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I have a mesh of a football field that I want to render so that it seems to be drawn onto another plane in an animation. The basic idea, in the end, is that I want to make an animation that shows a football field being created on a barren piece of land, but I first want to figure out how to do this first step of drawing the lines.

Here's my mesh:football field

I'd like for it to either start smack in the middle or on one of the corners, from nothing to the mesh here.

Thanks in advance.

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1 Answer 1

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You can use animate the size of another object (e.g. the radius of a cylinder) using keyframes, and then apply a boolean intersect modifier to your mesh.

enter image description here

Step by step

  1. Create a cylinder with the middle in the point where you want the "drawing" to start. Make sure that it's thick enough to cover all the mesh on the Z direction

    enter image description here enter image description here

  2. Scale it down on the X and Y directions hitting S then Shift+Z

    enter image description here

  3. Set a keyframe to the current size using I > Scaling. Then move to the end frame, scale it up (again only along X-Y with S and Shift+Z), and set another keyframe (I > Scaling).

    enter image description here

  4. Optionally, you can avoid the visualization of a solid cylinder by setting its maximum draw type to wire

    enter image description here

  5. Last, select your mesh and add a Boolean modifier, using the Intersect method and your cylinder as the reference object

    enter image description here

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  • $\begingroup$ Ah, thank you, that's very helpful! I think I understand. $\endgroup$ Aug 4, 2017 at 8:21
  • $\begingroup$ I've added a step-by-step tutorial. Hope it helps. $\endgroup$
    – Nicola Sap
    Aug 4, 2017 at 8:32

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