Re: Snapping to grid
no not at all
'isometric' refers to a method of projecting the three 3D dimensions onto a 2D surface
'iso' means 'the same' ; 'metric' as in 'measure' - an isometric system has all three dimensions projected[foreshortened] equally
rendering 3D on a 2D surface is always going to involve compromise - if you are drawing a solid object then is usually not too bad, but if you are drawing plans that are outline in nature then it can become very difficult and complex to show the 3D without the visible back interfering visually with the visible front - it's a complex subject and like I say I am no expert
its up to you which way you do it, but first I would get a firm grasp of perspective, and then decide which method of projection is appropriate for the job in hand
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