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Thread: Tutorial: the 3 cylinders trick (for smoother curved shapes)

  1. #1
    Member
    Registered: Jan 2001
    Location: Formby, NW England

    Tutorial: the 3 cylinders trick (for smoother curved shapes)

    I thought I'd write this tutorial so that people can know about smooth curves and then resist the urge to use them:
    http://dromed.whoopdedo.org/dromed/three_cylinders

    Do you like it?

  2. #2
    Member
    Registered: Aug 2007
    Location: LosAngeles: Between Amusements
    You may want to incorporate some of the variants. Ref. http://www.ttlg.com/forums/showthread.php?t=115994, specifically,

    Quote Originally Posted by LarryG View Post
    OK. Here is my trick for an 18-sided oval pillar of water using three new brushes only:

    1. Change the air brush for the room the pillar is to be in to be a solid brush. (!!)
    2. Create a 9-sided fill air cylinder.
    3. Clone and rotate the cylinder 180 degrees and change it to flood.
    4. Clone the solid brush that is the room and change it to solid-air.


    Done in that order you get the perfect oval of water.
    and

    Quote Originally Posted by qolelis View Post
    ...

    Generalized 3-cylinder trick:
    How to create a terrain volume of type X inside a terrain volume of type Y (X in Y):
    1. Y → Z
    2. Z → X (rotated)
    3. Z → Y (cloned)


    X ≠ Y ≠ Z ≠ X
    water → air = evaporate
    air → water = flood

    The 3-cylinder trick is, by the way, a special case of mopgoblin's method (the "3k-cylinder trick").

  3. #3
    Member
    Registered: Jul 2009
    Location: South Dakota, USA
    And I have not gotten this:



    On the contrary, in my experience, the pointed ends of an 10-sided cylinder are exactly equal to the diameter set, while the flat ends are less than that.


  4. #4
    Member
    Registered: Jan 2001
    Location: Formby, NW England
    My image is of a cylinder aligned by sides, yours is aligned by vertices.

  5. #5
    Member
    Registered: Oct 2008
    Location: Finland
    i have dug many graves for myself with this trick

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