CoppeliaSim forums

Hi,
i am not able to get a v-hacd mesh decomposition method work, since it is always crash once called.
but i had test this method in blender and pybullet , that this method should work well with my mesh file.
i thought there must be some bug in sim.simConvexDecompose( ) function.

would anyone to give a suggestion for how to fix this bug. i had noticed the source code in https://github.com/CoppeliaRobotics/sim ... xDecompose, but i do not know how to compile it.
would anyone be able to fix this bug.

Hello,

yes, we are aware that some parameter and mesh combinations can lead to crashes. Those crashes originate from the V-HACD routines directly.... did you try to use different parameters than the default parameters with your mesh?

Cheers

sorry for late reply , but i do not get the crash with the v-hacd method with the same default parameter in pybullet.
You can download the file here http://ycb-benchmarks.s3-website-us-eas ... le_16k.tgzand test it, for more model pls refer to http://ycb-benchmarks.s3-website-us-eas ... onaws.com/
Another question:
if i load the decomposed mesh which is processed by pybullet, copeliasim do not seem to recognize it as a convex hull.

CoppeliaSim will import meshes as a single shape. So if you are trying to import a convex decomposed mesh (i.e. a compound of convex meshes), those individual meshes will be merged into one single shape. Try to divide that shape with [Edit --> Grouping / merging --> Divide selected shapes]

Cheers

we have updated the convex decompose plugin to use the latest source code of V-HACD, and it doesn't crash anymore. What platform are you running on?

Cheers

i am running on the Ubuntu16.04.

Hi, I have the same problem here. So I'm trying to update the convex decompose plugin but don't know how, can you briefly explain it?
Running on Win10. Thank you.

Hello,

you can find the updated windows plugin here.

Cheers

It works! Thanks!