OpenCS: lighting modes

apps/opencs/view/render/lighting.cpp

@@ -1,4 +1,5 @@
-
 #include "lighting.hpp"
 
+#include <osg/LightSource>
+
 CSVRender::Lighting::~Lighting() {}

apps/opencs/view/render/lighting.hpp

@@ -1,13 +1,13 @@
 #ifndef OPENCS_VIEW_LIGHTING_H
 #define OPENCS_VIEW_LIGHTING_H
 
-namespace osgViewer
-{
-    class View;
-}
+#include <osg/ref_ptr>
+
 namespace osg
 {
     class Vec4f;
+    class LightSource;
+    class Group;
 }
 
 namespace CSVRender
@@ -16,14 +16,19 @@ namespace CSVRender
     {
         public:
 
+            Lighting() : mRootNode(0) {}
             virtual ~Lighting();
 
-            virtual void activate (osgViewer::View* view,
-                const osg::Vec4f *defaultAmbient = 0) = 0;
+            virtual void activate (osg::Group* rootNode) = 0;
 
             virtual void deactivate() = 0;
 
-            virtual void setDefaultAmbient (const osg::Vec4f& colour) = 0;
+            virtual osg::Vec4f getAmbientColour(osg::Vec4f* defaultAmbient) = 0;
+
+        protected:
+
+            osg::ref_ptr<osg::LightSource> mLightSource;
+            osg::Group* mRootNode;
     };
 }
 

apps/opencs/view/render/lightingbright.cpp

@@ -1,30 +1,35 @@
 
 #include "lightingbright.hpp"
 
-#include <OgreSceneManager.h>
+#include <osg/LightSource>
 
-#include <osgViewer/View>
+CSVRender::LightingBright::LightingBright() {}
 
-CSVRender::LightingBright::LightingBright() : mView(NULL) {}
-
-void CSVRender::LightingBright::activate (osgViewer::View* view,
- const osg::Vec4f* /*defaultAmbient*/)
+void CSVRender::LightingBright::activate (osg::Group* rootNode)
 {
-    mView = view;
+    mRootNode = rootNode;
 
-    // FIXME: ambient should be applied to LightModel instead of the light
+    mLightSource = (new osg::LightSource);
 
     osg::ref_ptr<osg::Light> light (new osg::Light);
-    light->setConstantAttenuation(1.f);
+    light->setAmbient(osg::Vec4f(0.f, 0.f, 0.f, 1.f));
     light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
     light->setDiffuse(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
-    light->setAmbient(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
+    light->setSpecular(osg::Vec4f(0.f, 0.f, 0.f, 0.f));
+    light->setConstantAttenuation(1.f);
 
-    mView->setLight(light);
+    mLightSource->setLight(light);
+
+    mRootNode->addChild(mLightSource);
 }
 
 void CSVRender::LightingBright::deactivate()
 {
+    if (mRootNode && mLightSource.get())
+        mRootNode->removeChild(mLightSource);
 }
 
-void CSVRender::LightingBright::setDefaultAmbient (const osg::Vec4f& colour) {}
+osg::Vec4f CSVRender::LightingBright::getAmbientColour(osg::Vec4f* /*defaultAmbient*/)
+{
+    return osg::Vec4f(1.f, 1.f, 1.f, 1.f);
+}

apps/opencs/view/render/lightingbright.hpp

@@ -3,27 +3,25 @@
 
 #include "lighting.hpp"
 
-namespace Ogre
+namespace osg
 {
     class Light;
+    class Group;
 }
 
 namespace CSVRender
 {
     class LightingBright : public Lighting
     {
-            osgViewer::View* mView;
-
         public:
 
             LightingBright();
 
-            virtual void activate (osgViewer::View* view,
-                const osg::Vec4f *defaultAmbient = 0);
+            virtual void activate (osg::Group* rootNode);
 
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const osg::Vec4f& colour);
+            virtual osg::Vec4f getAmbientColour(osg::Vec4f* defaultAmbient);
     };
 }
 

apps/opencs/view/render/lightingday.cpp

@@ -1,33 +1,36 @@
 #include "lightingday.hpp"
 
-#include <osgViewer/View>
+#include <osg/LightSource>
 
-CSVRender::LightingDay::LightingDay() : mView(NULL) {}
+CSVRender::LightingDay::LightingDay(){}
 
-void CSVRender::LightingDay::activate (osgViewer::View* view,
-                                       const osg::Vec4f *defaultAmbient)
+void CSVRender::LightingDay::activate (osg::Group* rootNode)
 {
-    mView = view;
+    mRootNode = rootNode;
+
+    mLightSource = new osg::LightSource;
 
     osg::ref_ptr<osg::Light> light (new osg::Light);
     light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
+    light->setAmbient(osg::Vec4f(0.f, 0.f, 0.f, 1.f));
     light->setDiffuse(osg::Vec4f(1.f, 1.f, 1.f, 1.f));
+    light->setSpecular(osg::Vec4f(0.f, 0.f, 0.f, 0.f));
     light->setConstantAttenuation(1.f);
 
-    if (defaultAmbient)
-        light->setAmbient(*defaultAmbient);
-    else
-        light->setAmbient(osg::Vec4f(0.7f, 0.7f, 0.7f, 1.f));
-
-    mView->setLight(light);
+    mLightSource->setLight(light);
+    mRootNode->addChild(mLightSource);
 }
 
 void CSVRender::LightingDay::deactivate()
 {
+    if (mRootNode && mLightSource.get())
+        mRootNode->removeChild(mLightSource);
 }
 
-void CSVRender::LightingDay::setDefaultAmbient (const osg::Vec4f& colour)
+osg::Vec4f CSVRender::LightingDay::getAmbientColour(osg::Vec4f *defaultAmbient)
 {
-    if (mView)
-        mView->getLight()->setAmbient(colour);
+    if (defaultAmbient)
+        return *defaultAmbient;
+    else
+        return osg::Vec4f(0.7f, 0.7f, 0.7f, 1.f);
 }

apps/opencs/view/render/lightingday.hpp

@@ -12,18 +12,15 @@ namespace CSVRender
 {
     class LightingDay : public Lighting
     {
-            osgViewer::View* mView;
-
         public:
 
             LightingDay();
 
-            virtual void activate (osgViewer::View* view,
-                const osg::Vec4f *defaultAmbient = 0);
+            virtual void activate (osg::Group* rootNode);
 
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const osg::Vec4f& colour);
+            virtual osg::Vec4f getAmbientColour(osg::Vec4f *defaultAmbient);
     };
 }
 

apps/opencs/view/render/lightingnight.cpp

@@ -1,33 +1,37 @@
 #include "lightingnight.hpp"
 
-#include <osgViewer/View>
+#include <osg/LightSource>
 
-CSVRender::LightingNight::LightingNight() : mView(NULL) {}
+CSVRender::LightingNight::LightingNight() {}
 
-void CSVRender::LightingNight::activate (osgViewer::View* view,
-                                         const osg::Vec4f *defaultAmbient)
+void CSVRender::LightingNight::activate (osg::Group* rootNode)
 {
-    mView = view;
+    mRootNode = rootNode;
+
+    mLightSource = new osg::LightSource;
 
     osg::ref_ptr<osg::Light> light (new osg::Light);
     light->setDirection(osg::Vec3f(0.f, 0.f, -1.f));
+    light->setAmbient(osg::Vec4f(0.f, 0.f, 0.f, 1.f));
     light->setDiffuse(osg::Vec4f(0.2f, 0.2f, 0.2f, 1.f));
+    light->setSpecular(osg::Vec4f(0.f, 0.f, 0.f, 0.f));
     light->setConstantAttenuation(1.f);
 
-    if (defaultAmbient)
-        light->setAmbient(*defaultAmbient);
-    else
-        light->setAmbient(osg::Vec4f(0.2f, 0.2f, 0.2f, 1.f));
+    mLightSource->setLight(light);
 
-    mView->setLight(light);
+    mRootNode->addChild(mLightSource);
 }
 
 void CSVRender::LightingNight::deactivate()
 {
+    if (mRootNode && mLightSource.get())
+        mRootNode->removeChild(mLightSource);
 }
 
-void CSVRender::LightingNight::setDefaultAmbient (const osg::Vec4f& colour)
+osg::Vec4f CSVRender::LightingNight::getAmbientColour(osg::Vec4f *defaultAmbient)
 {
-    if (mView)
-        mView->getLight()->setAmbient(colour);
+    if (defaultAmbient)
+        return *defaultAmbient;
+    else
+        return osg::Vec4f(0.2f, 0.2f, 0.2f, 1.f);
 }

apps/opencs/view/render/lightingnight.hpp

@@ -12,18 +12,14 @@ namespace CSVRender
 {
     class LightingNight : public Lighting
     {
-            osgViewer::View* mView;
-
         public:
 
             LightingNight();
 
-            virtual void activate (osgViewer::View* view,
-                const osg::Vec4f *defaultAmbient = 0);
-
+            virtual void activate (osg::Group* rootNode);
             virtual void deactivate();
 
-            virtual void setDefaultAmbient (const osg::Vec4f& colour);
+            virtual osg::Vec4f getAmbientColour(osg::Vec4f *defaultAmbient);
     };
 }
 

apps/opencs/view/render/scenewidget.cpp

@@ -10,6 +10,8 @@
 #include <osg/GraphicsContext>
 #include <osgViewer/CompositeViewer>
 #include <osgViewer/ViewerEventHandlers>
+#include <osg/LightModel>
+#include <osg/io_utils>
 
 #include <components/resource/scenemanager.hpp>
 
@@ -61,7 +63,8 @@ RenderWidget::RenderWidget(QWidget *parent, Qt::WindowFlags f)
 
     mRootNode = new osg::Group;
 
-    addDefaultRootState(mRootNode->getOrCreateStateSet());
+    mView->getCamera()->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
+    mView->getCamera()->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
 
     mView->setSceneData(mRootNode);
 
@@ -75,12 +78,6 @@ RenderWidget::RenderWidget(QWidget *parent, Qt::WindowFlags f)
     viewer.realize();
 }
 
-void RenderWidget::addDefaultRootState(osg::StateSet* stateset)
-{
-    stateset->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
-    stateset->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
-}
-
 RenderWidget::~RenderWidget()
 {
     CompositeViewer::get().removeView(mView);
@@ -138,8 +135,10 @@ SceneWidget::SceneWidget(Resource::SceneManager* sceneManager, QWidget *parent,
     : RenderWidget(parent, f)
     , mSceneManager(sceneManager)
     , mLighting(NULL)
+    , mHasDefaultAmbient(false)
 {
-    //mView->setLightingMode(osgViewer::View::NO_LIGHT);
+    // we handle lighting manually
+    mView->setLightingMode(osgViewer::View::NO_LIGHT);
 
     setLighting(&mLightingDay);
 }
@@ -156,11 +155,25 @@ void SceneWidget::setLighting(Lighting *lighting)
         mLighting->deactivate();
 
     mLighting = lighting;
-    mLighting->activate (mView.get(), mHasDefaultAmbient ? &mDefaultAmbient : 0);
+    mLighting->activate (mRootNode);
+
+    osg::Vec4f ambient = mLighting->getAmbientColour(mHasDefaultAmbient ? &mDefaultAmbient : 0);
+    setAmbient(ambient);
 
     flagAsModified();
 }
 
+void SceneWidget::setAmbient(const osg::Vec4f& ambient)
+{
+    osg::ref_ptr<osg::StateSet> stateset = new osg::StateSet;
+    osg::ref_ptr<osg::LightModel> lightmodel = new osg::LightModel;
+    lightmodel->setAmbientIntensity(ambient);
+    stateset->setMode(GL_LIGHTING, osg::StateAttribute::ON);
+    stateset->setMode(GL_LIGHT0, osg::StateAttribute::ON);
+    stateset->setAttributeAndModes(lightmodel, osg::StateAttribute::ON);
+    mRootNode->setStateSet(stateset);
+}
+
 void SceneWidget::selectLightingMode (const std::string& mode)
 {
     if (mode=="day")
@@ -204,8 +217,7 @@ void SceneWidget::setDefaultAmbient (const osg::Vec4f& colour)
     mDefaultAmbient = colour;
     mHasDefaultAmbient = true;
 
-    if (mLighting)
-        mLighting->setDefaultAmbient (colour);
+    setAmbient(mLighting->getAmbientColour(&mDefaultAmbient));
 }
 
 }

apps/opencs/view/render/scenewidget.hpp

@@ -46,8 +46,6 @@ namespace CSVRender
 
     protected:
 
-        void addDefaultRootState(osg::StateSet* stateset);
-
         osg::ref_ptr<osgViewer::View> mView;
 
         osg::Group* mRootNode;
@@ -74,6 +72,8 @@ namespace CSVRender
         void setLighting (Lighting *lighting);
         ///< \attention The ownership of \a lighting is not transferred to *this.
 
+        void setAmbient(const osg::Vec4f& ambient);
+
         Resource::SceneManager* mSceneManager;
 
         Lighting* mLighting;