I have Question. I want to draw a circles and elipses from life but I don't know how does it work with perspectiv, I mean such Objects like Plate ,Wheels, that are far from me or seen from above or from the side , they're rotated (at an angle) and not exactly horizontaly to me. When will be used one point or two point perspectiv? How can I measure Angle and find a vanishing points ?
Great question. It is absolutely possible, but you need first to draw the box inside which your object with ellipses is inscribed or embedded. From there, having the right orientation, you construct rectangles inside which ellipses are fitted. Note that you can, in real life while drawing by observation, find the horizon line (exactly at your eyes level), you can even measure the distance between some objecrts in your still life and the horizon line, like you normally do (using a pencil and your thumb using the projection plane technique for example). You can also find the vanishing points, they could be either your internal ones, which means 1 point perspective, or the vanishing points of the still life, which would then be 2 points perspective if you are stationned at an angle with respect to your viewpoint in the scene (i.e. objects in the scene are rotated). If you are looking up or down at your scene, you have technically introduced the third vanishing point, either the Zenith if you look up, or the Nadir if you look down, but usuallly, we ignore it when drawing by observation. If objects are rotated and inclined, it's more difficult, as some dimensions of inclined planes vanish towards vanishing points too, but those are somewhere on verticals that pass through the scene's main vanishing points on the horizon line. I teach that at my Fine-Arts academy, but it's really hard to explain it in text. In essence, figure out the box inside which your vase/bottle/cylindrical object is inscribed, draw it as accurately as possible and then you can much more easily draw all the ellipses that are part of said object because you can draw, everywhere needed, a rectangle that will contain an ellipse. Hope it helps, I will one day create tutorials on drawing by observation combined with analytical understanding, but they are hard to do and would probably need a more complex setup (3 or 4 cameras) and some assitance :) Oh, and time :). But it's in the back burner.
@KarimAktouf Thanks. So by measuring the distance from the horizon line to the object, I can also determine its angle of inclination? Is there a rule when the circle (ellipse) has one point or two points or 3 points perspective? How do I recognize that? I understand that a point perspective is only used when the object is directly opposite me and not when, for example, a plate or is far away to the right (is it then more distorted or is the furthest line from the circle horizontal to the horizon?), that's my problem when I turn to the object then it appears to have one point perspective but when I turn to my image plane then the object appears to have two point perspective. And to create a rectangle I have to draw imaginary lines from four sides of the circle towards the horizon line?
@@ukaszsokoowski1658 It is really hard to explain by text and it is more complex than it seems. 1 Point perspective is when the objects in the scene correspond to your own internal world, determined by your projection plane, which is parallel to the plane of your eyes, right in front of you. The horizon line is always the eye level of the observer, i.e. you. 2 points perspective is when you rotate or when the object in the scene rotate. 3 Points perspective is when you start looking up or down. 4+ points is curvilinear. Inclined planes are planes that are no longer parallel to the ground.
@@KarimAktouf So I've heard different Opinion namely such as Circle or Oval has any Vanishingpoints when then only in one pointperspective. But my Question is how to construct such Shapes they we see without helpful and so essential rectangles in which is a circle inscribed . Especially if I want to draw in real life. Do you think is it right what someone else says on the subject ?
@@ukaszsokoowski1658 I'm not sure I understand your question or the expressed opinion on the subject. When drawing by observation, usually fine-arts artists do not construct, but they often struggle unless they have a lot of experience. Ellipses are always inscribed inside rectangles which can be in 1, 2, 3 points perspective.
Oui, ce sont seulement les ellipses les plus proches de l'observateur/trice qu'on construit avec précision. Aussi, à force d'en faire avec précision, notre cerveau intègre de plus en plus de quoi a l'air une ellipse bien construite en perspective. Un indicateur qui peut t'aider: l'axe mineur de l'ellipse en 2D est toujours exactement l'axe de symétrie du cylindre de cette ellipse. En conséquence, l'ellipse en 2D, divisée par son axe mineur, doit être parfaitement symétrique.
Hi, automatic AI captioning is enabled. Tun on captioning by clicking on the CC button, then in settings (wheel cog), under "subtitles/cc >", choose "Auto Translate" and choose English,.
Je viens de faire la première ellipse dont je suis un peu fier grâce à ce tuto, merci !
Chouette! Oui il y a de quoi être fier quand on réussi une belle ellipse en perspective!
Merciii pour votre super vidéo synthétique et parfaite pour comprendre
Merci infiniment! D'autres vidéos s'en viennent!
Excellent ! merci !!!
Plaisir!!
🙏🏾
Thanks!
I have Question. I want to draw a circles and elipses from life but I don't know how does it work with perspectiv, I mean such Objects like Plate ,Wheels, that are far from me or seen from above or from the side , they're rotated (at an angle) and not exactly horizontaly to me. When will be used one point or two point perspectiv? How can I measure Angle and find a vanishing points ?
Great question. It is absolutely possible, but you need first to draw the box inside which your object with ellipses is inscribed or embedded. From there, having the right orientation, you construct rectangles inside which ellipses are fitted. Note that you can, in real life while drawing by observation, find the horizon line (exactly at your eyes level), you can even measure the distance between some objecrts in your still life and the horizon line, like you normally do (using a pencil and your thumb using the projection plane technique for example). You can also find the vanishing points, they could be either your internal ones, which means 1 point perspective, or the vanishing points of the still life, which would then be 2 points perspective if you are stationned at an angle with respect to your viewpoint in the scene (i.e. objects in the scene are rotated). If you are looking up or down at your scene, you have technically introduced the third vanishing point, either the Zenith if you look up, or the Nadir if you look down, but usuallly, we ignore it when drawing by observation. If objects are rotated and inclined, it's more difficult, as some dimensions of inclined planes vanish towards vanishing points too, but those are somewhere on verticals that pass through the scene's main vanishing points on the horizon line.
I teach that at my Fine-Arts academy, but it's really hard to explain it in text. In essence, figure out the box inside which your vase/bottle/cylindrical object is inscribed, draw it as accurately as possible and then you can much more easily draw all the ellipses that are part of said object because you can draw, everywhere needed, a rectangle that will contain an ellipse.
Hope it helps,
I will one day create tutorials on drawing by observation combined with analytical understanding, but they are hard to do and would probably need a more complex setup (3 or 4 cameras) and some assitance :) Oh, and time :). But it's in the back burner.
@KarimAktouf Thanks. So by measuring the distance from the horizon line to the object, I can also determine its angle of inclination? Is there a rule when the circle (ellipse) has one point or two points or 3 points perspective? How do I recognize that? I understand that a point perspective is only used when the object is directly opposite me and not when, for example, a plate or is far away to the right (is it then more distorted or is the furthest line from the circle horizontal to the horizon?), that's my problem when I turn to the object then it appears to have one point perspective but when I turn to my image plane then the object appears to have two point perspective. And to create a rectangle I have to draw imaginary lines from four sides of the circle towards the horizon line?
@@ukaszsokoowski1658 It is really hard to explain by text and it is more complex than it seems. 1 Point perspective is when the objects in the scene correspond to your own internal world, determined by your projection plane, which is parallel to the plane of your eyes, right in front of you. The horizon line is always the eye level of the observer, i.e. you. 2 points perspective is when you rotate or when the object in the scene rotate. 3 Points perspective is when you start looking up or down. 4+ points is curvilinear. Inclined planes are planes that are no longer parallel to the ground.
@@KarimAktouf So I've heard different Opinion namely such as Circle or Oval has any Vanishingpoints when then only in one pointperspective. But my Question is how to construct such Shapes they we see without helpful and so essential rectangles in which is a circle inscribed . Especially if I want to draw in real life. Do you think is it right what someone else says on the subject ?
@@ukaszsokoowski1658 I'm not sure I understand your question or the expressed opinion on the subject. When drawing by observation, usually fine-arts artists do not construct, but they often struggle unless they have a lot of experience. Ellipses are always inscribed inside rectangles which can be in 1, 2, 3 points perspective.
31-12-2022 Bonjour L'art du dessin la vidéo est bonne et intéressante à regarder merci à vous .
Et Bonne Année 2023 .
Merci, bonne année à vous également !
@@KarimAktouf Bonne année à vous.
Hé mais attend. C'est de l'harmonic armature ça. Haha, ça aussi je l'ai révolutionné avec mon théorème
Bravo
bon je crois que je vais la tracer a la main finalement😁
Oui, ce sont seulement les ellipses les plus proches de l'observateur/trice qu'on construit avec précision. Aussi, à force d'en faire avec précision, notre cerveau intègre de plus en plus de quoi a l'air une ellipse bien construite en perspective. Un indicateur qui peut t'aider: l'axe mineur de l'ellipse en 2D est toujours exactement l'axe de symétrie du cylindre de cette ellipse. En conséquence, l'ellipse en 2D, divisée par son axe mineur, doit être parfaitement symétrique.
Would love English subtitles
Hi, automatic AI captioning is enabled. Tun on captioning by clicking on the CC button, then in settings (wheel cog), under "subtitles/cc >", choose "Auto Translate" and choose English,.
Thank you so much
Happy to help :)