Table 6.114 — DRM_Infinite_Light

Property

Description

Class

  • <DRM Infinite Light>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class is a <DRM Light Source> instance that is considered to be located infinitely far away. It illuminates uniformly along a particular direction. Colour and control are inherited from the <DRM Light Source> class. A <DRM Infinite Light> instance has no bounds of influence and so affects all components of any <DRM Aggregate Geometry> instance that references it.

Class diagram

Figure 6.138 — DRM_Infinite_Light

Inherited field elements

Field name

Range

Field data type

apply_to_children

 

Boolean

override_positional_lights

 

Boolean

override_infinite_lights

 

Boolean

active_light_value

 

Boolean

Field elements

Field name

Range

Field data type

None

   

Default field values

Default field values for DRM_Infinite_Light

Associated to (one-way) (inherited)

  • None.

Associated to (one-way)

  • None.

Associated by (one-way) (inherited)

  • None.

Associated by (one-way)

  • None.

Associated with (two-way) (inherited)

  • None.

Associated with (two-way)

  • None.

Composed of (two-way) (inherited)

Composed of (two-way)

Composed of (two-way metadata) (inherited)

  • None.

Composed of (two-way metadata)

  • None.

Component of (two-way) (inherited)

Component of (two-way)

  • None.

Constraints

Clarifications

1A <DRM Classification Data> component, if present, allows a data provider to specify whether the <DRM Light Source> instance represents an environmental object, such as the sun.

2If a <DRM Light Source> instance is to be turned on and off dynamically, it has a <DRM Light Source Control Link> component to express that control mechanism.

3The <DRM Reference Vector> component specifies the direction of light source illumination and its vector_type = LIGHT_DIRECTION.

Example(s)