Changeset 6472 in orxonox.OLD for branches/height_map/src/lib/graphics/importer/height_map.cc

Timestamp:

Jan 11, 2006, 2:11:16 PM (18 years ago)

Author:

bottac

Message:

Added Class Tile to HeightMap (allows a primitive LOD Implementation).

File:

• branches/height_map/src/lib/graphics/importer/height_map.cc (modified) (6 diffs)

branches/height_map/src/lib/graphics/importer/height_map.cc

@@ -29 +29 @@
 #include <SDL/SDL_image.h>
 #endif
+
+Tile::Tile(int i1, int j1, int i2, int j2, HeightMap* hm ) 
+{
+
+PRINTF(0)("Tile Constructor\n");
+highResModel = new VertexArrayModel();
+lowResModel  = new VertexArrayModel();
+
+this->load(i1,j1,i2,j2,hm,highResModel,4);
+this->load(i1,j1,i2,j2,hm,lowResModel, 32);
+}
+
+Tile::Tile()
+{
+PRINTF(0)("ooops *********************************************************************************************************************************************************************************************************** \n");
+}
+
+Tile::~Tile()
+{
+ delete highResModel;
+ delete lowResModel;
+}
+
+void Tile::draw()
+{
+ lowResModel->draw(); 
+}
+
+void Tile::drawHighRes()
+{
+ highResModel->draw();
+}
+
+void Tile::drawLowRes()
+{
+ lowResModel->draw();
+}
+
+/*
+*/
+void Tile::load(int i1, int j1, int i2, int j2, HeightMap* hm, VertexArrayModel* model, int Res)
+{
+        
+        #define heightMap hm->heightMap
+        #define colours   hm->colours
+        #define scaleX hm->scaleX
+        #define scaleY hm->scaleY
+        #define scaleZ hm->scaleZ
+        #define shiftX hm->shiftX
+        #define shiftY hm->shiftY
+        #define shiftZ hm->shiftZ
+        #define normalVectorField hm->normalVectorField
+        
+        int sampleRate = Res;
+        
+        unsigned char height = 0;
+        int offset = 0;
+        
+        float r = 0.0;
+        float g = 0.0;
+        float b = 0.0;
+
+ 
+PRINTF(0)("loadin * \n");
+ 
+ if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )
+        
+        SDL_LockSurface(heightMap);
+
+        for(int i = i1 ; i <= i2  ; i +=sampleRate)
+        {
+                int w = 0;
+
+                
+                
+                 if(hm->hasColourMap)
+                 {
+                 r = (float)colours[3*w+2 + 3*i*(heightMap->w )];
+                 g = (float)colours[3*w+1 + 3*i*(heightMap->w)];
+                 b = (float)colours[3*w+0 + 3*i*(heightMap->w)];
+                 }
+                
+                w = j1;
+                model->addVertex(scaleX*(heightMap->h -i)+ shiftX,shiftY,scaleZ*(w)+ shiftZ); // Top Right
+                model->addNormal(normalVectorField[i][w].y,normalVectorField[i][w].z,normalVectorField[i][w].x);
+                model->addTexCoor((((w -sampleRate)/sampleRate)%4)/4.0,(((i-sampleRate)/sampleRate)%4)/4.0);
+                model->addColor(r/255.0,g/255.0,b/255.0);
+                
+            for(int j = j1  ; j <= j2    ;  j += sampleRate)
+            {
+            
+            
+                 // To be fixed
+                 if(hm->hasColourMap)
+                 {
+                 r = (float)colours[3*j+2 + 3*i*(heightMap->w )];
+                 g = (float)colours[3*j+1 + 3*i*(heightMap->w)];
+                 b = (float)colours[3*j+0 + 3*i*(heightMap->w)];
+                 }
+                height =  hm->heights[j+sampleRate + i*(heightMap->w )];
+                model->addVertex(scaleX*(heightMap->h -i) + shiftX ,((double)(height)*scaleY) + shiftY ,scaleZ*(j) + shiftZ); // Top Right      
+                model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                model->addTexCoor(((j/sampleRate)%texRate)/texRatef,((i/sampleRate)%texRate)/texRatef, ((j/sampleRate)%heightMap->w)/float(heightMap->w),((i/sampleRate)%heightMap->h)/float(heightMap->h));
+
+                model->addColor(r/255.0,g/255.0,b/255.0);
+                
+                
+                w = j;
+            }
+                
+                
+                model->addVertex(scaleX*(heightMap->h -i)+ shiftX,shiftY,scaleZ*(w)+ shiftZ); // Top Right
+                model->addNormal(normalVectorField[i][w].y,normalVectorField[i][w].z,normalVectorField[i][w].x);
+                model->addTexCoor((((w+sampleRate)/sampleRate)%4)/4.0,(((i+ sampleRate)/sampleRate)%4)/4.0);
+                model->addColor(r/255.0,g/255.0,b/255.0);
+                
+        }
+        
+        
+        
+
+
+        SDL_UnlockSurface(heightMap);
+        int cnt = 0;
+        for(int i = i1   ; i < i2  ; i +=sampleRate)
+        {
+                
+            for(int j = j1-sampleRate  ; j < j2  + 2*sampleRate  ;  j += sampleRate)
+            {
+                
+                model->addIndice(cnt);
+                model->addIndice(cnt  + (j2 -j1 + 3* sampleRate  )/ sampleRate );
+                cnt++;
+                
+            }
+                
+                
+                
+                 model->newStripe();    
+                
+                
+        }
+         cnt += (j2 -j1 + 3* sampleRate)/ sampleRate;
+        
+                for(int j = j1 ; j <= j2    ;  j += sampleRate)
+            {
+                int i = i1;
+            
+                 // To be fixed
+                 if(hm->hasColourMap)
+                 {
+                 r = (float)colours[3*j+2 + 3*i*(heightMap->w )];
+                 g = (float)colours[3*j+1 + 3*i*(heightMap->w)];
+                 b = (float)colours[3*j+0 + 3*i*(heightMap->w)];
+                 }
+                
+                model->addVertex(scaleX*(heightMap->h -i) + shiftX , shiftY ,scaleZ*(j) + shiftZ); // Top Right 
+                model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                model->addTexCoor(((j/sampleRate)%texRate)/texRatef,(((i - sampleRate)/sampleRate)%texRate)/texRatef, ((j/sampleRate)%heightMap->w)/float(heightMap->w),(((i - sampleRate) /sampleRate)%heightMap->h)/float(heightMap->h));
+                model->addColor(r/255.0,g/255.0,b/255.0);               
+        
+            }
+
+                for(int j = j1  ; j <= j2    ;  j += sampleRate)
+            {
+                int i = i1;
+                height =  hm->heights[j+sampleRate + i*(heightMap->w )];
+                model->addVertex(scaleX*(heightMap->h -i) + shiftX , ((double)(height)*scaleY) +shiftY ,scaleZ*(j) + shiftZ); // Top Right      
+                model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                model->addTexCoor(((j/sampleRate)%texRate)/texRatef,(((i)/sampleRate)%texRate)/texRatef, ((j/sampleRate)%heightMap->w)/float(heightMap->w),(((i)/sampleRate)%heightMap->h)/float(heightMap->h));
+                model->addColor(r/255.0,g/255.0,b/255.0);
+            
+            }
+            
+                
+            
+            for(int j = j1  ; j <= j2    ;  j += sampleRate)
+            {
+                int i = i2;
+            
+                 // To be fixed
+                 if(hm->hasColourMap)
+                 {
+                 r = (float)colours[3*j+2 + 3*i*(heightMap->w )];
+                 g = (float)colours[3*j+1 + 3*i*(heightMap->w)];
+                 b = (float)colours[3*j+0 + 3*i*(heightMap->w)];
+                 }
+                
+                model->addVertex(scaleX*(heightMap->h -i) + shiftX , shiftY ,scaleZ*(j) + shiftZ); // Top Right 
+                model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                model->addTexCoor(((j/sampleRate)%texRate)/texRatef,(((i- sampleRate)/sampleRate)%texRate)/texRatef, ((j/sampleRate)%heightMap->w)/float(heightMap->w),(((i - sampleRate)/sampleRate)%heightMap->h)/float(heightMap->h));
+                model->addColor(r/255.0,g/255.0,b/255.0);               
+        
+            }
+                    
+            
+            for(int j = j1 ; j <= j2    ;  j += sampleRate)
+            {
+                int i = i2;
+                height =  hm->heights[j+sampleRate + i*(heightMap->w )];
+                model->addVertex(scaleX*(heightMap->h -i) + shiftX , ((double)(height)*scaleY) +shiftY ,scaleZ*(j) + shiftZ); // Top Right      
+                model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                model->addTexCoor(((j/sampleRate)%texRate)/texRatef,((i/sampleRate)%texRate)/texRatef, ((j/sampleRate)%heightMap->w)/float(heightMap->w),((i/sampleRate)%heightMap->h)/float(heightMap->h));
+                model->addColor(r/255.0,g/255.0,b/255.0);
+            
+            }
+           
+
+        
+        
+         // link Boarder Stripe
+            for(int j = j1-sampleRate  ; j < j2    ;  j += sampleRate)
+            {
+                
+                model->addIndice(cnt);
+                model->addIndice(cnt  + (j2 -j1 +  sampleRate  )/ sampleRate );
+                cnt++;
+                
+            }
+                
+                cnt++;
+                
+                 model->newStripe();    
+                
+                
+        
+        
+        
+         cnt += (j2-j1)/ sampleRate;
+        
+        // link 2nd BoarderStripe
+            for(int j = j1-sampleRate  ; j < j2    ;  j += sampleRate)
+            {
+                
+                model->addIndice(cnt);
+                model->addIndice(cnt  + (j2 -j1 +  sampleRate  )/ sampleRate );
+                cnt++;
+                
+            }
+         
+            
+        
+         model->finalize();
+         
+         
+         
+         
+        #undef heightMap 
+        #undef colours   
+        #undef scaleX 
+        #undef scaleY 
+        #undef scaleZ 
+        #undef shiftX 
+        #undef shiftY 
+        #undef shiftZ 
+        #undef normalVectorField 
+         
+}
 
 HeightMap::HeightMap()
@@ -86 +344 @@
     generateNormalVectorField();
 
-
+  colourMap=NULL;
   if(colour_map_name != NULL)
   {
   colourMap = IMG_Load(colour_map_name);
+  }
   if(colourMap != NULL)
                 {
@@ -102 +361 @@
                  PRINTF(0)("Gmask: %i\n", colourMap->format->Gmask);
                  }
-                 else       PRINTF(4)("oops! couldn't load %s for some reason.\n", colour_map_name);
+                 else       PRINTF(0)("oops! couldn't load colorMap for some reason.\n");
 
                  
@@ -114 +373 @@
   
         
-  shiftX = 0;
-  shiftY = 0;
-  shiftZ = 0;
-  }
+   heights  = (unsigned char*) heightMap->pixels;
 
 
@@ -129 +385 @@
 {
 
-unsigned char height = 0;
- int offset = 0;
- int g = 0;
- 
-
- 
- heights  = (unsigned char*) heightMap->pixels;
-
-
-
- 
- if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )
-        
-        SDL_LockSurface(heightMap);
-
-     
-        for(int i = 0 ; i < heightMap->h -sampleRate ; i +=sampleRate)
-        {
-                int j = 0;
-
-                float r;
-                float g;
-                float b;
-            for(int j = 0 ; j < heightMap->w -sampleRate  ;  j += sampleRate)
-            {
-                 // To be fixed
-                 r = (float)colours[3*j+2 + 3*i*(heightMap->w )];
-                 g = (float)colours[3*j+1 + 3*i*(heightMap->w)];
-                 b = (float)colours[3*j+0 + 3*i*(heightMap->w)];
-                
-                        height =  heights[j+sampleRate + i*(heightMap->w )];
-                this->addVertex(scaleX*(heightMap->h -i) + shiftX ,((double)(height)*scaleY) + shiftY ,scaleZ*(j+sampleRate) + shiftZ); // Top Right
-
-        
-                this->addNormal(normalVectorField[i][j+sampleRate].y,normalVectorField[i][j+sampleRate].z,normalVectorField[i][j+sampleRate].x);
-                this->addTexCoor(((j/sampleRate)%texRate)/texRatef,((i/sampleRate)%texRate)/texRatef);
-
-                this->addColor(r/255.0,g/255.0,b/255.0);
-
-
-            }
-                
-            
-                 j = (heightMap->w/sampleRate - sampleRate);
-
-                this->addVertex(scaleX*(heightMap->h -i)+ shiftX,-1000.0,scaleZ*(j+sampleRate)+ shiftZ); // Top Right
-
-                this->addNormal(normalVectorField[i][j+sampleRate].y,normalVectorField[i][j+sampleRate].z,normalVectorField[i][j+sampleRate].x);
-                this->addTexCoor(((j/sampleRate)%4)/4.0,((i/sampleRate)%4)/4.0);
-                this->addColor(0.1,0.1,0.9);
-                                        
-
-                
-
-                }
-
-        SDL_UnlockSurface(heightMap);
-
-
-        int cnt = 0;
-        for(int i = 0 ; i < heightMap->h - 2*sampleRate ; i +=sampleRate)
-        {
-                
-            for(int j = 0 ; j < heightMap->w - sampleRate  ;  j += sampleRate)
-            {
-                
-                this->addIndice(cnt);
-                this->addIndice(cnt  + (heightMap->w)/ sampleRate );
-                cnt++;
-                
-            }
-                
-                cnt++;
-                 this->newStripe();     
-                
-                
+//Create a Dynamicly sized 2D-Array for Tiles
+tiles =  new Tile** [heightMap->h/tileSize];
+for(int i=0;i <    heightMap->h/tileSize ; i++)
+tiles [i]= new (Tile* [heightMap->w /tileSize ]);
+
+//SetUp Arrays
+for(int i = 0; i < (heightMap->h - tileSize )/ tileSize; i ++)
+{
+        for(int j = 0; j < (heightMap->w - tileSize )/ tileSize; j ++)
+        {
+         
+         tiles[i][j] =    new Tile( i*tileSize ,  j*tileSize , (i+1)*tileSize, (j+1)*tileSize , this ) ;
         }
-
-        this->finalize();
-
-
-}
-
-
-
-
+}
+
+}
+
+
+void HeightMap::draw() 
+{
+const PNode* camera = State::getCamera();
+Vector v = camera->getAbsCoor();
+
+int i_min = 1;
+int i_max = (heightMap->h - tileSize)/ tileSize;
+int j_min = 1;
+int j_max= (heightMap->w - tileSize) / tileSize;
+
+// calc i_min , i_max j_min and j_maxt 
+
+int centerX =  (int)((heightMap->h - ((v.x - shiftX)/ (float)scaleX ))/ tileSize);
+int  centerY = (int)((v.z - shiftZ)/ (float)scaleZ )/ tileSize;
+//PRINTF(0)("i_max %i \n" , i_max);
+//PRINTF(0)("CENTERY %i \n ",centerY );
+i_min = max(centerX  -1, i_min);
+i_max = min(centerX +2 , i_max );
+
+j_min = max(centerY -1,1);
+j_max = min(centerY +2, j_max);
+
+
+for(int i = 1; i <  i_min        ; i ++)
+{
+        for(int j = 1; j < j_max ; j++)
+        {
+                
+         tiles[i][j]->drawLowRes();
+        }       
+} 
+for(int i = i_min; i <  i_max    ; i ++)
+{
+        for(int j = j_min; j < j_max ; j++)
+        {
+                
+         tiles[i][j]->drawHighRes();
+        }       
+}
+
+for(int i = i_max; i <  (heightMap->h -tileSize)/tileSize        ; i ++)
+{
+        for(int j = 1; j < j_max ; j++)
+        {
+                
+         tiles[i][j]->drawLowRes();
+        }       
+}
+
+
+for(int i = 1; i < (heightMap->h -tileSize)/tileSize; i++ )
+{
+        for(int j = 1; j < j_min; j++)
+        {
+         tiles[i][j]->drawLowRes();
+        }
+}
+for(int i = 1; i < (heightMap->h -tileSize)/tileSize; i++) 
+{
+        for(int j = j_max; j < (heightMap->w -tileSize)/tileSize; j++ )
+        {
+        tiles[i][j]->drawLowRes();
+        }
+}
+
+}
 void HeightMap::generateNormalVectorField()
 {
@@ -227 +481 @@
 
 
-// !!! Does not yet calculate any normals for some border points!!!!!
+// !!! Does not yet calculate the normals of some border points!!!!!
 
 if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )