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Software Discussion
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Maya
A few quick questions
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23 Jul 2005Once I create a cluster, is there a way to go back to it and add/remove verticies from that selection set? I can't seem to find a way to go back to my original selection and add that one vertex that I missed
Another quick one re. blendshapes. I had my face skinned (albeit roughly) then started on blendshapes - as soon as I added one blendshape the face didn't interact with the bones (although the skin node was still there) I then did it the other way round and all was well... but do I have to do blendshapes first then skin the base object?
If that's the case how would you go about adding some more blendshapes without loosing the skinning
Thanks in advance
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ant- 73 posts25 Jul 2005yes you can add and remove stuff to clusters, you use the set membership tool or something, erm once again i cant really remember without actually loooking at maya, i might have a look tomorow and probebly tell you more exactly the process.
as for blendshapes you should be able to add blendshapes after skinning without any trouble, infact i use it as part of the skinning process to correct bad deformations.
you select all your blendshapes first then the skinned object last. you can do this as many times as you lke, but it will create a new row of blendshapes each time by default. you can always make a few spare ones when you start just in case... i usually leave a bout 3 extra.
by the way, UV your characters before adding blendshapes, as the UVs part of the blendshape process. so if your skinned character has perfect UVs but your blends are all messed up uvs from when you duplicated it. then each time you blend your textures will slide -
26 Jul 2005Thanks for the tips bud. I sorted out the blendshapes (I was actually creating new blendshapes - not adding targets to the existing blendshape )
I wouldn't have guessed that you have to UV before adding blendshapes (though UV mapping is not my stong point, I think you are safe to UV before or after blendshapes, moving the modifier up and down the stack is no problem there)
Heh, though I'm not at that point in Maya yet - in fact I've only opened the hypershade a couple of times. (why all those really bad names in Maya? 'hypershade' and 'hypergraph'... 'Material editor' and 'schematic view' sound much more appealing and more to the point
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Makes me feel like some Californian surfer... "Dude, like you tooohtally have to open the 'HyperWaveSurf control' and like, smoooooth out those curves" ... Oh, you mean the graph editor? Riiight...
(heh, forgive me - The mornings first coffee hasn't quite hit the mark yet) -
05 Aug 2005I'm having a little trouble with the local axis of objects. I'm using control shapes for an FK setup but once I freeze transformations to 'zero out' the object out I then have the problem of the control shapes's pivot point realigning to world space.
In Max it's a simple case of mirroring the object and it's axis and at any time you can rotate the objects pivot point. However, as far as I can see the only way to mirror an object is to duplicate it and have a negative value on the scale. So when I use the connection editor to link up the Z rotation of hand (on the mirrored joints), the hand will rotate down as the control shape rotates up.
I'm guessing this is just a workflow problem and there are different approaches to rigging, I actually sovled it by using the connection editor on one arm but using orient constraints on the other. But perhaps I should re-orient the bones? (or do as Ant said in another post and use the mirrored bones as a reference to 're-draw' the entire skeleton) Just seems a lot of extra work when flipping the pivot point itself would solve the problem... -
06 Aug 2005
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ant- 73 posts06 Aug 2005i just dont have maya at home now, which is great (means i relax) but its difficult to remember what i do without it in front of me. erm, i think you can solve this problem by grouping the bones and flipping the group, parrent the group to the bones above instead, ok to be honest i have no idea if this will work at all i just remember that the MPC rigging bible said never freeze transforms on bones for some reason, maybe i should install PLE
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