Changeset 1306

Timestamp:

08/31/06 17:11:13 (18 years ago)

Author:

gumbau

Message:

Demo efficiency improved (indexbuffers)

Location:

GTP/trunk/App/Demos/Geom

Files:

• Demo_LodStrips/Demo_LodStrips.suo (modified) (previous)
• Demo_LodStrips/main.cpp (modified) (5 diffs)
• Demo_LodTrees/Demo_LodTrees.suo (modified) (previous)
• Demo_LodTrees/main.cpp (modified) (3 diffs)

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

@@ -121 +121 @@
                 original_mesh->getSubMesh(submesh)->_getRenderOperation(mRenderOp,0);
 
-                ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( 
-                        Ogre::HardwareIndexBuffer::IT_32BIT, // type of index 
-                        indices_to_render, // number of indexes 
-                        Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
-                        false); // no shadow buffer 
-                                        
-                mRenderOp.indexData->indexBuffer = ibuf;
-                mRenderOp.indexData->indexStart = 0;//offset; 
+                ibuf = mRenderOp.indexData->indexBuffer;
+                mRenderOp.indexData->indexStart = 0;
                 mRenderOp.indexData->indexCount = indices_to_render;
 
@@ -135 +129 @@
                 for (int k=0; k<indices_to_render; k++)
                         pIdx[k] = lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
-                        
+
                 ibuf->unlock();
-
         }
 }
@@ -200 +193 @@
                         lodfactor=1.0f;
 
-/*              if (lodfactor >= 0.0f && lodfactor <= 1.0f)                     
-                {*/
                 static float lodfactorBefore = -1.0f;
                 if (fabsf(lodfactorBefore-lodfactor)>0.05f || 
@@ -210 +201 @@
                         DumpDataToOgreBuffers(ogreMesh,myStrips);
                         lodfactorBefore=lodfactor;
-
-/*                      if (lodfactor < 0.333f)
-                        {
-                                color.r=0.0;
-                                color.g=(lodfactor)*3.0f;//nlod*1.0/(diflods/3);
-                                color.b=(0.3f-lodfactor)*3.0f;//(nlod*1.0/(diflods/3));
-                        }
-                        else
-                        {
-                                if (lodfactor<0.666f)
-                                {
-                                        color.r=(lodfactor-0.333f)*3.0f;//(nlod-diflods/3)*1.0/(diflods/3);
-                                        color.g=1.0;
-                                        color.b=0.0;
-                                }
-                                else
-                                {
-                                        color.r=1.0;
-                                        color.g=(0.3f-lodfactor)*3.0f;//(nlod-(2*diflods/3))*1.0/(diflods/3);
-                                        color.b=0.0;
-                                }
-                        }
-                        mat[0]->setDiffuse(color);*/
                 }
-/*              else
-                {
-                        if ((distance > dist_max))
-                        {
-                                color.r=0.0;
-                                color.g=0.0;
-                                color.b=1.0;
-                                mat[0]->setDiffuse(color);
-
-                        }
-                        else
-                        {
-                                if ((distance < dist_min))
-                                {
-                                        color.r=1.0;
-                                        color.g=0.0;
-                                        color.b=0.0;
-                                        mat[0]->setDiffuse(color);
-                                }
-                        }
-                }
-*/
+
                 // Move the node
                 if(mInputDevice->isKeyDown(Ogre::KC_UP))
@@ -452 +399 @@
                 lod_file.append(".lod");
 
-//              myStrips = new LodStripsLibrary(lod_file,entity->getMesh().getPointer());
-
                 if (!meshloader->GetLodStripsData())
             OGRE_EXCEPT(1, "The loaded mesh does not contain any LOD info","LOD Demo");
 
                 myStrips = new Geometry::LodStripsLibrary(meshloader->GetLodStripsData(),themesh);
+                
+                for (unsigned int i=0; i<ogreMesh->getNumSubMeshes(); i++)
+                {
+                        Ogre::RenderOperation mRenderOp;
+                        ogreMesh->getSubMesh(i)->_getRenderOperation(mRenderOp,0);
+                        int indices_to_render = myStrips->GetValidIndexCount(i);
+
+                        mRenderOp.indexData->indexBuffer = 
+                                        Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( 
+                                                Ogre::HardwareIndexBuffer::IT_32BIT, // type of index 
+                                                indices_to_render, // number of indexes 
+                                                Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
+                                                false);
+                }
 
                 entity->setNormaliseNormals(true);
-
                 aboveWaterEnts.push_back(entity);
-
-                // Colour-coded material
-/*              mat[0] = MaterialManager::getSingleton().create("test_mat", 
-                        ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
-                mat[0]->setCullingMode(CULL_NONE);
-                mat[0]->setAmbient(ColourValue(0.5f,0.5f,0.5f));
-                mat[0]->setDiffuse(color);
-                mat[0]->setLightingEnabled(true);*/
-                //entity->setMaterialName("test_mat");
                 entity->setMaterialName("LODStripsDemo/Ogro");
 
-
-                for (int i=-3; i<7; i++) // 20
-                        for (int j=0; j<4; j++) // 20
+                for (int i=-3; i<7; i++)
+                        for (int j=0; j<4; j++)
                         {
                                 char newObjName[16]="";

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

@@ -67 +67 @@
                 }
 
-                ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( 
-                        Ogre::HardwareIndexBuffer::IT_32BIT, // type of index 
-                        indices_to_render, // number of indexes 
-                        Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
-                        false); // no shadow buffer 
-                                        
-                mRenderOp.indexData->indexBuffer = ibuf;
+                ibuf = mRenderOp.indexData->indexBuffer;
                 mRenderOp.indexData->indexStart = 0;
                 mRenderOp.indexData->indexCount = indices_to_render;            
@@ -276 +270 @@
                 Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/ML12m.mesh");
 
+                if (!meshloader->GetLodStripsData())
+            OGRE_EXCEPT(1, "The loaded mesh does not contain LOD info for the trunk","LOD Demo");
+                if (!meshloader->GetTreeSimpSeq())
+            OGRE_EXCEPT(1, "The loaded mesh does not contain LOD info for the foliage","LOD Demo");
+
                 myTrees = new Geometry::LodTreeLibrary(meshloader->GetLodStripsData(),meshloader->GetTreeSimpSeq(),themesh);
 
@@ -283 +282 @@
                 {
                         bool istrunk = myTrees->GetLeavesSubMesh()!=submesh;
+                        int indices_to_render = 0;
                         if (istrunk)
+                        {
                                 entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/trunk");
+                                indices_to_render = myTrees->GetValidTrunkIndexCount(submesh);
+                        }
                         else
+                        {
                                 entity->getSubEntity(submesh)->setMaterialName("Examples/Populifolia/leaf");
+                                indices_to_render = myTrees->CurrentLOD_Foliage_IndexCount();
+                        }
+
+                        Ogre::RenderOperation mRenderOp;
+                        ogreMesh->getSubMesh(submesh)->_getRenderOperation(mRenderOp,0);
+
+                        mRenderOp.indexData->indexBuffer = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( 
+                                Ogre::HardwareIndexBuffer::IT_32BIT, // type of index 
+                                indices_to_render, // number of indexes 
+                                Ogre::HardwareBuffer::HBU_DISCARDABLE , // usage
+                                false); // no shadow buffer 
                 }