Changeset 1840 for GTP/trunk/App/Demos/Geom

Timestamp:

12/01/06 19:01:08 (18 years ago)

Author:

gumbau

Message:

Added shadows to the terrain

Location:

GTP/trunk/App/Demos/Geom/Demo_LodTrees

Files:

• Demo_LodTrees.exe.lnk (modified) (previous)
• Demo_LodTrees.suo (modified) (previous)
• Demo_LodTrees.vcproj (modified) (6 diffs)
• build/Release/Demo_LodTrees.exe (modified) (previous)
• main.cpp (modified) (9 diffs)

GTP/trunk/App/Demos/Geom/Demo_LodTrees/Demo_LodTrees.vcproj

@@ -21 +21 @@
                                 Optimization="0"
                                 ImproveFloatingPointConsistency="TRUE"
-                                AdditionalIncludeDirectories="..\OgreStuff\include;..\..\..\..\Lib\Geom\shared\GTGeometry\include"
+                                AdditionalIncludeDirectories="..\OgreStuff\include;..\..\..\..\Lib\Geom\shared\GTGeometry\include;..\OgreStuff\include\opt"
                                 PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS"
                                 MinimalRebuild="TRUE"
@@ -35 +35 @@
                         <Tool
                                 Name="VCLinkerTool"
-                                AdditionalDependencies="OgreMain_d.lib GTGeometry_d.lib"
+                                AdditionalDependencies="OgreMain_d.lib GTGeometry_d.lib Plugin_OctreeSceneManager.lib"
                                 OutputFile="$(OutDir)/Demo_LodTrees.exe"
                                 LinkIncremental="2"
-                                AdditionalLibraryDirectories="..\OgreStuff\lib;..\..\..\..\Lib\Geom\shared\GTGeometry\build\Debug\"
+                                AdditionalLibraryDirectories="..\OgreStuff\lib;..\..\..\..\Lib\Geom\shared\GTGeometry\build\Debug\;..\OgreStuff\lib\opt\debug\"
                                 GenerateDebugInformation="TRUE"
                                 ProgramDatabaseFile="$(OutDir)/Demo_LodTrees.pdb"
@@ -48 +48 @@
                                 Name="VCPostBuildEventTool"
                                 CommandLine="xcopy /Y ..\OgreStuff\bin\Debug\*.dll build\Debug
-xcopy /Y ..\OgreStuff\bin\Debug\*.cfg build\Debug"/>
+xcopy /Y ..\OgreStuff\bin\Debug\*.cfg build\Debug
+"/>
                         <Tool
                                 Name="VCPreBuildEventTool"/>
@@ -74 +75 @@
                         <Tool
                                 Name="VCCLCompilerTool"
-                                AdditionalIncludeDirectories="..\OgreStuff\include;..\..\..\..\Lib\Geom\shared\GTGeometry\include"
+                                AdditionalIncludeDirectories="..\OgreStuff\include;..\..\..\..\Lib\Geom\shared\GTGeometry\include;..\OgreStuff\include\opt"
                                 PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS"
                                 RuntimeLibrary="4"
@@ -85 +86 @@
                         <Tool
                                 Name="VCLinkerTool"
-                                AdditionalDependencies="OgreMain.lib GTGeometry.lib"
+                                AdditionalDependencies="OgreMain.lib GTGeometry.lib Plugin_OctreeSceneManager.lib"
                                 OutputFile="$(OutDir)/Demo_LodTrees.exe"
                                 LinkIncremental="1"
-                                AdditionalLibraryDirectories="..\OgreStuff\lib;..\..\..\..\Lib\Geom\shared\GTGeometry\build\Release\"
+                                AdditionalLibraryDirectories="..\OgreStuff\lib;..\..\..\..\Lib\Geom\shared\GTGeometry\build\Release\;..\OgreStuff\lib\opt\debug\"
                                 IgnoreDefaultLibraryNames=""
                                 GenerateDebugInformation="TRUE"
@@ -100 +101 @@
                                 Name="VCPostBuildEventTool"
                                 CommandLine="xcopy /Y ..\OgreStuff\bin\Release\*.dll build\Release
-xcopy /Y ..\OgreStuff\bin\Release\*.cfg build\Release"/>
+xcopy /Y ..\OgreStuff\bin\Release\*.cfg build\Release
+"/>
                         <Tool
                                 Name="VCPreBuildEventTool"/>

GTP/trunk/App/Demos/Geom/Demo_LodTrees/main.cpp

@@ -21 +21 @@
 #define dist_max 800
 
+#define ENABLE_TERRAIN_SHADOWS
+#define TERRAIN_SHADOW_SIZE 2048
+
 //Global variables
 Geometry::GeoMeshLoader *meshloader=NULL;
@@ -35 +38 @@
 OverlayElement* mInfo2;
 OverlayElement* mHelp;
+Ogre::Light *theLight = NULL;
+Ogre::Viewport *shadowViewport = NULL;
+RenderTarget *render_target = NULL;
 
 char HelpString[]="(F1) Quit Help\n"
@@ -78 +84 @@
         bool frameStarted(const FrameEvent& evt)
     {
-                static bool firstFrame=true;
-                if (firstFrame)
-                {
-                        CalculateShadowMap();
-                        firstFrame=false;
-                }
-
                 // Move upto 80 units/second
                 Real MoveFactor = 120.0 * evt.timeSinceLastFrame;
@@ -133 +132 @@
                                 lodfactor=1.0f;
 
-                        if (fabsf(lodfactorBefore[i]-lodfactor)>0.1f)
+                        if (fabsf(lodfactorBefore[i]-lodfactor)>0.05f)
                         {
                                 lod_tree_types[i]->GoToLod(lodfactor);
@@ -216 +215 @@
                 return true;
     }
-
-        void CalculateShadowMap(void)
-        {
-        }
 };
 
@@ -253 +248 @@
 
 
-class LodTreeApplication : public ExampleApplication
+#include "OgreTerrainSceneManager.h" 
+
+class LodTreeApplication : public ExampleApplication, public RenderTargetListener
 {
 protected:
@@ -270 +267 @@
     void chooseSceneManager(void)
     {
-        // Get the SceneManager, in this case a generic one
-        //      mSceneMgr = mRoot->getSceneManager(Ogre::ST_EXTERIOR_CLOSE);
         mSceneMgr = mRoot->createSceneManager("TerrainSceneManager");
     }
+
+    // render target events
+    void preRenderTargetUpdate(const RenderTargetEvent& evt)
+    {
+                if (render_target)
+                {
+                        (static_cast<TerrainSceneManager*>(mSceneMgr))->getTerrainRootNode()->setVisible(false);
+                        mSceneMgr->setSkyBox(false, "Examples/CloudyNoonSkyBox");
+                        mSceneMgr->setFog(FOG_EXP, Ogre::ColourValue(0.5f,0.5f,0.5f), 1000 );
+                        mInfo2->hide();
+                }
+    }
+    void postRenderTargetUpdate(const RenderTargetEvent& evt)
+    {
+                if (render_target)
+                {
+                        (static_cast<TerrainSceneManager*>(mSceneMgr))->getTerrainRootNode()->setVisible(true);
+                        mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
+                        mSceneMgr->setFog( FOG_EXP, Ogre::ColourValue(0.4f,0.5f,0.6f), 0.001 );
+                        mInfo2->show();
+//                      render_target->removeAllListeners();
+//                      render_target->removeAllViewports();
+                        render_target->setAutoUpdated(false);
+                }
+        }
 
 
@@ -285 +305 @@
                 theCam->setNearClipDistance(0.1f);
 
-                mSceneMgr->setFog( FOG_EXP, Ogre::ColourValue(0.4f,0.5f,0.6f), 0.001 );
+//              mSceneMgr->setFog( FOG_EXP, Ogre::ColourValue(0.4f,0.5f,0.6f), 0.001 );
 
         // Create a directional light
-                Light* l = mSceneMgr->createLight("MainLight");
-                l->setType(Light::LT_DIRECTIONAL);
-        l->setDirection(0.1,-1.0,-0.2);
+                theLight = mSceneMgr->createLight("MainLight");
+                theLight->setType(Light::LT_DIRECTIONAL);
+        theLight->setDirection(0.1,-1.0,-0.2);          
         
                 // terrain
                 mSceneMgr->setWorldGeometry( "terrain.cfg" );
-
-       
+     
         mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
 
@@ -343 +362 @@
                 mInfo->setCaption("\nMaintain F2 to disable LOD");
 
+#ifdef ENABLE_TERRAIN_SHADOWS
+
                 // create the shadow texture
                 TexturePtr shadow_map = Ogre::TextureManager::getSingleton().createManual("TheShadowMap",
                         ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,TEX_TYPE_2D,
-                        256,256,0,PF_R8G8B8,TU_STATIC_WRITE_ONLY|TU_RENDERTARGET);
-
-/*              // en vez de crear la textura aqui se puee intentar cargar de fichero una y modificarla
+                        TERRAIN_SHADOW_SIZE,TERRAIN_SHADOW_SIZE,0,PF_R8G8B8,TU_RENDERTARGET);
+
                 HardwarePixelBufferSharedPtr shadowBuffer = shadow_map->getBuffer();
-                RenderTarget *render_target = shadowBuffer->getRenderTarget();*/
-
-                HardwarePixelBufferSharedPtr shadowBuffer = shadow_map->getBuffer();
-                RenderTarget *render_target = shadowBuffer->getRenderTarget();
-
-
-//              RenderTarget *rttTex = shadow_map->getBuffer()->getRenderTarget();
-//                      mSceneMgr->createCamera("lightCam");
-        
-
-
+                render_target = shadowBuffer->getRenderTarget();
+
+                Ogre::Camera *lightCam = mSceneMgr->createCamera("lightCam");
+                lightCam->setProjectionType(Ogre::PT_ORTHOGRAPHIC);
+                lightCam->setAspectRatio(1.0);
+                lightCam->setFOVy(Degree(164));
+                lightCam->rotate(Vector3(1,0,0),Degree(-90));
+                lightCam->move(BS_center+Ogre::Vector3(-50,400,78));
+
+                shadowViewport = render_target->addViewport(lightCam);
+                shadowViewport->setClearEveryFrame(true);
+                shadowViewport->setBackgroundColour(ColourValue::White);
+
+                render_target->addListener(this);
+
+                MaterialPtr terrainMat = MaterialManager::getSingleton().getByName("Demos/TerrainMixed");
+                Ogre::Pass *thePass = terrainMat->getTechnique(0)->createPass();
+                thePass->setSceneBlending(Ogre::SBT_MODULATE);
+                Ogre::TextureUnitState *texState = thePass->createTextureUnitState();
+                texState->setTextureName("TheShadowMap");
+                thePass->_load();
+
+                terrainMat->compile();
+                terrainMat->load();
+
+#endif
     }