Turn your pixel image into a 3d multimesh!
Use a blank white (or any color) image, trace some path with another color on the image, and import that image into the project (need to import in a special way, see script) Attach the script PixelImageToMultimesh to a MultiMeshInstance3D, create a mesh, choose the color you want the mesh to appear on, click on "Regenerate Blueprint" in the inspector, and you got yourself several quickly-placed meshes! (This is just a generic step-by-step, there is a more detailed one in the aforementioned script) There are a lot of variables you can change in the inspector like positioning, scaling, rotation, and even add collision!
This can be used to prototype levels for a game without needing to place the assets manually, or even going into the editor really. I used it to spawn tons of trees and shrubs on the ground as well as generate walls for a level for this example
Here's an introduction video that shows some of the various functionality of the script.
introduction-small.mp4
If you are interested in collisions, here is another video to show how you can do that.
collisions.mp4
Took inspiration from a similar tool I saw online but couldn't find it anymore. Feel free to use this code as I won't be making any changes to it. (Note: There is a ton of unnecessary stuff in the project, I didn't bother to clean it up.)