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When force was applied to a rigid body in a Physics World, a spin was observed.
This is because the rigid body always has an affinity towards the world axis.
A new rigid body property, called axisAffinity, has been added. The value of the axisAffinity
property is true by default. The affinity towards the world axis is compensated by setting the
property to false. When you set the property to false, the spin is not observed.
The computations are more when axisAffinity is false; set the property to false only when
required.
Sample code snippet
aball = pDynamiks.createRigidBody(ball.name,ball.name,#sphere,#dynamic)
aball.mass=1000
aball.sleepThreshold = 100
aball.friction= 1
aball.restitution = 0
aball.axisAffinity = false -
Physics Xtra throws an error when the value for the timestep and substep parameters is zero
in the Automatic time step mode.
This is a valid value for automatic time step and no error is thrown when you specify a value of
zero. However, zero values for timestep and substep are invalid for other modes and the error
will be shown. -
Downloading a new version of the custom Xtra did not replace the previous version after the
user closed the browser
When a user plays a Shockwave movie that requires the latest version of a custom Xtra, the
custom Xtra is downloaded to the users computer in the same location as the previous version
of the Xtra. The new Xtra is placed in a folder named New. This happens only when a previous
version of the custom Xtra exists on the computer.
When the user closes the browser, the new version should replace the previous custom Xtra and
the New folder should get deleted. This was not happening and has been fixed now.
The new custom Xtra replaces the previous version when:- The user closes the browser.
- The Shockwave player is opened in a new instance of the browser. This happens, if for some
reason, the Shockwave player did not unload the new Custom Xtra when the user closed the
browser.
rayCastAll method in Physics(Dynamiks xtra) takes an optional parameter for sorting the returned list.
Usage:
<list> world.rayCastAll(vector origin,vector direction,[[#sorted:#distance]])
Description
This method returns references of all the rigid bodies or terrains that are found along the ray from the
specified origin and specified direction. The method also returns the point of contact, contact normal,
and the distance from the origin of the ray.
Parameters
parameter Description
Origin Required. Vector that specifies the origin of the
raycast
direction Required. Vector that specifies the direction of
the raycast.
[#sorted:#distance] Optional list. Specifies that the returned list
should be sorted on distance
Return parameter
This method returns a list containing a list having the following information:
- Rigid body / Terrain reference
- Contact Point
- Contact Normal
- Distance of the rigid body or terrain, from the origin of the ray.
Example:
- Lingo Syntax
lstraycast = member("PhysicsWorld").rayCastAll (vector(10,0,0),vector(0,0,1)) - Returns an unsorted list containing the above parameters
put lstraycast
lstraycast = member("PhysicsWorld").rayCastAll (vector(10,0,0),vector(0,0,1),[#sorted:#distance]) - Returns an sorted list containing the above parameters
put lstraycast
//JavaScript Syntax
var lstraycast = member("PhysicsWorld").rayCastAll (vector(10,0,0),vector(0,0,1)); - Returns an unsorted list containing the above parameters
put(lstraycast);
lstraycast = member("PhysicsWorld").rayCastAll (vector(10,0,0),vector(0,0,1),
propList(symbol("sorted"),symbol("distance")));
//Returns an sorted list containing the above parameters
put(lstraycast);
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