GLuint Positions(std::vector<T>& dest) const
{
dest.resize(20*3*3);
const GLdouble* p = _positions();
const GLushort* i = _indices();
for(GLuint f=0; f!=20; ++f)
{
for(GLuint v=0; v!=3; ++v)
{
for(GLuint c=0; c!=3; ++c)
{
dest[f*9+v*3+c] = p[i[f*3+v]*3+c];
}
}
}
return 3;
}
GLuint Normals(std::vector<T>& dest) const
{
dest.resize(20*3*3);
const GLdouble* p = _positions();
const GLushort* i = _indices();
for(GLuint f=0; f!=20; ++f)
{
Vector<T, 3> v0(p+i[f*3+0]*3, 3);
Vector<T, 3> v1(p+i[f*3+1]*3, 3);
Vector<T, 3> v2(p+i[f*3+2]*3, 3);
Vector<T, 3> fn(Normalized(Cross(v1-v0, v2-v0)));
for(GLuint v=0; v!=3; ++v)
{
for(GLuint c=0; c!=3; ++c)
{
dest[f*9+v*3+c] = fn[c];
}
}
}
return 3;
}
/// Returns element indices that are used with the drawing instructions
IndexArray Indices(void) const
{
const GLushort* i = _indices();
return IndexArray(i, i+20*3);
}
/// Returns element indices that are used with the drawing instructions
IndexArray Indices(Default = Default()) const
{
const GLushort* i = _indices();
return IndexArray(i, i+20*3);
}