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I'm doing my first tutorial to learn about blender (the donut) and while adding the sprinkles I wanted to add two types of sprinkles. I added then star shaped sprinkles and everything was good until I saw that some stars are "merging" with the cylindric sprinkles. I tried configuring both objects in one geometry node but I couldn't make appear the two shapes, just stars or cylindric sprinkles. How can I fix the problem?A picture showing how the star is inside the cylindric sprinkle

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  • $\begingroup$ It might be helpful to people trying to help you if you uploaded an example blend file to the site blend-exchange.giantcowfilms.com and add that link in the question. $\endgroup$
    – Rick T
    May 4, 2022 at 3:35
  • $\begingroup$ You can put both sprinkle types (Star and Cylinder) into a collection and bring this into Geometry Nodes. On the Collection Info node, enable Relative and also Separate Children and Reset Children. In the Instance on Points node enable Pick Instance. No need for two different GN nodetrees. $\endgroup$ May 4, 2022 at 9:50

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As Gordon said, puting both types of sprinkles will solve the problem, so that:

Remove one GN modifier, put sprinkles in the new collection:

enter image description here

Drag this collection into geometry nodes and connect it instead of one object:

enter image description here

To make it work, all of 3 checkboxes marked by arrows should be clicked.

Also, to align star, I applied its transform (Ctrl+A →rotation) and rotate it in Edit mode to make it perfectly aligned with the surface of the donut.

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In case you don't want to use collections for your instances, you can just join the geometry of the objects as instances:

Geometry nodes

Result:

two instances on points

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