# Curved mesh with QuadraticBezier and Ribbon **URL:** \ **Category:** Questions\ **Created:** [June 14, 2020, 7:14pm UTC](https://forum.babylonjs.com/t/curved-mesh-with-quadraticbezier-and-ribbon/11698 "2020-06-14T19:14:28Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![TechDreamer2](https://avatars.discourse-cdn.com/v4/letter/t/41988e/32.png) [@TechDreamer2](https://forum.babylonjs.com/u/TechDreamer2)\ **Post date:** [June 14, 2020, 7:14pm UTC](https://forum.babylonjs.com/t/curved-mesh-with-quadraticbezier-and-ribbon/11698/1 "2020-06-14T19:14:28Z")
Hello, I’d like to render a curved ribbon from the paths defined by two QuadraticBezier. In this example ([https://playground.babylonjs.com/#LTII1Y#1](https://playground.babylonjs.com/#LTII1Y#1)) I get an error when creating the quadratic bezier: “Cannot read property ‘length’ of undefined” Interestingly if I comment out the ribbon code and just render the quadratic bezier curve I get the rendering working without error. What do I miss? Thx, P ---
**Author:** ![JohnK](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johnk/32/26764_2.png) [@JohnK](https://forum.babylonjs.com/u/JohnK)\ **Post date:** [June 14, 2020, 7:29pm UTC](https://forum.babylonjs.com/t/curved-mesh-with-quadraticbezier-and-ribbon/11698/2 "2020-06-14T19:29:23Z")
When you are creating mesh you are using Mesh method with MeshBuilder parameters. Use BABYLON.MeshBuilder.CreateRibbon( ---
**Author:** ![TechDreamer2](https://avatars.discourse-cdn.com/v4/letter/t/41988e/32.png) [@TechDreamer2](https://forum.babylonjs.com/u/TechDreamer2)\ **Post date:** [June 14, 2020, 7:39pm UTC](https://forum.babylonjs.com/t/curved-mesh-with-quadraticbezier-and-ribbon/11698/3 "2020-06-14T19:39:05Z")
Thank you. I fixed it in [https://playground.babylonjs.com/#LTII1Y#3](https://playground.babylonjs.com/#LTII1Y#3) for future reference