Rounded rectangles with radius values >= the rectangle's width and height are now clamped rather than causing an error.

src/modules/graphics/opengl/Graphics.cpp

@@ -1137,6 +1137,13 @@ void Graphics::rectangle(DrawMode mode, float x, float y, float w, float h, floa
 		return;
 	}
 
+	// Radius values that are more than half the rectangle's size aren't handled
+	// correctly (for now)...
+	if (w >= 0.02f)
+		rx = std::min(rx, w / 2.0f - 0.01f);
+	if (h >= 0.02f)
+		ry = std::min(ry, h / 2.0f - 0.01f);
+
 	points = std::max(points, 1);
 
 	const float half_pi = static_cast<float>(LOVE_M_PI / 2);

src/modules/graphics/opengl/wrap_Graphics.cpp

@@ -1592,11 +1592,6 @@ int w_rectangle(lua_State *L)
 	float rx = (float)luaL_optnumber(L, 6, 0.0);
 	float ry = (float)luaL_optnumber(L, 7, rx);
 
-	if (w > 0.0 && rx >= w / 2.0)
-		return luaL_error(L, "Invalid rectangle x-axis radius (must be less than half the width)");
-	if (h > 0.0 && ry >= h / 2.0)
-		return luaL_error(L, "Invalid rectangle y-axis radius (must be less than half the height)");
-
 	int points;
 	if (lua_isnoneornil(L, 8))
 		points = std::max(rx, ry) > 20.0 ? (int)(std::max(rx, ry) / 2) : 10;