EgtGraphics :

- aggiunta gestione primitiva delle textures.
2015-09-28 16:13:42 +00:00
parent a2c5908a7e
commit b839d7ac36
8 changed files with 406 additions and 1 deletions
@@ -414,8 +414,61 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
      glLoadName( iIter.GetId()) ;
   }

+  // eventuale texture
+   string sTxtName ;
+   if ( iIter.GetInfo( "!TXT", sTxtName)) {
+
+      Frame3d frRef ;
+      iIter.GetGlobFrame( frRef) ;
+
+      GLuint texName ; 
+      double dTextDimS = 400 ;
+      double dTextDimT = 200 ;
+      m_TextMgr.GetTextureData( sTxtName, texName, dTextDimS, dTextDimT) ;
+
+      glEnable( GL_TEXTURE_2D) ;
+      glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) ; 
+      glBindTexture( GL_TEXTURE_2D, texName) ;
+
+      GLfloat     PlaneS[4] ;
+      GLfloat     PlaneT[4] ;
+      Point3d ptOri(-4009.4378,-2415.5604,0) ;
+      ptOri.ToLoc( frRef) ;
+      Vector3d vtX = X_AX ;
+      vtX.ToLoc( frRef) ;
+      //vtX.Rotate( Z_AX, 30) ;
+      Vector3d vtY = Y_AX ;
+      vtY.ToLoc( frRef) ;
+      //vtY.Rotate( Z_AX, 30) ;
+     // creo piano per la S
+      PlaneS[0] = GLfloat( vtX.x / dTextDimS) ;
+      PlaneS[1] = GLfloat( vtX.y / dTextDimS) ;
+      PlaneS[2] = GLfloat( vtX.z / dTextDimS) ;
+      PlaneS[3] = GLfloat( - vtX * ( ptOri - ORIG) / dTextDimS) ;
+     // creo piano per la T 
+      PlaneT[0] = GLfloat( vtY.x / dTextDimT) ;
+      PlaneT[1] = GLfloat( vtY.y / dTextDimT) ;
+      PlaneT[2] = GLfloat( vtY.z / dTextDimT) ;
+      PlaneT[3] = GLfloat( - vtY * ( ptOri - ORIG) / dTextDimT) ;
+     // setto generazione texture automatica
+      glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR) ;
+      glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR) ;
+      glTexGenfv( GL_S, GL_OBJECT_PLANE, PlaneS) ;
+      glTexGenfv( GL_T, GL_OBJECT_PLANE, PlaneT) ;
+
+      glEnable( GL_TEXTURE_GEN_S) ;
+      glEnable( GL_TEXTURE_GEN_T) ;
+   }
+    
  // eseguo visualizzazione
-   return pGraphics->Draw( siObj.nStat, siObj.nMark, bSurfSha, nAlpha, bShowAux) ;
+   bool bOk = pGraphics->Draw( siObj.nStat, siObj.nMark, bSurfSha, nAlpha, bShowAux) ;
+
+  // !!! per textures !!!
+   glDisable( GL_TEXTURE_GEN_S)  ;
+   glDisable( GL_TEXTURE_GEN_T)  ;
+   glDisable( GL_TEXTURE_2D)  ;
+
+   return bOk ;
 }

 //----------------------------------------------------------------------------