32 releases (21 breaking)

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0.24.1 Nov 30, 2023
0.10.0 Feb 28, 2021

#935 in GUI

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214,272 downloads per month
Used in 820 crates (22 directly)

MIT/Apache

750KB
12K SLoC

epaint - egui paint library

Latest version Documentation unsafe forbidden MIT Apache

A bare-bones 2D graphics library for turning simple 2D shapes and text into textured triangles.

Made for egui.


lib.rs:

A simple 2D graphics library for turning simple 2D shapes and text into textured triangles.

Made for egui.

Create some Shape:s and pass them to tessellate_shapes to generate Mesh:es that you can then paint using some graphics API of your choice (e.g. OpenGL).

Coordinate system

The left-top corner of the screen is (0.0, 0.0), with X increasing to the right and Y increasing downwards.

epaint uses logical points as its coordinate system. Those related to physical pixels by the pixels_per_point scale factor. For example, a high-dpi screen can have pixels_per_point = 2.0, meaning there are two physical screen pixels for each logical point.

Angles are in radians, and are measured clockwise from the X-axis, which has angle=0.

Feature flags

Dependencies

~2–8MB
~65K SLoC