rigging partition geo based on largest boneCapture weight

[kaffee, junge]

hey all,

is there a way to partition points based on the 'boneCapture w' attribute with the highest value?

I have a skinned character and for rigging purposes I'd like to slice the geo into parts.
Pretty much what the maya SuOP node 'skinchop' does.

much obliged! 

 

[anim]

here is one way

you can get bone weights as array using Capture Attribute Unpack SOP and then use VEX to create name attribute for bone with maximum influence

float maxweight = -1;
int boneidx = -1;
foreach(int i; float weight;f[]@boneCapture_data)
{
    if(weight > maxweight)
    {
        maxweight = weight;
        boneidx = i[]@boneCapture_index[i];        
    }
}
s@name = boneidx != -1 ? string[](detail(0, "boneCapture_pCaptPath"))[boneidx] : ""; 

then promote it to prim and split your mesh using Primitive Split SOP

ts_split_by_maxweighted_bone.hip

[kaffee, junge]

ah, that is a great way, thanks Tomas!