Convert particle system wont work properly : it modifies the geometry I have a problem with the &quot;Convert&quot; button of my particle system : as soon as I click on the Convert button of the particles system modifier, my particles losses a part of their geometry (it is more rounded)
Here is the story (Apologizes if my english is hard to understand, I'm french, baguette) : I'm making asteroids belts.
So, I've created rocks affected by a subdivision modifier and a displace modifier with voronoi texture. Then I've duplicated it and scaled the rocks differently. Then, I've created a collection to put my rocks in.
Then I created a simple torus on which my rocks poped up thanks to a particle system. It is set as this :

I have plenty of particles system as this one, now I need to &quot;bake&quot; this into meshes (1 asteroid belt = 1 mesh).
To do that, here are my steps :

Select Torus 1 (first particle system, first belt)
Hit the Convert button on the Particle system modifier
Object -&gt; Relation -&gt; Make Single User (Object &amp; Data) so that every particle became the single user of its modifiers (the subdivision and displace modifiers inherited from the rocks i've created earlier as a source collection for my particle system)
Object -&gt; Convert to -&gt; Mesh from Curve/Meta/Surf/Text
Ctr-J : Now I have a unique mesh for the first asteroids belt (then I decimate it but anyway)

My problem is : Once I clicked on the convert button of a particle system, every rocks loses a part of its geometry, like if the Voronoi Texture used for the displace modifier losen its effect.


How can I fix that ? I really need a strong texture for my scene.
By the way, the rock texture is just a noise node plugged in a bump node, then in the Normal input of a principled BSDF. So the displace modifier of a rock applies a Voronoi texture on it, then I bump the texture with a noise texture.
When the particles are converted, they aquire their size as particle, so generally much smaller than the original object.
From that, if the displacement is set to &quot;global&quot; coordinates, the mapping of the object on the voronoi texture becomes very small and so has few variations.
As solution, set the displacement to &quot;local&quot; coordinates and the mapping will be equivalent between your original objects and the converted particles.

Alternatively, you can change (lower) the voronoi texture size once the particles are converted.