I have icospheres instanced on a sphere in the first screenshot and I want the icospheres to vary in size like the spheres in the second screenshot. How do I do that?
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Here is an easy way. You could put a Scales instances in front of the Instances on point and connect a Random Value + Vector Math (in multiply) and add those to the scale
Here is an example: https://vimeo.com/653258060 AT minute 1:47
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$\begingroup$ @vklidu yeah, but it was in case the OP needed the original scale for something else $\endgroup$– EmirJan 10 at 14:47
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$\begingroup$ If your answer should stand on its own and not rely on an external tutorial (as it would be preferred on this site), then your setup does not help at all. It's not adding anything to the original scale, it replaces it. And since the Vector Math node just multiplies all random values with 0, resulting in setting all scales to 0 and thus making all instances disappear (as it does in the tutorial as well by the way, only after changing the multiplier to values different from 0 it starts to work), this answer is no solution. $\endgroup$ Mar 14 at 13:04
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$\begingroup$ @GordonBrinkmann the video is just an example, you could delete the link and the image is still showing the way, if the answer does not work for you, you could downvote it without any problem. $\endgroup$– EmirMar 14 at 22:36
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$\begingroup$ Explain to me how multiplying everything by 0 gets you random sized spheres. And that's all your answer shows. $\endgroup$ Mar 14 at 22:48
Random Valuenode together withInstance on Points, ...I am still looking for the appropriate duplicate. But as @vklidu said correctly:Random Valuewill help you here. $\endgroup$