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I made double circle at center of red square like a picture below and added Noise Texture Node with Scale Node. After this,Double circle with noise came (-0.5,-0.5). I would understand if it came positive coordinate but it came negative. Why it did not came positive but negative?

enter image description here

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    $\begingroup$ You are using object coordinates. They range from 0 to 1 in each dimension, so the center of a square would be at (.5, .5). The equation of a circle is set to use the origin as its center, so you have to offset it by (.5, .5) to center it at the center of the square. $\endgroup$ Commented Nov 22, 2021 at 23:26
  • $\begingroup$ So the center of a square moved (0,0) to (0.5,0.5) after adding noise tex and it just looked like double circle came to (-0.5,-0.5) due to this? $\endgroup$
    – pana
    Commented Nov 23, 2021 at 0:29
  • $\begingroup$ The noise texture is perturbing the circle by adding random values in the range of 0 to 1, with an average of .5, yes. $\endgroup$ Commented Nov 23, 2021 at 0:32
  • $\begingroup$ I got it! Thank you for answering and taking your time. $\endgroup$
    – pana
    Commented Nov 23, 2021 at 0:45

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