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Diffstat (limited to 'source/gameengine/Rasterizer/RAS_texmatrix.cpp')
| -rw-r--r-- | source/gameengine/Rasterizer/RAS_texmatrix.cpp | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/source/gameengine/Rasterizer/RAS_texmatrix.cpp b/source/gameengine/Rasterizer/RAS_texmatrix.cpp deleted file mode 100644 index acaec16851b..00000000000 --- a/source/gameengine/Rasterizer/RAS_texmatrix.cpp +++ /dev/null @@ -1,131 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - * - * The Original Code is: all of this file. - * - * Contributor(s): none yet. - * - * ***** END GPL LICENSE BLOCK ***** - */ - -/** \file gameengine/Rasterizer/RAS_texmatrix.cpp - * \ingroup bgerast - */ - - -#include "RAS_TexMatrix.h" - -void RAS_CalcTexMatrix(RAS_TexVert p[3],MT_Point3& origin,MT_Vector3& udir,MT_Vector3& vdir) -{ -// precondition: 3 vertices are non-collinear - - MT_Vector3 vec1 = p[1].xyz()-p[0].xyz(); - MT_Vector3 vec2 = p[2].xyz()-p[0].xyz(); - MT_Vector3 normal = vec1.cross(vec2); - normal.normalize(); - - // determine which coordinate we drop, ie. max coordinate in the normal - - - int ZCOORD = normal.closestAxis(); - int XCOORD = (ZCOORD+1)%3; - int YCOORD = (ZCOORD+2)%3; - - // ax+by+cz+d=0 - MT_Scalar d = -p[0].xyz().dot(normal); - - - MT_Matrix3x3 mat3( p[0].getUV(0)[0],p[0].getUV(0)[1], 1, - p[1].getUV(0)[0],p[1].getUV(0)[1], 1, - p[2].getUV(0)[0],p[2].getUV(0)[1], 1); - - - MT_Matrix3x3 mat3inv = mat3.inverse(); - - MT_Vector3 p123x(p[0].xyz()[XCOORD],p[1].xyz()[XCOORD],p[2].xyz()[XCOORD]); - MT_Vector3 resultx = mat3inv*p123x; - MT_Vector3 p123y(p[0].xyz()[YCOORD],p[1].xyz()[YCOORD],p[2].xyz()[YCOORD]); - MT_Vector3 resulty = mat3inv*p123y; - - // normal[ZCOORD] is not zero, because it's chosen to be maximal (absolute), and normal has length 1, - // so at least on of the coords is <> 0 - - //droppedvalue udir.dot(normal) =0 - MT_Scalar droppedu = -(resultx.x()*normal[XCOORD]+resulty.x()*normal[YCOORD])/normal[ZCOORD]; - udir[XCOORD] = resultx.x(); - udir[YCOORD] = resulty.x(); - udir[ZCOORD] = droppedu; - MT_Scalar droppedv = -(resultx.y()*normal[XCOORD]+resulty.y()*normal[YCOORD])/normal[ZCOORD]; - vdir[XCOORD] = resultx.y(); - vdir[YCOORD] = resulty.y(); - vdir[ZCOORD] = droppedv; - // droppedvalue b = -(ax+cz+d)/y; - MT_Scalar droppedvalue = -((resultx.z()*normal[XCOORD] + resulty.z()*normal[YCOORD]+d))/normal[ZCOORD]; - origin[XCOORD] = resultx.z(); - origin[YCOORD] = resulty.z(); - origin[ZCOORD] = droppedvalue; - - -} - -#ifdef _TEXOWNMAIN - -int main() -{ - - MT_Point2 puv0={0,0}; - MT_Point3 pxyz0 (0,0,128); - - MT_Scalar puv1[2] = {1,0}; - MT_Point3 pxyz1(128,0,128); - - MT_Scalar puv2[2] = {1,1}; - MT_Point3 pxyz2(128,0,0); - - RAS_TexVert p0(pxyz0,puv0); - RAS_TexVert p1(pxyz1,puv1); - RAS_TexVert p2(pxyz2,puv2); - - RAS_TexVert vertices[3] = - { - p0, - p1, - p2 - }; - - MT_Vector3 udir,vdir; - MT_Point3 origin; - CalcTexMatrix(vertices,origin,udir,vdir); - - MT_Point3 testpoint(128,32,64); - - MT_Scalar lenu = udir.length2(); - MT_Scalar lenv = vdir.length2(); - - MT_Scalar testu=((pxyz2-origin).dot(udir))/lenu; - MT_Scalar testv=((pxyz2-origin).dot(vdir))/lenv; - - - - - return 0; -} - -#endif // _TEXOWNMAIN |