$collisionmodel

The QC command $collisionmodel is used to setup the physbox, collision hull, or collision model.

Note:Jointed collision models use $collisionjoints instead of $collisionmodel.

• See also NPC Hull.
• See also Physics and Ragdolls.

Example Syntax

$collisionmodel "tree_deciduous_01a_physbox.smd"
{
    $mass 350.0
    $concave
}

• Straight after $collisionmodel you specify the name of the .SMD to use as a collision model.
• You should always create an efficient _physbox.smd rather than just using the _reference.smd as a collision model.

Options

$mass <kilograms>

Manually set the mass, in kilograms, of the model.

• This is applicable when the object is a physics prop, rather than simply a static prop. Make certain to set this correctly, otherwise your object will behave unrealistically.

$automass

Automatically compute the mass of the model.

• Derived from the density/thickness of the material defined by $surfaceprop and/or prop_data and the volume of the $collisionmodel itself.

$masscenter <X Y Z offset?>

Override the center of mass, in local coords.

$inertia <scale?>

Inertia scale.

$damping <scale?>

Linear damping scale.

$rotdamping <scale?>

Rotational damping scale.

$drag <scale?>

Scales the air resistance.

$concave

The vphysics collision model is made up of individual separate convex hulls (separate pieces), and not just one big hull.

• If not set, it'll make a single convex hull out of whatever geometry you give it.