Subject:
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Using Blender to animate Ldraw models
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Newsgroups:
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lugnet.cad
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Date:
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Sun, 2 Jul 2006 01:01:57 GMT
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Viewed:
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1874 times
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Hello,
I have been working on using Blender to animate Ldraw models. Using Yann
Vernier's import scripts and suggestions, and with additional suggestions from
Carsten Mueller, I have been able to import models, but I am seeing a few
strange things and am having some problems with armatures and animations. I am
currently using Blender 2.41, but a lot of the documentation I read refers to
2.3x versions.
With the import scripts, when I import an Ldraw model, the figure seems to be
very large and has a different orientation. The top view in Blender shows the
back of the model. I have been scaling and rotating the models, but then when I
try to work with armatures I sometimes get parts of a minifig that lose those
transformations and don't fit with the rest of the body. I suppose this could
be a left-handed versus right-handed coordinate system issue.
The main problem I am having, though, has to do with controlling parts of the
minifig with bones in the armature. What I have been trying to do is start out
with something simple and add a bone to a leg. I read about making a vertex
group with the same name as the bone that it goes with, but haven't been able to
get the connection right. When I go into Pose Mode and rotate the leg bone, the
mesh for the leg doesn't go with it.
I looked at Carsten Mueller's example of NLA for a minifig, which is helpful,
but I'm not sure how he made it. In particular, I'm not sure how he made the
vertex groups. In his post he mentioned a "joined mifi-mesh", but I'm not sure
how the meshes for the Ldraw parts were joined, or how the vertex groups were
created.
I've looked at the manual and the Noob to Pro wiki book, but haven't found them
very helpful. If Carsten or Yann or anyone else has some suggestions I would
appreciate it.
Thanks,
Brian Durney
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Message has 5 Replies:
 | | Re: Using Blender to animate Ldraw models
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| (...) Can you give a link to the python scripts used for importing DAT files into Blender? Currently I am using a program that converts DAT into other formats like OBJ or 3DS, But it would be nicer to import the DAT into Blender directly. (18 years ago, 2-Jul-06, to lugnet.cad)
| | | Re: Using Blender to animate Ldraw models
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| W00T another Blenderhead! :) I've tried to make an animation out of one of Tim Gould's mechs, with minimal sucess. However, it seems easier to seperate the object to be animated into the various parts that are going to move, and parent those to the (...) (18 years ago, 8-Jul-06, to lugnet.cad)
| | | Re: Using Blender to animate Ldraw models
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| Hi Brian, i have modified Yanns import script to match the blender coordinate system and scaled the model down by ten or so. After correcting the face errors esp. in the legs and head meshes i joined the whole mifi model into one mesh (select all (...) (18 years ago, 23-Jul-06, to lugnet.cad)
| | | Re: Using Blender to animate Ldraw models
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| Hi Blenderheads, i've started a little tutorial describing how i animate my minifigs. Beside this, i have uploaded a little animation of my pneumatic grabber to <link (URL) Carsten (18 years ago, 23-Jul-06, to lugnet.cad, FTX)
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