In some instances, there is no rigid difference in between these phases; in this sort of circumstances modeling is simply part of the scene development method (This is actually the case, for instance, with Caligari trueSpace and Realsoft 3D). This method is especially helpful in capturing secondary and tertiary shadows https://blogging4passion.com/3d-rendering-revolutionizing-architecture-with-exterior-interior-designs-virtual-tours-and-architectural-animations/