Changeset 1775 for GTP/trunk/App/Demos/Geom/Demo_LodStrips

Timestamp:

11/21/06 11:10:53 (18 years ago)

Author:

gumbau

Message:

Improved Demo_LodStrips.exe
Changed Scene appearance.
Added F2 key (shadows on-off) and F3 key (manual vs automatic LOD).

Location:

GTP/trunk/App/Demos/Geom/Demo_LodStrips

Files:

• Demo_LodStrips.exe.lnk (modified) (previous)
• Demo_LodStrips.suo (modified) (previous)
• build/Release/Demo_LodStrips.exe (modified) (previous)
• main.cpp (modified) (17 diffs)

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

@@ -26 +26 @@
 
 //Global variables
+
 Entity* entity;
 Geometry::LodStripsLibrary* myStrips;
@@ -42 +43 @@
 OverlayElement* mInfo2;
 OverlayElement* mHelp;
-
-char HelpString[]="(F1) Help\n"
+OverlayElement* mLOD;
+OverlayElement* mShad;
+SceneManager* SceneMgrAux;
+
+char LODStringAuto[]="(F3) LOD Mode: AUTOMATIC";
+char LODStringManu[]="(F3) LOD Mode: MANUAL";
+char ShadON[]       ="(F2) Shadows ON";
+char ShadOFF[]      ="(F2) Shadows OFF";
+
+int degAA=0, degABAB=0;
+
+char HelpString[]="(F1) Quit Help\n"
                         "This demo shows an example of the LODStrips model in action. The models in the scene\n"
                         "are associated to a LodStrips object that manage their level of detail.\n"
@@ -50 +61 @@
                         "closer to them the level of detail increases to restore the original geometry of the\n"
                         "model.\n"
-                        "The current level of detail can be seen in real-time in the top-left corner of the screen.\n"
+                        "The current level of detail can be seen in real-time in the bottom-left corner of the screen.\n"
                         "The level of detail begins to decrease at a certain distance of the crowd, and stops\n"
                         "decreasing when the objects reach the their minimum LOD. This 'lodding' distance is\n"
-                        "customizable from the source code of the demo.";
-
-char NoHelpString[]="(F1) Help\n";
+                        "customizable from the source code of the demo.\n\n"
+                        "(F3) LOD Mode   ( AUTOMATIC  vs  MANUAL )\n"
+                        "           MANUAL MODE:  Use (+) and (-) keys to change de LOD\n";
+
+char NoHelpString[]="\n\n\n\n\n\n\n\n\n\n\n\n\n(F1) Help\n";
+
+int num_ogres = 90;
 
 
@@ -82 +97 @@
         }
         virtual void End(){
+                int v0, v1, v2, v3;
+                unsigned int i;
+
+                v0 = pIdx[0];
+                v1 = pIdx[1];
+                for ( i=2; i < mRenderOp.indexData->indexCount; i++)
+                {
+                        if ( v0 == v1 ) degAA++;
+                        v0 = v1;
+                        v1 = pIdx[i];
+                }
+
+                v0 = pIdx[0];
+                v1 = pIdx[1];
+                v2 = pIdx[2];
+                v3 = pIdx[3];
+        for ( i=4; i < mRenderOp.indexData->indexCount; i++)
+                {
+                        if ( ( v0 == v2 ) && ( v1 == v3 ) )
+                        {
+                                v0 = v2;
+                                v1 = v3;
+                                v2 = pIdx[i];
+                                if ( i < mRenderOp.indexData->indexCount )
+                                {
+                                        i++;
+                                        v3 = pIdx[i];
+                                }
+                                else v3 = -1;
+
+                                degABAB++;
+                        }
+                        else
+                        {
+                            v0 = v1;
+                            v1 = v2;
+                                v2 = v3;
+                                v3 = pIdx[i];
+                        }
+                }
+
                 ibuf->unlock();
         }
@@ -89 +145 @@
 class FresnelFrameListener : public ExampleFrameListener
 {
-        int manage;
+        float miButtonTimer;
 
 public:
@@ -96 +152 @@
         : ExampleFrameListener(win, cam, false, false)
     {
-                manage=1;
+                miButtonTimer=0;
         }
 
@@ -102 +158 @@
     {
                 Vector3 dist; 
-                int distance=0,inc2=0,d;
-                unsigned int nlod,diflods;
+                int distance=0,inc2=0;
+            static int modo=0;
+                static int shadows=1;
+
+                float tiempo = evt.timeSinceLastFrame;
+                miButtonTimer -= tiempo;
+
+                if (shadows == 0)
+                {
+                        SceneMgrAux->setShadowTechnique(SHADOWTYPE_NONE);
+                }
+                else
+                {
+                        SceneMgrAux->setShadowTechnique(SHADOWTYPE_TEXTURE_MODULATIVE);
+                }
+
 
                 // Move upto 80 units/second
@@ -131 +201 @@
 
                 //LOD selection
-                int difdist = dist_max - dist_min;
-        
-                int i=0;
-
+                static float lodfactor=0;
+                static float lodfactorBefore = -1.0f;
+                
                 dist = node->getPosition() - mCamera->getPosition(); 
                 distance =dist.length();
 
-                float lodfactor = (float)(distance - dist_min) / (float)(dist_max - dist_min);
-                lodfactor = 1.0f - lodfactor;
+                if ( modo == 0 )      //Automatic LOD
+                {
+                        int difdist = dist_max - dist_min;
+        
+                        int i=0;
+
+                        lodfactor = (float)(distance - dist_min) / (float)(dist_max - dist_min);
+                        lodfactor = 1.0f - lodfactor;
+                }
+                else
+                {
+          //  lodfactor = lodfactorBefore;
+                }
+
+                        
+        if (( mInputDevice->isKeyDown(Ogre::KC_ADD) ) && (modo == 1))
+                                lodfactor += 0.001f;
+            if (( mInputDevice->isKeyDown(Ogre::KC_SUBTRACT) ) && (modo == 1))
+                                lodfactor -= 0.001f;
 
                 if (lodfactor<0.0f)
@@ -146 +232 @@
                         lodfactor=1.0f;
 
-                static float lodfactorBefore = -1.0f;
                 if (fabsf(lodfactorBefore-lodfactor)>0.03f || 
                         (lodfactorBefore>0.0f && lodfactor==0.0f) ||
                         (lodfactorBefore<1.0f && lodfactor==1.0f))
                 {
+                        degAA=0; degABAB=0;
                         myStrips->GoToLod(lodfactor);
                         lodfactorBefore=lodfactor;
+                }
+
+                if ( mInputDevice->isKeyDown(Ogre::KC_F3) && ( miButtonTimer <= 0 ) )
+                {
+                            miButtonTimer = 0.5;
+                                
+                                if (modo == 0)
+                                {
+                                        modo=1;
+                                        mLOD->setCaption(LODStringManu);
+                                }
+                                else 
+                                {
+                                        modo=0;
+                                        mLOD->setCaption(LODStringAuto);
+                                }
+                }
+
+                if ( mInputDevice->isKeyDown(Ogre::KC_F2) && ( miButtonTimer <= 0 ) )
+                {
+                            miButtonTimer = 0.5;
+                                
+                                if (shadows == 0)
+                                {
+                                        shadows = 1;
+                                        mShad->setCaption(ShadON);
+                                }
+                                else 
+                                {
+                                        shadows = 0;
+                                        mShad->setCaption(ShadOFF);
+                                }
                 }
 
@@ -215 +333 @@
         }
 
+                SceneMgrAux->setShadowFarDistance(distance + 200);
 
                 char cadena[256];
-
+        const RenderTarget::FrameStats& stats = mWindow->getStatistics();
                                 
-                sprintf(cadena,"Distance: %d",distance);
-                
+                sprintf(cadena,"\nDistance: %d\nLOD factor: %f\nTriangle Count: %d\nDegenerated AA: %d\nDegenerated ABAB: %d"
+                                     ,    distance,      lodfactor,stats.triangleCount,    degAA*num_ogres,    degABAB*num_ogres);
                 mInfo->setCaption(cadena);
-
-                sprintf(cadena,"LOD factor: %f",lodfactor);
-
+                sprintf(cadena,"Current FPS: %f\n",stats.lastFPS);
                 mInfo2->setCaption(cadena);
+
+                //sprintf(cadena,"LOD factor: %f",lodfactor);
+
+                //mInfo2->setCaption(cadena);
 
                 mCamera->yaw(mRotX);
@@ -248 +369 @@
     void createScene(void)
     {
-                Entity* pEnt;
+                SceneMgrAux = mSceneMgr;
+        mSceneMgr->setAmbientLight(ColourValue(0.2, 0.2, 0.2));
+                mSceneMgr->setShadowTechnique(SHADOWTYPE_TEXTURE_MODULATIVE);
+                mSceneMgr->setShadowTextureSettings(2048,1);
+                mSceneMgr->setShadowFarDistance(1024);
+                mSceneMgr->setShadowColour(ColourValue(0.5, 0.5, 0.5));
 
                 mat = new MaterialPtr[1];
 
-        theCam = mCamera;
-        theCam->setPosition(0,50,dist_min-600.0f);
+                theCam = mCamera;
+        theCam->setPosition(-35,50,dist_min-600.0f);
         // Set ambient light
-        mSceneMgr->setAmbientLight(ColourValue(0.3, 0.3, 0.3));
 
         // Create a directional light
         Light* l = mSceneMgr->createLight("MainLight");
         l->setType(Light::LT_DIRECTIONAL);
-        l->setDirection(0.0,0.0,-1.0);
-       
-       
+        l->setDirection(-0.5,-1.0,-1.0);
+                l->setCastShadows(true);
+
         mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
 
@@ -273 +398 @@
                 MeshManager::getSingleton().createPlane("ground",
                         ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane,
-                        4000,4000,6,6,true,1,10,10,Vector3::UNIT_Z);
+                        20000,10000,6,6,true,1,250,250,Vector3::UNIT_Z);
 
                 Entity* groundEntity = mSceneMgr->createEntity( "GroundEntity", "ground" );
                 mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(groundEntity);
                 
-                groundEntity->setMaterialName("RockTerrain");
-                groundEntity->setCastShadows(false);       
+                groundEntity->setMaterialName("SnowTerrain");
+                groundEntity->setCastShadows(false);
 
                 std::string model_file=model_name;
@@ -294 +419 @@
         node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
         node->attachObject( entity );
-                node->setVisible(false);
+                node->setVisible(false);                
 
                 std::string lod_file="../../media/GT/";
@@ -310 +435 @@
                 entity->setMaterialName("LODStripsDemo/Ogro");
 
-                for (int i=-3; i<6; i++) // 7
-                        for (int j=0; j<10; j++) // 4
+
+                num_ogres=0;
+
+                for (int i=-4; i<4; i++) // 7
+                        for (int j=0; j<8; j++) // 4
                         {
                                 char newObjName[16]="";
@@ -322 +450 @@
                                 float randomsepx = (float)((rand()%18)-9);
                                 float randomsepy = (float)((rand()%12)-6);
-                                auxnode->translate(i*70.0f+randomsepx,0.0f,-j*70.0f-randomsepx);
+                                auxnode->translate(i*70.0f+randomsepx,-0.3f,-j*70.0f-randomsepx);
                                 auxen->setNormaliseNormals(true);
+                                auxen->setCastShadows(true);
+
+                                num_ogres++;
                         }
 
@@ -333 +464 @@
                 mInfo2 = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_2");
                 mHelp = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Help");
+                mLOD = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/ModoLOD");
+                mShad = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Shadows");
                 mHelp->setCaption(NoHelpString);
-            pOver->show();
+                mLOD->setCaption(LODStringAuto);
+                mShad->setCaption(ShadON);
+                pOver->show();
+                //mWindow->getStatistics();
 
     }
@@ -341 +477 @@
     {
         mFrameListener= new FresnelFrameListener(mWindow, mCamera);
-        mFrameListener->showDebugOverlay(true);
+        mFrameListener->showDebugOverlay(false);
         mRoot->addFrameListener(mFrameListener);
     }