https://threejs.org/examples/?q=draw#webgl_buffergeometry_drawrange I want it to be round instead of a square but I couldn’t.

Hi! Set vertices inside of a sphere. When a point is further, than the set radius, reflect its velocity vector via a normal, which is simply normalized and negated position of the point (I used .reflect() method of Vector3) Thus, you’ll get something like this: [изображение]

How to make the velocity circle in the drawrange example?

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prisoner849 October 25, 2022, 10:29pm 4

Picture:

Demo: https://codepen.io/prisoner849/full/yLKZdgv

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How to make the velocity circle in the drawrange example?

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