Recently discussed on the Godot website, several new features have been added to the Godot 4 GPU accelerated particle systems. New features include:
support for sub-emitters
new collision systems
box and sphere colliders
height map colliders for outdoor maps
SDF colliders for internal meshes
new particle attractors
While we are going to have to wait until Godot 4 to get our hands-on the new Godot 4 in a production environment, we can check out the new GPUParticles3D node in action by building from the nightly source. That is exactly what we did in the video below, check it out for a preview and a mini tutorial on using particles in Godot 4.