Bullet
PhysX
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Bullet | PhysX | |
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41 | 17 | |
11,886 | 3,073 | |
2.0% | 1.0% | |
3.4 | 0.0 | |
12 days ago | 8 months ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
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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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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)...
- Looking for specific pre-Microsoft Havok Physics SDK version (2013, 2014)
- Software for Mechanism Analysis
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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.
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Their music is just too good
Plus, SM uses a system called bullet physics, I imagine this would be rather complex to rework into a modern engine such as Unreal or Unity (after all, the majority of performance issues come from the physics engine rather than the graphics engine)
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Is anyone working on more effecient HDT-SMP?
The physics in HDT-SMP are actually being calculated outside of Skyrim's engine with Bullet, an open-source physics engine. So this isn't some limitation of Skyrim's engine.
PhysX
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If you can't beat, block em
I know you mean PhysX how it was WAYYY back (& GPU accel), but it's been open source for ages.
- GamersNexus asks AMD if their contracts block other upscaling tech. AMD's response: "No Comment"
- 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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I looked into KSP2 Code, here is what I've found
Unity’s default physics engine is literally PhysX (https://github.com/NVIDIAGameWorks/PhysX).
- found on r/coaxedintosnafu
- Where and how can I learn to make simulation programs? I like to be a simulation developer!
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Does anyone know how VPhysics (Source's implementation of Havok) do such a good job at solving the bullet through paper problem?
It all gets petty hairy.. which is why writing physics engines is Hard, and you should be pretty skeptical when someone is like: "Hay gauis I made a new phYsics engine!! you should totally use it!" Even the big guys thrash around in this space.. as someone mentioned in another comment... although there is sometimes a case to be made for rolling your own, if you're valve for instance.. All that said, I'm really partial to Bullet just because it's so damn battle tested (unity/blender and countless other engines) But I'm generally pro havok/physX and also the newer Jolt physics library. https://github.com/NVIDIAGameWorks/PhysX https://github.com/ashconnell/physx-js https://jrouwe.github.io/JoltPhysics/
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Nvidia PhysX 5.0 is now open source
Then what about this? https://github.com/NVIDIAGameWorks/PhysX/tree/4.1/physx
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y'all forgot that NIS existed.
PhysX has gone open source quite a while ago as well: https://github.com/NVIDIAGameWorks/PhysX https://github.com/NVIDIAGameWorks/UnityPhysXPlugin
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I ran a.bat file from a pull request in Nvidia physX github reopository, is it ok?
The pull request can be found here: https://github.com/NVIDIAGameWorks/PhysX/pull/577
What are some alternatives?
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
mujoco - Multi-Joint dynamics with Contact. A general purpose physics simulator.
LiquidFun - 2D physics engine for games
Simbody - High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton.
Chipmunk - A fast and lightweight 2D game physics library.