9
votes
Accepted
The Last Supper - Vanishing Points
The arch is not a painted part of the painting, but a physical part of the room in the Santa Maria delle Grazie above which the mural can be found:
source
- 11.5k
9
votes
Accepted
Why are parallel lines in the real world not drawn parallel as they head to the vanishing point?
I will preface my response with a cautionary warning that I am an engineer by profession, so I am somewhat naturally inclined to use optics/physics and math to illustrate my point. Hopefully I'm ...
- 651
5
votes
Determining a station point for a perspective drawing
The station point is the distance at which you are looking at an object, (i.e. how far you are from it).
The horizon line is where your eyes are, (i.e. if are you looking the object from below, above ...
- 51
5
votes
How to measure the distance to horizon line one-point perspective?
In the following explanation I had to make some assumptions:
Room is 10 x 10 x 10
I had to assume a distance (station point) for the observer a fixed distance from the object. Need to know how far ...
- 2,966
4
votes
Are there any techniques established for doing perspective on a spherical surface?
The vanishing point, provided the parallel lines are on the ground plane, is on the horizon and it will always be eye-level . The horizon can be looked at as the sum of all of the vanishing points. ...
- 3,974
3
votes
Accepted
What does it mean when vanishing points of a box is not on the horizon level?
Does it mean that the top plane of the box is tilted in some weird way?
Not in some weird way, just that the box is indeed tilted relative to an imaginary horizon (or the horizon is tilted relative ...
- 11.5k
3
votes
Accepted
Problem with the size of the Cone of Vision in relation to the Station Point and the Picture Plane
It seems that you are reversing what drives the size of the cone of vision. That cone is determined by your station point (SP), ie where your eye is and the field of view (FOV) you have chosen for ...
- 3,974
3
votes
Accepted
Is it possible to paint an oblique (perspective) anamorphic illusion on a three dimensional surface viewable from all angles as you pass it?
You could make it work from a single vantage point, but not from numerous or continuously changing vantage points.
Whatever shape sticks out from the wall (semicylinder or other), I'll call that the ...
- 11.5k
3
votes
Accepted
Wish to paint dog in scenic background. What size should dog be?
I don't know any formal artistic composition rules but how I would handle it is by mocking it up with either Adobe Photoshop or Gimp Photo Editing Software. (Gimp is free). Put the background in one ...
- 3,235
2
votes
Are there any techniques established for doing perspective on a spherical surface?
I will go ahead and not provide a final answer to your question; I just take it ahead a bit, so that others will have a clearer image of what you are asking, and maybe then they can help out with the ...
- 262
2
votes
Accepted
Printing to be viewed at 45deg
Your model is quite clear, although the question is less so. You ask if increasing the height of the image in the background to 200% is the best way.
The best way for what purpose?
If your objective ...
- 7,679
2
votes
Does anybody know the name of the perspective most people paint in?
There are, arguably, three distinct viewpoints in linear perspective, all having to do with the viewing angle in relation to the ground plane:
J.T. Thibault, "Application of Linear Perspective in the ...
- 11.5k
2
votes
Does anybody know the name of the perspective most people paint in?
You are assuming that most paintings use this certain perspective, which is not the case. A subset of paintings do and those are landscape paintings which all of your examples consist of. This style ...
- 3,974
2
votes
What is distortion?
The distortion discussed in the Drawbox article are related to using a two point perspective in a manner that makes the object in the drawing look distorted.
Wikipedia has a nice article on the ...
- 446
1
vote
Linear Perspective: Vanishing Point Below Horizon Line
The vanishing point will be on the eye level along with the horizon line for lines that are parallel to the ground plane. If an object has lines that are not parallel to that plane they will converge ...
- 3,974
1
vote
Is there a known method to track perspective without guidelines, other than experience?
You could use thread and nail.
You should loose fix the thread on the horizon and with the help of nail to move across the surface to check the perspective.
- 11
1
vote
Is there a known method to track perspective without guidelines, other than experience?
There is a wonderful(ly inventive) tool called a centrolinead, which I still hope to get my hands on one day:
source
It consists of a metal joint from which three wooden, rotatable arms extend. You ...
- 11.5k
1
vote
Cone of vision in perspective drawing
I am no expert, but a simple Google search gave me a very clear answer. The cone of vision is the spatial volume seen by a (dimensionless) observer inside an angle of 60o.
To "calculate" the envelope ...
- 1,911
1
vote
Printing to be viewed at 45deg
This is an old question and kind of a unique situation. But if anyone else wanted to try this, the existing discussion doesn't really address what's required. This is a perspective problem.
Your ...
- 11.5k
1
vote
Determining a station point for a perspective drawing
Answer In the simple case you mention (objects laying on the line of vision) the vertical distance of the station point to the ground line of an object (laying on the ground) is the distance of the ...
- 111
Only top scored, non community-wiki answers of a minimum length are eligible