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SoliForum - 3D Printing Community → 3D Modelling/Scanning/Design → Do you ever get 3D Vertigo?
Occasionally, while Orbiting an object round and round, up and down, I get real dizzy like I might fall out of my chair. At first I thought is might be a health concern but now I'm wondering if it isn't vertigo.
Anyone else experience this?
Sounds similar to the effects of Spatial Disorientation - what pilots get when they loose visual reference with the horizon causing them to think they are banking when they are in fact straight and level.. so they 'correct' the bank, and as a result, start turning but their mind now tells them they are straight and level...
But given its on the ground.. maybe you just have 'abnormally large perceptual and postural responses to disorientating visual environments' to quote a paper: http://brain.oxfordjournals.org/content/124/8/1646.full - and interesting to note here they don't correlate it to a history of trait anxiety or motion sickness... so you can be a VV sufferer - but not get car sick 
Some peoples sense of balance is primarily derived from the inner ear, however it is heavily influenced by visual cues. If the two are out of sync, lots of people tend to have adverse effects. The brain just can't cope so starts tripping out.
Its also been known to be exacerbated by other physiological conditions - which is why somepeople get 'car sick' and others dont.. and even the most hardened naval veteran can succomb on occasions to 'sea sickness' - which again is in part caused by an inner-ear / visual cue mismatch - and why focusing at a high far-off point such as a cliff-top (where this mismatch is not so visually apparent) can sometimes help matters..
These issues is whats bugged the crap out of VR developers for years... if you are hypersensitive, the sensation of the VR Visual Cues freaks out your brain because your inner ear is saying "No, we are standing on our feet with 'up' above our heads" despite the VR saying you're on a roller coaster going through a 2g loop.....
Never had it myself - but I've seen similar effects...
Try not focusing on the object, sit back a bit more from the screen, and make sure you can see the monitor frame stationary against a background... focusing in on the 3D render causes you to filter these 'im stationary' cues out and causes the vertigo-like sensations...
My wife can't take perspective videos (like POV roller coaster video) without actually having the physical sensation of movement... You learn to re-orient if you continue, but I would recommend stepping away for a few minutes just to get your bearings.
I had this pretty bad when I first started using SketchUp. I'm a gamer so I'm used to controlling my view on a monitor, rapid movement etc. I'm also a skydiver and have no issues when being upside down etc. What I believe caused the issue was I did not know the application well at first and mouse movements would not produce the result I was expecting, so it gave me a sense of loss of control and sent my stomach turning. After some practice with SketchUp and gaining an understanding of the controls the sense of vertigo went away. Good luck!
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