Changeset 6227 in orxonox.OLD for branches/height_map/src/lib/graphics/importer

Timestamp:

Dec 21, 2005, 2:22:59 PM (19 years ago)

Author:

bottac

Message:

getHeight implemented
support for 'colour maps'

Location:

branches/height_map/src/lib/graphics/importer

Files:

• height_map.cc (modified) (6 diffs)
• height_map.h (modified) (1 diff)

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

@@ -10 +10 @@
 
    ### File Specific:
-   main-programmer: 
+   main-programmer: bottac@ee.ethz.ch
 */
 
@@ -17 +17 @@
 #include "texture.h"
 #include "vector.h"
+#include "material.h"
+#include "p_node.h"
+#include "state.h"
+#include "resource_manager.h"
 
 #include "debug.h"
@@ -27 +31 @@
 #endif
 
-HeightMap::HeightMap() : StaticModel()
-{
-        
-}
-
-HeightMap::HeightMap(const char* height_map_name = NULL) : StaticModel()
+HeightMap::HeightMap()
+{
+
+}
+
+HeightMap::HeightMap(const char* height_map_name = NULL) 
 {
    this->setClassID(CL_HEIGHT_MAP, "HeightMap");
@@ -50 +54 @@
                  
      else       PRINTF(4)("oops! couldn't load %s for some reason.\n", height_map_name);
-}
-
-
+
+                
+           generateNormalVectorField();
+           
+           
+ //Defines 2 Materials (for testing only!)
+ this->tmp_mat = new Material(); 
+  tmp_mat->setTransparency(1.0);
+  tmp_mat->setIllum(0.3);
+  tmp_mat->setDiffuse(0.55,0.4,0.2);
+  tmp_mat->setAmbient(0.6,0.4,0.2);
+  tmp_mat->setSpecular(0.02,0.02,0.02);
+  tmp_mat->setShininess(.1);
+  tmp_mat->setTransparency(1.0);
+
+  tmp_mat->diffuseTexture = NULL;
+  tmp_mat->ambientTexture = NULL;
+  tmp_mat->specularTexture = NULL;
+
+ this->red_mat = new Material(); 
+  red_mat->setTransparency(1.0);
+  red_mat->setIllum(0.3);
+  red_mat->setDiffuse(0.55,0.1,0.1);
+  red_mat->setAmbient(0.55,0.1,0.1);
+  red_mat->setSpecular(0.02,0.02,0.02);
+  red_mat->setShininess(.1);
+  red_mat->setTransparency(1.0);
+
+  red_mat->diffuseTexture = NULL;
+  red_mat->ambientTexture = NULL;
+  red_mat->specularTexture = NULL;
+
+}
+
+HeightMap::HeightMap(const char* height_map_name = NULL, const char* colour_map_name = NULL) 
+{
+this->setClassID(CL_HEIGHT_MAP, "HeightMap");
+
+   heightMap =  IMG_Load(height_map_name);
+   if(heightMap!=NULL) {
+        
+                 PRINTF(0)("loading Image %s\n", height_map_name);
+                 PRINTF(0)("width : %i\n", heightMap->w);
+                 PRINTF(0)("hight : %i\n", heightMap->h);
+                 PRINTF(0)("%i Byte(s) per Pixel \n", heightMap->format->BytesPerPixel);
+                 PRINTF(0)("Rshift : %i\n", heightMap->format->Rshift);
+                 PRINTF(0)("Bshift: %i\n", heightMap->format->Bshift);
+                 PRINTF(0)("Gshift: %i\n", heightMap->format->Gshift);
+                 PRINTF(0)("Rmask: %i\n", heightMap->format->Rmask);
+                 PRINTF(0)("Gmask: %i\n", heightMap->format->Gmask);            
+                }
+                 
+     else       PRINTF(4)("oops! couldn't load %s for some reason.\n", height_map_name);
+
+                
+           generateNormalVectorField();
+           
+           
+ //Defines 2 Materials (for testing only!)
+ this->tmp_mat = new Material("tmp"); 
+  tmp_mat->setTransparency(1.0);
+  tmp_mat->setIllum(0.3);
+  tmp_mat->setDiffuse(1.0,1.0,1.0);
+ tmp_mat->setAmbient(1.0,1.0,1.0);
+
+  tmp_mat->setSpecular(0.0,0.00,0.00);
+  tmp_mat->setShininess(1.0);
+ 
+
+
+
+ this->red_mat = new Material("red"); 
+  red_mat->setTransparency(1.0);
+  red_mat->setIllum(3);
+  red_mat->setDiffuse(0.55,0.1,0.1);
+  red_mat->setAmbient(0.55,0.1,0.1);
+  red_mat->setSpecular(0.0,0.0,0.0);
+  red_mat->setShininess(1.0);
+  red_mat->setTransparency(1.0);
+
+ // red_mat->diffuseTexture = NULL;
+ // red_mat->ambientTexture = NULL;
+  //red_mat->specularTexture = NULL;
+  
+  if(colour_map_name != NULL)
+  {
+  colourMap = IMG_Load(colour_map_name);
+  if(colourMap != NULL)
+                {
+                 PRINTF(0)("loading Image %s\n", colour_map_name);
+                 PRINTF(0)("width : %i\n", colourMap->w);
+                 PRINTF(0)("hight : %i\n", colourMap->h);
+                 PRINTF(0)("%i Byte(s) per Pixel \n", colourMap->format->BytesPerPixel);
+                 PRINTF(0)("Rshift : %i\n", colourMap->format->Rshift);
+                 PRINTF(0)("Bshift: %i\n", colourMap->format->Bshift);
+                 PRINTF(0)("Gshift: %i\n", colourMap->format->Gshift);
+                 PRINTF(0)("Rmask: %i\n", colourMap->format->Rmask);
+                 PRINTF(0)("Gmask: %i\n", colourMap->format->Gmask);
+                 }
+                 else       PRINTF(4)("oops! couldn't load %s for some reason.\n", colour_map_name);
+                 
+  const  char* texture_name = "pictures/ground1.tga";
+  tmp_mat->setDiffuseMap(texture_name);
+  if(colourMap != NULL)
+  {
+  colours = (unsigned char *) colourMap->pixels;
+  hasColourMap = true;
+  }
+  else
+  {
+  hasColourMap = false;
+  
+ 
+  }
+  
+ // tmp_mat->setAmbientMap(texture_name);
+  //tmp_mat->setSpecularMap(texture_name);
+  
+  // red_mat->setDiffuseMap(texture_name);
+  // red_mat->setAmbientMap(texture_name);
+  //red_mat->setSpecularMap(texture_name);                              
+  }
+  
+ 
+}
 HeightMap::~HeightMap()
 {
@@ -60 +186 @@
 void HeightMap::load()
 {
- unsigned char height = 0; 
+
+}
+
+
+void HeightMap::draw() 
+{
+
+this->camera = State::getCamera();
+this->camCoords = this->camera->getAbsCoor();
+float x = this->camCoords.x + 300;
+float y = this->camCoords.z  + 100;
+
+// Draw a red rectangle to test getHeight
+
+red_mat->select();
+glBegin(GL_TRIANGLE_STRIP);
+glNormal3f(0,1,0);
+glTexCoord2d(1.0,0.0);
+ glVertex3f(x-10,getHeight(x-10,y+10)+5.0f       ,y+10); // Top Left
+ 
+
+glNormal3f(0,1,0);
+glTexCoord2d(1.0,1.0);
+ glVertex3f(x+10,getHeight(x+10,y+10)+5.0f ,y+10); // Top Left
+ 
+
+glNormal3f(0,1,0);
+glTexCoord2d(0.0,0.0);
+ glVertex3f(x-10,getHeight(x-10,y-10)+5.0f ,y-10); // Top Left
+ 
+
+glNormal3f(0,1,0);
+glTexCoord2d(0.0,1.0);
+ glVertex3f(x+10,getHeight(x+10,y-10)+5.0f ,y-10); // Top Left
+ 
+glEnd();
+
+tmp_mat->select();
+
+unsigned char height = 0; 
  int offset = 0;
-
- char *  bmp = (char*) heightMap->pixels;
-
+ int g = 0;
+ float old_r = 0.0f;
+ float old_g = 0.0f;
+ float old_b = 0.0f;
+ heights  = (unsigned char*) heightMap->pixels;
+
+ bool colourChanged = true;
+ 
   if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )
         {
         SDL_LockSurface(heightMap);
-        for(int i = 0 ; i < heightMap->h  ; i +=2)
-        {
-            for(int j = 0; j < heightMap->w   ;  j += 2)
+
+                
+        for(int i = 0 ; i < heightMap->h -sampleRate ; i +=sampleRate)
+        {
+
+
+
+                   glBegin(GL_TRIANGLE_STRIP);  
+                int j = 0;
+        
+/*
+                height = heights[j + i*(heightMap->w )];
+                glNormal3f(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                glVertex3f(20*(heightMap->h -(i))-1000,(double)((double)(height)/1-300),20*(j)-1000); // Top Left
+
+                        height = heights[j + (i+2)*(heightMap->w )];
+                glNormal3f(normalVectorField[i+2][j].y,normalVectorField[i+2][j].z,normalVectorField[i+2][j].x);
+                glVertex3f(20*(heightMap->h -(i+2))-1000,(double)((double)(height)/1-300),20*(j)-1000); // Bottom Left
+*/
+                
+
+            for(int j = 0 ; j < heightMap->w -sampleRate  ;  j += sampleRate)
             {
-                // get local hight from heightMap
-                // This seems to work only on 8-Bit Grayscale-Bitmaps
-                height = bmp[j + i*(heightMap->w )];
-                
-                        
-                /*height = heightMap->format->palette->colors[offset].r +
-                           heightMap->format->palette->colors[offset].g +
-                           heightMap->format->palette->colors[offset].b ; */
-                                        
-                                
-                this->addVertex( 20*(heightMap->h - i) , (( (double)height)/0.3)-1200  ,20*j);
+                if(hasColourMap)
+                {
+                float r = (float)colours[3*j+2  + 3*i*(heightMap->w )];
+                float g = (float)colours[3*j+1 + 3*i*(heightMap->w)];
+                float b = (float)colours[3*j+0 + 3*i*(heightMap->w)];
+                colourChanged = old_r != r || old_g != g || old_b != b;
+                old_r = r;
+                old_g = g;
+                old_b = b;
+                if(colourChanged)
+                {
+                 tmp_mat->setAmbient(r/255.0,g/255.0,b/255.0);
+                 tmp_mat->setDiffuse(r/255.0,g/255.0,b/255.0);
+                tmp_mat->select();      
+                }
+                }
+                
+                if(true/*(abs(-scaleX*i-x+5000) > 1100 || abs(scaleZ*j-y-2000)  > 1100 )*/){ //subdivide??
+                
+                height = heights[j+sampleRate + i*(heightMap->w )];
+                glNormal3f(normalVectorField[i][j+sampleRate].y,normalVectorField[i][j+sampleRate].z,normalVectorField[i][j+2].x);
+                glTexCoord2f(((j/sampleRate)%4)/4.0,((i/sampleRate)%4)/4.0);
+                ///glTexCoord2f(1.0,1.0);
+                glVertex3f(scaleX*(heightMap->h -i),(double)((double)(height)*scaleY),scaleZ*(j+sampleRate)); // Top Right              
+                                
+                height = heights[j+sampleRate + (i+sampleRate)*(heightMap->w )];
+                glNormal3f(normalVectorField[i+sampleRate][j+sampleRate].y,normalVectorField[i+sampleRate][j+sampleRate].z,normalVectorField[i+sampleRate][j+sampleRate].x);
+                glTexCoord2f(((j/sampleRate)%4)/4.0,1/4.0+((i/sampleRate)%4)/4.0);
+                //glTexCoord2f(0.0,0.0);
+                glVertex3f(scaleX*(heightMap->h -(i+sampleRate)),(double)((double)(height)*scaleY),scaleZ*(j+sampleRate)); // Bottom Right
+ 
+        
+
+        /*
+                                height = heights[j+2 + (i+2)*(heightMap->w )];
+                glNormal3f(normalVectorField[i+2][j+2].y,normalVectorField[i+2][j+2].z,normalVectorField[i+2][j+2].x);
+                glVertex3f(20*(heightMap->h -(i+2)),(double)((double)(height)/1-300),20*(j+2)); // Bottom Right
+
+
+                             height = heights[j + i*(heightMap->w )];
+                glNormal3f(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x);
+                glVertex3f(20*(heightMap->h -(i)),(double)((double)(height)/1-300),20*(j)); // Top Left
+
+        */
+                g=j;
+
+
+                }
+                else
+                {
+                        //red_mat->select();
+                        //glEnd();
+                        
+                        
+                        
+                        glBegin(GL_TRIANGLE_STRIP);     
+                        
+                                drawRect(j,i+sampleRate/2,j+sampleRate/2,i);
+                        glEnd();
+                        glBegin(GL_TRIANGLE_STRIP);
+                                
+                                
+                                drawRect(j+sampleRate/2,i+sampleRate/2,j+sampleRate,i);
+                        glEnd();
+                        glBegin(GL_TRIANGLE_STRIP);
+                                
+                        
+                                drawRect(j,i+sampleRate,j+sampleRate/2,i+sampleRate/2);
+                        glEnd();
+                        glBegin(GL_TRIANGLE_STRIP);
+                                drawRect(j+sampleRate/2,i+sampleRate,j+sampleRate,i+sampleRate/2);
+                        
+                        glEnd();
+                        
+                        /*glBegin(GL_TRIANGLE_STRIP);
+
+                height = heights[j+sampleRate + i*(heightMap->w )];
+                glNormal3f(normalVectorField[i][j+sampleRate].y,normalVectorField[i][j+sampleRate].z,normalVectorField[i][j+sampleRate].x);
+                glVertex3f(scaleX*(heightMap->h -i),(double)((double)(height)*scaleY),scaleZ*(j+sampleRate)); // Top Right              
+                
+
+                height = heights[j+sampleRate + (i+sampleRate)*(heightMap->w )];
+                glNormal3f(normalVectorField[i+sampleRate][j+sampleRate].y,normalVectorField[i+sampleRate][j+sampleRate].z,normalVectorField[i+sampleRate][j+sampleRate].x);
+                glVertex3f(scaleX*(heightMap->h -(i+sampleRate)),(double)((double)(height)*scaleY),scaleZ*(j+sampleRate)); // Bottom Right
+                */      
+
+                        
+                        
+                        //subdivide
+                }
+
+        
+
              }  
+                glEnd();        
+           
         }
         SDL_UnlockSurface(heightMap);
-
-
-
-        int c = (heightMap->w)/2 ; // One line
-        for(int i = 0; i < (heightMap->w)/2  -2  ; i ++)
-        {
-            for(int j = 0; j < (heightMap->h)/2 - 2; j++)
+        
+}
+
+
+/*      int c = (heightMap->w)/4 ; // One line
+        for(int i = 0; i < (heightMap->w)/4  -4  ; i ++)
+        {
+            for(int j = 0; j < (heightMap->h)/4 - 4; j++)
             {
-                 
-                /* Two Triangles or ...*/ 
-                
-                //this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j+1+i*c , j + i*c );
-                //this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j + (i+1)*c +1 ,j+i*c +1 );                         
-                                 
-                /* ... one square*/
-
-                this->addFace (4 ,VERTEX_ONLY,j+i*c,j+(i+1)*c  ,j + (i+1)*c +1, j +i*c+1 );
+                
+                this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j+1+i*c , j + i*c );
+                this->addFace (3, VERTEX_ONLY,j + (i+1)*c,j + (i+1)*c +1 ,j+i*c +1 );                           
+                         
+                
             }
                                 
@@ -108 +378 @@
                                 
         }
-                
-
-        }//if
-  else
-        { 
-
-  //make a cube
-  this->setName("HardCore");
-  this->addVertex (-0.5, -0.5, 0.5);
-  this->addVertex (0.5, -0.5, 0.5);
-  this->addVertex (-0.5, 0.5, 0.5);
-  this->addVertex (0.5, 0.5, 0.5);
-  this->addVertex (-0.5, 0.5, -0.5);
-  this->addVertex (0.5, 0.5, -0.5);
-  this->addVertex (-0.5, -0.5, -0.5);
-  this->addVertex (0.5, -0.5, -0.5);
-        
-
-
-
-  this->addFace (3, VERTEX_ONLY, 4, 3, 2);
-
-        }
-      this->finalize();
-
-
-}
+
+*/
+}
+
+void HeightMap::generateNormalVectorField()
+{
+int delta = 1;
+heights  = (unsigned char*) heightMap->pixels;
+
+//Create a Dynamicly sized 2D-Array to store our normals
+normalVectorField =  new Vector* [heightMap->h];
+for(int i=0;i<heightMap->h;i++)
+normalVectorField [i]= new (Vector [heightMap->w]);
+
+
+
+// !!! Does not yet calculate any normals for some border points!!!!!
+
+if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 )
+        {
+        SDL_LockSurface(heightMap);
+        for(int i = 0 ; i < heightMap->h -1  ; i ++)
+        {
+            for(int j = 0; j < heightMap->w  -1  ;  j ++)
+            {
+                
+
+                delta = (int)heights[j + (i+1)*(heightMap->w )] -  (int) heights[j + i*(heightMap->w )];
+                Vector a =  Vector(-20.0,(float)delta  ,0.0f);
+        
+                delta = (int)heights[j+1 + i*(heightMap->w )] - (int)heights[j + i*(heightMap->w )];
+                Vector b =  Vector(0.0f,(float) delta ,20.0);
+                
+        
+                 normalVectorField[i][j] = b.cross(a);
+                 normalVectorField[i][j].normalize();
+        
+             }  
+        }
+        SDL_UnlockSurface(heightMap);
+
+}
+
+}
+
+void HeightMap::drawRect(int xBottom, int yBottom, int xTop, int yTop )
+{
+        int height = 0;
+        if(true)
+        {
+                
+                height = heights[xTop + yTop*(heightMap->w )];
+                glNormal3f(normalVectorField[yTop][xTop].y,normalVectorField[yTop][xTop].z,normalVectorField[yTop][xTop].x);
+                glTexCoord2f(((yBottom/sampleRate)%8)/8.0+0.125,((xBottom/sampleRate)%8)/8.0+0.125);
+                glVertex3f(scaleX*(heightMap->h - yTop),(double)((double)(height)*scaleY),scaleZ*(xTop)); // Top Right
+
+                height = heights[xBottom + yTop*(heightMap->w )];
+                glNormal3f(normalVectorField[yTop][xBottom].y,normalVectorField[yTop][xBottom].z,normalVectorField[yTop][xBottom].x);
+                glTexCoord2f(((yBottom/sampleRate)%8)/8.0,((xBottom/sampleRate)%8)/8.0+0.125);
+                glVertex3f(scaleX*(heightMap->h -(yTop)),(double)((double)(height)*scaleY),scaleZ*(xBottom)); // Top Left
+                
+                height = heights[xTop + (yBottom)*(heightMap->w )];
+                glNormal3f(normalVectorField[yBottom][xTop].y,normalVectorField[yBottom][xTop].z,normalVectorField[yBottom][xTop].x);
+                glTexCoord2f(((yBottom/sampleRate)%8)/8.0+0.125,((yBottom/sampleRate)%8)/8.0);
+                glVertex3f(scaleX*(heightMap->h -(yBottom)),(double)((double)(height)*scaleY),scaleZ*(xTop)); // Bottom Right
+                
+height = heights[xBottom + (yBottom)*(heightMap->w )];
+                glNormal3f(normalVectorField[yBottom][xBottom].y,normalVectorField[yBottom][xBottom].z,normalVectorField[yBottom][xBottom].x);
+                glTexCoord2f(((yBottom/sampleRate)%8)/8.0,((yBottom/sampleRate)%8)/8.0);
+                glVertex3f(scaleX*(heightMap->h -(yBottom)),(double)((double)(height)*scaleY),scaleZ*(xBottom)); // Bottom Left
+
+                
+
+        }
+        else
+        {
+                // subdivide
+        }
+        
+}
+
+
+void HeightMap::fixBoarder(int xBottomLeft, int yBottomLeft, int xTopRight, int yTopRight)
+{
+
+        int height = 0;
+        
+        for(int i= xTopRight; i < xBottomLeft ; i+= sampleRate)
+        {
+        
+        glBegin(GL_TRIANGLES);
+                        
+                        height = heights[yBottomLeft + (i + sampleRate)*(heightMap->w )];
+                        glNormal3f(0,1,0);
+                        glVertex3f(scaleX*(heightMap->h -i-sampleRate),scaleY*height,scaleZ*(yBottomLeft));
+                        
+                        height = heights[yBottomLeft + i*(heightMap->w )];
+                        glNormal3f(0,1,0);
+                        glVertex3f(scaleX*(heightMap->h -i),scaleY*height,scaleZ*(yBottomLeft)); 
+                        
+                        height = heights[yBottomLeft + (i + sampleRate/2)*(heightMap->w )];
+                        glNormal3f(0,1,0);
+                        glVertex3f(scaleX*(heightMap->h -i - sampleRate/2),scaleY*height,scaleZ*(yBottomLeft)); 
+                        
+                         
+                        
+                        glEnd();
+                                
+                        
+                                
+        
+        }
+        for(int j= yBottomLeft; j < yTopRight; j+= sampleRate)
+        {
+                   glBegin(GL_TRIANGLES);
+                        height = heights[j + (xBottomLeft+sampleRate)*(heightMap->w )];
+                        glNormal3f(-1,0,0);
+                        glVertex3f(scaleX*(heightMap->h -xBottomLeft -sampleRate),scaleY*height,scaleZ*(j)); 
+                        
+                        height = heights[j + sampleRate/2  + (xBottomLeft + sampleRate)*(heightMap->w )];
+                        glNormal3f(-1,0,0);
+                        glVertex3f(scaleX*(heightMap->h -xBottomLeft - sampleRate),scaleY*height,scaleZ*(j+sampleRate/2)); 
+                        
+                        height = heights[j + sampleRate + (xBottomLeft + sampleRate)*(heightMap->w )];
+                        glNormal3f(-1,0,0);
+                        glVertex3f(scaleX*(heightMap->h -xBottomLeft-sampleRate),scaleY*height,scaleZ*(j+sampleRate)); 
+                        
+                        glEnd();
+        }
+}
+
+void HeightMap::scale(Vector v)
+{
+ scaleX = v.x;
+ scaleY = v.y;
+ scaleZ = v.z;
+}
+
+// Accepts Coordinates relative to HeightMap
+float HeightMap::getHeight(float x, float y)
+{
+ int xInt = (int)x / scaleX;  x -= (float)xInt*scaleX; xInt = heightMap->h - xInt;
+ int yInt = (int)y / scaleZ;    y -= (float)yInt*scaleZ;  
+ if(xInt <= 0 || xInt >= heightMap->h || yInt <= 0 || yInt >= heightMap->w  ) return 0.0f;
+ float height = heights[yInt + (xInt)*heightMap->w]*scaleY;
+ float a = normalVectorField[(xInt)][yInt].x;
+ float b = normalVectorField [(xInt)][yInt].z;
+ float c = normalVectorField [(xInt)][yInt].y;
+  height -= ( (a/c)*(x) + (b/c)*(y))*scaleY;
+ return height;
+}

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

@@ -14 +14 @@
 
 
-#include "static_model.h"
+#include "model.h"
+
+#define sampleRate 2
 
 class SDL_Surface;
 class Vector;
+class Material;
+class PNode;
+class Texture;
 
-class HeightMap : public StaticModel
+class HeightMap : public Model
 {
 public:
+void draw();
 void load();
-void load(const char*, int);
+void load(int Mode);
+void load(const char*, int Mode);
+void scale( Vector V); 
+float getHeight(float x, float y); // x,y relative to HeightMap
 HeightMap();
 HeightMap(const char*);
+HeightMap(const char*, const char*);
 ~HeightMap();
+
 
 private:
 SDL_Surface* heightMap;
+SDL_Surface* colourMap;
+unsigned char* heights; 
+unsigned char* colours;
+void generateNormalVectorField();
+void drawRect(int xBottomLeft, int yBottomLeft, int xTopRight, int yTopRight );
+void fixBoarder(int xBottomLeft, int yBottomLeft, int xTopRight, int yTopRight);
+Vector  **  normalVectorField ; 
+Vector     camCoords;
+Material * tmp_mat;
+Material* red_mat;
+Texture* texture;
+const PNode* camera;
+float scaleX ;
+float scaleY ;
+float scaleZ ;
+int   cmScaleX;
+int   cmScaleY;
+bool  hasColourMap;
+inline int abs(int val)
+{
+ if(val < 0) val = -val;
+ return val;
+}
 
 };