vger
glyphy
| vger | glyphy | |
|---|---|---|
| 4 | 3 | |
| 247 | 658 | |
| 0.8% | - | |
| 7.5 | 5.5 | |
| 3 months ago | 10 months ago | |
| C | C++ | |
| MIT License | GNU General Public License v3.0 or later |
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vger
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Drawing with Lua in the Canvas Node in Audulus 1: Hello Rectangle!
You can see the source code for vger here: https://github.com/audulus/vger
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Vector Graphics on GPU
I did vector graphics using SDFs in this library (https://github.com/audulus/vger). Works pretty well for my uses which are rendering dynamic UIs, not rendering SVGs. But I can still do some pretty gnarly path fills!
glyphy
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Why Modern Software Is Slow
harfbuzz creator made https://github.com/behdad/glyphy/ which i integrated into GTK a while back (but we don't ship currently, because we still do the bitmap stuff).
the bitmap stuff still has major drawbacks though, like maintaining grid alignments and pixel boundaries where as this stuff (mostly) goes away using glyphy.
still work to be done around hinting though (hence not merged).
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Vector Graphics on GPU
You can approximate the Bézier curves with circular arcs and store those in the "SDF" instead. https://github.com/behdad/glyphy
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The end of the nice GTK button
> The only issue with it is that font rendering looks horrific, but that might just be my machine.
This is because GTK4 enables pixel/scaling-independent fractional vertical positioning, even with hinting enabled. There's a long (somewhat ongoing) discussion at https://gitlab.gnome.org/GNOME/gtk/-/issues/3787, though I haven't followed the last few months of discussion.
Even though GTK4 aims to achieve scale-independent layout, the 4 horizontal/vertical positions still produce a bit of judder, and fonts do not scale smoothly (even with bilinear interpolation) with hinting enabled, and (unless fixed) there are rendering issues due to failing to clear the texture atlas properly: https://gitlab.gnome.org/GNOME/gtk/-/issues/4322
Interestingly there's a proposal to switch GTK4 fonts to SDF-style rendering. This is somewhat like what Qt Quick 2 implemented already (and KDE turns off and reverts to FreeType rendering, to make QML apps mimic Qt Widgets font rendering more): https://blogs.gnome.org/chergert/2022/03/20/rendering-text-w... However, I looked at https://github.com/behdad/glyphy and it seems to implement vector-based SDFs, instead of earlier texture-based SDF/MSDFs used by Valve games and Qt Quick.
What are some alternatives?
rui - Declarative Rust UI library
qt6ct - Qt6 Configuration Tool
nanovgXC - Lightweight vector graphics library implementing exact-coverage antialiasing in OpenGL
contrast_renderer - Contrast is a WebGPU based 2D render engine written in Rust
vger-rs - 2D GPU renderer for dynamic UIs
Fly-Pie - :pie: Fly-Pie is an innovative marking menu written as a GNOME Shell extension.
TrustKit - Easy SSL pinning validation and reporting for iOS, macOS, tvOS and watchOS.
stylus - Stylus - Userstyles Manager
msdfgen - Multi-channel signed distance field generator
iSCSIInitiator - iSCSI Initiator for macOS