void ComputeAbsolute(face_t* f, vec3_t& p1, vec3_t& p2, vec3_t& p3)
{
vec3_t ex,ey,ez; // local axis base
#ifdef _DEBUG
if (g_qeglobals.m_bBrushPrimitMode)
Sys_Printf("Warning : illegal call of ComputeAbsolute in brush primitive mode\n");
#endif
// compute first local axis base
TextureAxisFromPlane(&f->plane, ex, ey);
CrossProduct(ex, ey, ez);
vec3_t aux;
VectorCopy(ex, aux);
VectorScale(aux, -f->texdef.shift[0], aux);
VectorCopy(aux, p1);
VectorCopy(ey, aux);
VectorScale(aux, -f->texdef.shift[1], aux);
VectorAdd(p1, aux, p1);
VectorCopy(p1, p2);
VectorAdd(p2, ex, p2);
VectorCopy(p1, p3);
VectorAdd(p3, ey, p3);
VectorCopy(ez, aux);
VectorScale(aux, -f->texdef.rotate, aux);
VectorRotate(p1, aux, p1);
VectorRotate(p2, aux, p2);
VectorRotate(p3, aux, p3);
// computing rotated local axis base
vec3_t rex,rey;
VectorCopy(ex, rex);
VectorRotate(rex, aux, rex);
VectorCopy(ey, rey);
VectorRotate(rey, aux, rey);
ComputeScale(rex,rey,p1,f);
ComputeScale(rex,rey,p2,f);
ComputeScale(rex,rey,p3,f);
// project on normal plane
// along ez
// assumes plane normal is normalized
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p1);
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p2);
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p3);
};
void ComputeAbsolute(face_t* f, vec3_t& p1, vec3_t& p2, vec3_t& p3)
{
vec3_t ex,ey,ez; // local axis base
// compute first local axis base
TextureAxisFromPlane(&f->plane, ex, ey);
CrossProduct(ex, ey, ez);
vec3_t aux;
VectorCopy(ex, aux);
VectorScale(aux, -f->texdef.shift[0], aux);
VectorCopy(aux, p1);
VectorCopy(ey, aux);
VectorScale(aux, -f->texdef.shift[1], aux);
VectorAdd(p1, aux, p1);
VectorCopy(p1, p2);
VectorAdd(p2, ex, p2);
VectorCopy(p1, p3);
VectorAdd(p3, ey, p3);
VectorCopy(ez, aux);
VectorScale(aux, -f->texdef.rotate, aux);
VectorRotate(p1, aux, p1);
VectorRotate(p2, aux, p2);
VectorRotate(p3, aux, p3);
// computing rotated local axis base
vec3_t rex,rey;
VectorCopy(ex, rex);
VectorRotate(rex, aux, rex);
VectorCopy(ey, rey);
VectorRotate(rey, aux, rey);
ComputeScale(rex,rey,p1,f);
ComputeScale(rex,rey,p2,f);
ComputeScale(rex,rey,p3,f);
// project on normal plane
// along ez
// assumes plane normal is normalized
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p1);
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p2);
ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p3);
};
