Collision for 3D Modell

Hello,

I’m trying to create a chair for a new addon but the collisions are weird.

Edit: I am standing on the chair in that picture

This is my qc file:



$scale 0.4
$modelname	"project/chair.mdl"
$staticprop
$body chair "chair.smd"
$collisionmodel "chair.smd" {
 $concave
}
$surfaceprop "Wood_Furniture" 
$contents "solid" 
$cdmaterials "project"


Am I doing something wrong?

Read on the $concave flag description please: