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Diffstat (limited to 'extern/solid/src/convex/DT_Triangle.cpp')
| -rw-r--r-- | extern/solid/src/convex/DT_Triangle.cpp | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/extern/solid/src/convex/DT_Triangle.cpp b/extern/solid/src/convex/DT_Triangle.cpp deleted file mode 100644 index 1917910b39d..00000000000 --- a/extern/solid/src/convex/DT_Triangle.cpp +++ /dev/null @@ -1,96 +0,0 @@ -/* - * SOLID - Software Library for Interference Detection - * - * Copyright (C) 2001-2003 Dtecta. All rights reserved. - * - * This library may be distributed under the terms of the Q Public License - * (QPL) as defined by Trolltech AS of Norway and appearing in the file - * LICENSE.QPL included in the packaging of this file. - * - * This library may be distributed and/or modified under the terms of the - * GNU General Public License (GPL) version 2 as published by the Free Software - * Foundation and appearing in the file LICENSE.GPL included in the - * packaging of this file. - * - * This library is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE - * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Commercial use or any other use of this library not covered by either - * the QPL or the GPL requires an additional license from Dtecta. - * Please contact info@dtecta.com for enquiries about the terms of commercial - * use of this library. - */ - -//#define BACKFACE_CULLING - -#include "DT_Triangle.h" - -MT_BBox DT_Triangle::bbox() const -{ - return MT_BBox((*this)[0]).hull((*this)[1]).hull((*this)[2]); -} - -MT_Scalar DT_Triangle::supportH(const MT_Vector3& v) const -{ - return GEN_max(GEN_max(v.dot((*this)[0]), v.dot((*this)[1])), v.dot((*this)[2])); -} - -MT_Point3 DT_Triangle::support(const MT_Vector3& v) const -{ - MT_Vector3 dots(v.dot((*this)[0]), v.dot((*this)[1]), v.dot((*this)[2])); - - return (*this)[dots.maxAxis()]; -} - -bool DT_Triangle::ray_cast(const MT_Point3& source, const MT_Point3& target, - MT_Scalar& param, MT_Vector3& normal) const -{ - MT_Vector3 d1 = (*this)[1] - (*this)[0]; - MT_Vector3 d2 = (*this)[2] - (*this)[0]; - MT_Vector3 n = d1.cross(d2); - MT_Vector3 r = target - source; - MT_Scalar delta = -r.dot(n); - - MT_Scalar rounding_error = GEN_max(GEN_max(MT_abs(n[0]), MT_abs(n[1])), MT_abs(n[2])) * MT_EPSILON; - -#ifdef BACKFACE_CULLING - if (delta > rounding_error) -#else - if (MT_abs(delta) > rounding_error) -#endif - // The ray is not parallel to the triangle's plane. - // (Coplanar rays are ignored.) - { - MT_Vector3 b = source - (*this)[0]; - MT_Scalar lambda = b.dot(n) / delta; - - if (MT_Scalar(0.0) <= lambda && lambda <= param) - // The ray intersects the triangle's plane. - { - MT_Vector3 u = b.cross(r); - MT_Scalar mu1 = d2.dot(u) / delta; - - if (MT_Scalar(0.0) <= mu1 && mu1 <= MT_Scalar(1.0)) - { - MT_Scalar mu2 = -d1.dot(u) / delta; - - if (MT_Scalar(0.0) <= mu2 && mu1 + mu2 <= MT_Scalar(1.0)) - // The ray intersects the triangle. - { - param = lambda; - // Return a normal that points at the source. -#ifdef BACKFACE_CULLING - normal = n; -#else - normal = delta > MT_Scalar(0.0) ? n : -n; -#endif - return true; - } - } - } - } - - return false; -} - - |