bevy VS piston

Most of Nanite (at least, everything but the LOD system, I haven't tried that part, and the compute rasterizer due to lack of storage image atomics because Metal lacks them...) is implementable in WebGPU actually.

I have a PR that does a lot of the same things (meshlets, visbuffer, material depth, two pass occlusion culling) open for Bevy https://github.com/bevyengine/bevy/pull/10164 that I've been working on, which uses WebGPU.

WebGPU is actually a pretty good API imo. It's missing some advanced features like raytracing, mesh shaders, and subgroup operations (coming soon!), but it can still do a lot.

The much bigger missing feature is "bindless" support (non-uniform arrays of bound resources). BindGroup overhead (and ergonomics) is a significant downside.

ECS architectures are used in a number of young open source game engines, such as Bevy[1]. I haven't done game development for a long time, but hearing about an architecture that does away with the heavy and complex OOP you often see in games makes me want to dip my toes in again and check it out.

[1]: https://bevyengine.org/

https://github.com/bevyengine/bevy/blob/main/examples/shader...

Yup! The Bevy Editor is our current highest priority. The first step is building out a new Scene / UI system that will serve as the foundation for the editor (as the Bevy Editor will be built as a Bevy App).

I have a post about this (with working prototypes) here: https://github.com/bevyengine/bevy/discussions/9538

This is something that can certainly happen. In fact, this is exactly what happened with the Bevy engine, in which a total of 246 contributors agreed to relicense the engine, as explained in this blog post. However, in this case it was done for the good of the engine and its users.

If you are using Rust, you should check out https://bevyengine.org which is a rust based game engine with a focus on ECS

I was crowing to my game dev buddy about how he (a Unity C-sharp developer) ought to check out Bevy and Rust because the Rust type system is friggin’ awesome!

Code examples: https://bevyengine.org/learn/book/getting-started/ecs/

License is Apache 2.0 OR MIT:

https://github.com/bevyengine/bevy/blob/main/LICENSE-APACHE

https://github.com/bevyengine/bevy/blob/main/LICENSE-MIT

For those who are more code centric and like rust, https://bevyengine.org/ is a good alternative to godot as far as open source goes.

Well, it depends on how you use it; writing to an image buffer isn't much less efficient than writing to any normal buffer (in fact, although displaying your scene to a window efficiently is important, your main bottleneck will be the actual ray tracing loop). You may want to read this article for a practical example of using an ImageBuffer to create and draw a texture with Piston. Other window backends you could use, apart from pixels which was already mentioned in another comment, include minifb and Mini GL, though I haven't personally used them.

And I really like generic systems where you can create a lot of different things. A program that interested me is Piston (https://github.com/PistonDevelopers/piston), I haven't researched it in depth yet, but the concept of being able to create several things with a base and different modules is very interesting

Try Piston

Check out their homepage, https://piston.rs, they even show off some great examples of how their library has been used!

So, I made a Tweet not too long before I made this post, and it was me showing off my first OpenGL project using Piston. And I attached two images.

Before I could implement the display output, I needed something to draw the images onto. There are quite a few Rust crates available to create a GUI window and update it with 2D graphics. Most of these are of course intended for making games, and also include ways of getting key presses as input, which I'll also need. I looked at Piston, which I've used before on other projects, Macroquad, which also supports web assembly as well as desktop targets, Pixels, which is intended specifically for 2D games, and Minifb, which is also specifically for 2D applications, but is much simpler. I also tried out libretro, which is specifically made for video game emulation, but I found it much more restrictive than the others because of it's narrow focus.

Depends on my goals. I year ago I wanted to learn rust, so I used piston for a gamejam. (There are several rust engines including bevy, piston, amethyst. They probably vary in quality, features, and constraints.) Piston was a terrible experience because compilation is slow even on that tiny project.

Piston