Changeset 1552 for GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoLodStripsLibrary.cpp

Timestamp:

10/02/06 19:09:48 (18 years ago)

Author:

gumbau

Message:

Fixed degenerates in LodStripsFixed?

File:

• GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoLodStripsLibrary.cpp (modified) (8 diffs)

GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoLodStripsLibrary.cpp

@@ -281 +281 @@
         }
 
+/*      // debug!
+        FILE *f = fopen("lodstrips_lodinfo.txt","wt");
+        fprintf(f,"mCurrentLOD: %d",mCurrentLod);
+        fprintf(f,"mLods: %d",mLods);
+        for (int i=0; i<mTotalStrips; i++)
+        {
+                fprintf(f,"\nstrip: %d - ",i);
+                for (int j=0; j<mStrips[i].size(); j++)
+                {
+                        int ind = mStrips[i][j];
+                        fprintf(f,"%d ",ind);
+                }
+        }
+        fclose(f);*/
+
         UpdateDataRetrievalInterface();
 //      return  return_value;
@@ -456 +471 @@
                 mStripsChanges[i]       =       0;
         }
+
 //      dataRetrievalInterface->End();
 
@@ -525 +541 @@
                         indexBegin      =       geoSubMesh->mStrip[strip];
 
-                        //      If the strips is not the first.
-                        
-/*                      if (strip != 0)
-                        {
+                        //      If the strips is not the first. (DEG!)
+                        if (strip != 0)
                                 indexBegin++;
-                        }
-*/                      
 
                         //      If is the final strip
@@ -544 +556 @@
                                 indexEnd        = geoSubMesh->mStrip[strip + 1];
 
-                                //      Remove degenerated
-//                              indexEnd--;
+                                //      Remove degenerated (DEG!)
+                                indexEnd--;
                         }
                         
@@ -656 +668 @@
 void LodStripsLibrary::UpdateDataRetrievalInterface(void)
 {
-        unsigned        int     ii      =       0;
-        
-        int     counter = 0;
         int     target_submesh  = 0;
         size_t  strip_count     = 0;
-        unsigned int ii_submesh = 0;
-
-        dataRetrievalInterface->Begin(target_submesh, indices_x_submesh[target_submesh]);
-
-//      dataRetrievalInterface->SetCurrentSubmesh(target_submesh);
-
-        for (unsigned   int     i       =       0;      i < mTotalStrips;       i++,    strip_count++)
+        unsigned int ii_submesh = 0;    
+        current_triangle_count = 0;
+
+        // indices_x_submesh is calculated without degenerates, 
+        // we must add the degenerate indices added here
+        uint32 numdeg = mGeoMesh->mSubMesh[target_submesh].mStripCount*2 - 2;
+
+        dataRetrievalInterface->Begin(target_submesh, indices_x_submesh[target_submesh] + numdeg);
+        current_triangle_count += indices_x_submesh[target_submesh] + numdeg;
+
+        for (unsigned int i = 0; i < mTotalStrips; i++, strip_count++)
         {
                 if (strip_count >= mGeoMesh->mSubMesh[target_submesh].mStripCount)
                 {
-//                      indices_x_submesh[target_submesh] = counter;
-
                         if (target_submesh==0)
                                 offsets_x_submesh[target_submesh] = 0;
@@ -678 +689 @@
                                 offsets_x_submesh[target_submesh] = indices_x_submesh[target_submesh-1] + offsets_x_submesh[target_submesh-1];
 
-                        counter =       0;
                         mStripsSubmesh[target_submesh]  =       (int)strip_count;
                         strip_count     =       0;
@@ -684 +694 @@
                         target_submesh++;
                         ii_submesh = 0;
-//                      dataRetrievalInterface->SetCurrentSubmesh(target_submesh);
                         dataRetrievalInterface->End();
-                        dataRetrievalInterface->Begin(target_submesh, indices_x_submesh[target_submesh]);
+                        
+                        numdeg = mGeoMesh->mSubMesh[target_submesh].mStripCount*2 - 2;
+                        dataRetrievalInterface->Begin(target_submesh, indices_x_submesh[target_submesh] + numdeg);
+                        current_triangle_count += indices_x_submesh[target_submesh] + numdeg;
                 }
                 
                 int lastindex = -1;
-                for (SmallIntVector::iterator it=mStrips[i].begin(); it!=mStrips[i].end(); it++, ii++, ii_submesh++)
+                for (SmallIntVector::iterator it=mStrips[i].begin(); it!=mStrips[i].end(); it++, ii_submesh++)
                 {
-/*                      // repeat the first index of the strip: degenerate
-                        if (lastindex==-1)
+                        // repeat the first index of the strip: degenerate (DEG!)
+                        // except for the first strip in a mesh
+                        if (lastindex==-1 && strip_count>0)
                         {
                                 lastindex=*it;
-                                dataRetrievalInterface->SetIndex(ii,*it);                               
-                                counter++;
-                                ii++;
-                        }*/
+                                dataRetrievalInterface->SetIndex(ii_submesh,*it);                               
+                                ii_submesh++;
+                        }
                         lastindex=*it;
                         dataRetrievalInterface->SetIndex(ii_submesh,*it);
-                        counter++;
                 }
 
-/*              // last repeat last vertex of the strip: degenerate
-                dataRetrievalInterface->SetIndex(ii,lastindex);
-                counter++;
-                ii++;*/
-
-//              dataRetrievalInterface->SetNumValidIndices(ii);
+                // repeat last vertex of the strip: degenerate (DEG!)
+                // except for the last strip in a mesh
+                if (strip_count<mGeoMesh->mSubMesh[target_submesh].mStripCount-1)
+                {
+                        dataRetrievalInterface->SetIndex(ii_submesh,lastindex);
+                        ii_submesh++;
+                }
         }
 
         if (strip_count >= mGeoMesh->mSubMesh[target_submesh].mStripCount)
         {
-//              indices_x_submesh[target_submesh] = counter;
                 if (target_submesh==0)
                         offsets_x_submesh[target_submesh] = 0;
@@ -721 +732 @@
                         offsets_x_submesh[target_submesh] = indices_x_submesh[target_submesh-1] + offsets_x_submesh[target_submesh-1];
 
-                counter = 0;
                 mStripsSubmesh[target_submesh] = (int)strip_count;
                 strip_count = 0;
                 target_submesh++;
-//              dataRetrievalInterface->SetCurrentSubmesh(target_submesh);
         }