Libgdx gl10.glLineWidth()

From libgdx 1.0 on there is also the ShapeRenderer’s rectLine method available. See a simple example.

ShapeRenderer shapeRenderer = new ShapeRenderer();
shapeRenderer.begin(ShapeType.Filled);
shapeRenderer.rectLine(x1, y1, x2, y2, width);
shapeRenderer.end();

That seems to be the easiest way to draw thick lines now.

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