Four Ways to Share Data Between Nodes

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Erich_L

I've been teaching my buddy Godot and figuring out this part made a night and day difference for him. So... being nice and all I made him a video. If you're a beginner (personally am probably only intermediate) maybe this will help you!

cybereality

Awesome video, and very educational. I think this is probably the part that confuses the most people.

Erich_L

@cybereality thanks m8 I've gotta do good deeds to build up karma, with enough I'll bet the godot engine will be able to support more 3d rigid bodies for my game lolo

Calinou

with enough I'll bet the godot engine will be able to support more 3d rigid bodies for my game lolo

If you need to simulate more RigidBodies at a given time, look into reducing physics FPS in the project settings then using lawnjelly's smoothing-addon for physics interpolation.

Erich_L

@Calinou thank you so much for the tip. I have to ask tho, would that decrease physics accuracy noticeably if some of the collision shapes are too small? Like would I expect to see more physics creep? (I think that's when objects creep into eachother) I felt really sad the other day watching this and seeing how many more objects unity could handle. At most I thought it'd be 15% more efficient, not 300%.

Calinou

@Erich_L said: @Calinou thank you so much for the tip. I have to ask tho, would that decrease physics accuracy noticeably if some of the collision shapes are too small? Like would I expect to see more physics creep? (I think that's when objects creep into eachother)

Increasing physics FPS will actually improve physics accuracy and reduce visible wobbliness when RigidBodies are stacked on top of each other. This is because physics iterations are performed more often, which means that each object moves a smaller distance between each step. This also reduces the risk of fast objects tunneling through thin surfaces.

@Erich_L said: I felt really sad the other day watching this and seeing how many more objects unity could handle. At most I thought it'd be 15% more efficient, not 300%.

Godot 4.0 will improve physics performance significantly. It may not get to Unity's level exactly in that particular benchmark, but it should get closer. Still, remember that we don't design Godot to win benchmarks, but to solve real world use cases :)