RE: [Algorithms] Quadric Error Metric Details.

[Andrew V. <av...@in...>]

> It's not the squared distance from the average plane; it's the sum of
squared distances from all the individual planes.

Yeah, just worked through the maths from scratch - I was assuming that
the sum of the two matrices wouldn't represent the correct thing for it
to work like this - but it seems to. :)

Ta!