llSetPhysicsMaterial

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/LSL

SetPhysicsMaterial

llSetPhysicsMaterial

Summary

Function: llSetPhysicsMaterial( integer material_bits, float gravity_multiplier, float restitution, float friction, float density );

?	Function ID
	Forced Delay
	Energy

Used to set the physical characteristics of an object.

• integer	material_bits
• float	gravity_multiplier	–	range [-1.0, +28.0], default: 1.0
• float	restitution	–	range [0.0, 1.0], default: [0.3, 0.9] [1]
• float	friction	–	range [0.0, 255.0], default: [0.2, 0.9][1]
• float	density	–	range [1.0, 22587.0] kg/m^3, default: 1000.0

The default values for friction and restitution depend upon the material type.

mask Flags	V	Description
DENSITY	1	Indicates that density parameter is enabled and will override the previous value.
FRICTION	2	Indicates that friction parameter is enabled and will override the previous value.
RESTITUTION	4	Indicates that restitution parameter is enabled and will override the previous value.
GRAVITY_MULTIPLIER	8	Indicates that gravity_multiplier parameter is enabled and will override the previous value.

Caveats

• A collision between two objects with restitution 1.0 will still not be perfectly elastic due to damping in the physics engine.

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Examples

See Also

Functions

•

llGetPhysicsMaterial

Deep Notes

History

• Content taken from Release Notes/Second Life Server/11#11.09.23.241511
• Documentation expanded with information from Physics Material Settings test.

Content taken from Release Notes/Second Life Server/11#11.09.23.241511

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Footnotes

1. ^ The default values for friction and restitution depend upon the prim's material.
2. ^ The ranges in this article are written in Interval Notation.

Signature

function void llSetPhysicsMaterial( integer material_bits, float gravity_multiplier, float restitution, float friction, float density ); integer DENSITY = 1;//range 1.0 to 22587.0 (in kg/m^3), default: 1000.0 integer FRICTION = 2;//range 0.0 to 255.0, default values are in the range 0.2 to 0.9 integer RESTITUTION = 4;//range 0.0 to 1.0, default values are in the range 0.3 to 0.9 (note, a collision between two objects with restitution 1.0 will still not be perfectly elastic due to damping in the physics engine) integer GRAVITY_MULTIPLIER = 8;//range -1.0 to +28.0, default: 1.0