lean4-raytracer
A simple raytracer written in Lean 4 (by kmill)
three-mesh-bvh
A BVH implementation to speed up raycasting and enable spatial queries against three.js meshes. (by gkjohnson)
| lean4-raytracer | three-mesh-bvh | |
|---|---|---|
| 2 | 5 | |
| 114 | 2,289 | |
| - | - | |
| 3.5 | 9.5 | |
| 6 months ago | 11 days ago | |
| Lean | JavaScript | |
| Apache License 2.0 | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
lean4-raytracer
Posts with mentions or reviews of lean4-raytracer.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-05-29.
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Functional Programming in Lean – a book on using Lean 4 to write programs
Lean is currently moving to the 4th iteration which is the first intended to be a general-purpose programming language. It "is currently being released as milestone releases towards a first stable release". For now the main goal is to port mathlib to the new version, and then they will concentrate on the compiler. So it is not production ready. But that doesn't mean it is not suitable for building any programs now. There is a simple raytracer written in Lean [1]. I have built a chip8 interpreter with it and the only problem was the lack of an ecosystem, meaning I had to build the necessary libraries myself.
Now it has a RC GC and boxes everything >= 64 bits, and as the compiler isn't polished it is probably significantly slower. In the referenced raytracer repo you can find rendering time compared to the C implementation (Lean is 25x slower, but that was a year ago).
[1] https://github.com/kmill/lean4-raytracer
- A simple ray tracer in Lean 4
three-mesh-bvh
Posts with mentions or reviews of three-mesh-bvh.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-11.
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Procedural CAD Modelling tools for WebGL
the default one ( with the sop/boolean node ) uses https://github.com/gkjohnson/three-mesh-bvh, which is very stable already.
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Checking a mesh is inside another mesh
Have you tried using https://github.com/gkjohnson/three-mesh-bvh ? That may give you some easier collision detection tools.
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Super Soldier Battle Game - Three.js - AWS Serverless
The game is currently unplayable for me (10fps) and I can run Witcher 3, so I definitely should be able to run this. You need to do some heavy optimizations. Looking at the console, while there is a high amount of time spent on rendering, over half the frame is spent on raycasting. You have to either reduce the amount of raycasters in your game, reduce the number of objects raycast against, divide meshes into smaller chunks (default raycast loops through entire geometry, so highpoly large meshes are really bad for you) and/or use BVH to speed up raycasting https://github.com/gkjohnson/three-mesh-bvh
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FPS-style controls with a large GLB model loaded
There is a different raycast method, not too hard to implement and that probably will run a lot better https://github.com/gkjohnson/three-mesh-bvh
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Raycaster is lagging/superslow on mouse move event
or trying https://github.com/gkjohnson/three-mesh-bvh