Phys constraintsystem: Difference between revisions
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{{base_point}} If you have a collection of objects connected by [[:Category:Constraints|constraints]], | {{base_point}} If you have a collection of objects connected by [[:Category:Constraints|constraints]], you may encounter vibration or jiggling. This is because each constraint is solved without regard for any others until you introduce a '''phys_constraintsystem'''. | ||
To | To implement a phys_constraintsystem create one and give it a name, then select the constraints you want to group together and set it as their "Constraint System Manager". | ||
A constraintsystem also allows you to control the number of iterations performed on the constraints, allowing you to allocate more CPU to get the solution tighter. This will help when objects of dissimilar mass are connected, as if a large-mass object is in violation of the constraint it will take more iterations for it to move to a non-violating position/orientation. [[Ragdoll]]s create a constraint system internally to solve these issues. | |||
== Keyvalues == | == Keyvalues == | ||
Revision as of 09:14, 21 June 2009
Template:Base point If you have a collection of objects connected by constraints, you may encounter vibration or jiggling. This is because each constraint is solved without regard for any others until you introduce a phys_constraintsystem.
To implement a phys_constraintsystem create one and give it a name, then select the constraints you want to group together and set it as their "Constraint System Manager".
A constraintsystem also allows you to control the number of iterations performed on the constraints, allowing you to allocate more CPU to get the solution tighter. This will help when objects of dissimilar mass are connected, as if a large-mass object is in violation of the constraint it will take more iterations for it to move to a non-violating position/orientation. Ragdolls create a constraint system internally to solve these issues.
Keyvalues
- additionaliterations <int>
- Adding iterations makes the interactions among constraints in a system tighter. It will not compensate for errors due to collision, but will help in cases where objects of disparate mass are constrained to each other.
- Name (targetname) <string>[ Edit ]
- The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g.
parentnameortarget).
Also displayed in Hammer's 2D views and Entity Report.See also: Generic Keyvalues, Inputs and Outputs available to all entities