkQnYMYFbTITyMRlELhOfs8bxYrF6Ho&e= > > Cheers > O > > -Ursprungligt meddelande- > Från: softimage-boun...@listproc.autodesk.com > [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy > Skickat: den 7 november 2017 13:57 > Till: Userlist, Softimage > Ämne: Crank and piston rigging > > I have a quick question for the rigging minded here about how you would rig > this one. > > I keep coming back to scenarios where I would like to have a curve > constraint, ie being able to constrain an object to stay on a curve while > being driven/moved by something else, like this scenario where I need the end > of piston arm to stay on the straight line (so axis constraint could do) > while being animated by the revolving crank axle. > > I am probably overcomplicating this, but the ideal solution escapes me so > far. I checked online tutorials which don't quite cover this scenario, except > for a C4D expresso one which I can't readily translate into XSI rigging. The > remaining part I think I can handle with various constraints. > > Any pointers will be much appreciated - 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.
RE: Crank and piston rigging
Thanks Ola - you are the man :) MB > Den 7. november 2017 klokken 15:40 skrev Ola Madsen > : > > > Hi Morten, > > I managed to find the old files for you. You can download them here: > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dropbox.com_s_9mg7o0py9v3lq2r_Piston-5FEngine.zip-3Fdl-3D0&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=LTZbEdmEMzYynO3iuXFJKimc5bteaetRLb2PWE9Bwos&s=Z-K73pnT1O-0nNI8OpQCCK7xpEw0SMfudrpmWL39Vw8&e= > > > Cheers > O > > -Ursprungligt meddelande- > Från: softimage-boun...@listproc.autodesk.com > [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy > Skickat: den 7 november 2017 15:14 > Till: Official Softimage Users Mailing List. > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_forum_-23-21forum_xsi-5Flist&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=LTZbEdmEMzYynO3iuXFJKimc5bteaetRLb2PWE9Bwos&s=1S_BzOlp_d0FSDFoRJoKGBMtcrHwbfqK44krAeZw_lY&e= > > Ämne: RE: Crank and piston rigging > > Hi Ola, > > I actually saw it but could not download the scene file, so I was trying to > translate your expression into my scenario. I have a V engine, so I also need > to tilt the cylinders in two directions without breaking stuff. > > Thanks for the pointer though - I had originally thought it could be done > with constraints and found that I will need expressions too. I just saw a > Maya tutorial where there is a two way constraint to make it work. Softimage > will not allow that warning me of a cycle, but I introduced an intermediate > null and now it works, with only a simple y-position expression and no > trigonometry. Next I will have to see if it can be parented and rotated. > > MB > > > > > Den 7. november 2017 klokken 14:38 skrev Ola Madsen > > : > > > > > > Hey Morten, > > > > I don’t think you searched the online tutorials enough 😊 > > Did you try this one: > > https://urldefense.proofpoint.com/v2/url?u=http-3A__olamadsen.se_rigging-2Da-2Dpiston-2Dengine_&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=0W52eOqrD8_VgolLvGmtCMlJlPQrKoPFeVchLZT9A1w&s=F_IXdspGVBNRIkQnYMYFbTITyMRlELhOfs8bxYrF6Ho&e= > > > > Cheers > > O > > > > -Ursprungligt meddelande- > > Från: softimage-boun...@listproc.autodesk.com > > [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy > > Skickat: den 7 november 2017 13:57 > > Till: Userlist, Softimage > > Ämne: Crank and piston rigging > > > > I have a quick question for the rigging minded here about how you would rig > > this one. > > > > I keep coming back to scenarios where I would like to have a curve > > constraint, ie being able to constrain an object to stay on a curve while > > being driven/moved by something else, like this scenario where I need the > > end of piston arm to stay on the straight line (so axis constraint could > > do) while being animated by the revolving crank axle. > > > > I am probably overcomplicating this, but the ideal solution escapes me so > > far. I checked online tutorials which don't quite cover this scenario, > > except for a C4D expresso one which I can't readily translate into XSI > > rigging. The remaining part I think I can handle with various constraints. > > > > Any pointers will be much appreciated - 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: Crank and piston rigging
Hi Morten, I managed to find the old files for you. You can download them here: https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dropbox.com_s_9mg7o0py9v3lq2r_Piston-5FEngine.zip-3Fdl-3D0&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=LTZbEdmEMzYynO3iuXFJKimc5bteaetRLb2PWE9Bwos&s=Z-K73pnT1O-0nNI8OpQCCK7xpEw0SMfudrpmWL39Vw8&e= Cheers O -Ursprungligt meddelande- Från: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy Skickat: den 7 november 2017 15:14 Till: Official Softimage Users Mailing List. https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_forum_-23-21forum_xsi-5Flist&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=LTZbEdmEMzYynO3iuXFJKimc5bteaetRLb2PWE9Bwos&s=1S_BzOlp_d0FSDFoRJoKGBMtcrHwbfqK44krAeZw_lY&e= Ämne: RE: Crank and piston rigging Hi Ola, I actually saw it but could not download the scene file, so I was trying to translate your expression into my scenario. I have a V engine, so I also need to tilt the cylinders in two directions without breaking stuff. Thanks for the pointer though - I had originally thought it could be done with constraints and found that I will need expressions too. I just saw a Maya tutorial where there is a two way constraint to make it work. Softimage will not allow that warning me of a cycle, but I introduced an intermediate null and now it works, with only a simple y-position expression and no trigonometry. Next I will have to see if it can be parented and rotated. MB > Den 7. november 2017 klokken 14:38 skrev Ola Madsen > : > > > Hey Morten, > > I don’t think you searched the online tutorials enough 😊 > Did you try this one: > https://urldefense.proofpoint.com/v2/url?u=http-3A__olamadsen.se_rigging-2Da-2Dpiston-2Dengine_&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=0W52eOqrD8_VgolLvGmtCMlJlPQrKoPFeVchLZT9A1w&s=F_IXdspGVBNRIkQnYMYFbTITyMRlELhOfs8bxYrF6Ho&e= > > Cheers > O > > -Ursprungligt meddelande- > Från: softimage-boun...@listproc.autodesk.com > [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy > Skickat: den 7 november 2017 13:57 > Till: Userlist, Softimage > Ämne: Crank and piston rigging > > I have a quick question for the rigging minded here about how you would rig > this one. > > I keep coming back to scenarios where I would like to have a curve > constraint, ie being able to constrain an object to stay on a curve while > being driven/moved by something else, like this scenario where I need the end > of piston arm to stay on the straight line (so axis constraint could do) > while being animated by the revolving crank axle. > > I am probably overcomplicating this, but the ideal solution escapes me so > far. I checked online tutorials which don't quite cover this scenario, except > for a C4D expresso one which I can't readily translate into XSI rigging. The > remaining part I think I can handle with various constraints. > > Any pointers will be much appreciated - 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: Crank and piston rigging
Hi Ola, I actually saw it but could not download the scene file, so I was trying to translate your expression into my scenario. I have a V engine, so I also need to tilt the cylinders in two directions without breaking stuff. Thanks for the pointer though - I had originally thought it could be done with constraints and found that I will need expressions too. I just saw a Maya tutorial where there is a two way constraint to make it work. Softimage will not allow that warning me of a cycle, but I introduced an intermediate null and now it works, with only a simple y-position expression and no trigonometry. Next I will have to see if it can be parented and rotated. MB > Den 7. november 2017 klokken 14:38 skrev Ola Madsen > : > > > Hey Morten, > > I don’t think you searched the online tutorials enough 😊 > Did you try this one: > https://urldefense.proofpoint.com/v2/url?u=http-3A__olamadsen.se_rigging-2Da-2Dpiston-2Dengine_&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=0W52eOqrD8_VgolLvGmtCMlJlPQrKoPFeVchLZT9A1w&s=F_IXdspGVBNRIkQnYMYFbTITyMRlELhOfs8bxYrF6Ho&e= > > Cheers > O > > -Ursprungligt meddelande- > Från: softimage-boun...@listproc.autodesk.com > [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy > Skickat: den 7 november 2017 13:57 > Till: Userlist, Softimage > Ämne: Crank and piston rigging > > I have a quick question for the rigging minded here about how you would rig > this one. > > I keep coming back to scenarios where I would like to have a curve > constraint, ie being able to constrain an object to stay on a curve while > being driven/moved by something else, like this scenario where I need the end > of piston arm to stay on the straight line (so axis constraint could do) > while being animated by the revolving crank axle. > > I am probably overcomplicating this, but the ideal solution escapes me so > far. I checked online tutorials which don't quite cover this scenario, except > for a C4D expresso one which I can't readily translate into XSI rigging. The > remaining part I think I can handle with various constraints. > > Any pointers will be much appreciated - 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.
RE: Crank and piston rigging
Hey Morten, I don’t think you searched the online tutorials enough 😊 Did you try this one: https://urldefense.proofpoint.com/v2/url?u=http-3A__olamadsen.se_rigging-2Da-2Dpiston-2Dengine_&d=DwIGaQ&c=76Q6Tcqc-t2x0ciWn7KFdCiqt6IQ7a_IF9uzNzd_2pA&r=GmX_32eCLYPFLJ529RohsPjjNVwo9P0jVMsrMw7PFsA&m=0W52eOqrD8_VgolLvGmtCMlJlPQrKoPFeVchLZT9A1w&s=F_IXdspGVBNRIkQnYMYFbTITyMRlELhOfs8bxYrF6Ho&e= Cheers O -Ursprungligt meddelande- Från: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] För Morten Bartholdy Skickat: den 7 november 2017 13:57 Till: Userlist, Softimage Ämne: Crank and piston rigging I have a quick question for the rigging minded here about how you would rig this one. I keep coming back to scenarios where I would like to have a curve constraint, ie being able to constrain an object to stay on a curve while being driven/moved by something else, like this scenario where I need the end of piston arm to stay on the straight line (so axis constraint could do) while being animated by the revolving crank axle. I am probably overcomplicating this, but the ideal solution escapes me so far. I checked online tutorials which don't quite cover this scenario, except for a C4D expresso one which I can't readily translate into XSI rigging. The remaining part I think I can handle with various constraints. Any pointers will be much appreciated - 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.
