Changeset 8744 in orxonox.OLD for branches/terrain/src

Timestamp:

Jun 23, 2006, 3:22:53 PM (18 years ago)

Author:

ponder

Message:

• A few more properties can be specified in the .oxw file for the terrain.
• several material-layers can be rendered now.
• there is still one crack appearing now and then.. need to isolate it and send him to hell.

Location:

branches/terrain/src

Files:

• lib/graphics/importer/terrain/terrain.cc (modified) (5 diffs)
• lib/graphics/importer/terrain/terrain.h (modified) (6 diffs)
• lib/graphics/importer/terrain/terrain_page.cc (modified) (1 diff)
• world_entities/terrain_entity.cc (modified) (4 diffs)

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

@@ -32 +32 @@
         pagesX = (heightfield.width/(pageSize-1) );
         pagesZ = (heightfield.height/(pageSize-1) );
+        
         //TODO: Determine layer visibility!     
-        for ( unsigned int i = 0; i < materials.size(); ++i ) {
-                
-        }
+        for ( unsigned int i = 0; i < layers.size(); ++i ) {
+                
+        }
+        
         pages = new pTerrainPage[pagesX*pagesZ];        
         for ( int x = 0; x < pagesX; ++x )
@@ -155 +157 @@
 void Terrain::draw( )
 {
-        static float s = 0.0f;
         glGetError();
         pTerrainPage page = NULL;
@@ -228 +229 @@
                 page = page->getNext();
         }
-        //Finish the last buffer
+        //If there is some data in the buffer, we need to upload the data
+        //into the vram...
         if ( buffers[current].numIndices != 0 ) {
                 BufferInfo bi = buffers[current];       
@@ -239 +241 @@
         }
         glPushAttrib( GL_COLOR_BUFFER_BIT );
-        for ( unsigned int i = 0; i < materials.size(); ++i ) {
+        glEnable( GL_BLEND );
+        glDepthFunc( GL_LEQUAL );
+        glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+        for ( unsigned int i = 0; i < layers.size(); ++i ) {
+                LayerInfo* layer= layers[i];
                 page = activePages;     
-                
-                //This is a hack! Remove this as soon as possible
-                materials[i]->unselect();
-                materials[i]->select();
-                
+                                
                 glActiveTextureARB( GL_TEXTURE1_ARB );
                 glClientActiveTextureARB( GL_TEXTURE1_ARB );
-                glMatrixMode( GL_TEXTURE );
-                glLoadIdentity();
-                glScalef( pagesX, pagesZ, 1.0f );
+                if ( layer->detail ) {
+                        //glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND );
+                        glEnable( GL_TEXTURE_2D );
+                        glBindTexture( GL_TEXTURE_2D, layer->detail->getTexture() );
+                        glMatrixMode( GL_TEXTURE );
+                        glLoadIdentity();
+                        glScalef( layer->repeatX, layer->repeatZ, 1.0f );
+                }       
+                else {
+                        glDisable( GL_TEXTURE_2D );
+                }
 
                 glClientActiveTextureARB( GL_TEXTURE0_ARB );
                 glActiveTextureARB( GL_TEXTURE0_ARB );
+                glEnable( GL_TEXTURE_2D );
+                if ( layer->alpha ) {
+                        //glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND );                   
+                        glBindTexture( GL_TEXTURE_2D, layer->alpha->getTexture() );
+                }
+                else {
+                
+                        glBindTexture( GL_TEXTURE_2D, lightmap->getTexture() );                 
+                }
                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );                         
                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
@@ -280 +299 @@
         }
         
-        //Get rid of the buffers
-        
         for ( unsigned int i = 0; i < buffers.size(); ++i )
                 broker->release( buffers[i].vbIdentifier, buffers[i].ibIdentifier );
+                
         buffers.clear();
                 
         glClientActiveTextureARB( GL_TEXTURE1_ARB );    
+        glActiveTextureARB( GL_TEXTURE1_ARB );
+        glDisable( GL_TEXTURE_2D );
         glDisableClientState( GL_VERTEX_ARRAY );
         glDisableClientState( GL_TEXTURE_COORD_ARRAY ); 
         glDisableClientState( GL_VERTEX_ARRAY );
         glDisableClientState( GL_TEXTURE_COORD_ARRAY ); 
-        materials[0]->unselect();
         glActiveTextureARB( GL_TEXTURE0_ARB );
         glClientActiveTextureARB( GL_TEXTURE0_ARB );    

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

@@ -26 +26 @@
 #include <cstdlib>
 #include <string>
-#include <list>
-#include "material.h"
+#include <vector>
 #include "texture.h"
 #include "frustum.h"
 
-
-typedef struct {
+class Terrain;
+typedef Terrain *pTerrain;
+        
+struct Heightfield {
         int                     width;
         int                     height;
         int                             pitch;
         UByte                   *data;
-} Heightfield, *pHeightfield;
+};
+
+struct LayerInfo {
+
+        int                             envmode;
+        float                   repeatX,
+                                        repeatZ;
+        Texture                 *alpha;
+        Texture                 *detail;
+        
+};
 
 struct BufferInfo {
-        
-        unsigned int    vbIdentifier,
-                                        ibIdentifier,
-                                        numIndices,
-                                        numVertices;
         
         BufferInfo( unsigned int _vb, unsigned int _ib, 
@@ -58 +64 @@
                 vbIdentifier = ibIdentifier = numIndices = numVertices = 0;
         }
-};
-
-
-class Terrain;
-
-typedef Terrain *pTerrain;
-
-class TerrainPage;
+        unsigned int    vbIdentifier,
+                                        ibIdentifier,
+                                        numIndices,
+                                        numVertices;    
+};
+
 
 class Terrain {
@@ -99 +103 @@
                 void getAltitude( Triple& _alt, Triple& _normal );
                 
+                inline void setLightmap( Texture *_lightmap )
+                {
+                        lightmap = _lightmap;
+                }
                 //What a bad name: Need to rename that :(
                 void addLevelFourPage( int _numVertices, Vertex *_vertices, 
@@ -147 +155 @@
                 inline float getAltitude( int _x, int _z ) const;
                 
-                inline void addMaterial( Material *_material )
-                {
-                        materials.push_back( _material );
-                }
-                
-                /*inline void setLightmap( const std::string &_lightmap )
-                {
-                        lightmapSource = _lightmap;
-                }*/
+                inline void addMaterialLayer( LayerInfo *_layer )
+                { layers.push_back( _layer ); }
+                
                 inline void setHeightmap( const std::string &_heightmap ) 
                 { 
@@ -215 +217 @@
                 pTerrainPage                            *pages;         // the references to all pages
                 std::string                                     heightmapSource;
-                std::string                                     lightmapSource;
+                Texture                                         *lightmap;
                 Heightfield                                     heightfield;
                 Triple                                          scale;
@@ -236 +238 @@
                 pFrustum                                        frustum;
                 pTerrainPage                            activePages;
-                std::vector<Material*>          materials;
+                std::vector<LayerInfo*>         layers;
 };
 

branches/terrain/src/lib/graphics/importer/terrain/terrain_page.cc

@@ -713 +713 @@
                 
         assert( isVisible ); assert( numIndices > 0 );
-        assert( active );
         active = false;
         CHECK_GL_ERROR( "1" );  

branches/terrain/src/world_entities/terrain_entity.cc

@@ -115 +115 @@
 void TerrainEntity::loadParams(const TiXmlElement* root)
 {
-        WorldEntity::loadParams(root);
+        WorldEntity::loadParams( root );
 
         LoadParam(root, "scale", this, TerrainEntity, setScale)
                 .describe("The scale in x,y,z direction");
         
-        LoadParam( root, "lightmap", this, TerrainEntity, loadLightmap )
+        LoadParam( root, "light_map", this, TerrainEntity, loadLightmap )
                 .describe("The name of the lightmap.");
                 
-        LoadParam( root, "elevationmap", this, TerrainEntity, loadElevationmap )
+        LoadParam( root, "elevation_map", this, TerrainEntity, loadElevationmap )
                 .describe( "The name of the elevation map. Must be an 8bit image" );
-                
+        ResourceManager *manager = ResourceManager::getInstance();
+        TiXmlElement * layer = (TiXmlElement*)root->FirstChild( "material_layer" );             
+        while ( layer ) {
+                LayerInfo *info = new LayerInfo();
+                TiXmlElement *detail = (TiXmlElement*)layer->FirstChild( "detail_map" );
+                if ( detail ) {
+                        string detailmap( detail->Attribute( "file" ) );
+                        info->detail = (Texture*)manager->load( detailmap, 
+                                IMAGE, RP_GAME, (int)GL_TEXTURE_2D );                   
+                        if ( !info->detail ) {
+                                PRINTF(0)( "%s not found\n", detailmap.c_str() );
+                        }       
+                        TiXmlElement *repeat = (TiXmlElement*)detail->FirstChild( "repeat" );
+                        if ( repeat ) {
+                                repeat->QueryFloatAttribute( "x", &info->repeatX );
+                                repeat->QueryFloatAttribute( "z", &info->repeatZ );                             
+                        }
+                }
+                else {
+                        PRINTF(0)( "Please specify a detail-map" );
+                }
+                TiXmlElement *alpha = (TiXmlElement*)layer->FirstChild( "alpha" );
+                if ( alpha ) {
+                                if ( !alpha->Attribute( "full" ) ) {
+                                        string alphamap( alpha->Attribute( "file" ) );
+                                        info->alpha = (Texture*)manager->load( alphamap, 
+                                                IMAGE, RP_GAME, (int)GL_TEXTURE_2D );
+                                }
+                }       
+                terrain->addMaterialLayer( info );
+                layer = (TiXmlElement*)layer->NextSibling( "material_layer" );
+        }
 }
 
@@ -140 +171 @@
 void TerrainEntity::loadLightmap( const std::string& _lightFile )
 {
-        Material *mat = new Material( "TERR_LM" );
-        mat->setDiffuse( 1.0f, 1.0f, 1.0f );
-        mat->setAmbient( 1.0f, 1.0f, 1.0f );
-        mat->setDiffuseMap( _lightFile, GL_TEXTURE_2D, 0 );     
-        mat->setDiffuseMap( std::string( "pictures/debug.png" ), GL_TEXTURE_2D, 1 );    
-        terrain->addMaterial( mat );
+        ResourceManager *manager = ResourceManager::getInstance();
+        Texture *lightmap = (Texture*)manager->load( _lightFile, 
+                IMAGE, RP_GAME, (int)GL_TEXTURE_2D );   
+        if ( lightmap ) 
+                terrain->setLightmap( lightmap );
+        else
+                PRINTF(0)("no lightmap %s\n", _lightFile.c_str() );
 }
 
@@ -173 +205 @@
         glPushMatrix();
 
-  /* translate */
    glTranslatef( this->getAbsCoor().x,
                  this->getAbsCoor().y,
@@ -184 +215 @@
                 terrain->draw( );
         }
-
         glPopMatrix();
-  /*
-    glMatrixMode(GL_MODELVIEW);
-    glPushMatrix();
-    glLoadIdentity();
-    Vector camera =   State::getCameraNode()->getAbsCoor(); // Go on here ..........!!!
-
-    float height =    heightMap->getHeight(camera.x, camera.z);
-
-    glEnable (GL_COLOR_MATERIAL) ;
-    glBegin(GL_QUADS);            // Draw The Cube Using quads
-    glColor3f(0.0f,1.0f,0.0f);  // Color Blue
-    glVertex3f(camera.x + 63.0f,TerrainEntity->getHeight(camera.x+63.0f, camera.z-10.0f)+13.0f,camera.z-10.0f);      // Top Right Of The Quad (Top)
-    glVertex3f(camera.x-63.0f, getHeight(camera.x+63.0f, camera.z-10.0f)+13.0f,camera.z-10.0f);      // Top Left Of The Quad (Top)
-    glVertex3f(camera.x-63.0f, getHeight(camera.x+63.0f, camera.z+10.0f)+13.0f, camera.z+10.0f);      // Bottom Left Of The Quad (Top)
-    glVertex3f(camera.x+ 63.0f, getHeight(camera.x+63.0f, camera.z+10.0f)+13.0f, camera.z+10.0f);      // Bottom Right Of The Quad (Top)
-    glEnd();                      // End Drawing The Plan
-
-    glPopMatrix();*/
+
 
 }