Source/System/NodeCores/Groups/Light/OSGPointLight.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
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   5  *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
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  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #include <cstdlib>
  40 #include <cstdio>
  41
  42 #include "OSGConfig.h"
  43
  44 #include "OSGGL.h"
  45
  46 #include "OSGRenderAction.h"
  47 #include "OSGPointLight.h"
  48
  49 #include "OSGStatCollector.h"
  50
  51 OSG_USING_NAMESPACE
  52
  53 // Documentation for this class is emited in the
  54 // OSGPointLightBase.cpp file.
  55 // To modify it, please change the .fcd file (OSGPointLight.fcd) and
  56 // regenerate the base file.
  57
  58 /*----------------------------- class variables ---------------------------*/
  59
  60 StatElemDesc<StatIntElem>  PointLight::statNPointLights(
  61     "NPointLights",
  62     "number of point light sources");
  63
  64 /*-------------------------------------------------------------------------*/
  65 /*                                Set                                      */
  66
  67 void PointLight::setPosition(Real32 rX, Real32 rY, Real32 rZ)
  68 {
  69     editSField(PositionFieldMask);
  70
  71     _sfPosition.getValue().setValues(rX, rY, rZ);
  72 }
  73
  74 void PointLight::setAttenuation(Real32 rConstant,
  75                                 Real32 rLinear,
  76                                 Real32 rQuadratic)
  77 {
  78     editSField(ConstantAttenuationFieldMask );
  79     editSField(LinearAttenuationFieldMask   );
  80     editSField(QuadraticAttenuationFieldMask);
  81
  82     _sfConstantAttenuation .setValue(rConstant );
  83     _sfLinearAttenuation   .setValue(rLinear   );
  84     _sfQuadraticAttenuation.setValue(rQuadratic);
  85 }
  86
  87 /*-------------------------------------------------------------------------*/
  88 /*                             Chunk                                       */
  89
  90 void PointLight::makeChunk(void)
  91 {
  92     Inherited::makeChunk();
  93
  94     Vec4f pos(_sfPosition.getValue());
  95
  96     pos[3] = 1.f;
  97
  98     _pChunk->setPosition            (pos                      );
  99     _pChunk->setConstantAttenuation (getConstantAttenuation ());
 100     _pChunk->setLinearAttenuation   (getLinearAttenuation   ());
 101     _pChunk->setQuadraticAttenuation(getQuadraticAttenuation());
 102 }
 103
 104 /*-------------------------------------------------------------------------*/
 105 /*                             Changed                                     */
 106
 107 void PointLight::changed(ConstFieldMaskArg whichField,
 108                          UInt32            origin,
 109                          BitVector         details)
 110 {
 111     Inherited::changed(whichField, origin, details);
 112 }
 113
 114 /*-------------------------------------------------------------------------*/
 115 /*                                Dump                                     */
 116
 117 void PointLight::dump(      UInt32    uiIndent,
 118                       const BitVector bvFlags) const
 119 {
 120    Inherited::dump(uiIndent, bvFlags);
 121 }
 122
 123 /*-------------------------------------------------------------------------*/
 124 /*                           LightEngine                                   */
 125
 126 void PointLight::callLightEngineEnter(RenderAction *ract)
 127 {
 128     if(getLightEngine() != NULL && getLightEngine()->getEnabled() == true)
 129     {
 130         getLightEngine()->runOnEnter(this, LightEngine::Point, ract);
 131     }
 132 }
 133
 134 void PointLight::callLightEngineLeave(RenderAction *ract)
 135 {
 136     if(getLightEngine() != NULL && getLightEngine()->getEnabled() == true)
 137     {
 138         getLightEngine()->runOnLeave(this, LightEngine::Point, ract);
 139     }
 140 }
 141
 142 /*-------------------------------------------------------------------------*/
 143 /*                            Constructors                                 */
 144
 145 PointLight::PointLight(void) :
 146     Inherited()
 147 {
 148 }
 149
 150 PointLight::PointLight(const PointLight &source) :
 151     Inherited(source)
 152 {
 153 }
 154
 155 /*-------------------------------------------------------------------------*/
 156 /*                             Destructor                                  */
 157
 158 PointLight::~PointLight(void)
 159 {
 160 }
 161
 162 /*-------------------------------------------------------------------------*/
 163 /*                             Rendering                                   */
 164
 165 Action::ResultE PointLight::renderEnter(Action *action)
 166 {
 167     RenderAction *a = dynamic_cast<RenderAction *>(action);
 168
 169     return Inherited::renderEnter(LightEngine::Point,
 170                                   PointLight::statNPointLights,
 171                                   a);
 172 }
 173
 174 Action::ResultE PointLight::renderLeave(Action *action)
 175 {
 176     return Inherited::renderLeave(LightEngine::Point,
 177                                   action);
 178 }
 179
 180 /*-------------------------------------------------------------------------*/
 181 /*                               Init                                      */
 182
 183 void PointLight::initMethod(InitPhase ePhase)
 184 {
 185     Inherited::initMethod(ePhase);
 186
 187     if(ePhase == TypeObject::SystemPost)
 188     {
 189         RenderAction::registerEnterDefault(
 190             PointLight::getClassType(),
 191             reinterpret_cast<Action::Callback>(&PointLight::renderEnter));
 192
 193         RenderAction::registerLeaveDefault(
 194             PointLight::getClassType(),
 195             reinterpret_cast<Action::Callback>(&PointLight::renderLeave));
 196     }
 197 }
 198