pathfinder
stb
pathfinder | stb | |
---|---|---|
16 | 164 | |
3,458 | 25,128 | |
0.9% | - | |
6.3 | 6.4 | |
about 1 month ago | 3 days ago | |
Rust | C | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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.
pathfinder
-
Capturing the WebGPU Ecosystem
https://github.com/coconut-xr/apfel-kruemel works today, I only know about battery-optimized software in the context of games though.
https://felt.com/blog/svg-to-canvas-part-2-building-interact... and https://github.com/servo/pathfinder/ might also be of interest.
-
Servo, the parallel browser engine written in Rust
Parts of Servo to enable the use of the GPU for compositing layers were merged into Firefox years ago.
https://hacks.mozilla.org/2017/10/the-whole-web-at-maximum-f...
It's a shame that Patrick Walton didn't get a chance to finish his work on the Pathfinder GPU renderer.
>Pathfinder 3 is a fast, practical, GPU-based rasterizer for fonts and vector graphics using OpenGL 3.0+, OpenGL ES 3.0+, WebGL 2, and Metal.
https://github.com/servo/pathfinder
-
Forma: An efficient vector-graphics renderer
You might be interested in https://github.com/servo/pathfinder
-
What do you believe Firefox is missing?
It uses too much CPU and performance leaves much to be desired compared to Chromium. They were going to use Pathfinder in Firefox to solve this problem, but since Pathfinder is discontinued due to the massive layoffs at Mozilla, the project was abandoned. And they need a replacement IMO.
-
Stereokit – open-source mixed reality library by Microsoft
I am not an expert in the area, just somebody who read up on it after realizing desktop in VR does not work out for me (and usually low res is not a problem).
I think something like https://github.com/servo/pathfinder (newer) and as you mentioned SDF (older) are the latest approaches.
-
PSA: OffscreenCanvas now enabled by default on nightly only
This is exciting! And, by the way, are you planning to implement something similar to Servo's Pathfinder in Firefox?
-
Getting into GUI: Shapes moving on networks
Also on my list was pathfinder. There the documented crate is vastly different from https://github.com/servo/pathfinder which looks much more promising – it comes with a few examples, some of wihch might help me get started, maybe?
- De ce atat de multa lume urăște Java?
-
WebKit: Introducing the layer based SVG engine
Have you checked out the Pathfinder library?
https://github.com/servo/pathfinder
-
I wrote a web based text editor to showcase sauron framework, but it turns out better than I expected, less than 20ms typing latency.
Don't forget gpu-based text rendering (e.g. #1, #2, #3). It's still in its infant stages, and seems to be mostly untouched over the past 5 years, but I suspect it will become the preferred method for rendering text later.
stb
- Lessons learned about how to make a header-file library (2013)
-
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++
-
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
-
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
-
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.
-
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).
-
What C libraries do you use the most?
STB Libraries: https://github.com/nothings/stb
-
[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?
What are some alternatives?
Skia - Skia is a complete 2D graphic library for drawing Text, Geometries, and Images.
Vcpkg - C++ Library Manager for Windows, Linux, and MacOS
lyon - 2D graphics rendering on the GPU in rust using path tessellation.
imgui-node-editor - Node Editor built using Dear ImGui
nanovg - Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
ZXing - ZXing ("Zebra Crossing") barcode scanning library for Java, Android
sauron - A versatile web framework and library for building client-side and server-side web applications
freetype-gl - OpenGL text using one vertex buffer, one texture and FreeType
Servo - Servo, the embeddable, independent, memory-safe, modular, parallel web rendering engine
ImageMagick - 🧙♂️ ImageMagick 7
StereoKit - An easy-to-use XR engine for building AR and VR applications with C# and OpenXR!
Cppcheck - static analysis of C/C++ code