stb
glad
stb | glad | |
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164 | 43 | |
25,128 | 3,510 | |
- | - | |
6.4 | 7.1 | |
1 day ago | 25 days 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.
stb
- Lessons learned about how to make a header-file library (2013)
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Nebula is an open-source and free-to-use modern C++ game engine
Have you considered not using an engine at all, in favor of libraries? There are many amazing libraries I've used for game development - all in C/C++ - that you can piece together:
* General: [stb](https://github.com/nothings/stb)
- STB: Single-file public domain libraries for C/C++
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Writing a TrueType font renderer
Great to see more accessible references on font internals. I have dabbled on this a bit last year and managed to have a parser and render the points of a glyph's contour (I stopped before Bezier and shape filling stuff). I still have not considered hinting, so it's nice that it's covered. What helped me was an article from the Handmade Network [1] and the source of stb_truetype [2] (also used in Dear ImGUI).
[1] https://handmade.network/forums/articles/t/7330-implementing....
[2] https://github.com/nothings/stb/blob/master/stb_truetype.h
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Capturing the WebGPU Ecosystem
So I read through the materials on mesh shaders and work graphs and looked at sample code. These won't really work (see below). As I implied previously, it's best to research/discuss these sort of matters with professional graphics programmers who have experience actually using the technologies under consideration.
So for the sake of future web searchers who discover this thread: there are only two proven ways to efficiently draw thousands of unique textures of different sizes with a single draw call that are actually used by experienced graphics programmers in production code as of 2023.
Proven method #1: Pack these thousands of textures into a texture atlas.
Proven method #2: Use bindless resources, which is still fairly bleeding edge, and will require fallback to atlases if targeting the PC instead of only high end console (Xbox Series S|X...).
Mesh shaders by themselves won't work: These have similar texture access limitations to the old geometry/tessellation stage they improve upon. A limited, fixed number of textures still must be bound before each draw call (say, 16 or 32 textures, not 1000s), unless bindless resources are used. So mesh shaders must be used with an atlas or with bindless resources.
Work graphs by themselves won't work: This feature is bleeding edge shader model 6.8 whereas bindless resources are SM 6.6. (Xbox Series X|S might top out at SM 6.7, I can't find an authoritative answer.) It looks like work graphs might only work well on nVidia GPUs and won't work well on Intel GPUs anytime soon (but, again, I'm not knowledgeable enough to say this authoritatively). Furthermore, this feature may have a hard dependency on using bindless to begin with. That is, I can't tell if one is allowed to execute a work graph that binds and unbinds individual texture resources. And if one could do such a thing, it would certainly be slower than using bindless. The cost of bindless is paid "up front" when the textures are uploaded.
Some programmers use Texture2DArray/GL_TEXTURE_2D_ARRAY as an alternative to atlases but two limitations are (1) the max array length (e.g. GL_MAX_ARRAY_TEXTURE_LAYERS) might only be 256 (e.g. for OpenGL 3.0), (2) all textures must be the same size.
Finally, for the sake of any web searcher who lands on this thread in the years to come, to pack an atlas well a good packing algorithm is needed. It's harder to pack triangles than rectangles but triangles use atlas memory more efficiently and a good triangle packing will outperform the fancy new bindless rendering. Some open source starting points for packing:
https://github.com/nothings/stb/blob/master/stb_rect_pack.h
https://github.com/ands/trianglepacker
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Www Which WASM Works
The STB headers are mostly built like that: https://github.com/nothings/stb
You could also add an optional 'convenience API' over the lower-level flexible-but-inconvenient core API, as long as core library can be compiled on its own.
In essence it's just a way to decouple the actually important library code from runtime environment details which might be better implemented outside the C/C++ stdlib.
It's already as simple as the stdlib IO functions not being asynchrononous while many operating systems provide more modern alternatives. For a specific type of library (such an image decoder) it's often better to delegate such details to the library user instead of circumventing the stdlib and talking directly to OS APIs.
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File for Divorce from LLVM
My stuff for instance:
https://github.com/floooh/sokol
...inspired by:
https://github.com/nothings/stb
But it's not so much about the build system, but requiring a separate C/C++ compiler toolchain (Rust needs this, Zig currently does not - unless the proposal is implemented).
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What C libraries do you use the most?
STB Libraries: https://github.com/nothings/stb
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[Noob Question] How do C programmers get around not having hash maps?
stb_ds is also very popular.
- Is there an existing multidimensional hash table implementation in C?
glad
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STB: Single-file public domain libraries for C/C++
there's glad (https://github.com/Dav1dde/glad) which you can use as a single .c file + .h header that defines OpenGL stuff or a single header-only file. I use it on all of my OpenGL projects!
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How do I enable anisotropic filtering with GLAD?
If you run into a similar issue with another extension, you need to manually add extensions when generating the GLAD loader.
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Exploring Computer Graphics: Weekly Chronicle #1
GLEW/GLAD: Libraries that manage and give access to OpenGL functions and extensions. The difference is that GLAD allows for greater flexibility & customization for more recent versions of OpenGL. However, the Udemy course that I'm following uses GLEW and at least at this point, I prefer to follow along with the tools that each resource recommends.
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Implications of running OpenGL inside a VM(parallels) on a Mac
I downloaded glad from this website : http://glad.dav1d.de/ I was also referring to this tutorial to setup my project : https://learnopengl.com/Getting-started/Creating-a-window
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How do you setup OpenGL?
Not sure what you're asking, what is your end goal? If you opt for glfw look at the glfw docs: https://www.glfw.org/documentation.html and/or https://github.com/Dav1dde/glad/blob/glad2/example/c/gl_glfw.c for GLAD
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Modern OpenGL loading library solution
Just link to GLAD if you're going to link to it! https://github.com/Dav1dde/glad
- When I compile my program, it has a problem with my include statement for the GLFW header file.
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I (Putnam) put an up-to-date version of the graphics portion of Dwarf Fortress on Github, including the upcoming SDL2 version on a branch
glew is a GL extension/loading library, OP didn't write glew, personally I use GLAD (https://glad.dav1d.de/) in my projects, which is pretty much the same thing but auto-generated for you based on your project requirements.
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including opengl header file but can't use its functions
In general nobody really uses the gl headers because they are super outdated and, i believe, only use Microsoft's software renderer for OpenGL. You should use a OpenGL function loader like GLAD instead.
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Is setting up C+OpenGL with VSC really that hard?
Just use a library like glad which loads everything at runtime under the hood (even system OpenGL runtime, no need to link anything). For a quick start, there is a website to generate headers and a single glad.c to put in your project: https://glad.dav1d.de/
What are some alternatives?
Vcpkg - C++ Library Manager for Windows, Linux, and MacOS
glew - The OpenGL Extension Wrangler Library
imgui-node-editor - Node Editor built using Dear ImGui
GLFW - A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input
ZXing - ZXing ("Zebra Crossing") barcode scanning library for Java, Android
glew-cmake - GLEW(https://github.com/nigels-com/glew, source updated nightly) with Cmake and pre-generated sources
freetype-gl - OpenGL text using one vertex buffer, one texture and FreeType
opengl-imgui-cmake-template - 👾 template repo for getting started with opengl together with imgui using cmake
ImageMagick - 🧙♂️ ImageMagick 7
ImGuizmo - Immediate mode 3D gizmo for scene editing and other controls based on Dear Imgui
Cppcheck - static analysis of C/C++ code
LearnOpenGL - Code repository of all OpenGL chapters from the book and its accompanying website https://learnopengl.com