Add a Collision Hull to a Static Mesh Using the Auto Convex Collision Tool

Product documentation including reference and guides for Unreal Engine 4


In the following How-To we will take a look at using the Auto Convex Collision tool to automatically create collision for Static Meshes.

The Auto Convex Tool also uses a newer version of V-HACD library that should give more accurate results.


  1. First open up the Static Mesh you want to add collision to in the Static Meshes Editor. For this example we will be using the SM_Rock Mesh that comes with the Starter Content. 

  2. Next, open up the Auto Convex Collision tool by going to Window > Auto Convex Collision. This will open up the Auto Convex Collision in the lower right hand corner of the Static Mesh Editor.

  3. Inside of the Auto Convex Collision tool set the following parameters with the following settings:

    Property Name


    Hull Count


    Max Hull Verts


    Hull Precision


  4. When all of the above setting have been input, click the Apply button to begin the collision creation process.

    Computation of the collison will now run as background task in the Static Mesh Editor. The progress of the collision creation will be shown in the following progress window.

End Result

When completed you can view the new collision,if not already enabled, by clicking on the Collision icon and then selecting the Simple Collision option from the drop down list. 



The following image sequence shows what type of results you get when increasing the values of the Auto Convex Collision from the default settings to the maximum settings allowed.

Auto Convex Collision Settings Results

새로운 언리얼 엔진 4 문서 사이트에 오신 것을 환영합니다!

문서 사이트에 대한 의견을 모을 수 있는 피드백 시스템을 포함해서 여러가지 새로운 기능을 준비하고 있습니다. 아래 Documentation Feedback 포럼(영문) 또는 언리얼 엔진 네이버 공식 카페(한글) 중 편하신 곳에 의견이나 문제점을 알려 주세요.

새 시스템이 준비되면 알려 드리겠습니다.

네이버 카페
공식 포럼