Offer two types of particle dynamics: velocity and acceleration

[QbieShay]

Describe the project you are working on

Various VFX

Describe the problem or limitation you are having in your project

Right now it's complicated to have advanced control over particle's motion, which is good for realistic particles, but not so good for stylized.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Split the dynamic between using forces/accelerations and velocity. Velocity control should add a velocity over life parameter, and things like more precise control of the trajectory (add vortex velocity, etc.)

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

To be defined.

If this enhancement will not be used often, can it be worked around with a few lines of script?

A custom particle material can be done - BUT - it won't be compatible with CPUParticles.

Is there a reason why this should be core and not an add-on in the asset library?

See above.

[QbieShay]

Addressed by godotengine/godot#79527