docs: public void setDepthsFrom3D(int view , List<Point3D_F64> locations ) {
  		if( locations.size() != pixels.numCols )
  			throw new IllegalArgumentException("Pixel count must be constant and match "+pixels.numCols);
  
  		int N = depths.numCols;
  		for (int i = 0; i < N; i++) {
  			depths.set(view,i, locations.get(i).z );
  		}
  	}