Bullet
mujoco
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Bullet | mujoco | |
---|---|---|
40 | 20 | |
11,765 | 7,026 | |
1.7% | 3.8% | |
3.4 | 9.8 | |
7 days ago | 3 days ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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.
Bullet
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Does anyone know any good open source project to optimize?
I suspect most C++ physics libraries like Box2D (https://github.com/erincatto/box2d) or Bullet3 (https://github.com/bulletphysics/bullet3) could really benefit a lot from SIMD.
- After months of work, I'm excited to share the first release of Godot Jolt, an extension that integrates the Jolt physics engine into Godot, demonstrated using GDQuest's RoboBlast
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X4's Upcoming Multiplayer Features Are a Huge Step Forward
No, they replaced Bullet with Jolt. That is considerably more than "some adjustment", regardless of what you think of the result.
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Brick Breaker
Vulkan graphics via Intel GVK, and physics via Bullet
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Ive been programming for four years and I told my dad to watch long videos and complete your own projects to learn most efficiently. He thinks he’s ready to tackle any project after a ten minute video…
The first two have a bunch of great examples, and I’m tying them together by refactoring some of the THREE examples to fit the ECS paradigm defined in AFrame. then upping the ante by adding physics using AMMO, which is more challenging since it’s only a partial implementation of Bullet, and already poorly documented (yet popular) physics engine.
- Recommended Physics Engine?
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C# Game engine - suggestions
Integrate a 3D physics engine like Bullet3D
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Convenient CPU feature detection and dispatch in the Magnum Engine
Bullet: https://github.com/bulletphysics/bullet3/blob/5ae9a15ecac7bc7e71f1ec1b544a55135d7d7e32/src/LinearMath/btCpuFeatureUtility.h
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Legged Robots in Ignition / Gazebo
If you are not constrained to using Gazebo as the simulation environment, I would also suggest pybullet. (Here)[https://github.com/bulletphysics/bullet3/blob/master/examples/pybullet/examples/quadruped.py] is the quadruped simulation script, it is super simple to get it running and also meets your requirements(as mentioned in the question)
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Newton Dynamics vs Bullet Physics for Game Engine?
Someone I know is fond of using the term 'bus factor' when discussing libraries like these, as in "how many people need to get killed by a bus in order for the project to die?" Both Newton and Bullet have a bus factor of 1, meaning 1 particular guy needs to get hit and the lion's share of commit contributions comes to an end, although Bullet bus factor is probably slightly higher than Newton.
mujoco
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Deep learning for robotics
I am doing a MSc on robotics with a focus on machine learning, especially attention based architectures. There is a lot simulation and reinforcement learning going on. I have a funding of ~2500$ for the hardware system (no flexibility here, cannot use it for cloud either). I used pcpartpicker.com to select compatible components, as shown below. I am not located in the western part of the world; which means I have difficulty accessing some components and prices are higher here than that of pcpartpicker.com. That is why I am aiming towards 2000 - 2200$ range in the pcpartpicker.com. - Overall, what do you think of my planned setup? - Since there is a lot of simulation planned including rigid body dynamics with contact (libraries like https://github.com/raisimTech/raisimLib, https://github.com/deepmind/mujoco), I need some powerful CPU to use these libraries. I know that Intel has MKL over AMD; however, I am not sure how relevant that is for my case. The robotics simulators are generally written with C++, uses Eigen or their own math libraries. I feel like there is a lot of linear algebra involved and Intel combined with MKL should give me less headache. I have chosen i9-12900K, but what about AMD Ryzen9 5950X for example? - There is a new generation of rigid body simulators which use GPU instead of CPU (https://github.com/google/brax, https://developer.nvidia.com/isaac-gym). I do not think they are as mature as the previously mentioned simulators. Perhaps I am mistaken. Shall I focus on them instead? In terms of hardware that means I can downgrade the CPU to Ryzen5, and upgrade to RTX3080, roughly. - Do you think this system is easy to upgrade in future? What can I change to make it easier for long-term use and upgrades? Thanks for any help!
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[D] Advice on Hardware Setup for Robotics
Since there is a lot of simulation planned including rigid body dynamics with contact (libraries like https://github.com/raisimTech/raisimLib, https://github.com/deepmind/mujoco), I need some powerful CPU to use these libraries. I know that Intel has MKL over AMD; however, I am not sure how relevant that is for my case. The robotics simulators are generally written with C++, uses Eigen or their own math libraries. I feel like there is a lot of linear algebra involved and Intel combined with MKL should give me less headache. I have chosen i9-12900K, but what about AMD Ryzen9 5950X for example?
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Julia 1.7 has been released
I think I have a good news for you. Deep mind acquired and open sourced the project a few months ago.
- Most Popular C[++] Open-Source Physics Engines
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DeepMind open-sourcing MuJoCo simulator
They actually didn't open source it:
>Free, unrestricted, precompiled binaries are available under the Apache 2.0 license.
If you look at their source code here: https://github.com/deepmind/mujoco you will see that they provide only headers. Try finding impl for a function mj_makeEmptyFileVFS: https://github.com/deepmind/mujoco/search?q=mj_makeEmptyFile...
What are some alternatives?
PhysX - NVIDIA PhysX SDK
Box2D - Box2D is a 2D physics engine for games
CHRONO - High-performance C++ library for multiphysics and multibody dynamics simulations
Newton Dynamics - Newton Dynamics is an integrated solution for real time simulation of physics environments.
ODE
gazebo-classic - Gazebo classic. For the latest version, see https://github.com/gazebosim/gz-sim
brax - Massively parallel rigidbody physics simulation on accelerator hardware.
Simbody - High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton.
Godot - Godot Engine – Multi-platform 2D and 3D game engine
reactphysics3d - Open source C++ physics engine library in 3D
raylib - A simple and easy-to-use library to enjoy videogames programming
Chipmunk - A fast and lightweight 2D game physics library.