Adding one extra vertex in solid circle primitive in order to fill missing triangle (especially visible with low segment count)

src/Magnum/Primitives/Circle.cpp

@@ -44,7 +44,7 @@ Trade::MeshData2D Circle::solid(UnsignedInt segments) {
 
     /* Points on circle */
     const Rad angleIncrement(Constants::tau()/segments);
-    for(UnsignedInt i = 0; i != segments; ++i) {
+    for(UnsignedInt i = 0; i != segments+1; ++i) {
         const Rad angle(Float(i)*angleIncrement);
         positions.emplace_back(Math::cos(angle), Math::sin(angle));
     }