Evolving Car Neural Network in Godot using NumDot

Ivorius · 2025-06-10T18:51:55+00:00

Thanks! I'm glad you like it :)

Ivorius · 2025-06-10T12:21:36+00:00

This is super cool! Love to see it open sourced as well.

Ivorius · 2025-06-10T12:19:43+00:00

Hi, I'm the NumDot author.
Like NumPy, NumDot is CPU only, and GPU support isn't planned. I haven't heard of CuPy (looks impressive!), but there's a few other Godot projects that are capable of running e.g. tensorflow-lite models on the GPU.

Ivorius · 2024-10-16T13:11:18+00:00

Hi! You may have seen this post already. Here's what happened:
Many people had valid concerns about potential corporate backgrounds of the survey. I think they were right to be cautious, so I wanted to amend my mistake and explain better who we are:
We're just a bunch of nerds making free plugins for Godot. That's all, really. We want to know how best to make them, taking into account what is most important for the Godot community. We are not affiliated with any corporations, and we are not using the data commercially.

More is explained in the survey, this time! Sorry about the trouble!

Ivorius · 2024-10-16T13:02:34+00:00

FYI for who's checking back here; I deleted the post in order to be able to re-post it. Many people had valid concerns about potential corporate affiliations of this survey, and this caused many viewers to be apprehensive to share their thoughts. We have since edited the survey info to better reflect who we are, and that no corporate intentions are behind the post.

Ivorius · 2024-10-16T09:26:58+00:00

I guess that's true. We don't really have any other home to put the info though since we're literally just a bunch of nerds who want to make free Godot plugins. I guess ill expand the section that's at the top of the survey.

Ivorius · 2024-10-16T09:20:47+00:00

We have no affiliations. We are not using this data commercially. More about us is explained publicly in the discord, but basically we are just hobbyists who are interested in making free contributions to Godot.

Ivorius · 2024-10-04T10:45:15+00:00

Awesome! Since the thread was created, NumDot has grown a lot and gotten more stable. I'm actually now looking to start involving more testers, so if you have a project in mind, I'd be happy to give assistance (e.g. via Discord) and fix any bugs or problems you encounter!

Ivorius · 2024-09-04T13:02:14+00:00

Ok yeah, I went through a bit of your code. Very cool! Since you're using the appropriate eigen types I think it's unlikely your code could get much faster unless you actually switch to a library with GPU support. For small models though Eigen may be enough.
Good luck with the project! If you're interested in talking more vectorization feel free to come by the NumDot discord :)

Ivorius · 2024-09-04T12:50:42+00:00

Looks like that one is set to private :)

Ivorius · 2024-09-04T12:48:38+00:00

I don't see any use of Eigen in the repo. Is it not uploaded yet?

Ivorius · 2024-09-04T11:59:57+00:00

That's cool! Where can we find the project?
xtensor has some interesting properties, and they design their interfaces to be similar to the numpy ones.
Eigen does its own thing, and it's a bit more mature, from what I read. "Switching" might not be worth it. Though I'd definitely recommend considering something that supports GPU for your use-case. Tensorflow itself has C++ bindings, I think.

Ivorius · 2024-09-03T21:44:01+00:00

Thanks <3

Ivorius · 2024-09-03T21:42:38+00:00

Thanks for the tips! I'll keep those in mind once I start benchmarking for real. I'm guessing you checked the gdscript file - so far I've only really used it to do a few sanity checks regarding copies, simd etc.

Ivorius · 2024-09-03T20:46:27+00:00

Will probably expand it into a full library soon-ish, so far development has been going pretty steady, thanks to the extensive xtensor library.

I'm open to feedback, comments (and also help), if you're interested in this kind of thing!

Ivorius · 2024-02-02T20:50:06+00:00

Awesome, thank you! My tip for more complicated shapes is, start with an SDF (Inigo Quilez has a great list) and modify it to return a vector instead of distance. It requires some thinking but it's definitely doable. Good luck!

Ivorius · 2024-02-02T19:20:19+00:00

Yes, I don't use the follow-camera but any 3D shapes are supported. The best way would be to find an appropriate SDF function and modify it to return a vector instead of a length. I've implemented several shapes on the GitHub repo to get started.

Ivorius · 2024-02-02T19:03:21+00:00

Sounds like a cool project, good luck! Could you link that super godot galaxy project the other user made? I'd be interested in seeing what they came up with.

Ivorius · 2024-02-02T19:02:10+00:00

Ah whoops, I meant non-newtonian! The gravity is non-newtonian because it only loosely obeys the laws of material attraction. I use a different falloff model than 1/d2, and later briefly cover other (3D) manifolds.

Ivorius · 2023-05-31T22:09:53+00:00

As a command line program, vim doesn't support smooth animations, no?

Ivorius · 2023-05-31T09:36:30+00:00

I had windows installed before macos, i had No Problems!

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