Ink is a framework for creative 2D graphics in Go, based on OpenGL. Visit buchanae.github.io/ink for more.
Example: a simple triangle
Install:
go get github.com/buchanae/ink
(Building Ink is a little tricky, because it depends on GLFW. You might need to install these packages:
build-essential
xorg-dev
Write example.go:
package main
import (
. "github.com/buchanae/ink/color"
. "github.com/buchanae/ink/dd"
"github.com/buchanae/ink/gfx"
)
func Ink(doc gfx.Doc) {
t := Triangle{
XY{0.2, 0.2},
XY{0.8, 0.2},
XY{0.5, 0.8},
}
s := gfx.Fill{Shape: t}.Shader()
s.Set("a_color", []RGBA{
Red, Green, Blue,
})
s.Draw(doc)
}
Run:
ink example.go
Ink opens a window and renders your triangle:
There are more examples in the sketches directory.
Implementation Notes
- Ink is based on OpenGL only, although other backends are desired. There is an experimental WebGL branch.
- Ink is focused on 2D graphics, although 3D is desired some day.
- Most numbers are float32, because OpenGL APIs are mostly based on float32s.
- This is also why I haven't used the Go stdlib
image/color. I admit this feels messy.
- This is also why I haven't used the Go stdlib
- Angles are in radians, unless otherwise noted.
