🤔 How to figure out tilt of a cube?
1mo
Tom
Ok. Let me share with you my recent artwork. An amazing experience that has come from studying a Chinese cultural and their approach to life through observing a nature that resulted in many of theirs tools.
One of them is their astrology- worth to study! Extremely interesting topic and study case! That can be useful in our lives. Well that is topic not for now-
what I have done, was turning this study Into an artwork.and where I started to sense problems, was- when I supposed to tilt a perfect cube in perspective that I made. Well! Not the difficult first part: one vanishing point stays the same. In this case- on demonstration below- what I mean.
Other sets of lines going to an opposite side on the horizon line is also not difficult to determine- just very simple- how much I want to have a new cube tilted. No problem.
But! What is going to happen with last set of lines? Those who are going down? Is it 45 degree? 52 degree? Where is that vp? In relationship to the rest of the vanishing points?
You may say- use 3d program. Yeah, sure! But for know- I want to understand. Is there any measuring method that can be applied? Thank you very much.
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1mo
Are you looking to animate rotating a cube?
I'm not 100% confident, but when you first set your station point, where the observer's eyes are, you would have to decide where that point is. It's always on a vertical line down from the horizon line between the vanishing point. If you connect the station point to the vanishing point, there's an angle. A common one is 60 degrees. And then when you rotate the cube, the new horizon line starts tilting, and your new observation point would go with it, keeping the same relationship to the vanishing points.
Hope that makes sense.
It is kind of temptation, you know… just to start up blender, and you have it accurate and fast!
So yeah! Why to spend whole morning? Days? And trying to figure it out, while we have no time already?!😲🤔
I wanted to know.
I wanted to understand.
So I took all what I knew and all your feedbacks I have got and together with a third- and maybe the most Important ingredient-
-patient- left to an another adventure!
To solve this business of a tilted perfect cube, drawn traditionally and free hand!
Let me share with you my notes from this adventure
and the same drawing, I made earlier in blender- but now- free hand👍🥳
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1mo
This is a really cool idea! You can use ellipses to rotate this cube. If you can draw an ellipse and a cylinder in perspective, you can rotate any cube any how because the corners will always rotate along the ellipse. Lines of the cube will never enter the boundaries of the inner circle. This links to the ellipses/cylinders video for a refresh: https://www.proko.com/course-lesson/how-to-draw-cylinders-and-ellipses/comments
This drawing is made based on blender construction. 100% accurate and it took just a 4' 😮😲 which is great. But! It have not brought me more insight, yet!
The goal here, is to be able to do it without it!
And That’ s the whole point. It is a great tool. But I want to first understand. I am going to use this as a further study object.
And to find out, how to be able construct it as same accurate.
