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

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
  31  *                                                                           *
  32  *                                                                           *
  33  *                                                                           *
  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #include <cstdlib>
  40 #include <cstdio>
  41
  42 #include "OSGConfig.h"
  43
  44 #include "OSGGL.h"
  45
  46 #include "OSGDirectionalLight.h"
  47 #include "OSGRenderAction.h"
  48
  49 #include "OSGStatCollector.h"
  50
  51 OSG_USING_NAMESPACE
  52
  53 // Documentation for this class is emited in the
  54 // OSGDirectionalLightBase.cpp file.
  55 // To modify it, please change the .fcd file (OSGDirectionalLight.fcd) and
  56 // regenerate the base file.
  57
  58 /*----------------------------- class variables ---------------------------*/
  59
  60 StatElemDesc<StatIntElem>  DirectionalLight::statNDirectionalLights(
  61     "NDirectionalLights",
  62     "number of directional light sources");
  63
  64
  65 /*-------------------------------------------------------------------------*/
  66 /*                                Set                                      */
  67
  68 void DirectionalLight::setDirection(Real32 rX, Real32 rY, Real32 rZ)
  69 {
  70     editSField(DirectionFieldMask);
  71
  72     _sfDirection.getValue().setValues(rX, rY, rZ);
  73 }
  74
  75 /*-------------------------------------------------------------------------*/
  76 /*                             Changed                                     */
  77
  78 void DirectionalLight::changed(ConstFieldMaskArg whichField,
  79                                UInt32            origin,
  80                                BitVector         details)
  81 {
  82     Inherited::changed(whichField, origin, details);
  83 }
  84
  85 /*-------------------------------------------------------------------------*/
  86 /*                             Chunk                                       */
  87
  88 void DirectionalLight::makeChunk(void)
  89 {
  90     Inherited::makeChunk();
  91
  92     Vec4f dir(_sfDirection.getValue());
  93
  94     dir[3] = 0.f;
  95
  96     _pChunk->setPosition(dir);
  97 }
  98
  99 /*-------------------------------------------------------------------------*/
 100 /*                           LightEngine                                   */
 101
 102 void DirectionalLight::callLightEngineEnter(RenderAction *ract)
 103 {
 104     if(getLightEngine() != NULL && getLightEngine()->getEnabled() == true)
 105     {
 106         getLightEngine()->runOnEnter(this, LightEngine::Directional, ract);
 107     }
 108 }
 109
 110 void DirectionalLight::callLightEngineLeave(RenderAction *ract)
 111 {
 112     if(getLightEngine() != NULL && getLightEngine()->getEnabled() == true)
 113     {
 114         getLightEngine()->runOnLeave(this, LightEngine::Directional, ract);
 115     }
 116 }
 117
 118 /*-------------------------------------------------------------------------*/
 119 /*                                Dump                                     */
 120
 121 void DirectionalLight::dump(      UInt32    uiIndent,
 122                             const BitVector bvFlags) const
 123 {
 124     Inherited::dump(uiIndent, bvFlags);
 125 }
 126
 127 /*-------------------------------------------------------------------------*/
 128 /*                            Constructors                                 */
 129
 130 DirectionalLight::DirectionalLight(void) :
 131     Inherited()
 132 {
 133 }
 134
 135 DirectionalLight::DirectionalLight(const DirectionalLight &source) :
 136     Inherited(source)
 137 {
 138 }
 139
 140 /*-------------------------------------------------------------------------*/
 141 /*                             Destructor                                  */
 142
 143 DirectionalLight::~DirectionalLight(void)
 144 {
 145 }
 146
 147 /*-------------------------------------------------------------------------*/
 148 /*                             Rendering                                   */
 149
 150 Action::ResultE DirectionalLight::renderEnter(Action *action)
 151 {
 152     RenderAction *a = dynamic_cast<RenderAction *>(action);
 153
 154     return Inherited::renderEnter(LightEngine::Directional,
 155                                   DirectionalLight::statNDirectionalLights,
 156                                   a);
 157 }
 158
 159 Action::ResultE DirectionalLight::renderLeave(Action *action)
 160 {
 161     return Inherited::renderLeave(LightEngine::Directional, action);
 162 }
 163
 164 /*-------------------------------------------------------------------------*/
 165 /*                               Init                                      */
 166
 167 void DirectionalLight::initMethod(InitPhase ePhase)
 168 {
 169     Inherited::initMethod(ePhase);
 170
 171     if(ePhase == TypeObject::SystemPost)
 172     {
 173         RenderAction::registerEnterDefault(
 174             DirectionalLight::getClassType(),
 175             reinterpret_cast<Action::Callback>(
 176                 &DirectionalLight::renderEnter));
 177
 178         RenderAction::registerLeaveDefault(
 179             DirectionalLight::getClassType(),
 180             reinterpret_cast<Action::Callback>(
 181                 &DirectionalLight::renderLeave));
 182     }
 183 }