Problem importing 3D object made by blender

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Problem importing 3D object made by blender

Jinhyung Kim
Hi all,

I have problem with importing 3D object to the icub simulator. 

I make object using blender(v2.69) and mostly follow the guide stated in the simulator README.
I'm tying to import just a simple cube for test. 
I did,
1. convert the model into triangle(Ctrl + t)
2. Apply Scale/Rotation
3. Export as .x format and save in .../simConfig/models 
But I could not find "flip z" when export, so I skip this.(I'm not sure it's critical)

Then try to import the model as in README
yarp rpc /icubSim/world
world mk model model_name.x texture_name.bmp 1 1 1

Then the simulator is terminated with the error message as following,
ODE Message 2: mass must be > 0 in dMassCheck() File ../../../../../ode/src/mass.cpp Line 49

ODE Message 2: mass must be > 0 in dMassCheck() File ../../../../../ode/src/mass.cpp Line 49

ODE Message 2: mass must be > 0 in dMassCheck() File ../../../../../ode/src/mass.cpp Line 49

ODE Message 2: mass must be > 0 in dMassCheck() File ../../../../../ode/src/mass.cpp Line 49

ODE INTERNAL ERROR 1: assertion "dMassCheck(mass)" failed in dBodySetMass() [../../../../../ode/src/ode.cpp]
Aborted (core dumped)

I've tried to solve this problem with changing configuration but still cannot find the way.
It seems to me that the problem came from blender setup or exporting to .x file
because I can import given .x file in models directory(torso.x, hip.x and etc.)

I also checked that the ODE is set to double precision
The simulatior is running on Ubuntu 14.04 and iCub and Yarp version is 1.1.15 and 2.3.63 respectively

Does anyone have the similar problem or know the solution for this problem?

Regards,

Jinhyung


--
========================================
Jinhyung Kim
Cognitive Neuro-Robotics Lab, 
Department of Electrical Engineering, KAIST
Cell: 010-8025-9908
========================================

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