fix bg color

Fltk/openglWindow.cpp

@@ -35,7 +35,6 @@ static void lassoZoom(drawContext *ctx, mousePosition &click1, mousePosition &cl
   ctx->initPosition();
   drawContext::global()->draw();
   FlGui::instance()->manip->update();  
-    
 }
 
 openglWindow::openglWindow(int x, int y, int w, int h, const char *l)
@@ -190,17 +189,15 @@ void openglWindow::draw()
   }
   else{
     // draw the whole scene
-    /*
     glClearColor
       ((GLclampf)(CTX::instance()->unpackRed(CTX::instance()->color.bg) / 255.),
        (GLclampf)(CTX::instance()->unpackGreen(CTX::instance()->color.bg) / 255.),
        (GLclampf)(CTX::instance()->unpackBlue(CTX::instance()->color.bg) / 255.), 
        0.0F);
-    */
     glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
-    Camera *  cam= &(_ctx->camera);      
    
     if(CTX::instance()->camera && !CTX::instance()->stereo){
+      Camera *cam = &(_ctx->camera);
       if (!cam->on) cam->init();
       cam->giveViewportDimension(_ctx->viewport[2],_ctx->viewport[3]);  
       glMatrixMode(GL_PROJECTION);
@@ -220,11 +217,8 @@ void openglWindow::draw()
       _drawBorder();
       //    glPushMatrix();
     }
-
-
-
-
     else if(CTX::instance()->stereo){
+      Camera *cam = &(_ctx->camera);
       if (!cam->on) cam->init();
       cam->giveViewportDimension(_ctx->viewport[2],_ctx->viewport[3]);  
 
@@ -271,7 +265,6 @@ void openglWindow::draw()
       glAccum(GL_RETURN,1.0);
       */   
       
-      
       //right eye
       XYZ eye = cam->eyesep / 2.0* cam->right;
       glMatrixMode(GL_PROJECTION);
@@ -313,7 +306,6 @@ void openglWindow::draw()
       _ctx->draw2d();
       _drawScreenMessage();
       _drawBorder();
-    
     }
     else{
       _ctx->draw3d();