<![CDATA[C4D Cafe - CA & Rigging]]> Character Animation / Rigging http://www.c4dcafe.com/ipb/index.php Thu, 29 Jul 2010 21:32:29 +0000 120 Keeping joints from rotating http://www.c4dcafe.com/ipb/index.php?/topic/53493-keeping-joints-from-rotating/
I'm ideally trying to rig a desk light. The handle is the goal of the IK and as you pull the lamp up and down, there is a piece on the neck of the lamp that maintains it's global rotation, the root null represents the base (main parent) of the lamp, so as I rotate the base, then of course that awkward piece has to rotate along with it but moving the goal has no influence over that piece's global rotation

Applying an up vector on that piece probably won't work because up vectors create general aims, not absolute aims

  • : Joints.png
]]> Thu, 29 Jul 2010 21:32:29 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53493-keeping-joints-from-rotating/ Joints through a spline http://www.c4dcafe.com/ipb/index.php?/topic/53464-joints-through-a-spline/ I know that traindriver exists, I need something like it but different.
I had hoped that I could achieve this with joints.
However the MOCCA IK spline tag does not seem to let me push the joints along a long spline or move the root joints at all.

I though i might have a solution when i found that animating the length of the first joint moved the other joints along the spline but on a complicated spline it does not work.

My first thought was to use align tags on nulls but this is really cumbersome especially since I have multiple splines in multiple shots and they would each need to be configured differently.

Does anyone have any ideas?

Thanks for reading,
Josh]]> Wed, 28 Jul 2010 15:14:26 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53464-joints-through-a-spline/ FK/IK switch http://www.c4dcafe.com/ipb/index.php?/topic/53444-fkik-switch/
I have a IK chain of joints and at a certain time I want to turn off IK and use FK to get more controll over the way each joint bends, but how do I then keep the goal of the chain at the same global position and rotation of the end joint during FK so that when I turn IK back on, the last joint would already be at the goal?]]> Tue, 27 Jul 2010 21:03:17 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53444-fkik-switch/ Rigging an FFD? http://www.c4dcafe.com/ipb/index.php?/topic/53424-rigging-an-ffd/
Does anyone know how to add Nulls to each point in the FFD deformer? Trying to animate with the PLA enabled does not give me proper control of the curves.
I figure this is an Xpresso rig but I cant seem to find the FFD point index to link them to Nulls.

Any help is appreciated

All the best,

Gabriel]]> Mon, 26 Jul 2010 17:13:12 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53424-rigging-an-ffd/ Reset Rotation http://www.c4dcafe.com/ipb/index.php?/topic/53396-reset-rotation/
Edit never mind. I just found it in a search that found an old thread where Brian posted it. Thanx again Brian. :-)]]> Sat, 24 Jul 2010 00:18:44 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53396-reset-rotation/ Trouble Rigging Character http://www.c4dcafe.com/ipb/index.php?/topic/53395-trouble-rigging-character/ I'm trying to setup a rig from scratch based on "the Red Guy rig" from this forum. Specifically, I'm having trouble setting up the controls for my rig. I can't seem to emulate the red guy rig right. For instance when I grab the whole character it moves around like a rag doll instead of in one piece??? Also, I set up some poles for the elbows and knees but they don't do anything??? Attached is a copy of the "red Guy Rig" file as well as my rig file. Any help would greatly be appreciated. Ive been fighting with this for over a week! Thanks

Red Guy Rig (generic-rig.c4d):
http://joelhebert.com/wp-content/uploads/2010/07/generic-rig.c4d

My Rig (generic rig-16.c4d):
http://joelhebert.com/wp-content/uploads/2010/07/generic-rig-16.c4d

I am using C4D 11.5 Broadcast Edition w/the advanced renderer (no mocca)

Joel H.

joelhebert.com

]]> Fri, 23 Jul 2010 23:48:40 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53395-trouble-rigging-character/ Adding new polys to uvw tag and or base tag http://www.c4dcafe.com/ipb/index.php?/topic/53387-adding-new-polys-to-uvw-tag-and-or-base-tag/
I've received a model as an obj file from a .max project and the mesh is a little messy. There are uvw tags and when i put the jpgs on for the textures the tags work fine. However if i try to clean up the mesh (i.e. create new poly's or delete points/edges and bridge the gaps) the new poly's are not part of the mesh and just have the jpg layed over the poly. I'm hoping there is an easy fix for this that i don't know. Any help would be greatly appreciated.]]> Fri, 23 Jul 2010 14:57:57 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53387-adding-new-polys-to-uvw-tag-and-or-base-tag/ Paging Cactus Dan?...Forearm Twist? http://www.c4dcafe.com/ipb/index.php?/topic/53382-paging-cactus-danforearm-twist/

After playing about with the hand movement,i think i need to add some forearm twist,the character is quite realistic and the movement when the hand is twisted isn't really great..

Is there a relatively easy method to add the twist to the forearm? or do i need to dismantle my rig?...and is it possible that i could get this twist by using a morph tied to the hand twist,rather than adding a bone?

Cheers,
mala]]> Fri, 23 Jul 2010 12:10:59 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53382-paging-cactus-danforearm-twist/ Mech Skinning http://www.c4dcafe.com/ipb/index.php?/topic/53377-mech-skinning/
I downloaded a free model of an AT-AT on turbosquid and i build a pretty nice quadruped Rig (for a beginner :))

I did a tutorial from 3DKiwi on rigging and the rig works fine but when i click 'Bind' the auto-weigh(t)ing goes very wrong (offcourse, i guess)

What is the best way to weigh the joints manually to the mesh? Because when i want to paint the weight-map it seems i can only paint the body and not the legs for example.

(I guess 'painting' a weightmap for a mechanical thing is something silly too, am i correct?)

Thanks in advance,
Giso Spijkerman (.nl)

ps. should i upload the file? I could, but i don't know it that is againt turbosquids policy.]]> Fri, 23 Jul 2010 09:58:59 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53377-mech-skinning/ How To Resize A Fully Rigged Character. http://www.c4dcafe.com/ipb/index.php?/topic/53373-how-to-resize-a-fully-rigged-character/
I made a fully rigged character which has everything in it like talk, walk, blink, grab something etc. I made the character way bigger than my others which have to be in the scene. So I have to reduce the size. When I tried this with the scale tool it made the whole scene go bonkers. I would be very happy if some one could help me out.]]> Fri, 23 Jul 2010 03:45:05 +0000 http://www.c4dcafe.com/ipb/index.php?/topic/53373-how-to-resize-a-fully-rigged-character/