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I would like to make an animation of some yellow sticky notes (on a table) slightly moving in the wind. I already tried the cloth and soft body physics, but neither provide me the desired affect.

An attached to a table sticky note is elastic in the up/down movement but is rather hard in left/right movements. Also an attached sticker can hardly be folded by the wind or become wrinkles.

Could you please point me to the right direction of animating this?

In particular:

  • Which physic body to use (soft, cloth, any other)
  • What kind of wind or other force field to use (strong/light)
  • Should the sticker be a simple plane a very thin mash with the volume >0
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  • $\begingroup$ sorry can't understand what is an "attached to a table sticker" and how it should behave... any reference? $\endgroup$ – m.ardito Oct 2 '17 at 11:08
  • $\begingroup$ You just put a small yellow sticker on the table and it sticks with its top sticky part. The remaining part elevates slightly above the table. Did you get the idea? $\endgroup$ – Boris Brodski Oct 2 '17 at 11:22
  • $\begingroup$ I think he is describing a Postit Note. $\endgroup$ – Dontwalk Oct 2 '17 at 11:27
  • $\begingroup$ A post it note? can you elaborate on result you gained from soft body / cloth and what was wrong with them. $\endgroup$ – batFINGER Oct 2 '17 at 11:27
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Final:

postit

Scene setup:

scene

Plane (table).

This is just simple Plane with added Collision (default setup). It should be a little bit below sticky note.

Sticky note.

Another Plane, Subdivided with Weight Paint and Cloth physics.

  • Weight Paint - Red color is 'sticky' part, green is still little stiff and blue for full influence. You can paint it differently if you want.

  • Cloth physics - main goal here was to make it light and stiff.

    cloth

    • Quality - 20, for better overall animation and smoothness,
    • Mass - 0.1, Wind and Gravity influence,
    • Structural, Bending, Spring - 400, 500, 50, all for getting rid of small wrinkles,
    • Air - 4, it will slightly increase air resistance and smooth wind influence,
    • Pinning - Group, most important thing here, this one will take Weight Paint as stiffness map,
    • Cloth Collision > Quality - 4, for better collision with table.
  • Force Field > Turbulence - this one could be Wind or probably something else. Adjust Strength, Noise as you like, but keep Size at 10. You can animate position of it and also Strength and Noise. Additionally you can add more of them with different settings.

    force

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I would try to use a setup like this: I'm not so satisfied with the "sticker" deform but... at least I hope it will give you some inspiration...

I created an initally deformed "sticker" (I used a curve deform to set the shape slightly lifted)

enter image description here

Then I've set a wind force field acting on the "cloth sticker", using a sticky vertex group to make that part to "stick" to the base.

Other key settings here are a leser "velocity" and gravity deactivation...

enter image description here

here is my test file

btw, there's a hidden copy of the sticker with default cloth settings, for comparison

edit: due to animated gif begging :D I add here an animated comparison although the nearest "postit" has a really subtle movement, respect to the other (the hidden one I was referring above) that has default cloth settings... for this reason I added the .blend where it is easier to see the movement, and tinker with settings...

enter image description here

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  • $\begingroup$ ... begs for an animated gif 8^) $\endgroup$ – batFINGER Oct 2 '17 at 12:32
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    $\begingroup$ @batFINGER stop begging! I've added it :D $\endgroup$ – m.ardito Oct 2 '17 at 12:49
  • $\begingroup$ stiffer springs? oh and this is begging $\endgroup$ – batFINGER Oct 3 '17 at 7:52

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