<story><title>MAR1D: First-Person Mario</title><url>https://mar1d.com/</url></story><parent_chain><item><author>samwillis</author><text>I think it would require one eye above the other to have depth perception in his 2d world.&lt;p&gt;Eyes can’t even be side-by-side as that axis doesn’t exist.&lt;p&gt;Having said that, the human brain is capable of reconstructing a 3d perception with only one eye through learnt understand and interpreting the picture change over time as you move. I image it’s the same for Mario, but in 2d.</text></item><item><author>worewood</author><text>Well, we see the world as a 2d projection BUT we (usually) have 2 eyes so we have some amount of 3d-info.&lt;p&gt;Maybe mario has 2 eyes too, which would give him some amount of 2d-info. (Just like an MRI can construct a 2d slice from 1d info). So the first person game should have maybe a depth info on those pixels.&lt;p&gt;What I mean, mario does not see only a line. He sees a silhouette of what lies ahead of him.</text></item></parent_chain><comment><author>bmitc</author><text>&amp;gt; I think it would require one eye above the other to have depth perception in his 2d world.&lt;p&gt;Is his world actually 2D though? Or a 3D world projected down to 2D? The latter is what I would expect.</text></comment>
<story><title>MAR1D: First-Person Mario</title><url>https://mar1d.com/</url></story><parent_chain><item><author>samwillis</author><text>I think it would require one eye above the other to have depth perception in his 2d world.&lt;p&gt;Eyes can’t even be side-by-side as that axis doesn’t exist.&lt;p&gt;Having said that, the human brain is capable of reconstructing a 3d perception with only one eye through learnt understand and interpreting the picture change over time as you move. I image it’s the same for Mario, but in 2d.</text></item><item><author>worewood</author><text>Well, we see the world as a 2d projection BUT we (usually) have 2 eyes so we have some amount of 3d-info.&lt;p&gt;Maybe mario has 2 eyes too, which would give him some amount of 2d-info. (Just like an MRI can construct a 2d slice from 1d info). So the first person game should have maybe a depth info on those pixels.&lt;p&gt;What I mean, mario does not see only a line. He sees a silhouette of what lies ahead of him.</text></item></parent_chain><comment><author>diob</author><text>Yeah, as someone with a lazy eye 3d honestly isn&amp;#x27;t much different than 2d.</text></comment>