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I need to create a concave shape from this painted circle that looks like a saucer.

circle svg

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    $\begingroup$ Hello do you mean that each shape is supposed to be hollow, or to be a hole? $\endgroup$
    – moonboots
    Apr 23 at 12:44
  • $\begingroup$ hello there thank you for ur comment and yes i want it ti be hollow lets say like a dish or a pendent $\endgroup$
    – mirou amir
    Apr 23 at 13:34

3 Answers 3

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Import your image as Image > Reference then convert Trace Image to Grease Pencil (note that the new object will be overlapping the image so you need to move the image to see it):

enter image description here

Now convert this object to bezier curve (again, move the former object in order to see the new):

enter image description here

Convert the bezier object to mesh:

enter image description here

Clean the object (remove the double stroke and the circle):

enter image description here

Create a filled circle object, put it behind the pattern object, switch it to Edit mode, CtrlLMB to select the pattern object and use the Knife Project tool:

enter image description here

Result (X > Delete Faces to get holes):

enter image description here

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  • $\begingroup$ it worked thank you, still have a problem in concave it like a dish or half sphere $\endgroup$
    – mirou amir
    Apr 23 at 14:40
  • $\begingroup$ what do you mean? Please edit your original question and show a screenshot $\endgroup$
    – moonboots
    Apr 23 at 15:00
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To concave a circle SVG file in Blender, you can follow these steps:

  1. Import the SVG file into Blender. This will create a curve object from the SVG data

  2. Convert the curve object to a mesh. This will give you a flat, planar mesh representation of the SVG shape

  3. Apply a Solidify modifier to the mesh to give it some thickness. This will create a 3D object from the 2D mesh

To create a concave shape, you'll need to manually adjust the vertices and faces of the mesh. One way to do this is by selecting the faces you want to make concave and using the Inset Faces tool to push those faces inward.

You may also need to clean up the mesh topology by removing duplicate vertices, dissolving unnecessary edges, and adding more edge loops where needed to avoid distortion

Finally, you can apply a Subdivision Surface modifier to smooth out the mesh and create a more organic, concave shape

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Follow moonboots' instructions to create mesh, turn on proportional editing at the top of the screen, switch the mode to "sphere", select the center vertex or vertices (you may have to subdivide to get more vertices, right click and select subdivide), and drag the vertex/vertices down with the 'G' key to create a concave shape.

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