Changeset 1529 for GTP/trunk/App/Demos/Geom/Demo_LodTrees

Timestamp:

09/28/06 19:26:26 (18 years ago)

Author:

gumbau

Message:

Demos upgraded to the new programming interface

Location:

GTP/trunk/App/Demos/Geom/Demo_LodTrees

Files:

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

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

@@ -43 +43 @@
 
 
-void DumpDataToOgreBuffers(Ogre::Mesh *original_mesh, Geometry::LodTreeLibrary *lodTreesLib)
+/*void DumpDataToOgreBuffers(Ogre::Mesh *original_mesh, Geometry::LodTreeLibrary *lodTreesLib)
 {
         // Copy to Ogre buffers including the degenerated triangles
@@ -81 +81 @@
                 ibuf->unlock();
         }
-}
+}*/
 
 class FresnelFrameListener : public ExampleFrameListener
@@ -149 +149 @@
                 {
                         myTrees->GoToLod(lodfactor);
-                        DumpDataToOgreBuffers(ogreMesh,myTrees);
+//                      DumpDataToOgreBuffers(ogreMesh,myTrees);
                         lodfactorBefore=lodfactor;
                 }
@@ -207 +207 @@
 };
 
+class CustomIndexData : public Geometry::IndexData
+{
+private:
+        Ogre::Mesh *targetMesh;
+        Ogre::HardwareIndexBufferSharedPtr ibuf;
+        Ogre::RenderOperation mRenderOp;
+        unsigned long* pIdx;
+public:
+        CustomIndexData(Ogre::Mesh *ogremesh):Geometry::IndexData(){
+                targetMesh=ogremesh;
+                pIdx=NULL;
+        }
+        virtual ~CustomIndexData(void){}
+
+        virtual void Begin(unsigned int submeshid, unsigned int indexcount){
+                targetMesh->getSubMesh(submeshid)->_getRenderOperation(mRenderOp,0);
+                ibuf = mRenderOp.indexData->indexBuffer;
+                mRenderOp.indexData->indexCount = indexcount;
+                pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
+        }
+        virtual void SetIndex(unsigned int i, unsigned int index){
+                pIdx[i] = index; //lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
+        }
+        virtual void End(){
+                ibuf->unlock();
+        }
+
+        virtual void BorrowIndexData(const Geometry::IndexData *){}
+};
+
+
 class FresnelApplication : public ExampleApplication
 {
@@ -274 +305 @@
             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);
+                myTrees = new Geometry::LodTreeLibrary( meshloader->GetLodStripsData(),
+                                                                                                meshloader->GetTreeSimpSeq(),
+                                                                                                themesh,
+                                                                                                new CustomIndexData(ogreMesh));
 
                 entity->setNormaliseNormals(true);