1.0 link Rainbow Dash Network http://rainbowdash.net/ Alcoholic Beast (drinkingpony) http://rainbowdash.net/drinkingpony http://rainbowdash.net/notice/5463918 @<span class="vcard"><a href="http://rainbowdash.net/user/60" class="url" title="Scribus"><span class="fn nickname mention">scribus</span></a></span> Nonono. Our brain just gets 2 images, both 2d, together with the information of how much the iris has to focus, that gives our brain the illusion that something is far away or near ( because you combine it with knowledge of how things usually are. Which can really work to your detriment in things like <a href="http://rainbowdash.net/url/875173" title="https://youtu.be/QqJgKdh_f2s?t=190" class="attachment thumbnail" id="attachment-875173" rel="nofollow external">http://rainbowdash.net/url/875173</a> or <a href="https://youtu.be/A4QcyW-qTUg?t=31" title="https://youtu.be/A4QcyW-qTUg?t=31" class="attachment thumbnail" id="attachment-875174" rel="nofollow external">https://youtu.be/A4QcyW-qTUg?t=31</a> )<br /><br />Optical tricks were actually used in Lord of the Rings quite a bit so they wouldn't have to make use of vertically challenged people much.<br /><br />But... That is not 3D ! That is just using 2D information filtered through both memories and something you could phraise as 'biological trigonometry'<br /><br />3D vision would actually be something like looking around a tree, while not moving your head.<br /><br />So some would call what we have to be 2,5 D ( since we can sense distance with 2D input ). However then video games raise their head and go &quot;EXCUSE ME !!! I am 2,5 D !!!&quot; and muddy the whole issue.