/*
-GenSurf plugin for GtkRadiant
-Copyright (C) 2001 David Hyde, Loki software and qeradiant.com
+ GenSurf plugin for GtkRadiant
+ Copyright (C) 2001 David Hyde, Loki software and qeradiant.com
-This library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
-License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Lesser General Public License for more details.
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
-You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
#include <stdlib.h>
#include <math.h>
#include "gensurf.h"
#define MAX_FACES 128 // Maximum number of faces on a brush
-#define MAX_POINTS_ON_WINDING 64
-#define SIDE_FRONT 0
-#define SIDE_ON 2
-#define SIDE_BACK 1
-#define SIDE_CROSS -2
+#define MAX_POINTS_ON_WINDING 64
+#define SIDE_FRONT 0
+#define SIDE_ON 2
+#define SIDE_BACK 1
+#define SIDE_CROSS -2
//vec3 vec3_origin = {0,0,0};
-void PlaneFromPoints (float *p0, float *p1, float *p2, PLANE *plane)
-{
+void PlaneFromPoints( float *p0, float *p1, float *p2, PLANE *plane ){
vec3 t1, t2;
- vec length;
-
- VectorSubtract (p0, p1, t1);
- VectorSubtract (p2, p1, t2);
- plane->normal[0] = t1[1]*t2[2] - t1[2]*t2[1];
- plane->normal[1] = t1[2]*t2[0] - t1[0]*t2[2];
- plane->normal[2] = t1[0]*t2[1] - t1[1]*t2[0];
-
- length = (vec)(sqrt(plane->normal[0]*plane->normal[0] +
- plane->normal[1]*plane->normal[1] +
- plane->normal[2]*plane->normal[2] ));
- if (length == 0)
- {
- VectorClear(plane->normal);
+ vec length;
+
+ VectorSubtract( p0, p1, t1 );
+ VectorSubtract( p2, p1, t2 );
+ plane->normal[0] = t1[1] * t2[2] - t1[2] * t2[1];
+ plane->normal[1] = t1[2] * t2[0] - t1[0] * t2[2];
+ plane->normal[2] = t1[0] * t2[1] - t1[1] * t2[0];
+
+ length = (vec)( sqrt( plane->normal[0] * plane->normal[0] +
+ plane->normal[1] * plane->normal[1] +
+ plane->normal[2] * plane->normal[2] ) );
+ if ( length == 0 ) {
+ VectorClear( plane->normal );
}
else
{
plane->normal[1] /= length;
plane->normal[2] /= length;
}
- plane->dist = DotProduct (p0, plane->normal);
+ plane->dist = DotProduct( p0, plane->normal );
}
/*
-void VectorMA (vec3 va, vec scale, vec3 vb, vec3 vc)
-{
- vc[0] = va[0] + scale*vb[0];
- vc[1] = va[1] + scale*vb[1];
- vc[2] = va[2] + scale*vb[2];
-}
-
-void CrossProduct (vec3 v1, vec3 v2, vec3 cross)
-{
- cross[0] = v1[1]*v2[2] - v1[2]*v2[1];
- cross[1] = v1[2]*v2[0] - v1[0]*v2[2];
- cross[2] = v1[0]*v2[1] - v1[1]*v2[0];
-}
-*/
+ void VectorMA (vec3 va, vec scale, vec3 vb, vec3 vc)
+ {
+ vc[0] = va[0] + scale*vb[0];
+ vc[1] = va[1] + scale*vb[1];
+ vc[2] = va[2] + scale*vb[2];
+ }
+
+ void CrossProduct (vec3 v1, vec3 v2, vec3 cross)
+ {
+ cross[0] = v1[1]*v2[2] - v1[2]*v2[1];
+ cross[1] = v1[2]*v2[0] - v1[0]*v2[2];
+ cross[2] = v1[0]*v2[1] - v1[1]*v2[0];
+ }
+ */
/*
-=============
-AllocWinding
-=============
-*/
-MY_WINDING *AllocWinding (int points)
-{
- MY_WINDING *w;
- int s;
-
- s = sizeof(vec)*3*points + sizeof(int);
- w = (MY_WINDING*)malloc (s);
- memset (w, 0, s);
+ =============
+ AllocWinding
+ =============
+ */
+MY_WINDING *AllocWinding( int points ){
+ MY_WINDING *w;
+ int s;
+
+ s = sizeof( vec ) * 3 * points + sizeof( int );
+ w = (MY_WINDING*)malloc( s );
+ memset( w, 0, s );
return w;
}
/*
-vec VectorNormalize (vec3 in, vec3 out)
-{
- vec length, ilength;
-
- length = (vec)(sqrt (in[0]*in[0] + in[1]*in[1] + in[2]*in[2]));
- if (length == 0)
- {
- VectorClear (out);
- return 0;
- }
-
- ilength = (vec)1.0/length;
- out[0] = in[0]*ilength;
- out[1] = in[1]*ilength;
- out[2] = in[2]*ilength;
-
- return length;
-}
-*/
+ vec VectorNormalize (vec3 in, vec3 out)
+ {
+ vec length, ilength;
+
+ length = (vec)(sqrt (in[0]*in[0] + in[1]*in[1] + in[2]*in[2]));
+ if (length == 0)
+ {
+ VectorClear (out);
+ return 0;
+ }
+
+ ilength = (vec)1.0/length;
+ out[0] = in[0]*ilength;
+ out[1] = in[1]*ilength;
+ out[2] = in[2]*ilength;
+
+ return length;
+ }
+ */
/*
-=================
-BaseWindingForPlane
-=================
-*/
-MY_WINDING *BaseWindingForPlane (vec3 normal, vec dist)
-{
- int i, x;
- vec max, v;
- vec3 org, vright, vup;
+ =================
+ BaseWindingForPlane
+ =================
+ */
+MY_WINDING *BaseWindingForPlane( vec3 normal, vec dist ){
+ int i, x;
+ vec max, v;
+ vec3 org, vright, vup;
MY_WINDING *w;
// find the major axis
max = -BOGUS_RANGE;
x = -1;
- for (i=0 ; i<3; i++)
+ for ( i = 0 ; i < 3; i++ )
{
- v = (vec)(fabs(normal[i]));
- if (v > max)
- {
+ v = (vec)( fabs( normal[i] ) );
+ if ( v > max ) {
x = i;
max = v;
}
}
- if (x==-1) x = 2;
-
- VectorCopy(vec3_origin,vup);
- switch (x)
+ if ( x == -1 ) {
+ x = 2;
+ }
+
+ VectorCopy( vec3_origin,vup );
+ switch ( x )
{
case 0:
case 1:
vup[2] = 1;
- break;
+ break;
case 2:
vup[0] = 1;
- break;
+ break;
}
- v = DotProduct (vup, normal);
- VectorMA (vup, -v, normal, vup);
- VectorNormalize (vup, vup);
-
- VectorScale (normal, dist, org);
-
- CrossProduct (vup, normal, vright);
-
- VectorScale (vup, 65536, vup);
- VectorScale (vright, 65536, vright);
+ v = DotProduct( vup, normal );
+ VectorMA( vup, -v, normal, vup );
+ VectorNormalize( vup, vup );
+
+ VectorScale( normal, dist, org );
+
+ CrossProduct( vup, normal, vright );
+
+ VectorScale( vup, 65536, vup );
+ VectorScale( vright, 65536, vright );
// project a really big axis aligned box onto the plane
- w = AllocWinding (4);
-
- VectorSubtract (org, vright, w->p[0]);
- VectorAdd (w->p[0], vup, w->p[0]);
-
- VectorAdd (org, vright, w->p[1]);
- VectorAdd (w->p[1], vup, w->p[1]);
-
- VectorAdd (org, vright, w->p[2]);
- VectorSubtract (w->p[2], vup, w->p[2]);
-
- VectorSubtract (org, vright, w->p[3]);
- VectorSubtract (w->p[3], vup, w->p[3]);
-
+ w = AllocWinding( 4 );
+
+ VectorSubtract( org, vright, w->p[0] );
+ VectorAdd( w->p[0], vup, w->p[0] );
+
+ VectorAdd( org, vright, w->p[1] );
+ VectorAdd( w->p[1], vup, w->p[1] );
+
+ VectorAdd( org, vright, w->p[2] );
+ VectorSubtract( w->p[2], vup, w->p[2] );
+
+ VectorSubtract( org, vright, w->p[3] );
+ VectorSubtract( w->p[3], vup, w->p[3] );
+
w->numpoints = 4;
-
- return w;
+
+ return w;
}
-void FreeWinding (MY_WINDING *w)
-{
- if (*(unsigned *)w == 0xdeaddead)
+void FreeWinding( MY_WINDING *w ){
+ if ( *(unsigned *)w == 0xdeaddead ) {
// Error ("FreeWinding: freed a freed winding");
return;
+ }
*(unsigned *)w = 0xdeaddead;
- free (w);
+ free( w );
}
/*
-=============
-ChopWindingInPlace
-=============
-*/
-void ChopWindingInPlace (MY_WINDING **inout, vec3 normal, vec dist, vec epsilon)
-{
+ =============
+ ChopWindingInPlace
+ =============
+ */
+void ChopWindingInPlace( MY_WINDING **inout, vec3 normal, vec dist, vec epsilon ){
MY_WINDING *in;
- vec dists[MAX_POINTS_ON_WINDING+4];
- int sides[MAX_POINTS_ON_WINDING+4];
- int counts[3];
- static vec dot; // VC 4.2 optimizer bug if not static
- int i, j;
+ vec dists[MAX_POINTS_ON_WINDING + 4];
+ int sides[MAX_POINTS_ON_WINDING + 4];
+ int counts[3];
+ static vec dot; // VC 4.2 optimizer bug if not static
+ int i, j;
vec *p1, *p2;
- vec3 mid;
+ vec3 mid;
MY_WINDING *f;
- int maxpts;
+ int maxpts;
in = *inout;
counts[0] = counts[1] = counts[2] = 0;
// determine sides for each point
- for (i=0 ; i<in->numpoints ; i++)
+ for ( i = 0 ; i < in->numpoints ; i++ )
{
- dot = DotProduct (in->p[i], normal);
+ dot = DotProduct( in->p[i], normal );
dot -= dist;
dists[i] = dot;
- if (dot > epsilon)
+ if ( dot > epsilon ) {
sides[i] = SIDE_FRONT;
- else if (dot < -epsilon)
+ }
+ else if ( dot < -epsilon ) {
sides[i] = SIDE_BACK;
+ }
else
{
sides[i] = SIDE_ON;
}
sides[i] = sides[0];
dists[i] = dists[0];
-
- if (!counts[0])
- {
- FreeWinding(in);
+
+ if ( !counts[0] ) {
+ FreeWinding( in );
*inout = NULL;
return;
}
- if (!counts[1])
- return; // inout stays the same
+ if ( !counts[1] ) {
+ return; // inout stays the same
- maxpts = in->numpoints+4; // cant use counts[0]+2 because
- // of fp grouping errors
+ }
+ maxpts = in->numpoints + 4; // cant use counts[0]+2 because
+ // of fp grouping errors
+
+ f = AllocWinding( maxpts );
- f = AllocWinding (maxpts);
-
- for (i=0 ; i<in->numpoints ; i++)
+ for ( i = 0 ; i < in->numpoints ; i++ )
{
p1 = in->p[i];
-
- if (sides[i] == SIDE_ON)
- {
- VectorCopy (p1, f->p[f->numpoints]);
+
+ if ( sides[i] == SIDE_ON ) {
+ VectorCopy( p1, f->p[f->numpoints] );
f->numpoints++;
continue;
}
-
- if (sides[i] == SIDE_FRONT)
- {
- VectorCopy (p1, f->p[f->numpoints]);
+
+ if ( sides[i] == SIDE_FRONT ) {
+ VectorCopy( p1, f->p[f->numpoints] );
f->numpoints++;
}
- if (sides[i+1] == SIDE_ON || sides[i+1] == sides[i])
+ if ( sides[i + 1] == SIDE_ON || sides[i + 1] == sides[i] ) {
continue;
-
- // generate a split point
- p2 = in->p[(i+1)%in->numpoints];
-
- dot = dists[i] / (dists[i]-dists[i+1]);
- for (j=0 ; j<3 ; j++)
- { // avoid round off error when possible
- if (normal[j] == 1)
+ }
+
+ // generate a split point
+ p2 = in->p[( i + 1 ) % in->numpoints];
+
+ dot = dists[i] / ( dists[i] - dists[i + 1] );
+ for ( j = 0 ; j < 3 ; j++ )
+ { // avoid round off error when possible
+ if ( normal[j] == 1 ) {
mid[j] = dist;
- else if (normal[j] == -1)
+ }
+ else if ( normal[j] == -1 ) {
mid[j] = -dist;
- else
- mid[j] = p1[j] + dot*(p2[j]-p1[j]);
+ }
+ else{
+ mid[j] = p1[j] + dot * ( p2[j] - p1[j] );
+ }
}
-
- VectorCopy (mid, f->p[f->numpoints]);
+
+ VectorCopy( mid, f->p[f->numpoints] );
f->numpoints++;
}
-
+
// if (f->numpoints > maxpts)
// Error ("ClipWinding: points exceeded estimate");
// if (f->numpoints > MAX_POINTS_ON_WINDING)
// Error ("ClipWinding: MAX_POINTS_ON_WINDING");
- FreeWinding(in);
+ FreeWinding( in );
*inout = f;
}
-void UseFaceBounds()
-{
- LPVOID vp;
- float Dot, BestDot;
- float planepts[3][3];
- int BestFace;
- int i, j;
- int NumFaces;
- vec3 SurfNormal;
- vec3 vmin,vmax;
- PLANE plane[MAX_FACES*2];
- PLANE pface;
+void UseFaceBounds(){
+ LPVOID vp;
+ float Dot, BestDot;
+ float planepts[3][3];
+ int BestFace;
+ int i, j;
+ int NumFaces;
+ vec3 SurfNormal;
+ vec3 vmin,vmax;
+ PLANE plane[MAX_FACES * 2];
+ PLANE pface;
MY_WINDING *w;
- switch(Plane)
+ switch ( Plane )
{
case PLANE_XY1:
SurfNormal[0] = 0.0;
SurfNormal[1] = 0.0;
- SurfNormal[2] =-1.0;
+ SurfNormal[2] = -1.0;
break;
case PLANE_XZ0:
SurfNormal[0] = 0.0;
break;
case PLANE_XZ1:
SurfNormal[0] = 0.0;
- SurfNormal[1] =-1.0;
+ SurfNormal[1] = -1.0;
SurfNormal[2] = 0.0;
break;
case PLANE_YZ0:
SurfNormal[2] = 0.0;
break;
case PLANE_YZ1:
- SurfNormal[0] =-1.0;
+ SurfNormal[0] = -1.0;
SurfNormal[1] = 0.0;
SurfNormal[2] = 0.0;
break;
#if 0
i = g_FuncTable.m_pfnAllocateSelectedBrushHandles();
- vp = g_FuncTable.m_pfnGetSelectedBrushHandle(0);
- NumFaces = g_FuncTable.m_pfnGetFaceCount(vp);
+ vp = g_FuncTable.m_pfnGetSelectedBrushHandle( 0 );
+ NumFaces = g_FuncTable.m_pfnGetFaceCount( vp );
BestFace = -1;
BestDot = 0.0;
- for(i=0; i<NumFaces; i++)
+ for ( i = 0; i < NumFaces; i++ )
{
- _QERFaceData* QERFaceData = g_FuncTable.m_pfnGetFaceData(vp,i);
+ _QERFaceData* QERFaceData = g_FuncTable.m_pfnGetFaceData( vp,i );
planepts[0][0] = QERFaceData->m_v1[0];
planepts[0][1] = QERFaceData->m_v1[1];
planepts[0][2] = QERFaceData->m_v1[2];
planepts[2][1] = QERFaceData->m_v3[1];
planepts[2][2] = QERFaceData->m_v3[2];
- PlaneFromPoints (planepts[0], planepts[1], planepts[2], &plane[2*i]);
- VectorSubtract (vec3_origin, plane[2*i].normal, plane[2*i+1].normal);
- plane[2*i+1].dist = -plane[2*i].dist;
+ PlaneFromPoints( planepts[0], planepts[1], planepts[2], &plane[2 * i] );
+ VectorSubtract( vec3_origin, plane[2 * i].normal, plane[2 * i + 1].normal );
+ plane[2 * i + 1].dist = -plane[2 * i].dist;
- Dot = DotProduct(plane[2*i].normal,SurfNormal);
- if(Dot > BestDot)
- {
+ Dot = DotProduct( plane[2 * i].normal,SurfNormal );
+ if ( Dot > BestDot ) {
BestDot = Dot;
BestFace = i;
- if(strlen(QERFaceData->m_TextureName))
- strcpy(Texture[Game][0],QERFaceData->m_TextureName);
+ if ( strlen( QERFaceData->m_TextureName ) ) {
+ strcpy( Texture[Game][0],QERFaceData->m_TextureName );
+ }
}
}
- for(i=0; i<NumFaces; i++)
+ for ( i = 0; i < NumFaces; i++ )
{
- if(i==BestFace) continue;
- _QERFaceData* QERFaceData = g_FuncTable.m_pfnGetFaceData(vp,i);
- if(strlen(QERFaceData->m_TextureName))
- {
- if(strcmp(Texture[Game][0],QERFaceData->m_TextureName))
- strcpy(Texture[Game][1],QERFaceData->m_TextureName);
+ if ( i == BestFace ) {
+ continue;
+ }
+ _QERFaceData* QERFaceData = g_FuncTable.m_pfnGetFaceData( vp,i );
+ if ( strlen( QERFaceData->m_TextureName ) ) {
+ if ( strcmp( Texture[Game][0],QERFaceData->m_TextureName ) ) {
+ strcpy( Texture[Game][1],QERFaceData->m_TextureName );
+ }
}
}
g_FuncTable.m_pfnReleaseSelectedBrushHandles();
- w = BaseWindingForPlane (plane[BestFace*2].normal, plane[BestFace*2].dist);
+ w = BaseWindingForPlane( plane[BestFace * 2].normal, plane[BestFace * 2].dist );
- for (i=0 ; i<NumFaces && w; i++)
+ for ( i = 0 ; i < NumFaces && w; i++ )
{
- if (BestFace == i)
+ if ( BestFace == i ) {
continue;
- ChopWindingInPlace (&w, plane[i*2+1].normal, plane[i*2+1].dist, 0);
+ }
+ ChopWindingInPlace( &w, plane[i * 2 + 1].normal, plane[i * 2 + 1].dist, 0 );
+ }
+ if ( !w ) {
+ return;
}
- if(!w) return;
// Get bounding box for this face
vmin[0] = vmax[0] = w->p[0][0];
vmin[1] = vmax[1] = w->p[0][1];
vmin[2] = vmax[2] = w->p[0][2];
- for(j=1; j<w->numpoints; j++)
+ for ( j = 1; j < w->numpoints; j++ )
{
- vmin[0] = min(vmin[0],w->p[j][0]);
- vmin[1] = min(vmin[1],w->p[j][1]);
- vmin[2] = min(vmin[2],w->p[j][2]);
- vmax[0] = max(vmax[0],w->p[j][0]);
- vmax[1] = max(vmax[1],w->p[j][1]);
- vmax[2] = max(vmax[2],w->p[j][2]);
+ vmin[0] = min( vmin[0],w->p[j][0] );
+ vmin[1] = min( vmin[1],w->p[j][1] );
+ vmin[2] = min( vmin[2],w->p[j][2] );
+ vmax[0] = max( vmax[0],w->p[j][0] );
+ vmax[1] = max( vmax[1],w->p[j][1] );
+ vmax[2] = max( vmax[2],w->p[j][2] );
}
- FreeWinding(w);
+ FreeWinding( w );
- VectorCopy(plane[BestFace*2].normal,pface.normal);
- pface.dist = plane[BestFace*2].dist;
- switch(Plane)
+ VectorCopy( plane[BestFace * 2].normal,pface.normal );
+ pface.dist = plane[BestFace * 2].dist;
+ switch ( Plane )
{
case PLANE_XZ0:
case PLANE_XZ1:
- if(pface.normal[1] == 0.) return;
+ if ( pface.normal[1] == 0. ) {
+ return;
+ }
Hll = vmin[0];
Hur = vmax[0];
Vll = vmin[2];
Vur = vmax[2];
- Z00 = (pface.dist - pface.normal[0]*Hll - pface.normal[2]*Vll)/pface.normal[1];
- Z01 = (pface.dist - pface.normal[0]*Hll - pface.normal[2]*Vur)/pface.normal[1];
- Z10 = (pface.dist - pface.normal[0]*Hur - pface.normal[2]*Vll)/pface.normal[1];
- Z11 = (pface.dist - pface.normal[0]*Hur - pface.normal[2]*Vur)/pface.normal[1];
+ Z00 = ( pface.dist - pface.normal[0] * Hll - pface.normal[2] * Vll ) / pface.normal[1];
+ Z01 = ( pface.dist - pface.normal[0] * Hll - pface.normal[2] * Vur ) / pface.normal[1];
+ Z10 = ( pface.dist - pface.normal[0] * Hur - pface.normal[2] * Vll ) / pface.normal[1];
+ Z11 = ( pface.dist - pface.normal[0] * Hur - pface.normal[2] * Vur ) / pface.normal[1];
break;
case PLANE_YZ0:
case PLANE_YZ1:
- if(pface.normal[0] == 0.) return;
+ if ( pface.normal[0] == 0. ) {
+ return;
+ }
Hll = vmin[1];
Hur = vmax[1];
Vll = vmin[2];
Vur = vmax[2];
- Z00 = (pface.dist - pface.normal[1]*Hll - pface.normal[2]*Vll)/pface.normal[0];
- Z01 = (pface.dist - pface.normal[1]*Hll - pface.normal[2]*Vur)/pface.normal[0];
- Z10 = (pface.dist - pface.normal[1]*Hur - pface.normal[2]*Vll)/pface.normal[0];
- Z11 = (pface.dist - pface.normal[1]*Hur - pface.normal[2]*Vur)/pface.normal[0];
+ Z00 = ( pface.dist - pface.normal[1] * Hll - pface.normal[2] * Vll ) / pface.normal[0];
+ Z01 = ( pface.dist - pface.normal[1] * Hll - pface.normal[2] * Vur ) / pface.normal[0];
+ Z10 = ( pface.dist - pface.normal[1] * Hur - pface.normal[2] * Vll ) / pface.normal[0];
+ Z11 = ( pface.dist - pface.normal[1] * Hur - pface.normal[2] * Vur ) / pface.normal[0];
break;
default:
- if(pface.normal[2] == 0.) return;
+ if ( pface.normal[2] == 0. ) {
+ return;
+ }
Hll = vmin[0];
Hur = vmax[0];
Vll = vmin[1];
Vur = vmax[1];
- Z00 = (pface.dist - pface.normal[0]*Hll - pface.normal[1]*Vll)/pface.normal[2];
- Z01 = (pface.dist - pface.normal[0]*Hll - pface.normal[1]*Vur)/pface.normal[2];
- Z10 = (pface.dist - pface.normal[0]*Hur - pface.normal[1]*Vll)/pface.normal[2];
- Z11 = (pface.dist - pface.normal[0]*Hur - pface.normal[1]*Vur)/pface.normal[2];
+ Z00 = ( pface.dist - pface.normal[0] * Hll - pface.normal[1] * Vll ) / pface.normal[2];
+ Z01 = ( pface.dist - pface.normal[0] * Hll - pface.normal[1] * Vur ) / pface.normal[2];
+ Z10 = ( pface.dist - pface.normal[0] * Hur - pface.normal[1] * Vll ) / pface.normal[2];
+ Z11 = ( pface.dist - pface.normal[0] * Hur - pface.normal[1] * Vur ) / pface.normal[2];
}
#endif
}