Source/System/NodeCores/Groups/Light/OSGSpotLight.fcd

   1 <?xml version="1.0" ?>
   2
   3 <FieldContainer
   4    name="SpotLight"
   5    parent="PointLight"
   6    library="Group"
   7    structure="concrete"
   8    pointerfieldtypes="none"
   9    systemcomponent="true"
  10    parentsystemcomponent="true"
  11    isNodeCore="true"
  12    docGroupBase="GrpGroupLight"
  13    >
  14   SpotLight is a located lightsource. The position of the light source
  15   (in the beacon's coordinate system) is defined by the \c position
  16   attribute, its direction by the \c direction attribute. The spot has an
  17   exponential fallof, controlled by the \c spotExponent attribute and a
  18   maximum opening angle, defined by the \c spotCutOff attribute.
  19   The influence of the light diminishes with distance, controlled
  20   by the \c constantAttenuation, \c linearAttenuation and \c
  21   quadraticAttenuation attributes.
  22   <Field
  23      name="direction"
  24      type="Vec3f"
  25      cardinality="single"
  26      visibility="external"
  27      defaultValue="0.f,0.f,1.f"
  28      >
  29   </Field>
  30   <Field
  31      name="spotExponent"
  32      type="Real32"
  33      cardinality="single"
  34      visibility="external"
  35      defaultValue="0.1f"
  36      >
  37     The drop-off exponent of the spotlight.
  38   </Field>
  39   <Field
  40      name="spotCutOff"
  41      type="Real32"
  42      cardinality="single"
  43      visibility="external"
  44      defaultValue="1.0472f"
  45      >
  46     The cut-off angle of the spotlight (in radians, not degrees!).
  47   </Field>
  48 </FieldContainer>