msdfgen
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msdfgen
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Shader Park Is Kinda Neat
This very well explained here https://github.com/Chlumsky/msdfgen and with more details in link d pdf.
Basically, signed distance fields allow high resolution renders from low resolution rasters which represent character shape.
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SDF font rendering & cuttoff parameter value
No idea how to help you but I will just drop this since it improved the quality for me by 1000 https://github.com/Chlumsky/msdfgen
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Best approach to render a lot of text.
And that's the complicated state of the art version for 3D perspective. Other versions are even simpler.
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Leveraging Rust and the GPU to render user interfaces at 120 FPS
This is known as a “multi-channel signed distance field”, or “msdf”.
https://github.com/Chlumsky/msdfgen
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Font question: What software do you use to create "Signed Distance Field" from OTF or TTF?
I use this, free and has been very good for me https://github.com/Chlumsky/msdfgen
- MelonJS – a fresh and lightweight JavaScript game engine
- What is the maximum number of texture2D's I can have in a single texture array uniform binding?
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Why are SDF editors not more popular for creating assets?
Distance fields are not slow to render. They don't need a powerful gpu. Valve was already using SDF for textures in 2007 and released a paper about it. MSDF (multi channel signed distance fields) is a popular text libraries for game engine devs that uses distance fields. Distance fields are fast to render in 2D and even 3D. The problem is with everything around it. Lighting, shadows, shading will all require specialized tooling and likely a specialized engine for very little benefit (imo).
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Vector Graphics on GPU
Signed distance fields only work well for relatively simple characters.
If you have highly detailed characters like Chinese or emojis, you need larger resolution to faithfully represent every detail. One way to get around excessive memory requirements is to store the characters in their default vector forms and only render the required characters on demand, but then you might as well render them at the required pixel resolution and do away with the additional complexity of SDF rendering.
SDFs are still useful though if you have to render text at many different resolutions, for example on signs in computer games, as seen in the original paper https://steamcdn-a.akamaihd.net/apps/valve/2007/SIGGRAPH2007...
In the past, SDFs also had problems with sharp corners, which has been solved in https://github.com/Chlumsky/msdfgen
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Adventures in Text Rendering: Kerning and Glyph Atlases
MSDFGen looks pretty sweet. https://github.com/Chlumsky/msdfgen
vertext
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Methods for font rendering
This is the method I use: I made my own single header font rendering library. It uses bitmap rendering so it's more basic than signed distance fields but it works for all of my needs. it's also super easy to use. it hands you a vertex array object along with a font texture that you bind and draw with whatever graphics API you are using. https://github.com/kevinmkchin/TrueTypeAssembler it's public domain so feel free to study it or use it
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Need help with C Font-Rendering with FreeType
I made a single header c library for this exact purpose: https://github.com/kevinmkchin/TrueTypeAssembler it's very short. give it a read.
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Is this way of rendering text and numerals on screen fast and a good aproach?
A couple weeks ago, I created and shared a single header library that does what you want: https://github.com/kevinmkchin/TrueTypeAssembler
- I wrote a single-header library to create textured quads for rendering text onto the screen
What are some alternatives?
msdf-atlas-gen - MSDF font atlas generator
msdfgl - OpenGL implementation of the MSDF algorithm
8SSEDT - Tutorial about 8-points Signed Sequential Euclidean Distance Transform
stb - stb single-file public domain libraries for C/C++
vello - An experimental GPU compute-centric 2D renderer.
troika - A JavaScript framework for interactive 3D and 2D visualizations
nanovg - Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
libGDX - Desktop/Android/HTML5/iOS Java game development framework
harfbuzz - HarfBuzz text shaping engine
ffvideo - an example FFmpeg lib, and wxWidgets Player with video filters and face detection
lopdf - A Rust library for PDF document manipulation.