ImmutableMaterial colorMaterial =
new ImmutableMaterial(Lighting.FLAT, color);
target.drawTriangleStrip(colorMaterial, asList(
lastV,
headStart.subtract(endDirXZ.mult(headLength/2)),
headStart.add(endDirXZ.mult(headLength/2))),
null);
target.drawTriangleStrip(colorMaterial, asList(
lastV,