Page 2 of 5 FirstFirst 1 2 3 4 5 LastLast
Results 16 to 30 of 65
  1. #16
    Join Date
    Nov 2009
    Posts
    58
    Thanks
    4
    Thanked 19 Times in 12 Posts
    http://www.handprint.com/HP/WCL/pers...#measurepoints
    Also, about Anid's diagram... all parallel lines on the same plane will converge on the same horizon line. The diagonals of the squares and their sides are on the same plane, meaning that this "3rd vanishing point" must be on same horizon as the other two...


  2. Hide this ad by registering as a member
  3. #17
    Join Date
    Nov 2007
    Posts
    2,004
    Thanks
    891
    Thanked 1,009 Times in 538 Posts

  4. #18
    Join Date
    Dec 2006
    Posts
    1,378
    Thanks
    669
    Thanked 538 Times in 296 Posts
    Deleted my posts on account I don't want incorrect information sticking around.

    I 'squared' away, so to speak, my earlier mistake but I'm not going to bother any farther, as evidently squares in perspective are some arcane secret to only be answered with "read the fucking manual" and "Look up your own tutorial, don't bother me".

    Not that it's everyone's attitude, but it seems to be the prevailing one.

    So sorry Daafone, I guess go read a book or figure it out or something.
    -My work can be found at my local directory thread.

  5. The Following 2 Users Say Thank You to Anid Maro For This Useful Post:


  6. #19
    Join Date
    Apr 2012
    Posts
    17
    Thanks
    3
    Thanked 0 Times in 0 Posts
    @Anid Maro: thanks for your help

  7. #20
    Join Date
    Jun 2006
    Location
    Torrance, CA
    Posts
    6,797
    Thanks
    2,276
    Thanked 4,262 Times in 2,074 Posts
    I don't think it should be "Go read a damn book"

    I think the problem is possibly a person should read it first, and what can't be explained should be asked. I've seen threads ask about perspective after the person has read a book and gained better understanding.

    A good amount of the information is from people repeating what they've learned from a book combined with personal experience.

    Also Perspective Made Easy is a very CHEAP book

  8. #21
    Join Date
    Jun 2007
    Location
    Toronto, Ontario
    Posts
    3,047
    Thanks
    251
    Thanked 1,117 Times in 882 Posts
    Quote Originally Posted by Arshes Nei View Post
    I don't think it should be "Go read a damn book"
    I never said that, I wrote 'RTFM'...

  9. #22
    Join Date
    Apr 2012
    Posts
    17
    Thanks
    3
    Thanked 0 Times in 0 Posts
    Arshes, I'm trying to figure this out since months, do you really think I didn't read anything about perspective? My difficoult is due to terms as english isn't my main language.

  10. #23
    Join Date
    Jun 2006
    Location
    Torrance, CA
    Posts
    6,797
    Thanks
    2,276
    Thanked 4,262 Times in 2,074 Posts
    Quote Originally Posted by daafone View Post
    Arshes, I'm trying to figure this out since months, do you really think I didn't read anything about perspective? My difficoult is due to terms as english isn't my main language.
    English being a second language is understandable, but reading may not be comprehending.

    When you want a "perfect square" do you understand it's relevant in terms of perspective?

    And really, I've been figuring out perspective for years, and I know people still trying to figure it out even as professionals.

  11. #24
    Join Date
    Jun 2007
    Location
    Toronto, Ontario
    Posts
    3,047
    Thanks
    251
    Thanked 1,117 Times in 882 Posts
    Quote Originally Posted by kev ferrara View Post
    Daafone, artistic perspective is not science. Its just a cheesy quick fix to get some stuff in certain locations on your picture to look correct. As soon as you begin to rely on it, it will make your picture awkward looking. You must keep correcting it by eye.
    I agree here. However, if things are taught, then I prefer a correct approach. Personally, I like to include a perfect square in my perspective construction, it helps me to measure things up. I know about measuring points, up to 3-point perspective, and admit I never use them...

    In my first year in art school, I almost wetted myself when a teacher showed us how to construct a square in perspective, using a bisection of an angle, which does not work, and gives verifiably bad results. On my request for proof or reference, he told me that this is so simple that a proof is not needed, the old Greeks already did it this way. Last time I checked, the school still teaches it this way. I don't mind if things are kept simple, I do revolt when people teach crap.

  12. #25
    Join Date
    Apr 2012
    Posts
    17
    Thanks
    3
    Thanked 0 Times in 0 Posts
    eezacque: I agree with you, I can also show several books (and internet tutorials) where a "perfect" square is explained using several and crap methods. And yes, squares are good in order to misure a figure (aspect ratio)
    When you draw a square you can draw it in several ways but how do you know if it is a perfect square in that perspective?
    Oh, perspective is *science*, think about how computers softwares implement that, I read these books too and I didn't find any solution to this question.

  13. #26
    Join Date
    Jan 2010
    Posts
    4,631
    Thanks
    2,518
    Thanked 2,591 Times in 1,616 Posts
    Quote Originally Posted by Anid Maro View Post
    I 'squared' away, so to speak, my earlier mistake but I'm not going to bother any farther, as evidently squares in perspective are some arcane secret to only be answered with "read the fucking manual" and "Look up your own tutorial, don't bother me".

    Not that it's everyone's attitude, but it seems to be the prevailing one.

    So sorry Daafone, I guess go read a book or figure it out or something.
    The prevailing attitude of "RTFM" is mostly because the explanation is 1) lengthy and 2) requires illustrations, and it's understandable that most people won't bother to spend 2 hours writing and illustrating something that can be found out from books.

    And I think that going to read a book is a good idea for you. Your deleted advice wasn't quite right.

    That said... it is a bit of "arcane" knowledge, for some reason. Most books on perspective either omit it, don't mention that the method can be used to build a square of specific size, or make it very challenging to understand.

    I built this demo rather quickly from memory, so double-checks are welcome. I think I did it correctly, but it's rather late in the night, and if I botched it, I'm sorry. It's a modified "architect's method" - real architects start with an elevation plan, and we start from the perspective, so we have to build the elevation plan in correct relationship to the perspective first. Once you pinpoint the elevation plan size and position, then it's the regular trick of diagonals used to locate an unknown point from two known ones.

    You can extend this method to all sorts of precise measurements in perspective.

  14. The Following 9 Users Say Thank You to arenhaus For This Useful Post:


  15. #27
    Join Date
    Jan 2010
    Posts
    4,631
    Thanks
    2,518
    Thanked 2,591 Times in 1,616 Posts
    Quote Originally Posted by kev ferrara View Post
    Daafone, artistic perspective is not science. Its just a cheesy quick fix to get some stuff in certain locations on your picture to look correct. As soon as you begin to rely on it, it will make your picture awkward looking. You must keep correcting it by eye.
    It's very much a science, Kev. If you "fake it" and eyeball everything, it does not mean that there is no method to do it precisely.

  16. #28
    Join Date
    Apr 2012
    Posts
    17
    Thanks
    3
    Thanked 0 Times in 0 Posts
    arenhaus: I love your method, I was trying to do the same. I'll try it ASAP!

  17. #29
    Join Date
    Apr 2009
    Location
    Northern California
    Posts
    5,234
    Thanks
    3,512
    Thanked 4,921 Times in 2,548 Posts
    Quote Originally Posted by Anid Maro View Post
    Deleted my posts on account I don't want incorrect information sticking around.

    I 'squared' away, so to speak, my earlier mistake but I'm not going to bother any farther, as evidently squares in perspective are some arcane secret to only be answered with "read the fucking manual" and "Look up your own tutorial, don't bother me".

    Not that it's everyone's attitude, but it seems to be the prevailing one.

    So sorry Daafone, I guess go read a book or figure it out or something.
    Gimme a fucking break Anid. If you need someone to show you how to read a book you're lost from the start.

    And I'm sorry, "read a book or figure it out or something" is exactly right.

    Perspective is well understood and has been for 600 years. There's mountains of material written on it. Some makes sense to some people, some makes sense to others...the individual needs to care enough, and be curious enough about it to not have someone walk them through their obtuse little micro-question.

    Edit: BTW, never, in my wildest dreams would I have whined about this kind of thing and kept pestering people about it. I would have read the fucking manual and gone and figured it out. I'm guessing any other professional artist on here did the same.
    What would Caravaggio do?
    _________________________

    Portfolio
    Plein Air
    Digital
    Still Life
    Sight Measuring
    Fundamentals

  18. #30
    Join Date
    Apr 2012
    Posts
    17
    Thanks
    3
    Thanked 0 Times in 0 Posts
    Can we please talk only about my question? This thread may be useful in future to others, so why do we have to flame?

Page 2 of 5 FirstFirst 1 2 3 4 5 LastLast

Similar Threads

  1. Vanishing points?
    By metalhead3 in forum Art Discussions
    Replies: 2
    Last Post: July 1st, 2011, 07:02 PM
  2. Vanishing Points
    By Jie Kageshinzo in forum Photoshop
    Replies: 10
    Last Post: March 29th, 2011, 03:30 AM
  3. Is there a system to do perspective without vanishing points
    By The Blue Pill in forum Art Discussions
    Replies: 11
    Last Post: September 3rd, 2010, 01:33 PM
  4. Replies: 4
    Last Post: October 19th, 2009, 04:16 AM
  5. Off-the page Vanishing Points in Photoshop
    By jfrancis in forum ART TUTORIALS, ART TIPS & ART TRICKS - ARCHIVE
    Replies: 1
    Last Post: July 13th, 2005, 05:21 PM

Members who have read this thread: 0

There are no members to list at the moment.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Developed Actively by the makers of the Best Amazon Podcast