DirectXMath
LearnOpenGL
DirectXMath | LearnOpenGL | |
---|---|---|
13 | 624 | |
1,481 | 10,290 | |
0.3% | - | |
6.6 | 3.8 | |
about 1 month ago | 14 days ago | |
C++ | C++ | |
MIT License | GNU General Public License v3.0 or later |
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DirectXMath
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Vector math library benchmarks (C++)
For those unfamiliar, like I was, DXM is DirectXMath.
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Learning DirectX 12 in 2023
Alongside MiniEngine, you’ll want to look into the DirectX Toolkit. This is a set of utilities by Microsoft that simplify graphics and game development. It contains libraries like DirectXMesh for parsing and optimizing meshes for DX12, or DirectXMath which handles 3D math operations like the OpenGL library glm. It also has utilities for gamepad input or sprite fonts. You can see a list of the headers here to get an idea of the features. You’ll definitely want to include this in your project if you don’t want to think about a lot of these solved problems (and don’t have to worry about cross-platform support).
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Optimizing compilers reload vector constants needlessly
Bad news. For SIMD there are not cross-platform intrinsics. Intel intrinsics map directly to SSE/AVX instructions and ARM intrinsics map directly to NEON instructions.
For cross-platform, your best bet is probably https://github.com/VcDevel/std-simd
There's https://eigen.tuxfamily.org/index.php?title=Main_Page But, it's tremendously complicated for anything other than large-scale linear algebra.
And, there's https://github.com/microsoft/DirectXMath But, it has obvious biases :P
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MATHRIL - Custom math library for game programming
I am not in gamedev, but work with 3D graphics, we use DirectX 11, so DirectXMath was a natural choice, it is header only, it supports SIMD instructions (SSE, AVX, NEON etc.), it can even be used on Linux (has no dependence on Windows). It of course just one choice: https://github.com/Microsoft/DirectXMath.
- When i had to look up what a Quaternion is
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Eigen: A C++ template library for linear algebra
I never really used GLM, but Eigen was substantially slower than DirectXMath https://github.com/microsoft/DirectXMath for these things. Despite the name, 99% of that library is OS agnostic, only a few small pieces (like projection matrix formula) are specific to Direct3D. When enabled with corresponding macros, inline functions from that library normally compile into pretty efficient manually vectorized SSE, AVX or NEON code.
The only major issue, DirectXMath doesn’t support FP64 precision.
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maths - templated c++ linear algebra library with vector swizzling, intersection tests and useful functions for games and graphics dev... includes live webgl/wasm demo ?
If you’re the author, consider comparisons with the industry standards, glm and DirectXMath, which both ensure easy interoperability with the two graphics APIs.
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Algorithms for division: Using Newton's method
Good article, but note that if the hardware supports the division instruction, will be much faster than the described workarounds.
Personally, I recently did what’s written in 2 cases: FP32 division on ARMv7, and FP64 division on GPUs who don’t support that instruction.
For ARM CPUs, not only they have FRECPE, they also have FRECPS for the iteration step. An example there: https://github.com/microsoft/DirectXMath/blob/jan2021/Inc/Di...
For GPUs, Microsoft classified FP64 division as “extended double shader instruction” and the support is optional. However, GPUs are guaranteed to support FP32 division. The result of FP32 division provides an awesome starting point for Newton-Raphson refinement in FP64 precision.
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Use of BLAS vs direct SIMD for linear algebra library operations?
For graphics DX math is a very good library.
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Speeding Up `Atan2f` by 50x
I wonder how does it compare with Microsoft’s implementation, there: https://github.com/microsoft/DirectXMath/blob/jan2021/Inc/Di...
Based on the code your version is probably much faster. It would be interesting to compare precision still, MS uses 17-degree polynomial there.
LearnOpenGL
- Learn OpenGL eBook
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LearnD3D11, a guide aimed at anyone trying to learn Direct3D11
Also recommended: LearnOpenGL [1] and Vulkan Guide [2]
[1]: https://learnopengl.com/
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Making Small Games, Which Is Fun in Itself
I want to begin game development as a hobby, but I'm unsure where to start. I did follow through https://learnopengl.com/ a few years ago, and while it was a very interesting experience, I imagine I would need to use an existing engine to be productive.
Do you recommend any books and tutorials aimed at experienced programmers with 0 knowledge of game development/design?
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Is there space in this field for extreme cases like mine ?
- Game development - Unity3D project based learning in C#: https://learn.unity.com/ - Graphics - There was another user on r/GraphicsProgramming the other day (who teaches Computer Graphics at his university) that linked their lecture series for the entry year of their course here: https://tamats.com/learn/realtime-graphics/ - Project based learning: https://github.com/ssloy/tinyrenderer/wiki - Rendering API tutorials: https://vulkan-tutorial.com/, https://learnopengl.com/
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Where do I start to learn C++ for a game development
If u want to make 3D game, you'll probably want to learn some 3D shader graphic stuff. OpenGL is a good start. https://learnopengl.com
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Ask HN: Learn Graphics Programming, Recommendations?
LearnOpenGl.com
Possibly a smidge outdated.
Goes from blank window to rendering 3d meshes with advanced lighting techniques (HDR, SSAO and more).
Heped me understand shader pipeline, so I recommend it.
https://learnopengl.com
- I’m Bored AF!
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Looking to get started
and then https://learnopengl.com/
- Ajutor in privinta incercarii a face un joc
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Is a bounding volume a mesh? (for visualization)
I'm reading the guest article about frustum culling on learnopengl.com and there's a video demonstrating how it works and for debug purposes they have a bunch of spheres turning red or green which I assume means they're being culled or not so my question is if I wanted to do this do I have to make a mesh for whatever bounding volume shape or is there a specific method for something like this?
What are some alternatives?
GLM - OpenGL Mathematics (GLM)
raylib - A simple and easy-to-use library to enjoy videogames programming
highway - Performance-portable, length-agnostic SIMD with runtime dispatch
bgfx - Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.
libjxl - JPEG XL image format reference implementation
imgui - Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
Fastor - A lightweight high performance tensor algebra framework for modern C++
sokol - minimal cross-platform standalone C headers
glibc - GNU Libc
bevy - A refreshingly simple data-driven game engine built in Rust
Vc - SIMD Vector Classes for C++
SFML - Simple and Fast Multimedia Library