]> de.git.xonotic.org Git - xonotic/netradiant.git/blobdiff - contrib/gtkgensurf/view.cpp
Revert partially (auto) "reformat code! now the code is only ugly on the *inside*"
[xonotic/netradiant.git] / contrib / gtkgensurf / view.cpp
index ce99063c9b8c7ea8ba7d35111165c204c155842d..975c5cae366a53ff7ef65a680a3f7a3ec98d6fbe 100644 (file)
 
 extern double backface;
 extern double dh, dv;
-extern double xmin, xmax, ymin, ymax, zmin, zmax;
+extern double xmin,xmax,ymin,ymax,zmin,zmax;
 
 double SF, SFG;            // Graphics scale factors
 double XLo, XHi, YLo, YHi, ZLo, ZHi;
-double yaw, roll;
-double elevation, azimuth;
+double yaw,roll;
+double elevation,azimuth;
 int cxChar = 10, cyChar = 16;
 int X0, Y0;
 int X0G, Y0G;
 
 static Rect rcCoord;   // where X= Y= is drawn
 static Rect rcGrid;    // rectangle within rcLower that forms the border of the grid, plus
-//   a 3 pixel slop.
+                       //   a 3 pixel slop.
 static Rect rcLower;   // lower half of window, where plan view is drawn
 static Rect rcUpper;   // upper half or entire window, where isometric projection is drawn
 
 void vertex_selected();
-
 void texfont_init();
-
-void texfont_write(const char *text, int l, int t);
+void texfont_write( const char *text, int l, int t );
 
 #define PEN_GRID { \
-        g_GLTable.m_pfn_qglLineWidth( 1 ); \
-        g_GLTable.m_pfn_qglColor3f( 0, 1, 0 ); \
-        g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE ); }
+               g_GLTable.m_pfn_qglLineWidth( 1 ); \
+               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 ); \
+               g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE ); }
 
 #define PEN_RED { \
-        g_GLTable.m_pfn_qglLineWidth( 2 ); \
-        g_GLTable.m_pfn_qglColor3f( 1, 0, 0 ); \
-        g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE ); }
+               g_GLTable.m_pfn_qglLineWidth( 2 ); \
+               g_GLTable.m_pfn_qglColor3f( 1, 0, 0 ); \
+               g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE ); }
 
 #define PEN_DASH { \
-        g_GLTable.m_pfn_qglLineWidth( 1 ); \
-        g_GLTable.m_pfn_qglColor3f( 0, 1, 0 ); \
-        g_GLTable.m_pfn_qglLineStipple( 1, 0xF0F0 ); \
-        g_GLTable.m_pfn_qglEnable( GL_LINE_STIPPLE ); }
-
-#define DRAW_QUAD(rc, r, g, b) {    \
-        g_GLTable.m_pfn_qglBegin( GL_QUADS ); \
-        g_GLTable.m_pfn_qglColor3f( 0,1,0 ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.left - 1, rc.bottom ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.right, rc.bottom );    \
-        g_GLTable.m_pfn_qglVertex2i( rc.right, rc.top + 1 ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.left - 1, rc.top + 1 );    \
-        g_GLTable.m_pfn_qglColor3f( r,g,b ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.left, rc.bottom + 1 ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.right - 1, rc.bottom + 1 );    \
-        g_GLTable.m_pfn_qglVertex2i( rc.right - 1, rc.top ); \
-        g_GLTable.m_pfn_qglVertex2i( rc.left, rc.top );    \
-        g_GLTable.m_pfn_qglEnd(); }
+               g_GLTable.m_pfn_qglLineWidth( 1 ); \
+               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 ); \
+               g_GLTable.m_pfn_qglLineStipple( 1, 0xF0F0 ); \
+               g_GLTable.m_pfn_qglEnable( GL_LINE_STIPPLE ); }
+
+#define DRAW_QUAD( rc,r,g,b ) {        \
+               g_GLTable.m_pfn_qglBegin( GL_QUADS ); \
+               g_GLTable.m_pfn_qglColor3f( 0,1,0 ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.left - 1, rc.bottom ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.right, rc.bottom );     \
+               g_GLTable.m_pfn_qglVertex2i( rc.right, rc.top + 1 ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.left - 1, rc.top + 1 ); \
+               g_GLTable.m_pfn_qglColor3f( r,g,b ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.left, rc.bottom + 1 ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.right - 1, rc.bottom + 1 );     \
+               g_GLTable.m_pfn_qglVertex2i( rc.right - 1, rc.top ); \
+               g_GLTable.m_pfn_qglVertex2i( rc.left, rc.top ); \
+               g_GLTable.m_pfn_qglEnd(); }
 
 
 #ifndef ISOMETRIC
 double D = 65536.;
-double ct[3], st[3];
+double ct[3],st[3];
 double Hhi, Hlo, Vhi, Vlo;
 #endif
 
 #define SUBDIVS 6
 
 
-void ShowPreview()
-{
-    if (Preview) {
-        if (g_pWndPreview == NULL) {
-            CreateViewWindow();
-        }
-        g_pWndPreview.show();
+void ShowPreview(){
+       if ( Preview ) {
+               if ( g_pWndPreview == NULL ) {
+                       CreateViewWindow();
+               }
+               g_pWndPreview.show();
 
-        UpdatePreview(true);
-    } else {
-        gtk_widget_hide(g_pWndPreview);
-    }
+               UpdatePreview( true );
+       }
+       else{
+               gtk_widget_hide( g_pWndPreview );
+       }
 }
 
-static void draw_preview()
-{
-    int width = g_pPreviewWidget->allocation.width, height = g_pPreviewWidget->allocation.height;
-
-    g_GLTable.m_pfn_qglClearColor(0, 0, 0, 1);
-    g_GLTable.m_pfn_qglViewport(0, 0, width, height);
-    g_GLTable.m_pfn_qglMatrixMode(GL_PROJECTION);
-    g_GLTable.m_pfn_qglLoadIdentity();
-    g_GLTable.m_pfn_qglOrtho(0, width, 0, height, -1, 1);
-    g_GLTable.m_pfn_qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-    // ^Fishman - Antializing for the preview window.
-    if (Antialiasing) {
-        g_GLTable.m_pfn_qglEnable(GL_BLEND);
-        g_GLTable.m_pfn_qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-        g_GLTable.m_pfn_qglEnable(GL_LINE_SMOOTH);
-    } else {
-        g_GLTable.m_pfn_qglDisable(GL_BLEND);
-        g_GLTable.m_pfn_qglDisable(GL_LINE_SMOOTH);
-    }
-
-    texfont_init();
-
-    if (!ValidSurface()) {
-        return;
-    }
-
-    rcUpper.left = 0;
-    rcUpper.right = width;
-    rcUpper.bottom = 0;
-    rcUpper.top = height;
-    rcLower.left = 0;
-    rcLower.right = width;
-    rcLower.bottom = 0;
-    rcLower.top = height;
-
-    if (VertexMode) {
-        rcUpper.bottom = rcUpper.top / 2;
-        DrawPreview(rcUpper);
-        g_GLTable.m_pfn_qglBegin(GL_LINES);
-        g_GLTable.m_pfn_qglVertex2i(rcUpper.left, rcUpper.bottom);
-        g_GLTable.m_pfn_qglVertex2i(rcUpper.right, rcUpper.bottom);
-        g_GLTable.m_pfn_qglEnd();
-        rcLower.top = rcUpper.bottom - 1;
-        DrawGrid(rcLower);
-        rcCoord.left = rcLower.left;
-        rcCoord.right = rcLower.right;
-        rcCoord.bottom = rcLower.bottom;
-        rcCoord.top = rcLower.top;
-        rcCoord.top = rcCoord.bottom + cyChar;
-        rcCoord.right = rcCoord.left + 15 * cxChar;
-        rcGrid.left = X0G - 3;
-        rcGrid.bottom = Y0G - 3;
-        rcGrid.right = X0G + (int) (SFG * (Hur - Hll)) + 3;
-        rcGrid.top = Y0G + (int) (SFG * (Vur - Vll)) + 3;
-    } else {
-        DrawPreview(rcUpper);
-    }
+static void draw_preview(){
+       int width = g_pPreviewWidget->allocation.width, height = g_pPreviewWidget->allocation.height;
+
+       g_GLTable.m_pfn_qglClearColor( 0, 0, 0, 1 );
+       g_GLTable.m_pfn_qglViewport( 0, 0, width, height );
+       g_GLTable.m_pfn_qglMatrixMode( GL_PROJECTION );
+       g_GLTable.m_pfn_qglLoadIdentity();
+       g_GLTable.m_pfn_qglOrtho( 0, width, 0, height, -1, 1 );
+       g_GLTable.m_pfn_qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+       // ^Fishman - Antializing for the preview window.
+       if ( Antialiasing ) {
+               g_GLTable.m_pfn_qglEnable( GL_BLEND );
+               g_GLTable.m_pfn_qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+               g_GLTable.m_pfn_qglEnable( GL_LINE_SMOOTH );
+       }
+       else
+       {
+               g_GLTable.m_pfn_qglDisable( GL_BLEND );
+               g_GLTable.m_pfn_qglDisable( GL_LINE_SMOOTH );
+       }
+
+       texfont_init();
+
+       if ( !ValidSurface() ) {
+               return;
+       }
+
+       rcUpper.left = 0;
+       rcUpper.right = width;
+       rcUpper.bottom = 0;
+       rcUpper.top = height;
+       rcLower.left = 0;
+       rcLower.right = width;
+       rcLower.bottom = 0;
+       rcLower.top = height;
+
+       if ( VertexMode ) {
+               rcUpper.bottom = rcUpper.top / 2;
+               DrawPreview( rcUpper );
+               g_GLTable.m_pfn_qglBegin( GL_LINES );
+               g_GLTable.m_pfn_qglVertex2i( rcUpper.left, rcUpper.bottom );
+               g_GLTable.m_pfn_qglVertex2i( rcUpper.right, rcUpper.bottom );
+               g_GLTable.m_pfn_qglEnd();
+               rcLower.top = rcUpper.bottom - 1;
+               DrawGrid( rcLower );
+               rcCoord.left = rcLower.left;
+               rcCoord.right = rcLower.right;
+               rcCoord.bottom = rcLower.bottom;
+               rcCoord.top = rcLower.top;
+               rcCoord.top = rcCoord.bottom + cyChar;
+               rcCoord.right = rcCoord.left + 15 * cxChar;
+               rcGrid.left   = X0G - 3;
+               rcGrid.bottom = Y0G - 3;
+               rcGrid.right  = X0G + (int)( SFG * ( Hur - Hll ) ) + 3;
+               rcGrid.top    = Y0G + (int)( SFG * ( Vur - Vll ) ) + 3;
+       }
+       else{
+               DrawPreview( rcUpper );
+       }
 }
 
-static gint expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
-{
-    if (event->count > 0) {
-        return TRUE;
-    }
+static gint expose( GtkWidget *widget, GdkEventExpose *event, gpointer data ){
+       if ( event->count > 0 ) {
+               return TRUE;
+       }
 
-    if (!g_UIGtkTable.m_pfn_glwidget_make_current(g_pPreviewWidget)) {
-        g_FuncTable.m_pfnSysPrintf("GtkGenSurf: glMakeCurrent failed\n");
-        return TRUE;
-    }
+       if ( !g_UIGtkTable.m_pfn_glwidget_make_current( g_pPreviewWidget ) ) {
+               g_FuncTable.m_pfnSysPrintf( "GtkGenSurf: glMakeCurrent failed\n" );
+               return TRUE;
+       }
 
-    draw_preview();
+       draw_preview();
 
-    g_UIGtkTable.m_pfn_glwidget_swap_buffers(g_pPreviewWidget);
-    g_GLTable.m_pfn_QE_CheckOpenGLForErrors();
+       g_UIGtkTable.m_pfn_glwidget_swap_buffers( g_pPreviewWidget );
+       g_GLTable.m_pfn_QE_CheckOpenGLForErrors();
 
-    return TRUE;
+       return TRUE;
 }
 
-static void button_press(GtkWidget *widget, GdkEventButton *event, gpointer data)
-{
-    Point pt = {(long) event->x, widget->allocation.height - (long) event->y};
-    bool Selected;
-    double x, y;
-    int i, j, k, ks;
-    int i0, i1, j0, j1;
-
-    if ((!VertexMode) || (event->button != 1)) {
-        return;
-    }
-
-    if (!PtInRect(&rcGrid, pt)) {
-        gdk_beep();
-        return;
-    }
-
-    x = Hll + (pt.x - X0G) / SFG;
-    y = Vur - (pt.y - Y0G) / SFG;
-    i = (int) (floor((x - Hll) / dh - 0.5) + 1);
-    j = (int) (floor((y - Vll) / dv - 0.5) + 1);
-    if (i < 0 || i > NH || j < 0 || j > NV) {
-        gdk_beep();
-        return;
-    }
-
-    if (!CanEdit(i, j)) {
-        gdk_beep();
-        return;
-    }
-
-    // Control key pressed - add this point, or remove it if already selected
-    if ((event->state & GDK_CONTROL_MASK) != 0) {
-        Selected = FALSE;
-        if (NumVerticesSelected) {
-            for (k = 0; k < NumVerticesSelected && !Selected; k++) {
-                if (Vertex[k].i == i && Vertex[k].j == j) {
-                    Selected = TRUE;
-                    ks = k;
-                }
-            }
-        }
-
-        // Already selected - unselect it.
-        if (Selected) {
-            if (ks < NumVerticesSelected) {
-                for (k = ks; k < NumVerticesSelected - 1; k++) {
-                    Vertex[k].i = Vertex[k + 1].i;
-                    Vertex[k].j = Vertex[k + 1].j;
-                }
-                NumVerticesSelected--;
-            }
-        } else {
-            Vertex[NumVerticesSelected].i = i;
-            Vertex[NumVerticesSelected].j = j;
-            NumVerticesSelected++;
-        }
-    } else if ((event->state & GDK_SHIFT_MASK) != 0) {
-        if (NumVerticesSelected) {
-            NumVerticesSelected = 1;
-            i0 = min(Vertex[0].i, i);
-            i1 = max(Vertex[0].i, i);
-            j0 = min(Vertex[0].j, j);
-            j1 = max(Vertex[0].j, j);
-            for (i = i0; i <= i1; i++) {
-                for (j = j0; j <= j1; j++) {
-                    if (i == 0 && j == 0) {
-                        continue;
-                    }
-                    if (i == NH && j == 0) {
-                        continue;
-                    }
-                    if (i == 0 && j == NV) {
-                        continue;
-                    }
-                    if (i == NH && j == NV) {
-                        continue;
-                    }
-                    if (i != Vertex[0].i || j != Vertex[0].j) {
-                        Vertex[NumVerticesSelected].i = i;
-                        Vertex[NumVerticesSelected].j = j;
-                        NumVerticesSelected++;
-                    }
-                }
-            }
-        } else {
-            Vertex[0].i = i;
-            Vertex[0].j = j;
-            NumVerticesSelected = 1;
-        }
-    } else {
-        Vertex[0].i = i;
-        Vertex[0].j = j;
-        NumVerticesSelected = 1;
-    }
-
-    vertex_selected();
+static void button_press( GtkWidget *widget, GdkEventButton *event, gpointer data ){
+       Point pt = { (long)event->x, widget->allocation.height - (long)event->y };
+       bool Selected;
+       double x,y;
+       int i, j, k, ks;
+       int i0, i1, j0, j1;
+
+       if ( ( !VertexMode ) || ( event->button != 1 ) ) {
+               return;
+       }
+
+       if ( !PtInRect( &rcGrid,pt ) ) {
+               gdk_beep();
+               return;
+       }
+
+       x = Hll + ( pt.x - X0G ) / SFG;
+       y = Vur - ( pt.y - Y0G ) / SFG;
+       i = (int)( floor( ( x - Hll ) / dh - 0.5 ) + 1 );
+       j = (int)( floor( ( y - Vll ) / dv - 0.5 ) + 1 );
+       if ( i < 0 || i > NH || j < 0 || j > NV ) {
+               gdk_beep();
+               return;
+       }
+
+       if ( !CanEdit( i,j ) ) {
+               gdk_beep();
+               return;
+       }
+
+       // Control key pressed - add this point, or remove it if already selected
+       if ( ( event->state & GDK_CONTROL_MASK ) != 0 ) {
+               Selected = FALSE;
+               if ( NumVerticesSelected ) {
+                       for ( k = 0; k < NumVerticesSelected && !Selected; k++ )
+                       {
+                               if ( Vertex[k].i == i && Vertex[k].j == j ) {
+                                       Selected = TRUE;
+                                       ks = k;
+                               }
+                       }
+               }
+
+               // Already selected - unselect it.
+               if ( Selected ) {
+                       if ( ks < NumVerticesSelected ) {
+                               for ( k = ks; k < NumVerticesSelected - 1; k++ )
+                               {
+                                       Vertex[k].i = Vertex[k + 1].i;
+                                       Vertex[k].j = Vertex[k + 1].j;
+                               }
+                               NumVerticesSelected--;
+                       }
+               }
+               else
+               {
+                       Vertex[NumVerticesSelected].i = i;
+                       Vertex[NumVerticesSelected].j = j;
+                       NumVerticesSelected++;
+               }
+       }
+       else if ( ( event->state & GDK_SHIFT_MASK ) != 0 ) {
+               if ( NumVerticesSelected ) {
+                       NumVerticesSelected = 1;
+                       i0 = min( Vertex[0].i, i );
+                       i1 = max( Vertex[0].i, i );
+                       j0 = min( Vertex[0].j, j );
+                       j1 = max( Vertex[0].j, j );
+                       for ( i = i0; i <= i1; i++ )
+                       {
+                               for ( j = j0; j <= j1; j++ )
+                               {
+                                       if ( i == 0  && j == 0 ) {
+                                               continue;
+                                       }
+                                       if ( i == NH && j == 0 ) {
+                                               continue;
+                                       }
+                                       if ( i == 0  && j == NV ) {
+                                               continue;
+                                       }
+                                       if ( i == NH && j == NV ) {
+                                               continue;
+                                       }
+                                       if ( i != Vertex[0].i || j != Vertex[0].j ) {
+                                               Vertex[NumVerticesSelected].i = i;
+                                               Vertex[NumVerticesSelected].j = j;
+                                               NumVerticesSelected++;
+                                       }
+                               }
+                       }
+               }
+               else
+               {
+                       Vertex[0].i = i;
+                       Vertex[0].j = j;
+                       NumVerticesSelected = 1;
+               }
+       }
+       else
+       {
+               Vertex[0].i = i;
+               Vertex[0].j = j;
+               NumVerticesSelected = 1;
+       }
+
+       vertex_selected();
 }
 
-static void motion(GtkWidget *widget, GdkEventMotion *event, gpointer data)
-{
-    Point pt = {(long) event->x, widget->allocation.height - (long) event->y};
-
-    if (!VertexMode) {
-        return;
-    }
-
-    if (!g_UIGtkTable.m_pfn_glwidget_make_current(g_pPreviewWidget)) {
-        g_FuncTable.m_pfnSysPrintf("GtkGenSurf: glMakeCurrent failed\n");
-        return;
-    }
-
-    g_GLTable.m_pfn_qglEnable(GL_SCISSOR_TEST);
-    g_GLTable.m_pfn_qglScissor(rcCoord.left, rcCoord.bottom, rcCoord.right - rcCoord.left,
-                               rcCoord.top - rcCoord.bottom);
-    g_GLTable.m_pfn_qglClear(GL_COLOR_BUFFER_BIT);
-
-    if (PtInRect(&rcGrid, pt)) {
-        GdkCursor *cursor = gdk_cursor_new(GDK_CROSS);
-        gdk_window_set_cursor(g_pWndPreview->window, cursor);
-        gdk_cursor_unref(cursor);
-
-        char Text[32];
-        int x, y;
-
-        x = (int) (Hll + (pt.x - X0G) / SFG);
-        y = (int) (Vur - (pt.y - Y0G) / SFG);
-        switch (Plane) {
-            case PLANE_XZ0:
-            case PLANE_XZ1:
-                sprintf(Text, " x=%d, z=%d   ", (int) (floor(x - 0.5) + 1.), (int) (floor(y - 0.5) + 1.));
-                break;
-            case PLANE_YZ0:
-            case PLANE_YZ1:
-                sprintf(Text, " y=%d, z=%d   ", (int) (floor(x - 0.5) + 1.), (int) (floor(y - 0.5) + 1.));
-                break;
-            default:
-                sprintf(Text, " x=%d, y=%d   ", (int) (floor(x - 0.5) + 1.), (int) (floor(y - 0.5) + 1.));
-        }
-
-        texfont_write(Text, rcCoord.left, rcCoord.top);
-    } else {
-        gdk_window_set_cursor(g_pWndPreview->window, NULL);
-    }
-
-    g_UIGtkTable.m_pfn_glwidget_swap_buffers(g_pPreviewWidget);
-    g_GLTable.m_pfn_QE_CheckOpenGLForErrors();
-    g_GLTable.m_pfn_qglDisable(GL_SCISSOR_TEST);
+static void motion( GtkWidget *widget, GdkEventMotion *event, gpointer data ){
+       Point pt = { (long)event->x, widget->allocation.height - (long)event->y };
+
+       if ( !VertexMode ) {
+               return;
+       }
+
+       if ( !g_UIGtkTable.m_pfn_glwidget_make_current( g_pPreviewWidget ) ) {
+               g_FuncTable.m_pfnSysPrintf( "GtkGenSurf: glMakeCurrent failed\n" );
+               return;
+       }
+
+       g_GLTable.m_pfn_qglEnable( GL_SCISSOR_TEST );
+       g_GLTable.m_pfn_qglScissor( rcCoord.left, rcCoord.bottom, rcCoord.right - rcCoord.left,
+                                                               rcCoord.top - rcCoord.bottom );
+       g_GLTable.m_pfn_qglClear( GL_COLOR_BUFFER_BIT );
+
+       if ( PtInRect( &rcGrid,pt ) ) {
+               GdkCursor *cursor = gdk_cursor_new( GDK_CROSS );
+               gdk_window_set_cursor( g_pWndPreview->window, cursor );
+               gdk_cursor_unref( cursor );
+
+               char Text[32];
+               int x, y;
+
+               x = (int)( Hll + ( pt.x - X0G ) / SFG );
+               y = (int)( Vur - ( pt.y - Y0G ) / SFG );
+               switch ( Plane )
+               {
+               case PLANE_XZ0:
+               case PLANE_XZ1:
+                       sprintf( Text," x=%d, z=%d   ",(int)( floor( x - 0.5 ) + 1. ),(int)( floor( y - 0.5 ) + 1. ) );
+                       break;
+               case PLANE_YZ0:
+               case PLANE_YZ1:
+                       sprintf( Text," y=%d, z=%d   ",(int)( floor( x - 0.5 ) + 1. ),(int)( floor( y - 0.5 ) + 1. ) );
+                       break;
+               default:
+                       sprintf( Text," x=%d, y=%d   ",(int)( floor( x - 0.5 ) + 1. ),(int)( floor( y - 0.5 ) + 1. ) );
+               }
+
+               texfont_write( Text, rcCoord.left, rcCoord.top );
+       }
+       else
+       {
+               gdk_window_set_cursor( g_pWndPreview->window, NULL );
+       }
+
+       g_UIGtkTable.m_pfn_glwidget_swap_buffers( g_pPreviewWidget );
+       g_GLTable.m_pfn_QE_CheckOpenGLForErrors();
+       g_GLTable.m_pfn_qglDisable( GL_SCISSOR_TEST );
 }
 
-static gint preview_close(GtkWidget *widget, gpointer data)
-{
-    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g_object_get_data(G_OBJECT(g_pWnd), "main_preview")), FALSE);
-    return TRUE;
+static gint preview_close( GtkWidget *widget, gpointer data ){
+       gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( g_object_get_data( G_OBJECT( g_pWnd ), "main_preview" ) ), FALSE );
+       return TRUE;
 }
 
-static void preview_focusout(GtkSpinButton *spin, GdkEventFocus *event, double *data)
-{
-    *data = DegreesToRadians((double) (gtk_spin_button_get_value_as_int(spin) % 360));
-    UpdatePreview(false);
+static void preview_focusout( GtkSpinButton *spin, GdkEventFocus *event, double *data ){
+       *data = DegreesToRadians( (double)( gtk_spin_button_get_value_as_int( spin ) % 360 ) );
+       UpdatePreview( false );
 }
 
-static gint doublevariable_spinfocusout(GtkWidget *widget, GdkEventFocus *event, gpointer data)
-{
-    preview_focusout(GTK_SPIN_BUTTON(widget), event, reinterpret_cast<double *>( data ));
-    return FALSE;
+static gint doublevariable_spinfocusout( GtkWidget* widget, GdkEventFocus* event, gpointer data ){
+       preview_focusout( GTK_SPIN_BUTTON( widget ), event, reinterpret_cast<double*>( data ) );
+       return FALSE;
 }
 
-static void preview_spin(GtkAdjustment *adj, double *data)
-{
-    *data = DegreesToRadians(adj->value);
-    UpdatePreview(false);
+static void preview_spin( GtkAdjustment *adj, double *data ){
+       *data = DegreesToRadians( adj->value );
+       UpdatePreview( false );
 }
 
-void CreateViewWindow()
-{
-    GtkWidget *label, *spin;
+void CreateViewWindow(){
+       GtkWidget *label, *spin;
 
 #ifndef ISOMETRIC
-    elevation = PI / 6.;
-    azimuth = PI / 6.;
+       elevation = PI / 6.;
+       azimuth   = PI / 6.;
 #endif
 
-    auto dlg = g_pWndPreview = ui::Window(ui::window_type::TOP);
-    gtk_window_set_title(dlg, "GtkGenSurf Preview");
-    dlg.connect("delete_event", G_CALLBACK(preview_close), NULL);
-    dlg.connect("destroy", G_CALLBACK(gtk_widget_destroy), NULL);
-    gtk_window_set_transient_for(dlg, g_pWnd);
-    gtk_window_set_default_size(dlg, 300, 400);
+       auto dlg = g_pWndPreview = ui::Window( ui::window_type::TOP );
+       gtk_window_set_title( dlg, "GtkGenSurf Preview" );
+       dlg.connect( "delete_event", G_CALLBACK( preview_close ), NULL );
+       dlg.connect( "destroy", G_CALLBACK( gtk_widget_destroy ), NULL );
+       gtk_window_set_transient_for( dlg, g_pWnd );
+       gtk_window_set_default_size( dlg, 300, 400 );
 
-    auto vbox = ui::VBox(FALSE, 5);
-    vbox.show();
-    dlg.add(vbox);
+       auto vbox = ui::VBox( FALSE, 5 );
+       vbox.show();
+       dlg.add(vbox);
 
 #ifndef ISOMETRIC
-    auto hbox = ui::HBox(TRUE, 5);
-    hbox.show();
-    vbox.pack_start(hbox, FALSE, TRUE, 0);
-    gtk_container_set_border_width(GTK_CONTAINER(hbox), 3);
-
-    label = ui::Label("Elevation");
-    label.show();
-    gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
-    hbox.pack_start(label, FALSE, TRUE, 0);
-
-    auto adj = ui::Adjustment(30, -90, 90, 1, 10, 0);
-    adj.connect("value_changed", G_CALLBACK(preview_spin), &elevation);
-    spin = ui::SpinButton(adj, 1, 0);
-    spin.show();
-    hbox.pack_start(spin, FALSE, TRUE, 0);
-    spin.connect("focus_out_event", G_CALLBACK(doublevariable_spinfocusout), &elevation);
-
-    adj = ui::Adjustment(30, 0, 359, 1, 10, 0);
-    adj.connect("value_changed", G_CALLBACK(preview_spin), &azimuth);
-    spin = ui::SpinButton(adj, 1, 0);
-    spin.show();
-    gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(spin), TRUE);
-    hbox.pack_end(spin, FALSE, TRUE, 0);
-
-    label = ui::Label("Azimuth");
-    label.show();
-    gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
-    hbox.pack_end(label, FALSE, TRUE, 0);
-    spin.connect("focus_out_event", G_CALLBACK(doublevariable_spinfocusout), &azimuth);
+       auto hbox = ui::HBox( TRUE, 5 );
+       hbox.show();
+       vbox.pack_start( hbox, FALSE, TRUE, 0 );
+       gtk_container_set_border_width( GTK_CONTAINER( hbox ), 3 );
+
+       label = ui::Label( "Elevation" );
+       label.show();
+       gtk_misc_set_alignment( GTK_MISC( label ), 1, 0.5 );
+       hbox.pack_start( label, FALSE, TRUE, 0 );
+
+       auto adj = ui::Adjustment( 30, -90, 90, 1, 10, 0 );
+       adj.connect( "value_changed", G_CALLBACK( preview_spin ), &elevation );
+       spin = ui::SpinButton( adj, 1, 0 );
+       spin.show();
+       hbox.pack_start( spin, FALSE, TRUE, 0 );
+       spin.connect( "focus_out_event", G_CALLBACK( doublevariable_spinfocusout ), &elevation );
+
+       adj = ui::Adjustment( 30, 0, 359, 1, 10, 0 );
+       adj.connect( "value_changed", G_CALLBACK( preview_spin ), &azimuth );
+       spin = ui::SpinButton( adj, 1, 0 );
+       spin.show();
+       gtk_spin_button_set_wrap( GTK_SPIN_BUTTON( spin ), TRUE );
+       hbox.pack_end(spin, FALSE, TRUE, 0);
+
+       label = ui::Label( "Azimuth" );
+       label.show();
+       gtk_misc_set_alignment( GTK_MISC( label ), 1, 0.5 );
+       hbox.pack_end(label, FALSE, TRUE, 0);
+       spin.connect( "focus_out_event", G_CALLBACK( doublevariable_spinfocusout ), &azimuth );
 #endif
 
-    auto frame = ui::Frame(ui::null);
-    frame.show();
-    gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_IN);
-    vbox.pack_start(frame, TRUE, TRUE, 0);
+       auto frame = ui::Frame(ui::null);
+       frame.show();
+       gtk_frame_set_shadow_type( GTK_FRAME( frame ), GTK_SHADOW_IN );
+       vbox.pack_start( frame, TRUE, TRUE, 0 );
 
-    g_pPreviewWidget = g_UIGtkTable.m_pfn_glwidget_new(FALSE, NULL);
+       g_pPreviewWidget = g_UIGtkTable.m_pfn_glwidget_new( FALSE, NULL );
 
-    gtk_widget_set_events(g_pPreviewWidget, GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK);
-    g_pPreviewWidget.connect("expose_event", G_CALLBACK(expose), NULL);
-    g_pPreviewWidget.connect("motion_notify_event", G_CALLBACK(motion), NULL);
-    g_pPreviewWidget.connect("button_press_event",
-                             G_CALLBACK(button_press), NULL);
+       gtk_widget_set_events( g_pPreviewWidget, GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK );
+       g_pPreviewWidget.connect( "expose_event", G_CALLBACK( expose ), NULL );
+       g_pPreviewWidget.connect( "motion_notify_event", G_CALLBACK( motion ), NULL );
+       g_pPreviewWidget.connect( "button_press_event",
+                                               G_CALLBACK( button_press ), NULL );
 
-    g_pPreviewWidget.show();
-    frame.add(ui::Widget(g_pPreviewWidget));
+       g_pPreviewWidget.show();
+       frame.add(ui::Widget(g_pPreviewWidget));
 
-    if (Preview) {
-        g_pWndPreview.show();
-    }
+       if ( Preview ) {
+               g_pWndPreview.show();
+       }
 
-    UpdatePreview(true);
+       UpdatePreview( true );
 }
 
 //=============================================================
 /* DrawPreview */
-void DrawPreview(Rect rc)
-{
+void DrawPreview( Rect rc ){
 #define COSXA 0.8660254037844
 #define SINXA 0.5
 #define COSYA 0.8660254037844
 #define SINYA 0.5
 
-    double L;
-    double x, y;
-    int i, j;
-    Point pt[8];
-    XYZ v[8];
-    char axis[3][2] = {"X", "Y", "Z"};
+       double L;
+       double x,y;
+       int i, j;
+       Point pt[8];
+       XYZ v[8];
+       char axis[3][2] = {"X","Y","Z"};
 
 #ifndef ISOMETRIC
-    evaluate();
+       evaluate();
 #endif
 
-    XLo = xmin;
-    XHi = xmax;
-    YLo = ymin;
-    YHi = ymax;
-    ZLo = zmin;
-    ZHi = zmax;
-    switch (Plane) {
-        case PLANE_XY1:
-            ZHi = backface;
-            break;
-        case PLANE_XZ0:
-            YLo = backface;
-            break;
-        case PLANE_XZ1:
-            YHi = backface;
-            break;
-        case PLANE_YZ0:
-            XLo = backface;
-            break;
-        case PLANE_YZ1:
-            XHi = backface;
-            break;
-        default:
-            ZLo = backface;
-    }
-
-
-    GetScaleFactor(rc);
-    //PEN_GRID
-    g_GLTable.m_pfn_qglLineWidth(1);
-    g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-    g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
-
-    if (Decimate > 0 && (Game != QUAKE3 || UsePatches == 0)) {
-        XYZ *vv;
-
-        vv = (XYZ *) malloc(gNumNodes * sizeof(XYZ));
-        for (i = 0; i < gNumNodes; i++) {
-            for (j = 0; j < 3; j++) {
-                vv[i].p[j] = (double) (gNode[i].p[j]);
-            }
-            project(&vv[i]);
-        }
-
-        for (i = 0; i < gNumTris; i++) {
-            for (j = 0; j < 3; j++) {
-                Scale(rc, vv[gTri[i].v[j]], &pt[j]);
-            }
-
-            g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-            g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[1].y);
-            g_GLTable.m_pfn_qglVertex2i(pt[2].x, pt[2].y);
-            g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            g_GLTable.m_pfn_qglEnd();
-        }
-        free(vv);
-    } else if (Game == QUAKE3 && UsePatches != 0) {
-        int axis, ii, jj, k;
-        float u, v;
-        XYZ uv[3][3];
-        XYZ Ctrl[3], out;
-
-        switch (Plane) {
-            case PLANE_XY0:
-            case PLANE_XY1:
-                k = 2;
-                break;
-            case PLANE_XZ0:
-            case PLANE_XZ1:
-                k = 1;
-                break;
-            default:
-                k = 0;
-        }
-        for (i = 0; i < NH; i += 2) {
-            for (j = 0; j < NV; j += 2) {
-                VectorCopy(xyz[i][j].p, uv[0][0].p);
-                VectorCopy(xyz[i + 1][j].p, uv[1][0].p);
-                VectorCopy(xyz[i + 2][j].p, uv[2][0].p);
-                VectorCopy(xyz[i][j + 1].p, uv[0][1].p);
-                VectorCopy(xyz[i + 1][j + 1].p, uv[1][1].p);
-                VectorCopy(xyz[i + 2][j + 1].p, uv[2][1].p);
-                VectorCopy(xyz[i][j + 2].p, uv[0][2].p);
-                VectorCopy(xyz[i + 1][j + 2].p, uv[1][2].p);
-                VectorCopy(xyz[i + 2][j + 2].p, uv[2][2].p);
-                uv[1][0].p[k] = (4 * xyz[i + 1][j].p[k] - xyz[i][j].p[k] - xyz[i + 2][j].p[k]) / 2;
-                uv[0][1].p[k] = (4 * xyz[i][j + 1].p[k] - xyz[i][j].p[k] - xyz[i][j + 2].p[k]) / 2;
-                uv[2][1].p[k] = (4 * xyz[i + 2][j + 1].p[k] - xyz[i + 2][j].p[k] - xyz[i + 2][j + 2].p[k]) / 2;
-                uv[1][2].p[k] = (4 * xyz[i + 1][j + 2].p[k] - xyz[i][j + 2].p[k] - xyz[i + 2][j + 2].p[k]) / 2;
-                uv[1][1].p[k] = (16 * xyz[i + 1][j + 1].p[k] -
-                                 xyz[i][j].p[k] - 2 * xyz[i + 1][j].p[k] - xyz[i + 2][j].p[k] -
-                                 2 * xyz[i][j + 1].p[k] - 2 * xyz[i + 2][j + 1].p[k] -
-                                 xyz[i][j + 2].p[k] - 2 * xyz[i + 1][j + 2].p[k] - xyz[i + 2][j + 2].p[k]) / 4;
-
-                for (ii = 0; ii <= SUBDIVS; ii++) {
-                    if (ii == 0 || ii == SUBDIVS / 2 || ii == SUBDIVS) {
-                        g_GLTable.m_pfn_qglLineWidth(1);
-                        g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-                        g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
-                        // PEN_GRID
-                    } else {
-                        g_GLTable.m_pfn_qglLineWidth(1);
-                        g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-                        g_GLTable.m_pfn_qglLineStipple(1, 0xF0F0);
-                        g_GLTable.m_pfn_qglEnable(GL_LINE_STIPPLE);
-                        // PEN_DASH
-                    }
-
-                    u = (float) (ii) / (float) (SUBDIVS);
-                    for (jj = 0; jj < 3; jj++) {
-                        for (axis = 0; axis < 3; axis++) {
-                            float a, b, c;
-                            float qA, qB, qC;
-                            a = (float) uv[0][jj].p[axis];
-                            b = (float) uv[1][jj].p[axis];
-                            c = (float) uv[2][jj].p[axis];
-                            qA = a - 2 * b + c;
-                            qB = 2 * b - 2 * a;
-                            qC = a;
-                            Ctrl[jj].p[axis] = qA * u * u + qB * u + qC;
-                        }
-                    }
-                    VectorCopy(Ctrl[0].p, out.p);
-                    project(&out);
-                    Scale(rc, out, &pt[0]);
-                    g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-                    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-                    for (jj = 1; jj <= SUBDIVS; jj++) {
-                        v = (float) (jj) / (float) (SUBDIVS);
-                        for (axis = 0; axis < 3; axis++) {
-                            float a, b, c;
-                            float qA, qB, qC;
-                            a = (float) Ctrl[0].p[axis];
-                            b = (float) Ctrl[1].p[axis];
-                            c = (float) Ctrl[2].p[axis];
-                            qA = a - 2 * b + c;
-                            qB = 2 * b - 2 * a;
-                            qC = a;
-                            out.p[axis] = qA * v * v + qB * v + qC;
-                        }
-                        project(&out);
-                        Scale(rc, out, &pt[0]);
-                        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-                    }
-                    g_GLTable.m_pfn_qglEnd();
-                }
-                for (jj = 0; jj <= SUBDIVS; jj++) {
-                    if (jj == 0 || jj == SUBDIVS / 2 || jj == SUBDIVS) {
-                        g_GLTable.m_pfn_qglLineWidth(1);
-                        g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-                        g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
-                        // PEN_GRID
-                    } else {
-                        g_GLTable.m_pfn_qglLineWidth(1);
-                        g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-                        g_GLTable.m_pfn_qglLineStipple(1, 0xF0F0);
-                        g_GLTable.m_pfn_qglEnable(GL_LINE_STIPPLE);
-                        // PEN_DASH
-                    }
-
-                    v = (float) (jj) / (float) (SUBDIVS);
-                    for (ii = 0; ii < 3; ii++) {
-                        for (axis = 0; axis < 3; axis++) {
-                            float a, b, c;
-                            float qA, qB, qC;
-                            a = (float) uv[ii][0].p[axis];
-                            b = (float) uv[ii][1].p[axis];
-                            c = (float) uv[ii][2].p[axis];
-                            qA = a - 2 * b + c;
-                            qB = 2 * b - 2 * a;
-                            qC = a;
-                            Ctrl[ii].p[axis] = qA * v * v + qB * v + qC;
-                        }
-                    }
-                    VectorCopy(Ctrl[0].p, out.p);
-                    project(&out);
-                    Scale(rc, out, &pt[0]);
-                    g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-                    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-                    for (ii = 1; ii <= SUBDIVS; ii++) {
-                        u = (float) (ii) / (float) (SUBDIVS);
-                        for (axis = 0; axis < 3; axis++) {
-                            float a, b, c;
-                            float qA, qB, qC;
-                            a = (float) Ctrl[0].p[axis];
-                            b = (float) Ctrl[1].p[axis];
-                            c = (float) Ctrl[2].p[axis];
-                            qA = a - 2 * b + c;
-                            qB = 2 * b - 2 * a;
-                            qC = a;
-                            out.p[axis] = qA * u * u + qB * u + qC;
-                        }
-                        project(&out);
-                        Scale(rc, out, &pt[0]);
-                        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-                    }
-                    g_GLTable.m_pfn_qglEnd();
-                }
-            }
-        }
-    } else {
-        for (i = 0; i <= NH; i++) {
-            Scale(rc, xyz[i][0], &pt[0]);
-            g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-            g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            for (j = 1; j <= NV; j++) {
-                Scale(rc, xyz[i][j], &pt[0]);
-                g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            }
-            g_GLTable.m_pfn_qglEnd();
-        }
-        for (j = 0; j <= NV; j++) {
-            Scale(rc, xyz[0][j], &pt[0]);
-            g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-            g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            for (i = 1; i <= NH; i++) {
-                Scale(rc, xyz[i][j], &pt[0]);
-                g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-            }
-            g_GLTable.m_pfn_qglEnd();
-        }
-    }
-
-    if (Game != QUAKE3 || UsePatches == 0) {
-        // Draw lines from corners to base, and lines around base
-        for (i = 0; i <= NH; i += NH) {
-            for (j = 0; j <= NV; j += NV) {
-                VectorCopy(xyz[i][j].p, v[0].p);
-                switch (Plane) {
-                    case PLANE_XZ0:
-                    case PLANE_XZ1:
-                        v[0].p[1] = backface;
-                        break;
-                    case PLANE_YZ0:
-                    case PLANE_YZ1:
-                        v[0].p[0] = backface;
-                        break;
-                    default:
-                        v[0].p[2] = backface;
-                }
-                Scale(rc, xyz[i][j], &pt[0]);
+       XLo = xmin;
+       XHi = xmax;
+       YLo = ymin;
+       YHi = ymax;
+       ZLo = zmin;
+       ZHi = zmax;
+       switch ( Plane )
+       {
+       case PLANE_XY1:
+               ZHi = backface;
+               break;
+       case PLANE_XZ0:
+               YLo = backface;
+               break;
+       case PLANE_XZ1:
+               YHi = backface;
+               break;
+       case PLANE_YZ0:
+               XLo = backface;
+               break;
+       case PLANE_YZ1:
+               XHi = backface;
+               break;
+       default:
+               ZLo = backface;
+       }
+
+
+
+       GetScaleFactor( rc );
+       //PEN_GRID
+       g_GLTable.m_pfn_qglLineWidth( 1 );
+       g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+       g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
+
+       if ( Decimate > 0 && ( Game != QUAKE3 || UsePatches == 0 ) ) {
+               XYZ  *vv;
+
+               vv   = (XYZ *) malloc( gNumNodes * sizeof( XYZ ) );
+               for ( i = 0; i < gNumNodes; i++ )
+               {
+                       for ( j = 0; j < 3; j++ )
+                               vv[i].p[j] = (double)( gNode[i].p[j] );
+                       project( &vv[i] );
+               }
+
+               for ( i = 0; i < gNumTris; i++ )
+               {
+                       for ( j = 0; j < 3; j++ )
+                               Scale( rc,vv[gTri[i].v[j]],&pt[j] );
+
+                       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       g_GLTable.m_pfn_qglVertex2i( pt[1].x, pt[1].y );
+                       g_GLTable.m_pfn_qglVertex2i( pt[2].x, pt[2].y );
+                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       g_GLTable.m_pfn_qglEnd();
+               }
+               free( vv );
+       }
+       else if ( Game == QUAKE3 && UsePatches != 0 ) {
+               int axis, ii, jj, k;
+               float u, v;
+               XYZ uv[3][3];
+               XYZ Ctrl[3],out;
+
+               switch ( Plane )
+               {
+               case PLANE_XY0:
+               case PLANE_XY1:
+                       k = 2;
+                       break;
+               case PLANE_XZ0:
+               case PLANE_XZ1:
+                       k = 1;
+                       break;
+               default:
+                       k = 0;
+               }
+               for ( i = 0; i < NH; i += 2 )
+               {
+                       for ( j = 0; j < NV; j += 2 )
+                       {
+                               VectorCopy( xyz[i  ][j  ].p,uv[0][0].p );
+                               VectorCopy( xyz[i + 1][j  ].p,uv[1][0].p );
+                               VectorCopy( xyz[i + 2][j  ].p,uv[2][0].p );
+                               VectorCopy( xyz[i  ][j + 1].p,uv[0][1].p );
+                               VectorCopy( xyz[i + 1][j + 1].p,uv[1][1].p );
+                               VectorCopy( xyz[i + 2][j + 1].p,uv[2][1].p );
+                               VectorCopy( xyz[i  ][j + 2].p,uv[0][2].p );
+                               VectorCopy( xyz[i + 1][j + 2].p,uv[1][2].p );
+                               VectorCopy( xyz[i + 2][j + 2].p,uv[2][2].p );
+                               uv[1][0].p[k] = ( 4 * xyz[i + 1][j  ].p[k] - xyz[i  ][j  ].p[k] - xyz[i + 2][j  ].p[k] ) / 2;
+                               uv[0][1].p[k] = ( 4 * xyz[i  ][j + 1].p[k] - xyz[i  ][j  ].p[k] - xyz[i  ][j + 2].p[k] ) / 2;
+                               uv[2][1].p[k] = ( 4 * xyz[i + 2][j + 1].p[k] - xyz[i + 2][j  ].p[k] - xyz[i + 2][j + 2].p[k] ) / 2;
+                               uv[1][2].p[k] = ( 4 * xyz[i + 1][j + 2].p[k] - xyz[i  ][j + 2].p[k] - xyz[i + 2][j + 2].p[k] ) / 2;
+                               uv[1][1].p[k] = ( 16 * xyz[i + 1][j + 1].p[k] -
+                                                                 xyz[i  ][j  ].p[k] - 2 * xyz[i + 1][j  ].p[k] -  xyz[i + 2][j  ].p[k] -
+                                                                 2 * xyz[i  ][j + 1].p[k]                        - 2 * xyz[i + 2][j + 1].p[k] -
+                                                                 xyz[i  ][j + 2].p[k] - 2 * xyz[i + 1][j + 2].p[k] -  xyz[i + 2][j + 2].p[k]   ) / 4;
+
+                               for ( ii = 0; ii <= SUBDIVS; ii++ )
+                               {
+                                       if ( ii == 0 || ii == SUBDIVS / 2 || ii == SUBDIVS ) {
+                                               g_GLTable.m_pfn_qglLineWidth( 1 );
+                                               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+                                               g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
+                                               // PEN_GRID
+                                       }
+                                       else
+                                       {
+                                               g_GLTable.m_pfn_qglLineWidth( 1 );
+                                               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+                                               g_GLTable.m_pfn_qglLineStipple( 1, 0xF0F0 );
+                                               g_GLTable.m_pfn_qglEnable( GL_LINE_STIPPLE );
+                                               // PEN_DASH
+                                       }
+
+                                       u = (float)( ii ) / (float)( SUBDIVS );
+                                       for ( jj = 0; jj < 3; jj++ )
+                                       {
+                                               for ( axis = 0; axis < 3; axis++ )
+                                               {
+                                                       float a, b, c;
+                                                       float qA, qB, qC;
+                                                       a = (float)uv[0][jj].p[axis];
+                                                       b = (float)uv[1][jj].p[axis];
+                                                       c = (float)uv[2][jj].p[axis];
+                                                       qA = a - 2 * b + c;
+                                                       qB = 2 * b - 2 * a;
+                                                       qC = a;
+                                                       Ctrl[jj].p[axis] = qA * u * u + qB * u + qC;
+                                               }
+                                       }
+                                       VectorCopy( Ctrl[0].p,out.p );
+                                       project( &out );
+                                       Scale( rc,out,&pt[0] );
+                                       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                                       for ( jj = 1; jj <= SUBDIVS; jj++ )
+                                       {
+                                               v = (float)( jj ) / (float)( SUBDIVS );
+                                               for ( axis = 0 ; axis < 3 ; axis++ )
+                                               {
+                                                       float a, b, c;
+                                                       float qA, qB, qC;
+                                                       a = (float)Ctrl[0].p[axis];
+                                                       b = (float)Ctrl[1].p[axis];
+                                                       c = (float)Ctrl[2].p[axis];
+                                                       qA = a - 2 * b + c;
+                                                       qB = 2 * b - 2 * a;
+                                                       qC = a;
+                                                       out.p[axis] = qA * v * v + qB * v + qC;
+                                               }
+                                               project( &out );
+                                               Scale( rc,out,&pt[0] );
+                                               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                                       }
+                                       g_GLTable.m_pfn_qglEnd();
+                               }
+                               for ( jj = 0; jj <= SUBDIVS; jj++ )
+                               {
+                                       if ( jj == 0 || jj == SUBDIVS / 2 || jj == SUBDIVS ) {
+                                               g_GLTable.m_pfn_qglLineWidth( 1 );
+                                               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+                                               g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
+                                               // PEN_GRID
+                                       }
+                                       else
+                                       {
+                                               g_GLTable.m_pfn_qglLineWidth( 1 );
+                                               g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+                                               g_GLTable.m_pfn_qglLineStipple( 1, 0xF0F0 );
+                                               g_GLTable.m_pfn_qglEnable( GL_LINE_STIPPLE );
+                                               // PEN_DASH
+                                       }
+
+                                       v = (float)( jj ) / (float)( SUBDIVS );
+                                       for ( ii = 0; ii < 3; ii++ )
+                                       {
+                                               for ( axis = 0; axis < 3; axis++ )
+                                               {
+                                                       float a, b, c;
+                                                       float qA, qB, qC;
+                                                       a = (float)uv[ii][0].p[axis];
+                                                       b = (float)uv[ii][1].p[axis];
+                                                       c = (float)uv[ii][2].p[axis];
+                                                       qA = a - 2 * b + c;
+                                                       qB = 2 * b - 2 * a;
+                                                       qC = a;
+                                                       Ctrl[ii].p[axis] = qA * v * v + qB * v + qC;
+                                               }
+                                       }
+                                       VectorCopy( Ctrl[0].p,out.p );
+                                       project( &out );
+                                       Scale( rc,out,&pt[0] );
+                                       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                                       for ( ii = 1; ii <= SUBDIVS; ii++ )
+                                       {
+                                               u = (float)( ii ) / (float)( SUBDIVS );
+                                               for ( axis = 0 ; axis < 3 ; axis++ )
+                                               {
+                                                       float a, b, c;
+                                                       float qA, qB, qC;
+                                                       a = (float)Ctrl[0].p[axis];
+                                                       b = (float)Ctrl[1].p[axis];
+                                                       c = (float)Ctrl[2].p[axis];
+                                                       qA = a - 2 * b + c;
+                                                       qB = 2 * b - 2 * a;
+                                                       qC = a;
+                                                       out.p[axis] = qA * u * u + qB * u + qC;
+                                               }
+                                               project( &out );
+                                               Scale( rc,out,&pt[0] );
+                                               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                                       }
+                                       g_GLTable.m_pfn_qglEnd();
+                               }
+                       }
+               }
+       }
+       else
+       {
+               for ( i = 0; i <= NH; i++ )
+               {
+                       Scale( rc,xyz[i][0],&pt[0] );
+                       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       for ( j = 1; j <= NV; j++ )
+                       {
+                               Scale( rc,xyz[i][j],&pt[0] );
+                               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       }
+                       g_GLTable.m_pfn_qglEnd();
+               }
+               for ( j = 0; j <= NV; j++ )
+               {
+                       Scale( rc,xyz[0][j],&pt[0] );
+                       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                       g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       for ( i = 1; i <= NH; i++ )
+                       {
+                               Scale( rc,xyz[i][j],&pt[0] );
+                               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                       }
+                       g_GLTable.m_pfn_qglEnd();
+               }
+       }
+
+       if ( Game != QUAKE3 || UsePatches == 0 ) {
+               // Draw lines from corners to base, and lines around base
+               for ( i = 0; i <= NH; i += NH )
+               {
+                       for ( j = 0; j <= NV; j += NV )
+                       {
+                               VectorCopy( xyz[i][j].p, v[0].p );
+                               switch ( Plane )
+                               {
+                               case PLANE_XZ0:
+                               case PLANE_XZ1:
+                                       v[0].p[1] = backface;
+                                       break;
+                               case PLANE_YZ0:
+                               case PLANE_YZ1:
+                                       v[0].p[0] = backface;
+                                       break;
+                               default:
+                                       v[0].p[2] = backface;
+                               }
+                               Scale( rc,xyz[i][j],&pt[0] );
 #ifndef ISOMETRIC
-                project(&v[0]);
+                               project( &v[0] );
 #endif
-                Scale(rc, v[0], &pt[1]);
-                g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-                g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-                g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[1].y);
-                g_GLTable.m_pfn_qglEnd();
-            }
-        }
-        VectorCopy(xyz[0][0].p, v[0].p);
-        VectorCopy(xyz[NH][0].p, v[1].p);
-        VectorCopy(xyz[NH][NV].p, v[2].p);
-        VectorCopy(xyz[0][NV].p, v[3].p);
-        switch (Plane) {
-            case PLANE_XZ0:
-            case PLANE_XZ1:
-                v[0].p[1] = backface;;
-                v[1].p[1] = v[0].p[1];
-                v[2].p[1] = v[0].p[1];
-                v[3].p[1] = v[0].p[1];
-                break;
-            case PLANE_YZ0:
-            case PLANE_YZ1:
-                v[0].p[0] = backface;
-                v[1].p[0] = v[0].p[0];
-                v[2].p[0] = v[0].p[0];
-                v[3].p[0] = v[0].p[0];
-                break;
-            default:
-                v[0].p[2] = backface;
-                v[1].p[2] = v[0].p[2];
-                v[2].p[2] = v[0].p[2];
-                v[3].p[2] = v[0].p[2];
-        }
+                               Scale( rc,v[0],&pt[1] );
+                               g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+                               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+                               g_GLTable.m_pfn_qglVertex2i( pt[1].x, pt[1].y );
+                               g_GLTable.m_pfn_qglEnd();
+                       }
+               }
+               VectorCopy( xyz[ 0][ 0].p, v[0].p );
+               VectorCopy( xyz[NH][ 0].p, v[1].p );
+               VectorCopy( xyz[NH][NV].p, v[2].p );
+               VectorCopy( xyz[ 0][NV].p, v[3].p );
+               switch ( Plane )
+               {
+               case PLANE_XZ0:
+               case PLANE_XZ1:
+                       v[0].p[1] = backface;;
+                       v[1].p[1] = v[0].p[1];
+                       v[2].p[1] = v[0].p[1];
+                       v[3].p[1] = v[0].p[1];
+                       break;
+               case PLANE_YZ0:
+               case PLANE_YZ1:
+                       v[0].p[0] = backface;
+                       v[1].p[0] = v[0].p[0];
+                       v[2].p[0] = v[0].p[0];
+                       v[3].p[0] = v[0].p[0];
+                       break;
+               default:
+                       v[0].p[2] = backface;
+                       v[1].p[2] = v[0].p[2];
+                       v[2].p[2] = v[0].p[2];
+                       v[3].p[2] = v[0].p[2];
+               }
 #ifndef ISOMETRIC
-        project(&v[3]);
+               project( &v[3] );
 #endif
-        Scale(rc, v[3], &pt[0]);
-        g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-        for (i = 0; i < 3; i++) {
+               Scale( rc,v[3],&pt[0] );
+               g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+               for ( i = 0; i < 3; i++ )
+               {
 #ifndef ISOMETRIC
-            project(&v[i]);
+                       project( &v[i] );
 #endif
-            Scale(rc, v[i], &pt[1]);
-            g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[1].y);
-        }
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglEnd();
-    }
+                       Scale( rc,v[i],&pt[1] );
+                       g_GLTable.m_pfn_qglVertex2i( pt[1].x, pt[1].y );
+               }
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+               g_GLTable.m_pfn_qglEnd();
+       }
 
-    g_GLTable.m_pfn_qglLineWidth(1);
-    g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-    g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
+       g_GLTable.m_pfn_qglLineWidth( 1 );
+       g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+       g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
 
 #ifdef ISOMETRIC
-    // Draw small depiction of coordinate axes
-    pt[0].x = rc.right  - cxChar   - cxChar / 2 -  cyChar;
-    pt[0].y = rc.bottom - cyChar / 2 - cxChar / 2;
-    pt[1].x = pt[0].x + (int)( cyChar * COSXA );
-    pt[1].y = pt[0].y - (int)( cyChar * SINXA );
-    MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
-    LineTo( hdc,pt[1].x,pt[1].y );
-    SetTextAlign( hdc,TA_LEFT | TA_TOP );
-    TextOut( hdc,pt[1].x,pt[1].y - cyChar / 2,"X",1 );
-    pt[1].x = pt[0].x - (int)( cyChar * COSYA );
-    pt[1].y = pt[0].y - (int)( cyChar * SINYA );
-    MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
-    LineTo( hdc,pt[1].x,pt[1].y );
-    SetTextAlign( hdc,TA_RIGHT | TA_TOP );
-    TextOut( hdc,pt[1].x,pt[1].y - cyChar / 2,"Y",1 );
-    pt[1].x = pt[0].x;
-    pt[1].y = pt[0].y - cyChar;
-    MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
-    LineTo( hdc,pt[1].x,pt[1].y );
-    SetTextAlign( hdc,TA_CENTER | TA_BOTTOM );
-    TextOut( hdc,pt[1].x,pt[1].y,"Z",1 );
+       // Draw small depiction of coordinate axes
+       pt[0].x = rc.right  - cxChar   - cxChar / 2 -  cyChar;
+       pt[0].y = rc.bottom - cyChar / 2 - cxChar / 2;
+       pt[1].x = pt[0].x + (int)( cyChar * COSXA );
+       pt[1].y = pt[0].y - (int)( cyChar * SINXA );
+       MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
+       LineTo( hdc,pt[1].x,pt[1].y );
+       SetTextAlign( hdc,TA_LEFT | TA_TOP );
+       TextOut( hdc,pt[1].x,pt[1].y - cyChar / 2,"X",1 );
+       pt[1].x = pt[0].x - (int)( cyChar * COSYA );
+       pt[1].y = pt[0].y - (int)( cyChar * SINYA );
+       MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
+       LineTo( hdc,pt[1].x,pt[1].y );
+       SetTextAlign( hdc,TA_RIGHT | TA_TOP );
+       TextOut( hdc,pt[1].x,pt[1].y - cyChar / 2,"Y",1 );
+       pt[1].x = pt[0].x;
+       pt[1].y = pt[0].y - cyChar;
+       MoveToEx( hdc,pt[0].x,pt[0].y,NULL );
+       LineTo( hdc,pt[1].x,pt[1].y );
+       SetTextAlign( hdc,TA_CENTER | TA_BOTTOM );
+       TextOut( hdc,pt[1].x,pt[1].y,"Z",1 );
 #else
-    L = 2 * (double) cyChar / SF;
-    v[0].p[0] = 0.;
-    v[0].p[1] = 0.;
-    v[0].p[2] = 0.;
-    v[1].p[0] = L;
-    v[1].p[1] = 0.;
-    v[1].p[2] = 0.;
-    v[2].p[0] = 0.;
-    v[2].p[1] = L;
-    v[2].p[2] = 0.;
-    v[3].p[0] = 0.;
-    v[3].p[1] = 0.;
-    v[3].p[2] = L;
-    for (i = 0; i <= 3; i++) {
-        project(&v[i]);
-        Scale(rc, v[i], &pt[i]);
-    }
-    for (i = 1; i <= 3; i++) {
-        pt[i].x += -pt[0].x + rc.right - 2 * cyChar;
-        pt[i].y += -pt[0].y + rc.bottom + 2 * cyChar;
-    }
-    pt[0].x = rc.right - 2 * cyChar;
-    pt[0].y = rc.bottom + 2 * cyChar;
-
-    for (i = 1; i <= 3; i++) {
-        g_GLTable.m_pfn_qglBegin(GL_LINES);
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglVertex2i(pt[i].x, pt[i].y);
-        g_GLTable.m_pfn_qglEnd();
-        texfont_write(axis[i - 1], pt[i].x - cxChar / 2, pt[i].y + cyChar / 2);
-    }
+       L = 2 * (double)cyChar / SF;
+       v[0].p[0] = 0.;
+       v[0].p[1] = 0.;
+       v[0].p[2] = 0.;
+       v[1].p[0] = L;
+       v[1].p[1] = 0.;
+       v[1].p[2] = 0.;
+       v[2].p[0] = 0.;
+       v[2].p[1] = L;
+       v[2].p[2] = 0.;
+       v[3].p[0] = 0.;
+       v[3].p[1] = 0.;
+       v[3].p[2] = L;
+       for ( i = 0; i <= 3; i++ )
+       {
+               project( &v[i] );
+               Scale( rc,v[i],&pt[i] );
+       }
+       for ( i = 1; i <= 3; i++ )
+       {
+               pt[i].x += -pt[0].x + rc.right  - 2 * cyChar;
+               pt[i].y += -pt[0].y + rc.bottom + 2 * cyChar;
+       }
+       pt[0].x = rc.right  - 2 * cyChar;
+       pt[0].y = rc.bottom + 2 * cyChar;
+
+       for ( i = 1; i <= 3; i++ )
+       {
+               g_GLTable.m_pfn_qglBegin( GL_LINES );
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+               g_GLTable.m_pfn_qglVertex2i( pt[i].x, pt[i].y );
+               g_GLTable.m_pfn_qglEnd();
+               texfont_write( axis[i - 1], pt[i].x - cxChar / 2,pt[i].y + cyChar / 2 );
+       }
 #endif
 
-    // Draw player model's bounding box in red to give a sense of scale
-    // PEN_RED
-    g_GLTable.m_pfn_qglLineWidth(2);
-    g_GLTable.m_pfn_qglColor3f(1, 0, 0);
-    g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
-
-    switch (Plane) {
-        case PLANE_XY1:
-            v[0].p[0] = xyz[NH / 2][NV / 2].p[0] + PlayerBox[Game].x[0];
-            v[0].p[1] = xyz[NH / 2][NV / 2].p[1] + PlayerBox[Game].y[0];
-            v[0].p[2] = zmin - PlayerBox[Game].z[0] - 32;
-            break;
-        case PLANE_XZ0:
-            v[0].p[0] = (xmax + xmin) / 2 + PlayerBox[Game].x[0];
-            v[0].p[1] = ymax + 64;
-            v[0].p[2] = zmin;
-            break;
-        case PLANE_XZ1:
-            v[0].p[0] = (xmax + xmin) / 2 + PlayerBox[Game].x[0];
-            v[0].p[1] = ymin - 64;
-            v[0].p[2] = zmin;
-            break;
-        case PLANE_YZ0:
-            v[0].p[0] = xmax + 64;
-            v[0].p[1] = (ymax + ymin) / 2 + PlayerBox[Game].y[0];
-            v[0].p[2] = zmin;
-            break;
-        case PLANE_YZ1:
-            v[0].p[0] = xmin - 64;
-            v[0].p[1] = (ymax + ymin) / 2 + PlayerBox[Game].y[0];
-            v[0].p[2] = zmin;
-            break;
-        default:
-            // Put player on a node. For patches, put on an even numbered node.
-            if (Game == QUAKE3 && UsePatches != 0) {
-                if (NH > 2) {
-                    x = Hll + dh * (int) (NH / 2 + 1);
-                } else {
-                    x = Hll + dh * (int) (NH / 2);
-                }
-                if (NV > 2) {
-                    y = Vll + dv * (int) (NV / 2 + 1);
-                } else {
-                    y = Vll + dv * (int) (NV / 2);
-                }
-            } else {
-                if (NH > 1) {
-                    x = Hll + dh * (int) (NH / 2);
-                } else {
-                    x = Hll + dh / 2;
-                }
-                if (NV > 1) {
-                    y = Vll + dv * (int) (NV / 2);
-                } else {
-                    y = Vll + dv / 2;
-                }
-            }
+       // Draw player model's bounding box in red to give a sense of scale
+       // PEN_RED
+       g_GLTable.m_pfn_qglLineWidth( 2 );
+       g_GLTable.m_pfn_qglColor3f( 1, 0, 0 );
+       g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
+
+       switch ( Plane )
+       {
+       case PLANE_XY1:
+               v[0].p[0] = xyz[NH / 2][NV / 2].p[0] + PlayerBox[Game].x[0];
+               v[0].p[1] = xyz[NH / 2][NV / 2].p[1] + PlayerBox[Game].y[0];
+               v[0].p[2] = zmin - PlayerBox[Game].z[0] - 32;
+               break;
+       case PLANE_XZ0:
+               v[0].p[0] = ( xmax + xmin ) / 2 + PlayerBox[Game].x[0];
+               v[0].p[1] = ymax + 64;
+               v[0].p[2] = zmin;
+               break;
+       case PLANE_XZ1:
+               v[0].p[0] = ( xmax + xmin ) / 2 + PlayerBox[Game].x[0];
+               v[0].p[1] = ymin - 64;
+               v[0].p[2] = zmin;
+               break;
+       case PLANE_YZ0:
+               v[0].p[0] = xmax + 64;
+               v[0].p[1] = ( ymax + ymin ) / 2 + PlayerBox[Game].y[0];
+               v[0].p[2] = zmin;
+               break;
+       case PLANE_YZ1:
+               v[0].p[0] = xmin - 64;
+               v[0].p[1] = ( ymax + ymin ) / 2 + PlayerBox[Game].y[0];
+               v[0].p[2] = zmin;
+               break;
+       default:
+               // Put player on a node. For patches, put on an even numbered node.
+               if ( Game == QUAKE3 && UsePatches != 0 ) {
+                       if ( NH > 2 ) {
+                               x = Hll + dh * (int)( NH / 2 + 1 );
+                       }
+                       else{
+                               x = Hll + dh * (int)( NH / 2 );
+                       }
+                       if ( NV > 2 ) {
+                               y = Vll + dv * (int)( NV / 2 + 1 );
+                       }
+                       else{
+                               y = Vll + dv * (int)( NV / 2 );
+                       }
+               }
+               else
+               {
+                       if ( NH > 1 ) {
+                               x = Hll + dh * (int)( NH / 2 );
+                       }
+                       else{
+                               x = Hll + dh / 2;
+                       }
+                       if ( NV > 1 ) {
+                               y = Vll + dv * (int)( NV / 2 );
+                       }
+                       else{
+                               y = Vll + dv / 2;
+                       }
+               }
 //             x = (Hll+Hur)/2.;
 //             y = (Vll+Vur)/2.;
-            v[0].p[0] = x + PlayerBox[Game].x[0];
-            v[0].p[1] = y + PlayerBox[Game].y[0];
-            v[0].p[2] = PlayerStartZ(x, y) + PlayerBox[Game].z[0] + 8; // add 8 cuz I'm a pessimist
-    }
-    v[1].p[0] = v[0].p[0] + PlayerBox[Game].x[1] - PlayerBox[Game].x[0];
-    v[1].p[1] = v[0].p[1];
-    v[1].p[2] = v[0].p[2];
-    v[2].p[0] = v[1].p[0];
-    v[2].p[1] = v[1].p[1] + PlayerBox[Game].y[1] - PlayerBox[Game].y[0];
-    v[2].p[2] = v[0].p[2];
-    v[3].p[0] = v[0].p[0];
-    v[3].p[1] = v[2].p[1];
-    v[3].p[2] = v[0].p[2];
-    VectorCopy(v[0].p, v[4].p);
-    VectorCopy(v[1].p, v[5].p);
-    VectorCopy(v[2].p, v[6].p);
-    VectorCopy(v[3].p, v[7].p);
-    v[4].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-    v[5].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-    v[6].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-    v[7].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-    for (i = 0; i <= 7; i++) {
+               v[0].p[0] = x + PlayerBox[Game].x[0];
+               v[0].p[1] = y + PlayerBox[Game].y[0];
+               v[0].p[2] = PlayerStartZ( x,y ) + PlayerBox[Game].z[0] + 8; // add 8 cuz I'm a pessimist
+       }
+       v[1].p[0] = v[0].p[0] + PlayerBox[Game].x[1] - PlayerBox[Game].x[0];
+       v[1].p[1] = v[0].p[1];
+       v[1].p[2] = v[0].p[2];
+       v[2].p[0] = v[1].p[0];
+       v[2].p[1] = v[1].p[1] + PlayerBox[Game].y[1] - PlayerBox[Game].y[0];
+       v[2].p[2] = v[0].p[2];
+       v[3].p[0] = v[0].p[0];
+       v[3].p[1] = v[2].p[1];
+       v[3].p[2] = v[0].p[2];
+       VectorCopy( v[0].p,v[4].p );
+       VectorCopy( v[1].p,v[5].p );
+       VectorCopy( v[2].p,v[6].p );
+       VectorCopy( v[3].p,v[7].p );
+       v[4].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
+       v[5].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
+       v[6].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
+       v[7].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
+       for ( i = 0; i <= 7; i++ )
+       {
 #ifndef ISOMETRIC
-        project(&v[i]);
+               project( &v[i] );
 #endif
-        Scale(rc, v[i], &pt[i]);
-    }
-    g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-    g_GLTable.m_pfn_qglVertex2i(pt[3].x, pt[3].y);
-    for (i = 0; i <= 3; i++) {
-        g_GLTable.m_pfn_qglVertex2i(pt[i].x, pt[i].y);
-    }
-    g_GLTable.m_pfn_qglEnd();
-    g_GLTable.m_pfn_qglBegin(GL_LINE_STRIP);
-    g_GLTable.m_pfn_qglVertex2i(pt[7].x, pt[7].y);
-    for (i = 4; i <= 7; i++) {
-        g_GLTable.m_pfn_qglVertex2i(pt[i].x, pt[i].y);
-    }
-    g_GLTable.m_pfn_qglEnd();
-    g_GLTable.m_pfn_qglBegin(GL_LINES);
-    for (i = 0; i <= 3; i++) {
-        g_GLTable.m_pfn_qglVertex2i(pt[i].x, pt[i].y);
-        g_GLTable.m_pfn_qglVertex2i(pt[i + 4].x, pt[i + 4].y);
-    }
-    g_GLTable.m_pfn_qglEnd();
-
-    g_GLTable.m_pfn_qglLineWidth(1);
-    g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-    g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
+               Scale( rc,v[i],&pt[i] );
+       }
+       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+       g_GLTable.m_pfn_qglVertex2i( pt[3].x, pt[3].y );
+       for ( i = 0; i <= 3; i++ )
+               g_GLTable.m_pfn_qglVertex2i( pt[i].x, pt[i].y );
+       g_GLTable.m_pfn_qglEnd();
+       g_GLTable.m_pfn_qglBegin( GL_LINE_STRIP );
+       g_GLTable.m_pfn_qglVertex2i( pt[7].x, pt[7].y );
+       for ( i = 4; i <= 7; i++ )
+               g_GLTable.m_pfn_qglVertex2i( pt[i].x, pt[i].y );
+       g_GLTable.m_pfn_qglEnd();
+       g_GLTable.m_pfn_qglBegin( GL_LINES );
+       for ( i = 0; i <= 3; i++ )
+       {
+               g_GLTable.m_pfn_qglVertex2i( pt[i].x,pt[i].y );
+               g_GLTable.m_pfn_qglVertex2i( pt[i + 4].x,pt[i + 4].y );
+       }
+       g_GLTable.m_pfn_qglEnd();
+
+       g_GLTable.m_pfn_qglLineWidth( 1 );
+       g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+       g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
 }
-
 //=============================================================
-void DrawGrid(Rect rc)
-{
-    int i, j, k;
-    double h, w, x, y;
-    Point pt[2];
-    Rect rcBox;
-
-    w = (double) (rc.right - rc.left + 1) - cxChar;
-    h = (double) (rc.top - rc.bottom + 1) - cxChar - cyChar;
-
-    SFG = w / (Hur - Hll);
-    SFG = min(SFG, h / (Vur - Vll));
-
-    // Center drawing
-    X0G = (int) (rc.left + rc.right - (int) (SFG * (Hur - Hll))) / 2;
-    Y0G = (int) (rc.top + rc.bottom + cyChar - (int) (SFG * (Vur - Vll))) / 2;
-
-    g_GLTable.m_pfn_qglLineWidth(2);
-    g_GLTable.m_pfn_qglColor3f(0, 1, 0);
-    g_GLTable.m_pfn_qglDisable(GL_LINE_STIPPLE);
-
-    pt[0].y = Y0G;
-    pt[1].y = Y0G + (int) (SFG * (Vur - Vll));
-    g_GLTable.m_pfn_qglBegin(GL_LINES);
-    for (i = 0; i <= NH; i++) {
-        x = Hll + i * dh;
-        pt[0].x = X0G + (int) (SFG * (x - Hll));
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[1].y);
-    }
-    g_GLTable.m_pfn_qglEnd();
-    pt[0].x = X0G;
-    pt[1].x = X0G + (int) (SFG * (Hur - Hll));
-    g_GLTable.m_pfn_qglBegin(GL_LINES);
-    for (i = 0; i <= NV; i++) {
-        y = Vll + i * dv;
-        pt[0].y = Y0G + (int) (SFG * (Vur - y));
-        g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[0].y);
-    }
-    g_GLTable.m_pfn_qglEnd();
-
-    g_GLTable.m_pfn_qglLineWidth(1);
-
-    // Draw axes
-    pt[0].x = rc.right - cyChar - cxChar - cyChar / 2;
-    pt[0].y = rc.bottom + cyChar / 2;
-    pt[1].x = pt[0].x + cyChar;
-    pt[1].y = pt[0].y;
-    g_GLTable.m_pfn_qglBegin(GL_LINES);
-    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-    g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[1].y);
-    g_GLTable.m_pfn_qglEnd();
-    switch (Plane) {
-        case PLANE_YZ0:
-        case PLANE_YZ1:
-            texfont_write("Y", pt[1].x, pt[1].y + cyChar / 2);
-            break;
-        default:
-            texfont_write("X", pt[1].x, pt[1].y + cyChar / 2);
-    }
-    pt[1].x = pt[0].x;
-    pt[1].y = pt[0].y + cyChar;
-    g_GLTable.m_pfn_qglBegin(GL_LINES);
-    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-    g_GLTable.m_pfn_qglVertex2i(pt[1].x, pt[1].y);
-    g_GLTable.m_pfn_qglEnd();
-    switch (Plane) {
-        case PLANE_XY0:
-        case PLANE_XY1:
-            texfont_write("Y", pt[1].x - cyChar / 2, pt[1].y + cyChar);
-            break;
-        default:
-            texfont_write("Z", pt[1].x - cyChar / 2, pt[1].y + cyChar);
-    }
-
-    // Denote fixed points with a 5x5 red rectangle
-    for (i = 0; i <= NH; i++) {
-        for (j = 0; j <= NV; j++) {
-            if (xyz[i][j].fixed) {
-                x = Hll + i * dh;
-                y = Vll + j * dv;
-                rcBox.left = X0G + (int) (SFG * (x - Hll)) - 2;
-                rcBox.top = Y0G + (int) (SFG * (Vur - y)) + 2;
-                rcBox.right = rcBox.left + 5;
-                rcBox.bottom = rcBox.top - 5;
-
-                DRAW_QUAD(rcBox, 1, 0, 0);
-            }
-        }
-    }
-
-    // Denote currently selected point with a 5x5 green rectangle
-    if (NumVerticesSelected) {
-        for (k = 0; k < NumVerticesSelected; k++) {
-            x = Hll + Vertex[k].i * dh;
-            y = Vll + Vertex[k].j * dv;
-            rcBox.left = X0G + (int) (SFG * (x - Hll)) - 2;
-            rcBox.top = Y0G + (int) (SFG * (Vur - y)) + 2;
-            rcBox.right = rcBox.left + 5;
-            rcBox.bottom = rcBox.top - 5;
-
-            DRAW_QUAD(rcBox, 0, 1, 0);
-        }
-    }
-
-    // Unmovable vertices
-    for (i = 0; i <= NH; i++) {
-        for (j = 0; j <= NV; j++) {
-            if (!CanEdit(i, j)) {
-                x = Hll + i * dh;
-                y = Vll + j * dv;
-                rcBox.left = X0G + (int) (SFG * (x - Hll)) - 2;
-                rcBox.top = Y0G + (int) (SFG * (Vur - y)) + 2;
-                rcBox.right = rcBox.left + 5;
-                rcBox.bottom = rcBox.top - 5;
-
-                DRAW_QUAD(rcBox, 1, 1, 0);
-            }
-        }
-    }
-
-    // Legend
-    rcBox.left = rc.left + cxChar / 2 - 2;
-    rcBox.top = rc.top - cyChar / 2 - 2;
-    rcBox.right = rcBox.left + 5;
-    rcBox.bottom = rcBox.top - 5;
-    DRAW_QUAD(rcBox, 1, 0, 0);
-    texfont_write("Fixed points", rcBox.right + cxChar, rcBox.top - 4 + cyChar / 2);
-
-    rcBox.top -= cyChar;
-    rcBox.bottom -= cyChar;
-    DRAW_QUAD(rcBox, 1, 1, 0);
-    texfont_write("Not movable", rcBox.right + cxChar, rcBox.top - 4 + cyChar / 2);
-
-    rcBox.top -= cyChar;
-    rcBox.bottom -= cyChar;
-    DRAW_QUAD(rcBox, 0, 1, 0);
-    texfont_write("Selected", rcBox.right + cxChar, rcBox.top - 4 + cyChar / 2);
+void DrawGrid( Rect rc ){
+       int i, j, k;
+       double h,w,x,y;
+       Point pt[2];
+       Rect rcBox;
+
+       w = (double)( rc.right - rc.left + 1 ) - cxChar;
+       h = (double)( rc.top - rc.bottom + 1 ) - cxChar - cyChar;
+
+       SFG = w / ( Hur - Hll );
+       SFG = min( SFG, h / ( Vur - Vll ) );
+
+       // Center drawing
+       X0G = (int)( rc.left + rc.right - (int)( SFG * ( Hur - Hll ) ) ) / 2;
+       Y0G = (int)( rc.top + rc.bottom + cyChar - (int)( SFG * ( Vur - Vll ) ) ) / 2;
+
+       g_GLTable.m_pfn_qglLineWidth( 2 );
+       g_GLTable.m_pfn_qglColor3f( 0, 1, 0 );
+       g_GLTable.m_pfn_qglDisable( GL_LINE_STIPPLE );
+
+       pt[0].y = Y0G;
+       pt[1].y = Y0G + (int)( SFG * ( Vur - Vll ) );
+       g_GLTable.m_pfn_qglBegin( GL_LINES );
+       for ( i = 0; i <= NH; i++ )
+       {
+               x = Hll + i * dh;
+               pt[0].x = X0G + (int)( SFG * ( x - Hll ) );
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[0].y );
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x, pt[1].y );
+       }
+       g_GLTable.m_pfn_qglEnd();
+       pt[0].x = X0G;
+       pt[1].x = X0G + (int)( SFG * ( Hur - Hll ) );
+       g_GLTable.m_pfn_qglBegin( GL_LINES );
+       for ( i = 0; i <= NV; i++ )
+       {
+               y = Vll + i * dv;
+               pt[0].y = Y0G + (int)( SFG * ( Vur - y ) );
+               g_GLTable.m_pfn_qglVertex2i( pt[0].x,pt[0].y );
+               g_GLTable.m_pfn_qglVertex2i( pt[1].x,pt[0].y );
+       }
+       g_GLTable.m_pfn_qglEnd();
+
+       g_GLTable.m_pfn_qglLineWidth( 1 );
+
+       // Draw axes
+       pt[0].x = rc.right  - cyChar - cxChar - cyChar / 2;
+       pt[0].y = rc.bottom + cyChar / 2;
+       pt[1].x = pt[0].x + cyChar;
+       pt[1].y = pt[0].y;
+       g_GLTable.m_pfn_qglBegin( GL_LINES );
+       g_GLTable.m_pfn_qglVertex2i( pt[0].x,pt[0].y );
+       g_GLTable.m_pfn_qglVertex2i( pt[1].x,pt[1].y );
+       g_GLTable.m_pfn_qglEnd();
+       switch ( Plane )
+       {
+       case PLANE_YZ0:
+       case PLANE_YZ1:
+               texfont_write( "Y", pt[1].x, pt[1].y + cyChar / 2 );
+               break;
+       default:
+               texfont_write( "X", pt[1].x, pt[1].y + cyChar / 2 );
+       }
+       pt[1].x = pt[0].x;
+       pt[1].y = pt[0].y + cyChar;
+       g_GLTable.m_pfn_qglBegin( GL_LINES );
+       g_GLTable.m_pfn_qglVertex2i( pt[0].x,pt[0].y );
+       g_GLTable.m_pfn_qglVertex2i( pt[1].x,pt[1].y );
+       g_GLTable.m_pfn_qglEnd();
+       switch ( Plane )
+       {
+       case PLANE_XY0:
+       case PLANE_XY1:
+               texfont_write( "Y", pt[1].x - cyChar / 2, pt[1].y + cyChar );
+               break;
+       default:
+               texfont_write( "Z", pt[1].x - cyChar / 2, pt[1].y + cyChar );
+       }
+
+       // Denote fixed points with a 5x5 red rectangle
+       for ( i = 0; i <= NH; i++ )
+       {
+               for ( j = 0; j <= NV; j++ )
+               {
+                       if ( xyz[i][j].fixed ) {
+                               x = Hll + i * dh;
+                               y = Vll + j * dv;
+                               rcBox.left   = X0G + (int)( SFG * ( x - Hll ) ) - 2;
+                               rcBox.top    = Y0G + (int)( SFG * ( Vur - y ) ) + 2;
+                               rcBox.right  = rcBox.left + 5;
+                               rcBox.bottom = rcBox.top  - 5;
+
+                               DRAW_QUAD( rcBox, 1,0,0 );
+                       }
+               }
+       }
+
+       // Denote currently selected point with a 5x5 green rectangle
+       if ( NumVerticesSelected ) {
+               for ( k = 0; k < NumVerticesSelected; k++ )
+               {
+                       x = Hll + Vertex[k].i * dh;
+                       y = Vll + Vertex[k].j * dv;
+                       rcBox.left   = X0G + (int)( SFG * ( x - Hll ) ) - 2;
+                       rcBox.top    = Y0G + (int)( SFG * ( Vur - y ) ) + 2;
+                       rcBox.right  = rcBox.left + 5;
+                       rcBox.bottom = rcBox.top  - 5;
+
+                       DRAW_QUAD( rcBox, 0,1,0 );
+               }
+       }
+
+       // Unmovable vertices
+       for ( i = 0; i <= NH; i++ )
+       {
+               for ( j = 0; j <= NV; j++ )
+               {
+                       if ( !CanEdit( i,j ) ) {
+                               x = Hll + i * dh;
+                               y = Vll + j * dv;
+                               rcBox.left   = X0G + (int)( SFG * ( x - Hll ) ) - 2;
+                               rcBox.top    = Y0G + (int)( SFG * ( Vur - y ) ) + 2;
+                               rcBox.right  = rcBox.left + 5;
+                               rcBox.bottom = rcBox.top  - 5;
+
+                               DRAW_QUAD( rcBox, 1,1,0 );
+                       }
+               }
+       }
+
+       // Legend
+       rcBox.left   = rc.left + cxChar / 2 - 2;
+       rcBox.top    = rc.top  - cyChar / 2 - 2;
+       rcBox.right  = rcBox.left + 5;
+       rcBox.bottom = rcBox.top  - 5;
+       DRAW_QUAD( rcBox, 1,0,0 );
+       texfont_write( "Fixed points", rcBox.right + cxChar,rcBox.top - 4 + cyChar / 2 );
+
+       rcBox.top    -= cyChar;
+       rcBox.bottom -= cyChar;
+       DRAW_QUAD( rcBox, 1,1,0 );
+       texfont_write( "Not movable", rcBox.right + cxChar, rcBox.top - 4 + cyChar / 2 );
+
+       rcBox.top    -= cyChar;
+       rcBox.bottom -= cyChar;
+       DRAW_QUAD( rcBox, 0,1,0 );
+       texfont_write( "Selected", rcBox.right + cxChar, rcBox.top - 4 + cyChar / 2 );
 }
 
 //=============================================================
-void GetScaleFactor(Rect rc)
-{
+void GetScaleFactor( Rect rc ){
 #ifdef ISOMETRIC
-    double h, w;
+       double h, w;
 
-    w = (double)( rc.right - rc.left + 1 ) - cxChar;
-    h = (double)( rc.top - rc.bottom + 1 ) - cxChar;
+       w = (double)( rc.right - rc.left + 1 ) - cxChar;
+       h = (double)( rc.top - rc.bottom + 1 ) - cxChar;
 
-    SF = w / ( ( XHi - XLo ) * COSXA + ( YHi - YLo ) * COSYA );
-    SF = min( SF, h / ( ( XHi - XLo ) * SINXA + ( YHi - YLo ) * SINYA + ZHi - ZLo ) );
-    // Center drawing
-    X0 = (int)( rc.left + rc.right - (int)( SF * ( ( XHi - XLo ) * COSXA + ( YHi - YLo ) * COSYA ) ) ) / 2;
-    Y0 = (int)( rc.top + rc.bottom - (int)( SF * ( ( XHi - XLo ) * SINXA + ( YHi - YLo ) * SINYA + ZHi - ZLo ) ) ) / 2;
+       SF = w / ( ( XHi - XLo ) * COSXA + ( YHi - YLo ) * COSYA );
+       SF = min( SF, h / ( ( XHi - XLo ) * SINXA + ( YHi - YLo ) * SINYA + ZHi - ZLo ) );
+       // Center drawing
+       X0 = (int)( rc.left + rc.right - (int)( SF * ( ( XHi - XLo ) * COSXA + ( YHi - YLo ) * COSYA ) ) ) / 2;
+       Y0 = (int)( rc.top + rc.bottom - (int)( SF * ( ( XHi - XLo ) * SINXA + ( YHi - YLo ) * SINYA + ZHi - ZLo ) ) ) / 2;
 
 #else
-    double h, w;
+       double h, w;
 
-    w = (double) (rc.right - rc.left + 1) - cxChar;
-    h = (double) (rc.top - rc.bottom + 1) - cxChar;
+       w = (double)( rc.right - rc.left + 1 ) - cxChar;
+       h = (double)( rc.top - rc.bottom + 1 ) - cxChar;
 
-    SF = w / (Hhi - Hlo);
-    SF = min(SF, h / (Vhi - Vlo));
-    X0 = (int) (rc.left + rc.right - (int) (SF * (Hhi - Hlo))) / 2;
-    Y0 = (int) (rc.top + rc.bottom + (int) (SF * (Vhi - Vlo))) / 2;
+       SF = w / ( Hhi - Hlo );
+       SF = min( SF, h / ( Vhi - Vlo ) );
+       X0 = (int)( rc.left + rc.right - (int)( SF * ( Hhi - Hlo ) ) ) / 2;
+       Y0 = (int)( rc.top + rc.bottom + (int)( SF * ( Vhi - Vlo ) ) ) / 2;
 #endif
 }
 
 //=============================================================
-void Scale(Rect rc, XYZ xyz, Point *pt)
-{
+void Scale( Rect rc,XYZ xyz,Point *pt ){
 
 #ifdef ISOMETRIC
 
-    pt[0].x = X0 + (int)( SF * ( ( xyz.p[0] - XLo ) * COSXA +
-                                 ( YHi - xyz.p[1] ) * COSYA   ) );
-    pt[0].y = Y0 + (int)( SF * (  ZHi - xyz.p[2] +
-                                  ( YHi - xyz.p[1] ) * SINYA +
-                                  ( XHi - xyz.p[0] ) * SINXA   ) );
+       pt[0].x = X0 + (int)( SF * ( ( xyz.p[0] - XLo ) * COSXA +
+                                                                ( YHi - xyz.p[1] ) * COSYA   ) );
+       pt[0].y = Y0 + (int)( SF * (  ZHi - xyz.p[2] +
+                                                                 ( YHi - xyz.p[1] ) * SINYA +
+                                                                 ( XHi - xyz.p[0] ) * SINXA   ) );
 #else
-    pt[0].x = X0 + (int) (SF * (xyz.pp[0] - Hlo));
-    pt[0].y = Y0 - (int) (SF * (Vhi - xyz.pp[1]));
+       pt[0].x = X0 + (int)( SF * ( xyz.pp[0] - Hlo ) );
+       pt[0].y = Y0 - (int)( SF * ( Vhi - xyz.pp[1] ) );
 #endif
 
 }
 
 #ifndef ISOMETRIC
-
 /* ======================================================================= */
-void project(XYZ *v)
-{
-    // project a 3D point (x,y,z) onto view plane
-    double x, y, z, xa, ya, za;
+void project( XYZ *v ){
+       // project a 3D point (x,y,z) onto view plane
+       double x, y, z, xa, ya, za;
 
-    x = v->p[0];
-    y = v->p[1];
-    z = v->p[2];
+       x = v->p[0];
+       y = v->p[1];
+       z = v->p[2];
 
-    // yaw
-    xa = ct[0] * x - st[0] * z;
-    za = st[0] * x + ct[0] * z;
+       // yaw
+       xa = ct[0] * x - st[0] * z;
+       za = st[0] * x + ct[0] * z;
 
-    // roll
-    x = ct[1] * xa + st[1] * y;
-    ya = ct[1] * y - st[1] * xa;
+       // roll
+       x  = ct[1] * xa + st[1] * y;
+       ya = ct[1] * y  - st[1] * xa;
 
-    // azimuth
-    z = ct[2] * za - st[2] * ya;
-    y = ct[2] * ya + st[2] * za;
+       // azimuth
+       z  = ct[2] * za - st[2] * ya;
+       y  = ct[2] * ya + st[2] * za;
 
-    // horizontal and vertical projections:
+       // horizontal and vertical projections:
 //     v->pp[0] = D*x/z;
 //     v->pp[1] = D*y/z;
-    v->pp[0] = -y;
-    v->pp[1] = x;
-    v->pp[2] = z;
-
-    // NOTE: if perspective transformation is desired,
-    // set "persp" to the range from the surface,
-    // then:
-    // v->projected_h = -v->projected_h * persp/(v->projected_z-persp);
-    // v->projected_v = -v->projected_v * persp/(v->projected_z-persp);
+       v->pp[0] = -y;
+       v->pp[1] =  x;
+       v->pp[2] =  z;
+
+       // NOTE: if perspective transformation is desired,
+       // set "persp" to the range from the surface,
+       // then:
+       // v->projected_h = -v->projected_h * persp/(v->projected_z-persp);
+       // v->projected_v = -v->projected_v * persp/(v->projected_z-persp);
 }
-
 /*=======================================================================*/
-void evaluate()
-{
-    int i, j;
-    XYZ v[4];
-
-    if (elevation > PI) {
-        elevation -= 2. * PI;
-    }
-    roll = elevation * sin(azimuth);
-    yaw = 1.5 * PI + elevation * cos(azimuth);
-
-    // Find angles from midpoint to viewpoint:
-    st[0] = sin(yaw);
-    st[1] = sin(roll);
-    st[2] = sin(azimuth);
-    ct[0] = cos(yaw);
-    ct[1] = cos(roll);
-    ct[2] = cos(azimuth);
-
-    for (i = 0; i <= NH; i++) {
-        for (j = 0; j <= NV; j++) {
-            project(&xyz[i][j]);
-        }
-    }
-
-    Hhi = xyz[0][0].pp[0];
-    Hlo = Hhi;
-    Vhi = xyz[0][0].pp[1];
-    Vlo = Vhi;
-    for (i = 0; i <= NH; i++) {
-        for (j = 0; j <= NV; j++) {
-            Hlo = min(Hlo, xyz[i][j].pp[0]);
-            Hhi = max(Hhi, xyz[i][j].pp[0]);
-            Vlo = min(Vlo, xyz[i][j].pp[1]);
-            Vhi = max(Vhi, xyz[i][j].pp[1]);
-        }
-    }
-
-    // Include backface in min-max
-    VectorCopy(xyz[0][0].p, v[0].p);
-    VectorCopy(xyz[NH][0].p, v[1].p);
-    VectorCopy(xyz[NH][NV].p, v[2].p);
-    VectorCopy(xyz[0][NV].p, v[3].p);
-    switch (Plane) {
-        case PLANE_XZ0:
-        case PLANE_XZ1:
-            v[0].p[1] = backface;
-            v[1].p[1] = v[0].p[1];
-            v[2].p[1] = v[0].p[1];
-            v[3].p[1] = v[0].p[1];
-            break;
-        case PLANE_YZ0:
-        case PLANE_YZ1:
-            v[0].p[0] = backface;
-            v[1].p[0] = v[0].p[0];
-            v[2].p[0] = v[0].p[0];
-            v[3].p[0] = v[0].p[0];
-            break;
-        default:
-            v[0].p[2] = backface;
-            v[1].p[2] = v[0].p[2];
-            v[2].p[2] = v[0].p[2];
-            v[3].p[2] = v[0].p[2];
-    }
-    for (i = 0; i <= 3; i++) {
-        project(&v[i]);
-        Hlo = min(Hlo, v[i].pp[0]);
-        Hhi = max(Hhi, v[i].pp[0]);
-        Vlo = min(Vlo, v[i].pp[1]);
-        Vhi = max(Vhi, v[i].pp[1]);
-    }
+void evaluate(){
+       int i, j;
+       XYZ v[4];
+
+       if ( elevation > PI ) {
+               elevation -= 2. * PI;
+       }
+       roll = elevation * sin( azimuth );
+       yaw  = 1.5 * PI + elevation*cos( azimuth );
+
+       //      Find angles from midpoint to viewpoint:
+       st[0] = sin( yaw );
+       st[1] = sin( roll );
+       st[2] = sin( azimuth );
+       ct[0] = cos( yaw );
+       ct[1] = cos( roll );
+       ct[2] = cos( azimuth );
+
+       for ( i = 0; i <= NH; i++ )
+       {
+               for ( j = 0; j <= NV; j++ )
+               {
+                       project( &xyz[i][j] );
+               }
+       }
+
+       Hhi = xyz[0][0].pp[0];
+       Hlo = Hhi;
+       Vhi = xyz[0][0].pp[1];
+       Vlo = Vhi;
+       for ( i = 0; i <= NH; i++ )
+       {
+               for ( j = 0; j <= NV; j++ )
+               {
+                       Hlo = min( Hlo,xyz[i][j].pp[0] );
+                       Hhi = max( Hhi,xyz[i][j].pp[0] );
+                       Vlo = min( Vlo,xyz[i][j].pp[1] );
+                       Vhi = max( Vhi,xyz[i][j].pp[1] );
+               }
+       }
+
+       // Include backface in min-max
+       VectorCopy( xyz[ 0][ 0].p,v[0].p );
+       VectorCopy( xyz[NH][ 0].p,v[1].p );
+       VectorCopy( xyz[NH][NV].p,v[2].p );
+       VectorCopy( xyz[ 0][NV].p,v[3].p );
+       switch ( Plane )
+       {
+       case PLANE_XZ0:
+       case PLANE_XZ1:
+               v[0].p[1] = backface;
+               v[1].p[1] = v[0].p[1];
+               v[2].p[1] = v[0].p[1];
+               v[3].p[1] = v[0].p[1];
+               break;
+       case PLANE_YZ0:
+       case PLANE_YZ1:
+               v[0].p[0] = backface;
+               v[1].p[0] = v[0].p[0];
+               v[2].p[0] = v[0].p[0];
+               v[3].p[0] = v[0].p[0];
+               break;
+       default:
+               v[0].p[2] = backface;
+               v[1].p[2] = v[0].p[2];
+               v[2].p[2] = v[0].p[2];
+               v[3].p[2] = v[0].p[2];
+       }
+       for ( i = 0; i <= 3; i++ )
+       {
+               project( &v[i] );
+               Hlo = min( Hlo,v[i].pp[0] );
+               Hhi = max( Hhi,v[i].pp[0] );
+               Vlo = min( Vlo,v[i].pp[1] );
+               Vhi = max( Vhi,v[i].pp[1] );
+       }
 
 }
-
 #endif