Error on executing Fluid3d initialization scripts.

[TheAndiKurz]

Describe the bug

After installing:
When attaching the addons/godot-rapier3d/fluid_3d_box.gd script onto a Fluid3D Node and changing the values of the script it should create the meshes in the Editor and they should be seen.

But for I got an error when changing any value of the script.

To Reproduce

Steps to reproduce the behavior:

• Create a Godot Project
• Select Node3D as your scene root
• Install Godot Rapier Physics (fast SIMD) Getting Started
• Create a Fluid3D Node as child of the root Node3D
• Create a FluidRenderer and select Fluid3D
• Drag the script in addons/godot-rapier3d called fluid_3d_box.gd onto the Fluid3D node
• Select the Fluid3D Node
• Change the Value of height, width or depth
  

Expected behavior

When I change any of the values of the script I expect that in the editor multiple spheres show up in a grid that is 10x10x10 (values in the script of Fluid3D).

I expected all the spheres to be normally distributed (same distance between them).

As it also shows the spheres, when creating them directly in the Fluid3D points property.

Environment:

• OS: Linux Ubuntu 24.04.1 LTS
• Version: v0.8.7
• Godot Version: v4.3
• Type: simd 3d single

Example project(zip)

Please attach a zip with project where issue occurs. Remove the addons folder so that the size is less than 25 mb.

rapier-fluid-bug.zip