diff --git a/ext/atlas/README.md b/ext/atlas/README.md
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--- /dev/null
+++ b/ext/atlas/README.md
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+# Atlas Extension
+
+This is a simple example of the texture atlas extension.
diff --git a/ext/atlas/hiking.png b/ext/atlas/hiking.png
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diff --git a/ext/atlas/main.go b/ext/atlas/main.go
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+++ b/ext/atlas/main.go
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+package main
+
+import (
+	"github.com/gopxl/pixel/v2"
+	"github.com/gopxl/pixel/v2/backends/opengl"
+	"github.com/gopxl/pixel/v2/ext/atlas"
+	"golang.org/x/image/colornames"
+)
+
+var (
+	Atlas  atlas.Atlas
+	group  = Atlas.MakeGroup()
+	hiking = group.AddFile("hiking.png")
+	gopher = Atlas.AddFile("thegopherproject.png")
+)
+
+func run() {
+	cfg := opengl.WindowConfig{
+		Title:  "Atlas example",
+		Bounds: pixel.R(0, 0, 1024, 768),
+	}
+	win, err := opengl.NewWindow(cfg)
+	if err != nil {
+		panic(err)
+	}
+	defer win.Destroy()
+
+	Atlas.Pack()
+
+	for !win.Closed() {
+		if win.JustPressed(pixel.KeyEscape) {
+			win.SetClosed(true)
+		}
+
+		win.Clear(colornames.Skyblue)
+
+		hiking.Draw(win, pixel.IM.Moved(win.Bounds().Center()))
+		gopher.Draw(win, pixel.IM.Moved(win.Bounds().Center()))
+
+		win.Update()
+	}
+}
+
+func main() {
+	opengl.Run(run)
+}
diff --git a/ext/atlas/thegopherproject.png b/ext/atlas/thegopherproject.png
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