AI4Animation
PhysX
AI4Animation | PhysX | |
---|---|---|
11 | 18 | |
7,282 | 2,296 | |
- | 2.0% | |
5.3 | 4.7 | |
6 months ago | 22 days ago | |
C++ | C++ | |
- | BSD 3-clause "New" or "Revised" License |
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AI4Animation
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[Request] Implementation of DeepPhase: Periodic Autoencoders for Learning Motion Phase Manifolds
Hi all, I've been around this scene since 2014 and we've seen some incredible mods over the years. If anyone is familiar with the AI scene recently, you may have came across a paper called DeepPhase which allows for fully procedural, unique animations in realtime. It's a long shot, but is anyone here familiar with the animation pipeline for Skyrim - and whether it would be even feasible to implement this paper into the game? This is just theorycrafting or spitballing an idea, but I'd love to have a discussion here!
- AI4Animation: Deep Learning for Character Control
- IDEA/Suggestion: Module for 3D agnostic movement? Seems like something interesting to be incorporated into the 3D modules available
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Nvidia PhysX 5.0 is now open source
character motion being the same old animations, just done/interpolated better
the only advancement I know of which got close to be implemented in games is https://github.com/sebastianstarke/AI4Animation (I think Sebastian worked with EA or some other big company at some point) - still haven't played anything using this though
- Ubisoft inspired "Motion matching"
- Ai animation in UE5?
- I'm Addicted to Assets
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Motion Matching help
Here's the paper for one of them: Phase Function Neural Networks. In the paper you can also find names of other algorithms and look up their associated papers. The reason I single out this one is because the author also uploaded their original Unity implementation.
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I know it ain't much compared to the rest of the work on this page, but I'm honestly proud of the little bit I've gotten done. I learned how to use Unity's animation system in about 30 mins last night. I love how easy it is to use! Just working on finding some survival/rpg animations now :)
(bonus: here's an excellent and comprehensive gdc talk from ubisoft going over their tech and how it helped them address the insane complexity in their assassin's creed games. second bonus: the guys that did that basketball demo in the 2 minute papers video have their work in a github repo, if you're feeling spry)
- AI4Animation: Deep Learning, Character Animation, Control
PhysX
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Blaze: A High Performance C++ Math library
For typical game physics engines... not that much. Math libraries like Eigen or Blaze use lots of template metaprogramming techniques under the hood that can help when you're doing large batched matrix multiplications (since it can remove temporary allocations at compile-time and can also fuse operations efficiently, as well as applying various SIMD optimizations), but it doesn't really help when you need lots of small operations (with mat3 / mat4 / vec3 / quat / etc.). Typical game physics engines tend to use iterative algorithms for their solvers (Gauss-Seidel, PBD, etc...) instead of batched "matrix"-oriented ones, so you'll get less benefits out of Eigen / Blaze compared to what you typically see in deep learning / scientific computing workloads.
The codebases I've seen in many game physics engines seem to all roll their own math libraries for these stuff, or even just use SIMD (SSE / AVX) intrinsics directly. Examples: PhysX (https://github.com/NVIDIA-Omniverse/PhysX), Box2D (https://github.com/erincatto/box2d), Bullet (https://github.com/bulletphysics/bullet3)...
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Rust Game Physics Engines: PhysX, Rapier, XPBD & Others
NVIDIA PhysX GitHub repo: NVIDIA-Omniverse/PhysX
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Recommended Physics Engine?
I don’t know of any books but here is the official documentation which includes an API reference. You can also find a lot of sample code snippets and examples on their GitHub.
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C# Game engine - suggestions
On the other hand, PhysX is available under the MIT License and is both heavily used in games and also well documented with tons of sample code.
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AMD Finally Opens Up Its Radeon Raytracing Analyzer "RRA" Source Code
The CPU implementation of PhysX is too, no reason you couldn't port that to run on AMD GPUs: https://github.com/NVIDIA-Omniverse/PhysX
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Nvidia PhysX 5.0 is now open source
The LICENSE.md file on the repo doesn't mention BSD-3-Clause at all, it's just a copywrite notice that reads more like CC-BY than a software license. That's why I said it was weird.
Very! I just picked a random file: https://github.com/NVIDIA-Omniverse/PhysX/blob/release/104.0/physx/source/physx/src/NpArticulationJointReducedCoordinate.cpp
- GitHub - NVIDIA-Omniverse/PhysX: NVIDIA PhysX SDK - 5.0
What are some alternatives?
deep-motion-editing - An end-to-end library for editing and rendering motion of 3D characters with deep learning [SIGGRAPH 2020]
RayTracingDenoiser - NVIDIA Ray Tracing Denoiser
mediapipe - Cross-platform, customizable ML solutions for live and streaming media.
physx-rs - 🎳 Rust binding for NVIDIA PhysX 🦀
Unity-Robotics-Hub - Central repository for tools, tutorials, resources, and documentation for robotics simulation in Unity.
PhysX - NVIDIA PhysX SDK
unity-atoms - ⚛️ Tiny modular pieces utilizing the power of Scriptable Objects
JoltPhysics - A multi core friendly rigid body physics and collision detection library, written in C++, suitable for games and VR applications.
SplineMesh - A Unity plugin to create curved content in real-time with bézier curves
box2d-lite - A small 2D physics engine
awesome-ai - Awesome list for all things AI, ML and deep learning
Bullet - Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.