heres how you would draw reality:
http://www.geocities.com/~jlhagan/K9-14/draw_five.htm
if you look to an infinite chess board there will be a left vanishing point and a right vp
that if you take a picture with an angle of view of more than 90º which is easy
now imagine you put besides to the horizontal infinite chessboard another one perpendicular to the first, vertical
now you have besides the left vp and right one an up vanishing point and a bottom one total 4 vanishing points
so if you take a picture of reality with abox camera no lens if theres an angle of view of more than 90º youll have 4 vanishing points
straight lines in reality will be seen straight in the picture
but check this out:
http://www.termespheres.com/perspective.html
four point perspective means representing straight lines bent which contradicts the imagine shown by the camera which therefore cant be a representation of reality but an illusion
a projection of a straight line on a plane surface can only be straight but on the other hand its only representation in a 4 point perspective is circled
in other words a pictur with an angle of view of more than 90º should have 4 vanishing point but at its most in this reality only has three because if you add the fourth straight lines turn into curves
http://www.geocities.com/~jlhagan/K9-14/draw_five.htm
if you look to an infinite chess board there will be a left vanishing point and a right vp
that if you take a picture with an angle of view of more than 90º which is easy
now imagine you put besides to the horizontal infinite chessboard another one perpendicular to the first, vertical
now you have besides the left vp and right one an up vanishing point and a bottom one total 4 vanishing points
so if you take a picture of reality with abox camera no lens if theres an angle of view of more than 90º youll have 4 vanishing points
straight lines in reality will be seen straight in the picture
but check this out:
http://www.termespheres.com/perspective.html
four point perspective means representing straight lines bent which contradicts the imagine shown by the camera which therefore cant be a representation of reality but an illusion
a projection of a straight line on a plane surface can only be straight but on the other hand its only representation in a 4 point perspective is circled
in other words a pictur with an angle of view of more than 90º should have 4 vanishing point but at its most in this reality only has three because if you add the fourth straight lines turn into curves