ShaderLib2D.md

@@ -16,4 +16,9 @@ canvas.add_data(verts, colors, indices)
 geom = canvas.compile()
 verts = geom.verts
 tris = geom.tris
+indices = geom.indices
+
+# then you can pass all shapes in one go to the batch draw.
+batch = batch_for_shader(shader, 'TRIS', {"pos": geom.vectors, "color": geom.vertex_colors}, indices=geom.indices)
+batch.draw(shader)
 ```
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