Hi pcstew3! Excellent question, and sophisticated observation! The distance between the DVP and vanishing point sets the focal length or lens used in our "camera" for a one point perspective scene. Think of it like a photographer switching between lenses from wide angle to normal to a long lens to take pics of a perfect cube: i.imgur.com/ed6tvUY.gif Hope that makes sense!
I'm gonna have to download this video and play it in slow motion. Sorry, I don't mean any disrespect. It's a lot to learn. This is exactly what I've been looking for. Thank you so much. YOU ROCK!!!
I'm not sure that I can ask you this but the 45° Diagonal Vanishing Point could be put at ANYWHERE on Horizon Line but the longer distance between DVP and VP the more perfect the square is, am I right?
The cube will look distorted when the vanishing points are too close due to the limitations of linear perspective. Curvilinear perspective is a more accurate representation of how the human eye perceives depth. The distance between the DVP and vanishing point sets the focal length or lens used in our "camera" for a one point perspective scene. Think of it like a photographer switching between lenses from wide angle to normal to a long lens to take pics of a perfect cube: i.imgur.com/ed6tvUY.gif
hi, I tried your method but I realized that the closer I put the diagonal vanishing point to the vanishing point, the narrower and longer the cube became, so I'm wondering if there is a limit for the distance between the cube and the horizon line, and the vanishing point and the diagonal vanishing point
It works best when the vanishing points are far apart. Linear perspective has its limitations, so it's best to place the vps far enough until it looks right.
The term "45 degree diagonal vanishing point" refers to the angle of the diagonal lines within the square, rather than the angle at which the perspective line is drawn. This is because in a perfect square viewed straight on, the diagonal line running from one corner to the opposite corner is always at a 45 degree angle. However, in a perspective drawing, the angle of the diagonal lines(blue line at 0:27) may vary depending on the position of the square within the scene.
@@darthfurby I can't say that I completely understand what you mean as of yet, but perhaps you or someone else will be gracious enough to help me get it... The way I see it, it seems like if the Blue Line is Meant to be at a 45 degree angle, it should intersect both Corners (Top Left and Bottom Right) of the Front Facing Square if viewing the Square Straight On or Not... Correct me if I'm wrong though...
@@theapexpredator157 When viewed directly, all corners of a square are 90 degrees, but when viewed in perspective, the angles appear different. The same holds true for a 45 degree diagonal.
@@darthfurby Yes, I get that, but the Blue Line should still be Intersecting at Both Corners of the Square otherwise it could appear as though it is Intersecting an Orthogonal Line, like is the case at 27 seconds. Hopefully that makes what I'm seeing more clear...
@@theapexpredator157 For the front facing square you would be correct. The blue line is for the bottom of the cube with the square lying flat on the ground, not the front facing square. The point where the blue line intersects the orthogonal for the center vanishing point determines the back corner of that square, and where the blue line intersects the horizon line is the 45 degree diagonal vanishing point for squares lying flat on the ground in this specific 1 point perspective scene(the blue line is itself an orthogonal line leading to the 45 degree diagonal vanishing point instead of the center vanishing point).
I'm confused. If the DVP is at any distance how does it maintain a 45% angle to create a perfect cube. Wouldn't the distance change the angle
Hi pcstew3! Excellent question, and sophisticated observation! The distance between the DVP and vanishing point sets the focal length or lens used in our "camera" for a one point perspective scene. Think of it like a photographer switching between lenses from wide angle to normal to a long lens to take pics of a perfect cube: i.imgur.com/ed6tvUY.gif
Hope that makes sense!
@@darthfurby It still doesn't because the example you are showing are boxes in 2 point, not 1 point as the video shows.
@@sktchwlkr5369 changing the distance between the 45 degree dvp and the vp changes the focal length in 1 point as well.
this was a very useful video
Thanks! Who knew cubes could be so perspectacular? :D
Awesome work and explanation! Thank you!
I'm gonna have to download this video and play it in slow motion. Sorry, I don't mean any disrespect. It's a lot to learn. This is exactly what I've been looking for. Thank you so much. YOU ROCK!!!
Thanks so much Anonymous Jedi!! I apologize for the speed, I was trying to save people's time, but maybe it's too fast, lol
And YOU ROCK!! It's always great to see someone determined to learn perspective!!
How to draw a perfect cube is an interesting quick refreshing perspective study.
Thank you, It was much enjoyed.
Thanks for watching Totally Insane Art!
I'm not sure that I can ask you this but the 45° Diagonal Vanishing Point could be put at ANYWHERE on Horizon Line but the longer distance between DVP and VP the more perfect the square is, am I right?
The cube will look distorted when the vanishing points are too close due to the limitations of linear perspective. Curvilinear perspective is a more accurate representation of how the human eye perceives depth. The distance between the DVP and vanishing point sets the focal length or lens used in our "camera" for a one point perspective scene. Think of it like a photographer switching between lenses from wide angle to normal to a long lens to take pics of a perfect cube: i.imgur.com/ed6tvUY.gif
@@darthfurby thank you so much for your explanation, really appreciated your video
Amazing! Only channel that explains why. It helped a lot!
Thanks for the comment Rafael! I'm so glad it helped!
good god ty for explaining why
Anytime! The video would have been 30 seconds long without the explanation, lol.
hi, I tried your method but I realized that the closer I put the diagonal vanishing point to the vanishing point, the narrower and longer the cube became, so I'm wondering if there is a limit for the distance between the cube and the horizon line, and the vanishing point and the diagonal vanishing point
It works best when the vanishing points are far apart. Linear perspective has its limitations, so it's best to place the vps far enough until it looks right.
@@darthfurby I must admit, this is a very vague answer and isn't all that helpful
I'm paused at 0:27
Does the Blue Line have to be at a 45 Degree Angle relative to the Horizon Line?
The term "45 degree diagonal vanishing point" refers to the angle of the diagonal lines within the square, rather than the angle at which the perspective line is drawn. This is because in a perfect square viewed straight on, the diagonal line running from one corner to the opposite corner is always at a 45 degree angle. However, in a perspective drawing, the angle of the diagonal lines(blue line at 0:27) may vary depending on the position of the square within the scene.
@@darthfurby I can't say that I completely understand what you mean as of yet, but perhaps you or someone else will be gracious enough to help me get it...
The way I see it, it seems like if the Blue Line is Meant to be at a 45 degree angle, it should intersect both Corners (Top Left and Bottom Right) of the Front Facing Square if viewing the Square Straight On or Not... Correct me if I'm wrong though...
@@theapexpredator157 When viewed directly, all corners of a square are 90 degrees, but when viewed in perspective, the angles appear different. The same holds true for a 45 degree diagonal.
@@darthfurby Yes, I get that, but the Blue Line should still be Intersecting at Both Corners of the Square otherwise it could appear as though it is Intersecting an Orthogonal Line, like is the case at 27 seconds. Hopefully that makes what I'm seeing more clear...
@@theapexpredator157 For the front facing square you would be correct. The blue line is for the bottom of the cube with the square lying flat on the ground, not the front facing square. The point where the blue line intersects the orthogonal for the center vanishing point determines the back corner of that square, and where the blue line intersects the horizon line is the 45 degree diagonal vanishing point for squares lying flat on the ground in this specific 1 point perspective scene(the blue line is itself an orthogonal line leading to the 45 degree diagonal vanishing point instead of the center vanishing point).
You explain this really well with all variables there! Really awesome job!
Thanks so much for nice comments Chris!