3d motion

  1. Project Title : 脫 탈, Asian Cross Road
    Movie Length : 16m 31s
    Work Date : Oct. 2011 (4weeks)

    Credit
    Client : 文化中心都市造成委員會
    Agency : D'strict (Seoul, KOR)
    Work Company : Megazone Indigo (Seoul, KOR)
    2D Artist : KukHee Nam, JongSeo Ahn, YoungHoon Paik
    3D Artist : YooHwan Cha, MinKwan Jung, JongSeo Ahn
    Tools : Cinema4d 3Ds Max, After Effects

    # vimeo.com/33896110 Uploaded 607 Plays 0 Comments
  2. Frame dynamics' 2nd work

    Role: Art Direction, Design, Animation, Modelling, Compositing, Sound Design

    Co-worker : Jaehong Park(Yonsei Univ)

    Date: 2011.05.09 ~ 0211.06.06.

    Format: 1920*1080 Full HD

    Sound: Croatian Rhapsody, Betrayal Voices, Batman Begins, Dark knight OST

    Tools: Cinema4d r12, aftereffects, premiere

    CDP is one of major subject of mechanical engineering in Yonsei univ which means Creative Design Project. In this subject, we have to make a product containing power sources like motor, turbine and C-P. And what makes us difficult to complete this subject is because we actually have to register our product as a new Patent. So there are 6 criteria we got to follow; Creativity, Originality, Engineering Merit, Marketability, Aesthetics, Promotion.
    So as to promote our product, FCS-3R, we finally show you the 2nd work of Frame dynamics. We made much more effort to produce this video than the first movie made in last winter. For example, we hired a amateur narrator as a part time job, and we had to borrow a Studio for recording voice with better devices in quiet circumstances. (Thanks to Y.J.Kim for studio rent and to J.H.Kim for narration)
    Finally we completed this video and we actually had a Presentation in front of 5 professors and 120 students and we also had an exhibition.
    Because we did not have enough time to produce, some defects may be seen to you but please take them as cute mistakes and recommend us to fix.

    # vimeo.com/24707348 Uploaded 4,817 Plays 2 Comments
  3. # vimeo.com/18367632 Uploaded 22.7K Plays 28 Comments
  4. @Plz Full screen, Use Headphone!
    @ Maxon today video
    Maxon.net

    Role: Art Direction, Design, Animation, Modelling, Compositing, Sound Design
    Co-worker : Jaehong Park(Yonsei Univ)
    Date: 2010.11.01~12.14
    Format: 1280*720 HD
    Sound: Basique Little People
    Tools: Cinema4d r12, aftereffects, premiere
    Render time : 3 Days
    Copyright 2010
    atenis@nate.com
    blog.naver.com/~atenis
    atenis.cafe24.com

    This time, my friend and I had a chance to do a project about
    mechanism design. In this video, we will show you especially about
    four-bar linkage and gear trains. For instance, riding a bicycle has
    two mechanisms, one for four bar linkage, and the other for gear
    trains. And the watch, for example, is consist of numerous gears.

    Almost everyone takes the watch in daily life, but just a few knows
    about the principle how it works. Synthesis of mechanism is not
    shown in this video, only analysis is presented.

    When we analyze the mechanisms, we used "Graphical analysis method" and "Analytical
    analysis method". Calculating with vector loop equation, and
    reviewing with graphical method.

    Showing how the gears in the watch rotates was really difficult for
    us. We knew the theoretical angular velocity, but C4D was not
    accurate to realize them. Finally, we tried FPS division method and it
    worked,

    On analyzing four-bar linkage with bicycle, we used tracking
    function with AE.
    We hope all of you can be more familiar with mechanism design
    through this movie. Merry christmas and Happy new year.

    Intro Preview
    vimeo.com/17593568

    S1 Preview
    vimeo.com/17593507

    Xpresso Preview
    vimeo.com/17593083

    Additional engineering statement

    Case : the bicycle
    We first thought that analyzing the mechanism of riding a bicycle would be
    really easy because the length of every linkage was determined so we could
    parameterize every four angle, angular velocity and angular acceleration
    with one specific angle. But it was totally a mistake. Finally we divided 2Π
    rad in to 10 sections, which means every 36°, and found values related to the
    angle and interpolated them to make continuous numbers.
    When climbing up the ascent, we assumed the length between the saddle and the
    crank axis varies. We set up the equation (which is used in this movie) of the
    length as "85+5sin(angular velocity of the crank*Π*t)cm" so that the length varies
    from 80cm to 90cm. It was quite reasonable to set up the equation as above
    except for a few errors. For instance, following that equation, the length becomes
    the smallest when the pedal is on the lowest position and largest when on the top,
    but that assumption makes the motion of the bones seem forced or unnatural.
    This equation is to be complemented soon enough. We calculated 7 sorts of
    variables; angular velocity, angular acceleration, velocity, tangential acceleration,
    normal acceleration, relative velocity, relative acceleration; but inserting all of
    those values made the pictures disoriented thus we got rid of every value except
    for angular velocity.

    Case : the watch
    In designing the gears, we did not consider the pitch radius or pressure angle so
    it does not fit to the engineering models. But the angular velocity ratio of each
    gear related to the number of teeth ratio was designed precisely. In engineering
    concept, the gear must have at leat 12 teeth so the second gear, called
    Escapement gear, has 12 teeth in the video which has actually only 6 teeth. And
    we want you to watch very carefully how the minute hand gear affects the hour
    hand gear with converting gear 2, because even concepts of those concentric hand
    gears movement was not easily understood, we costed about 3 days to realize it. In
    this film, we do not present the torque of the gears in the bike or watch. With a
    piece of paper and a pen, most of you can caluculate it with no longer than 10
    minutes.

    # vimeo.com/17770451 Uploaded 26K Plays 15 Comments
  5. Second C4D Study Project

    Client: Self-Initiated
    Art Direction : Lim sumi
    Design : Lim sumi
    Animation : Lim sumi
    Modelling : Lim sumi
    Sound Design : Anjongseo
    Compositing : Anjongseo

    Date: 2010.10.13~11.21
    Format: 1280*720 HD
    Copyright 2010

    # vimeo.com/17031716 Uploaded 2,616 Plays 2 Comments

3d motion

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