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I have a flag I want to waft in the wind. I imported the shape as an SVG from Adobe Illustrator.

I converted the mesh to a curve. It wouldn't let me make some subdivisons but it still seems to work with the cloth property.

Flag set up

When I press play, you can see the structure of the flag stops. How can I make those last 3 points intact? Also the fill colour seems to have disappeared, do you know why and how I can bring it back?

Floppy flag

Thanks

Steve

File here: https://www.dropbox.com/s/mb8jsdnjm9f1enc/flag.blend?dl=0

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  • $\begingroup$ could you share your .blend file please? $\endgroup$
    – kanuki
    Commented Oct 9, 2018 at 14:29
  • $\begingroup$ @kranukit just updated the questions with a link - thanks! $\endgroup$
    – Steve Davies
    Commented Oct 9, 2018 at 14:35

1 Answer 1

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Such simple shape should be modeled directly in Blender, I see no need to import an SVG. Resulting bezier curve objects have poor topology with uneven density, unsuited for most tasks like simulations.

I'd model it manually with an even quad based topology, create a Vertex Group for the side closest to the post, then use a Subdivision surface Modifier before the Cloth simulation.

Topology

Use the Pinning option for the above Vertex Group and add the force field.

Flag Animation

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  • $\begingroup$ Thanks - A great help! Going to try to learn the first bit! $\endgroup$
    – Steve Davies
    Commented Oct 10, 2018 at 8:03
  • $\begingroup$ Hi @Duarte, apologies I am having trouble creating 'an even quad based topology'. I can create a curve, but it is too rigid which is why I think I understand the 'even quad based topology. Can you direct me to where I can make that model? $\endgroup$
    – Steve Davies
    Commented Oct 10, 2018 at 15:32
  • $\begingroup$ It is just a simple plane subdivided. The first screenshot shows the base mesh $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented Oct 10, 2018 at 15:59
  • $\begingroup$ Thanks for your help with this, have made some progress! $\endgroup$
    – Steve Davies
    Commented Oct 15, 2018 at 15:48
  • $\begingroup$ Hi @Duarte Farrajota Ramos, I have tried to render this but having issues, and is very distorted. Here is a gif! i.sstatic.net/8m3FC.gif - I have been told to swap the order of the modifiers around but that gives me different results $\endgroup$
    – Steve Davies
    Commented Oct 16, 2018 at 16:29

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