Changeset 1561 for GTP/trunk/App/Demos/Geom/Demo_LodTrees/main.cpp

Timestamp:

10/03/06 17:31:07 (18 years ago)

Author:

gumbau

Message:

Added F1 key functionality

File:

• GTP/trunk/App/Demos/Geom/Demo_LodTrees/main.cpp (modified) (10 diffs)

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

@@ -19 +19 @@
 // Distance values
 #define dist_min 300
-#define dist_max 700
+#define dist_max 900
 
 // Model name
@@ -41 +41 @@
 OverlayElement* mInfo;
 OverlayElement* mInfo2;
+OverlayElement* mHelp;
+
+char HelpString[]="(F1) Help\n"
+                        "This demo shows an example of the LodTree model in action. The trees in the scene\n"
+                        "are associated to a LodTree object that manage their level of detail of both the\n"
+                        "trunk and the leaves. The level of detail of the objects depend on the distance to\n"
+                        "the camera. When the camera goes away from them, the level of detail decreases, and\n"
+                        "when the camera gets closer to them the level of detail increases to restore the\n"
+                        "original geometry of the model.\n"
+                        "The current level of detail can be seen in real-time in the top-left corner of the screen.\n"
+                        "The level of detail begins to decrease at a certain distance of the forest, 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";
 
 
@@ -107 +122 @@
 
                 static float lodfactorBefore = -1.0f;
-                if (fabsf(lodfactorBefore-lodfactor)>0.05f)
+                if (fabsf(lodfactorBefore-lodfactor)>0.1f)
                 {
                         myTrees->GoToLod(lodfactor);
@@ -141 +156 @@
                 if(mInputDevice->isKeyDown(Ogre::KC_RIGHT))
                   mCamera->yaw(-mRotScale);
+
+                static bool newpush = true;
+                if (!mInputDevice->isKeyDown(Ogre::KC_F1))
+                        newpush = true;
+
+                static bool showing_help = false;
+                if (mInputDevice->isKeyDown(Ogre::KC_F1) && newpush)
+                {
+                        newpush = false;
+                        if (showing_help = !showing_help)
+                mHelp->setCaption(HelpString);
+                        else
+                mHelp->setCaption(NoHelpString);
+                }
+
 
                 if(mInputDevice->isKeyDown(Ogre::KC_ESCAPE))
@@ -230 +260 @@
         // Set ambient light
         mSceneMgr->setAmbientLight(ColourValue(0.4, 0.4, 0.4));
+                theCam->setNearClipDistance(0.1f);
 
         // Create a directional light
@@ -260 +291 @@
 
                 //Models
-        entity = mSceneMgr->createEntity(model_name, "../../../OgreStuff/media/GT/ML12m.mesh");
+        entity = mSceneMgr->createEntity(model_name, "../../../OgreStuff/media/GT/ML11.mesh");
 
                 ogreMesh = entity->getMesh().getPointer();
@@ -266 +297 @@
                 // load LOD info from the object
                 meshloader=new Geometry::GeoMeshLoader;
-                Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/ML12m.mesh");
+                Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/ML11.mesh");
 
                 if (!meshloader->GetLodStripsData())
@@ -284 +315 @@
                         bool istrunk = myTrees->GetLeavesSubMesh()!=submesh;
                         if (istrunk)
-                                entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/trunk");
+                                entity->getSubEntity(submesh)->setMaterialName("Examples/ML11/trunk");
                         else
-                                entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/leaf");
+                                entity->getSubEntity(submesh)->setMaterialName("Examples/ML11/leaf");
                 }
 
                 forest_center=Ogre::Vector3(150.0f,0.0f,0.0f);
-                for (int i=1; i<8; i++) // 20
-                        for (int j=1; j<8; j++) // 20
+                for (int i=1; i<5; i++) // 20
+                        for (int j=1; j<5; j++) // 20
                         {
                                 char newTreeName[16]="";
@@ -301 +332 @@
                                 auxnode->rotate(Ogre::Vector3(0,0,1),Ogre::Degree(rand()%360));
                                 auxnode->rotate(Ogre::Vector3(1,0,0),Ogre::Radian(-3.14159f*0.5f),Ogre::Node::TS_WORLD);
-                                float randomsepx = (float)((rand()%18)-9);
-                                float randomsepy = (float)((rand()%12)-6);
-                                auxnode->translate(i*30.0f+randomsepx,0.0f,-j*30.0f-randomsepx);
+                                float randomsepx = (float)((rand()%38)-19);
+                                float randomsepy = (float)((rand()%32)-12);
+                                auxnode->translate(i*80.0f+randomsepx,0.0f,-j*80.0f-randomsepx);
                                 auxent->setNormaliseNormals(true);
                         }
@@ -315 +346 @@
         mInfo = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_1");
                 mInfo2 = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_2");
+                mHelp = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Help");
+                mHelp->setCaption(NoHelpString);
             pOver->show();