plutovg
SmartMatrix-playpen
| plutovg | SmartMatrix-playpen | |
|---|---|---|
| 7 | 3 | |
| 296 | 2 | |
| - | - | |
| 0.0 | 4.5 | |
| 3 months ago | almost 3 years ago | |
| C | C++ | |
| MIT License | - |
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plutovg
- 2D graphics lib recommendation?
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Supersample CRGB array
Sub-pixel positioned anti-aliased lines and dots are simple. Extending that idea to drawing any shape is far more fiddly. I found this excellent rasteriser and this article which explains how it works. PlutoVG wraps that rasteriser in an easy-to-use API. I'm very happy with the results.
- Tiny 2D vector graphics library in C
- PlutoVG - Tiny 2D vector graphics library in C
SmartMatrix-playpen
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Need a trippy color spiral for your matrix? I gotcha covered.
I'm not aware of any general significance of DrawOneFrame functions. They don't invoke any particular FastLED behaviour. For projects where a variety of different effects can be presented, the author may choose to use C++ classes to provide a standard interface to initialise and display those effects. In my WavyDots sketch, that function name is a vestige of such a choice. The Aurora project does something similar. So does the Striptease project, but there the DrawOneFrame function is simply called loop.
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Any repository of perpetual 2D effects? (E.g. game of life, fractals, mathematical functions, etc.)
I have a repo with a few such effects. They are not intended for FastLED, but wouldn't require much effort to get working with FastLED. Video.
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Supersample CRGB array
On the T4 I found I can completely fill the screen with them: ~8,000 Wu pixels per frame at ~80 FPS. Is the current speed hampering you on ESP32?
What are some alternatives?
plutosvg - Tiny SVG rendering library in C
ESP32StockTicker - Basic stock ticker using ESP32 and MAX7219 LED Matrix. Produces a webpage so user can input a ticker.
vkvg - Vulkan 2D graphics library
Striptease - Sexy, audio-responsive effects on LED strips.
cglm - 📽 Highly Optimized 2D / 3D Graphics Math (glm) for C
aurora - Aurora runs on SmartMatrix, a beautiful music visualizer, dynamic art display, video game art display.
GCanvas - A lightweight cross-platform graphics rendering engine. (超轻量的跨平台图形引擎) https://alibaba.github.io/GCanvas
stb - stb single-file public domain libraries for C/C++
evec - Easy to use header only vector data type for C programs.
nanovg - Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
olive.c - Simple 2D Graphics Library for C
tigr - TIGR - the TIny GRaphics library for Windows, macOS, Linux, iOS and Android.