1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Two Factor Authentication is now available on BeyondUnreal Forums. To configure it, visit your Profile and look for the "Two Step Verification" option on the left side. We can send codes via email (may be slower) or you can set up any TOTP Authenticator app on your phone (Authy, Google Authenticator, etc) to deliver codes. It is highly recommended that you configure this to keep your account safe.

Anyone know how to create this brush?

Discussion in 'Mapping' started by KuroiTenshi, Jul 6, 2001.

  1. KuroiTenshi

    KuroiTenshi Ach, ye gibbun.

    Joined:
    Feb 16, 2001
    Messages:
    142
    Likes Received:
    0
    [​IMG]


    posted 07-06-2001 09:27 AM
    --------------------------------------------------------------------------------


    'Nuff said. Right now, the only way I can think of is to:

    1)Go into 2D editor
    2)Create a circle
    3)Turn it into a revolved brush of about 300 degrees.
    4)Manually vertex-editing it so it looks like a steaming pile of sh** and then putting an axe through my monitor.

    I would LOVE to hear some better solutions.

    On a sort-of related note, someone told me you could move more than one vertex at a time. I'd like to know how this is accomplished.

    Cheers

    PS: Just in case: it's a spiraling doughnut.
     
    Last edited: Jul 6, 2001
  2. combitz

    combitz Common sense is not that common

    Joined:
    May 1, 2000
    Messages:
    485
    Likes Received:
    0
    KuroiTenshi if i had a pic it would help


    :D
     
  3. KuroiTenshi

    KuroiTenshi Ach, ye gibbun.

    Joined:
    Feb 16, 2001
    Messages:
    142
    Likes Received:
    0
    Aaarghh!

    For some reason, Tripod has decided to stop letting me link pictures like that. I guess I have to find some new free webspace.

    Anway, the pic is only about 7k, so I'm sure you people won't mind looking at it here: http://kuroitenshi.tripod.com/spiralpic
     
  4. ZodiaK

    ZodiaK irresponsible walrus

    Joined:
    Feb 14, 2000
    Messages:
    910
    Likes Received:
    0
    i'm only got this when i tried the link...

    "This file is hosted by Tripod, a Lycos®Network Site, and is not available for download. Please check out Tripod's Help system for more information about Remote Loading and our Remote Loading policy. "

    :(
     
  5. KuroiTenshi

    KuroiTenshi Ach, ye gibbun.

    Joined:
    Feb 16, 2001
    Messages:
    142
    Likes Received:
    0
    It's ok, I fixed the pic. Feel free to, um, look at it.
     
  6. Techno JF

    Techno JF He Who Has Powerful Words

    Joined:
    Apr 8, 2001
    Messages:
    961
    Likes Received:
    0
    I really think that the easiest way to do it is to write a brush builder for it in UScript. It would probably have variables in common with both the Spiral Staircase builder and the custom-made Toroid builder.

    If I knew more about writing script for Brush Builders, I would use the following variables:

    is it a clockwise spiral or is it counterclockwise (yours is clockwise),
    how many sides the tube has (does it look like an octagon from the inside, for example),
    the tube inner radius (spaghetti thickness or plumbing pipe thickness, e.g.),
    the number of segments in the whole shape (like asking how many times it's wound around the middle),
    the number of segments per 360 degrees (like the number for revolving the brush in the 2ds editor)
    the distance from the central axis that a segment is located (i.e. how tightly wound around the middle is it?),
    how steep the spiral is per 360 degrees (i.e. if it were a spring, how much would it be stretched)

    I guess I'm just rambling now. Is Tarquin around? He could probably answer this question easier than I just tried to.
     
  7. _Zd_3s_

    _Zd_3s_ Regristered User

    Joined:
    Mar 12, 2001
    Messages:
    4,276
    Likes Received:
    0
    I think Tarquin's tools would come in handy here. :)
     
  8. OshadowO

    OshadowO Irregular

    Joined:
    Feb 10, 2000
    Messages:
    4,774
    Likes Received:
    0
    yeah tarquins tools like 3s said. It has a torus builder.
     
  9. Techno JF

    Techno JF He Who Has Powerful Words

    Joined:
    Apr 8, 2001
    Messages:
    961
    Likes Received:
    0
    Yeah, I was wondering if the Torus builder was authored by Tarquin. Of course if the 2ds editor had a spiral revolution process, it would be no problem to create such a shape. Oh well, I guess the people at Epic couldn't think of everything.
     
  10. Slick_Willy

    Slick_Willy Anyone Else Want Some?

    Joined:
    May 19, 2000
    Messages:
    590
    Likes Received:
    0
    You can make this easy by revolving a crosssection in the 2d editor I guess 180 degrees and then vertex editing each crosssection as a whole to move it up or down.
     
  11. DrWinky

    DrWinky i didnt do evil school to be called Mr

    Joined:
    Jun 20, 2001
    Messages:
    296
    Likes Received:
    0
    i know!

    Hi all,

    I think i know how.

    Use the 2D editor, as yoiu have stated, create the circle, and rotate 359 degrees (or something) Then select the vertexes by holding ctrl + alt (drag a box) or just ctrl (click each vertex) Then drag each section vertically upwards by however many units required. It may not produce the desired effect, but you can do it 180, ten copy, and rotate it, so you have a 360 spiral. If you wanted. If this is a really poor description, email me, and i will try to make one for you.

    Cheers

    DrWinky
     
  12. tarquin

    tarquin design is flawed

    Joined:
    Oct 11, 2000
    Messages:
    3,944
    Likes Received:
    0
    Um. Hi guys :)
    the picture took ages to load, I thought you had a screenie of a brush you'd seen in someone's level until I saw it.

    I'm afraid that the suggested way using the 2D editor and then vertex-editing the height will make the polys non-planar. It's quite hard to see, and I'll upload a scan of the scribble I just did if you like :)
    it's basically for the same reason that the Spiral stairs 'sloped' option has a surface made from triangles rather than quadrilateral polys -- because of the curvature of the shape, the inner and outer track have different gradients.

    I'd do it like this with the Extruder tool, but only if I was determined:

    set the PresetShape to a circle, & set that to however many sides you want.

    make the path into an arc in the XY plane -- there's a special command to do that so you dont have to type in lots of decimals, but that itself is far from user-friendly... the documentation on my site explains how to do it though.

    pressing build now will make a partial torus.
    now go to the pathpoints array and type in some values for the z-ccoordinate, increasing linearly if you want the helix to be regular, or something else if you want something else ;)

    I don't currently have access to UEd (see sig) so I'm afraid I can't test-drive this for myself :(
    If you have trouble getting to grips with the MakeArc command post here & I'll work it out....
     
  13. purice

    purice coon dog

    Joined:
    Dec 19, 1999
    Messages:
    1,297
    Likes Received:
    0
    if you have 3ds there's a spring builder you can use. if you don't, someone could make one for you and you could resize it in ued.
     
  14. KuroiTenshi

    KuroiTenshi Ach, ye gibbun.

    Joined:
    Feb 16, 2001
    Messages:
    142
    Likes Received:
    0
    Oooh, I finally got it using the torus builder (thanks tarquin).


    What you do is, you create a torus, but make it only have, say, 7 of 8 sides. So you get a torus that has a section missing.

    Then, you use the vertex editing tool to highlight all the verteces in except in one section, and move them up by say, 32 units. Then highlight all verteces except in the first two sections and raise by 32. Then highlight all but the first three and raise by 32, you get the idea. Then you can just rotate the large segment you have to get an infindefinitely long spring.

    The 2D shape thing wouldn't work since it's almost impossible to get a PERFECT circle, and if the shape ain't perfect, you get BSP problems.

    This takes a lot of time and patience, but the result looks excellent, and, can you believe it, not a single BSP hole when I rebuild!!!! Tarquin, I bow before you.
     

Share This Page