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I want to draw two perfect circles on a sphere that would function as the sphere's eyes.

When I go to to the Texture Paint and try to draw two circles they are hardly perfect: enter image description here

How can I draw two perfect circles in Texture Paint?

Is there an option to choose a geometrical shape and just adjust its size instead of drawing it from scratch?

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3 Answers 3

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It doesn't seem that there is any inner tool to easily draw a circle or a square in Texture Paint mode, that said you can use the trick explained here by Nwytg:

  • Choose Stroke Method > Anchored:

enter image description here

  • Create this kind of Falloff that will make the circle empty:

enter image description here

Left click at the center of the circle and drag:

enter image description here

Or keep the same Falloff but choose Stroke Method > Dots, press F to set the circle radius, and left click to create the circle:

enter image description here

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    $\begingroup$ Interesting use of the custom brush falloff. Smart ! $\endgroup$
    – Gorgious
    Commented Mar 31, 2023 at 13:59
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You could make the brush very large and sharp to match the outer diameter of the eye and then erase or paint with base color the inner diameter of the eye.

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If you have an iPhone or iPad you can stroke the circles in Tintaur app with two linked arcs and then export ready-to-use spherical textures. Here's a short video explaining the process.

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  • $\begingroup$ This looks like a smartphone app ad. $\endgroup$ Commented Dec 29, 2023 at 10:19
  • $\begingroup$ I don't think so $\endgroup$
    – Olex
    Commented Dec 30, 2023 at 11:21
  • $\begingroup$ you're wrong then. $\endgroup$ Commented Jan 3 at 9:45

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