Perspective Drawing 9 - Rotating Objects in Perspective (Part 1) 

same

but remember that the horizon line doesn't have to be horizontal nor is always in the middle... just for those who dont know

@@frictionparticulus3583 can it be vertical?

@@sreeragb8865 Horizon....tal.

@@BrgArt nice.

@@sreeragb8865 Yes it can. just rotate the cubes vertically instead of horizontally and it's VPs will be on the vertical instead of the horizontal.

Thanks Joe

It not a big secret you have to understand how to see 3d object as plane first if you want to start getting good at it.It not simple because you have to pick a basic form to encapsulate your form which you will extrapolate from. Basically think of the basic shape could be a box a sphere or a pyramid now think of yourself as being a sculptor that basic shape is now made of solid clay. Now visualize that clay as if was transparent.You can now try to imagine each plane of that basic shape.Let make a example of a simple visualization you can do try to visualize inside your head.Remember the house you would draw as a kid? The basic shape was a cube.Now drop a pyramid on top of it.Now subtract a square window from the side of the cube clay and also a rectangle for the door.Voila you just visualize a simple house.Now what is the hard part is to try to rotate that picture inside your head.Good exercise of visualization include meditation,3d modelling or even better animating and taking a time lapse of an object rotating on itself. The key is to be able to simplify complex object and encapsulate them in the most basic shape possible than add and subtract from that imaginary clay construct.

Just know it's formulaic and easy to do if you can develop the intuition. You just need to draw many cubes and things using these rules and they will stick in your head

Thanks David👍

@@adnanshafaq Vanishing Points

this is only true if the object is being rotated horizontally. Check out this video, it really helped me understand what the horizon line / eye level actually is: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qxIcdrE9Vr8.html

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RsbzCHLsQuQ.html I think this is the one you need

The vanishing points have to be 90 degrees from each other always, and to rotate it you put a other set of 90 degree angles on the HL and make sure it’s within the cone of vision so it won’t be distorted. Remember the further you are from the HL the more Objects you see, the closer you are to it there’s gonna be more distortion. Check out Scott Robertson’s book and Joseph d’emilios perspective book! Hopefully this makes sense lmao.

You can't by eye.

Did you ever find the answer to this? I can't find a good source of truth on this, everywhere I look they just skate over this step.

It depends on the angle and view you want to create (how you want to see the object you are drawing) there’s no set distance, it’s up to you to decide how you want the drawing to look. I might do a video going over this

I am replying to a year old comment in case there is someone still wondering if there is a more concrete way to do this. There is a concrete way to do this, you use what's called a station point. You can draw a vertical line perpendicular to the horizon called a *median line*. Where this line intersects the *horizon line* is called the *centre of vision* (C.V in most perspective texts) it is the vanishing point in one point perspective. measuring from the horizon line, you mark of a point on the median line who distance from the horizon line is equal to your *viewing distance* and this is your all important *station point*. From the *station point* you can measure true angles in 'plan view'. What you do is from your station point is you draw two *visual rays* parallel to the sides of your rotated cube and where these visual rays intersect the horizon line will give your left and right vanishing point of your rotated. What the video is showing here is just eyeballing and if you want to understand this properly than don't do this. The station point is also useful for finding the diagonal vanishing point in one point perspective, you use this in drawing cubes in one-point perspective so that the are actually 'square'. If you google the words I have put in bold hopefully you will land on some resources that begin to explain this better.

how to draw by scott robertson womaannnn

Oop nvm you mentioned in 6:57 that what I said above is true! nvm haha

I think it has it's own (invisible) horizon line

if you look at the flat view you can see that it’s half way at that division, I just used that to estimate the point in perspective

Is there an accurate way to do this? Does it depend on the angle of view you’re trying to achieve?

@@MechaUsagi there is a very accurate way it is called mathematical perspective, I havent seen any videos talking about it, maybe there are some book, I learn it from college

@@MechaUsagi there is a very accurate way it is called mathematical perspective, I havent seen any videos talking about it, maybe there are some book, I learn it from college

Perspective make easy it's one of his books

It still should stick to the horizon line

you're true that an ellipse in perspective CAN BE an ellipse itself but it's always easier to think of that ellipse's ellipse in perspective as a circle in perspective, i don't know if that made sense but yeah

pls let me know when you find someone who explains this

ikr, like he ignored all the rotation he talked about, I guess that technique is useful when you want to "move" and object and keep it fixed in place