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The <particle_system_obstacle> node

Function

The particle_system_obstacle node specifies the type of obstacle for the flow of particles. An obstacle is an object which makes it possible to change the trajectory of a particle.

The image below, resulting from a Hyperion tutorial HyperGraph 29 shows a POINT type emitter associated with 1 GRAVITY type action and 2 PLANE type obstacles:



General syntax

<particle_system_obstacle />
Noeud exhaustif avec attributs et valeurs par défaut:
<particle_system_obstacle
	name=""
	master_object=""
	type="PLANE"
	bounce="0.3"
	friction="0.4" />

particle_system_obstacle element

particle_system_obstacle is the xml tag that defines a particle_system_obstacle node.

Attributes:
  • name - [STR127] - name of the node. This name will make it possible to refer this node throughout the XML script.

  • master_object - [STR127] - specifies the object which controls the basic shape of the obstacle.

  • type - [ENUM] - obstacle type:
    • SPHERE
    • PLANE
    • DISC
    type specifies the emitter type, i.e. its basic shape (plan, sphere, disc, etc...). This instruction goes hand in hand with the particle_system_obstacle_master_object insruction: indeed, the characteristics of each type of obstacle (position, radius, length, etc...) are initialized by the node describing the object (called in this context the master-object): please see the primitive node for more information.

  • bounce - [REAL] - specifies the rebound coefficient of the obstacle surface - default value: 0.3

  • friction - [REAL] - specifies the adherence (or friction) factor on the obstacle surface - default value: 0.5


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