Function to color vertices from an interpolation of its bones

fill_color_from_weight

  void mesh::fill_color_from_weight(int nbBones)
  {
    srand(42);
    std::vector<vec3> boneColor;
    for(unsigned int b=0; b<nbBones; b++)
    {
      //  float iBone = (float)b/(float)nbBones;
        boneColor.push_back(vec3(float(rand())/RAND_MAX,float(rand())/RAND_MAX,float(rand())/RAND_MAX));
    }

    v_color.resize(v_vertices.size());
    for(unsigned int k=0,N=v_vertices.size();k<N;++k)
    {
        vec3 color = vec3(0.0,0.0,0.0);
        for (unsigned s = 0; s < 6; s+=1) // Pour tous les poids de skinning
        {
            int   bone   = v_skinning[k].bones[s]; //   numero de l'os = ...
            float weight = v_skinning[k].weights[s];// /sumweight; //   poids de skinning = ...
            color += weight * boneColor[bone];
        }
        v_color[k] = color;
    }

  }