PxTolerancesScale Class Reference
[Common]

Class to define the scale at which simulation runs. Most simulation tolerances are calculated in terms of the values here. More...

#include <PxTolerancesScale.h>

List of all members.

Public Member Functions
PX_INLINE	PxTolerancesScale ()
	constructor sets to default
PX_INLINE bool	isValid () const
	Returns true if the descriptor is valid.
Public Attributes
PxReal	length
PX_DEPRECATED PxReal	mass
PxReal	speed

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Detailed Description

Class to define the scale at which simulation runs. Most simulation tolerances are calculated in terms of the values here.

Note:

if you change the simulation scale, you will probablly also wish to change the scene's default value of gravity, and stable simulation will probably require changes to the scene's bounceThreshold also.

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Member Data Documentation

PxReal PxTolerancesScale::length

brief The approximate size of objects in the simulation.

For simulating roughly human-sized in metric units, 1 is a good choice. If simulation is done in centimetres, use 100 instead. This is used to estimate certain length-related tolerances.

Referenced by isValid(), PxJointLinearLimit::PxJointLinearLimit(), and PxJointLinearLimitPair::PxJointLinearLimitPair().

PX_DEPRECATED PxReal PxTolerancesScale::mass

brief The approximate mass of a length * length * length block. If using metric scale for character sized objects and measuring mass in kilogrammes, 1000 is a good choice.

Note:

This parameter is ignored by the PhysX SDK.

Referenced by isValid().

PxReal PxTolerancesScale::speed

brief The typical magnitude of velocities of objects in simulation. This is used to estimate whether a contact should be treated as bouncing or resting based on its impact velocity, and a kinetic energy threshold below which the simulation may put objects to sleep.

For normal physical environments, a good choice is the approximate speed of an object falling under gravity for one second.

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The documentation for this class was generated from the following file:

• PxTolerancesScale.h