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View Full Version : motion builder5 to lightwave7.5 problem

itchart
03-04-2005, 10:38 AM
I have a character, boned using 3dDaves rig, which seems to work great.
Problem: can't get the model to follow the bones in MB.

here's what I've done.
move skeles to match character.
make weight map for each skele (is there an easier way?)
In layout, add, skele to bones, set up heirarchy: null, char, skele, hip, r leg, l leg, etc
shift b, properties, assign each bone to it's weight map with same name ( is this really nessary? cuz it's a pain to scroll though the menu. Is there a quick one step way to do this?)
save scene, export fbx.
MB. open file, all looks fine, charaterize, add motion, plot to control rig, plot to charater
input, choose skeleton, plot and boom, the rig walks but NOT the model.
I have tried this many times. The only time I got it to work was with an exported copy of MB's plasticman.
Does the model need to be symetircal?
My charater is not, I thought this was the problem So I made a quick simple model
that is symetrical and had the same problem.
Help please, thanks.
colkai
03-04-2005, 03:29 PM
First up, do a search on the old kaydara forums for Mb/LW workflow, there's a lot out there.
I'm not at my home PC right now, but basically I do this.
Set up a character based on the 3DDave rig
Set weight maps for arms, hands, body, LLeg, LFoot, RLeg,RFoot Head

Adjust skeles and set wight maps using DStorms super "Skelegon Editor"

Pull into Layout - make sure you have a Reference null set up. PArent mesh to this, activate bones, make sure parent in place is on. make sure leg links are parented to hips
exprot to MB, characterize
animate, plot motion to skeleton. Put model into t-stance
de-characterise - set view to models only
highlight mesh and delete
set view to normal - re-characerise (leaves just skeleton rig) - save FBX
load up initial scene in LW - merge FBX - should be fine
dalecampbelljr
03-05-2005, 06:24 AM
I have a character, boned using 3dDaves rig, which seems to work great.
Problem: can't get the model to follow the bones in MB.

here's what I've done.
move skeles to match character.
make weight map for each skele (is there an easier way?)
In layout, add, skele to bones, set up heirarchy: null, char, skele, hip, r leg, l leg, etc
shift b, properties, assign each bone to it's weight map with same name ( is this really nessary? cuz it's a pain to scroll though the menu. Is there a quick one step way to do this?)
save scene, export fbx.
MB. open file, all looks fine, charaterize, add motion, plot to control rig, plot to charater
input, choose skeleton, plot and boom, the rig walks but NOT the model.
I have tried this many times. The only time I got it to work was with an exported copy of MB's plasticman.
Does the model need to be symetircal?
My charater is not, I thought this was the problem So I made a quick simple model
that is symetrical and had the same problem.
Help please, thanks.


Are you resting the bones in Lightwave before exporting?
itchart
03-06-2005, 12:23 AM
whats resting the bones and hows it done?
dalecampbelljr
03-06-2005, 12:31 AM
whats resting the bones and hows it done?

It turns the bones on, you can look in the help content for more, but it is the letter "r" on the keyboard. THis makes the bones active.
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