HOME | DD
Reflective-Sentinal — Geometric 3rds
Published: 2011-12-14 01:26:16 +0000 UTC; Views: 474; Favourites: 5; Downloads: 18
Redirect to original
Description
I have found a good way to find thirds in a shapefirst, draw an x from the corners to find the centre, then draw a line from a top corner to bottom centre, where this line crosses the 1st diagonal is a 3rd.
*edit* because this is a geometric method, it works in perspective.
hope this helps somebody
Related content
Comments: 7
no problem, the cool thing is this works in perspective too.
👍: 0 ⏩: 1
So very interesting... however do you find this stuff out if you don't mind me asking? It almost seems like perspective-grids and whatnot are a hobby of yours. At anyrate, this will indeed be useful.
👍: 0 ⏩: 1
Basically I work it out for myself, or put it together from looking at a bunch of different resources. What this process involves is me doing a lot of grids and saying... "damn it that doesn't work... why not ? huh is this why? nope... *sleep* ah that's why!".
I still have not been able to understand how the 3rd vanishing point is located for perspective, and that still really bugs me 
I try to understand how things work in the edge cases, at the very edge of the working theory, because that is how the trick is done. I try to understand what something can do not by what it does, but by what it does not do.
_
for finding geometry, there are 2 basic breakdowns halves and thirds. Halves are easy, thirds are hard.
I decided a while ago that I was interested in finding a way to draw thirds, but did not know a way to find it without guessing. I asked a few people, and they did not know, so I started playing with lines. I have Autocadd LT which is really awesome at doing measurements and angles but is kinda pricy and a bit of a trick to learn.
👍: 0 ⏩: 1
I'll be curious to see to your solution, whenever you find one for the 3rd vanishing point... interesting to know your process at any rate, it's funny how sometimes it's easier to work 'backwards,' as it were.
You've piqued my interest in this subject now... I think I might have to look into it more.
👍: 0 ⏩: 1
Coming back to this old comment because of another commenter
Solved the "how do I find the 3rd vanishing point" question. See youtube link [link]
Not too sure its very worthwhile to actually use, but its nice to have an idea of how to decide where it should go. In short, if stuff is close to the horizon the 3rd vanishing point is close to infinity, if stuff is close to the circle (straight down in other words) than the 3rd vanishing point is close to the circle.
👍: 0 ⏩: 0