docs: public static Point3D_F64 renderPixel( DMatrixRMaj cameraMatrix , Point4D_F64 X , @Nullable Point3D_F64 x) {
  		if( x == null )
  			x = new Point3D_F64();
  		ImplPerspectiveOps_F64.renderPixel(cameraMatrix, X, x);
  		return x;
  	}