X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2FMoof%2FFrustum.cc;fp=src%2FMoof%2FFrustum.cc;h=0000000000000000000000000000000000000000;hp=e56fb7bec94a1056433c91fc2c6c5b8fb980e66f;hb=831f04d4bc19a390415ac0bbac4331c7a65509bc;hpb=299af4f2047e767e5d79501c26444473bda64c64 diff --git a/src/Moof/Frustum.cc b/src/Moof/Frustum.cc deleted file mode 100644 index e56fb7b..0000000 --- a/src/Moof/Frustum.cc +++ /dev/null @@ -1,95 +0,0 @@ - -/*] Copyright (c) 2009-2010, Charles McGarvey [************************** -**] All rights reserved. -* -* vi:ts=4 sw=4 tw=75 -* -* Distributable under the terms and conditions of the 2-clause BSD license; -* see the file COPYING for a complete text of the license. -* -**************************************************************************/ - -#include -#include -#include - - -namespace Mf { - - -void Frustum::init(const Matrix4& modelview, const Matrix4& projection) -{ - Scalar planes[6][4]; - - cml::extract_frustum_planes(modelview, projection, planes, - cml::z_clip_neg_one); - - mPlanes[0] = Plane(planes[0][0], planes[0][1], - planes[0][2], planes[0][3]); - mPlanes[1] = Plane(planes[1][0], planes[1][1], - planes[1][2], planes[1][3]); - mPlanes[2] = Plane(planes[2][0], planes[2][1], - planes[2][2], planes[2][3]); - mPlanes[3] = Plane(planes[3][0], planes[3][1], - planes[3][2], planes[3][3]); - mPlanes[4] = Plane(planes[4][0], planes[4][1], - planes[4][2], planes[4][3]); - mPlanes[5] = Plane(planes[5][0], planes[5][1], - planes[5][2], planes[5][3]); -} - -void Frustum::init(const Matrix4& modelview, Scalar fovy, Scalar aspect, - Scalar abutting, Scalar distant) -{ - Matrix4 projection; - - cml::matrix_perspective_yfov_RH(projection, fovy, aspect, abutting, - distant, cml::z_clip_neg_one); - - init(modelview, projection); -} - -Frustum::Collision Frustum::contains(const Aabb<3>& aabb) const -{ - Vector3 corners[8]; - int nTotalInside = 0; - - aabb.getCorners(corners); - - for (int i = 0; i < 6; ++i) - { - int nInside = 8; - - for (int j = 0; j < 8; ++j) - { - if (mPlanes[i].intersects(corners[j]) == Plane::NEGATIVE) - { - --nInside; - } - } - - if (nInside == 0) return OUTSIDE; - else if (nInside == 8) ++nTotalInside; - } - - if (nTotalInside == 6) return INSIDE; - else return INTERSECT; -} - - -Frustum::Collision Frustum::contains(const Sphere<3>& sphere) const -{ - for (int i = 0; i < 6; ++i) - { - Plane::Halfspace halfspace = mPlanes[i].intersects(sphere); - - if (halfspace == Plane::NEGATIVE) return OUTSIDE; - else if (halfspace == Plane::INTERSECT) return INTERSECT; - } - - return INSIDE; -} - - -} // namespace Mf -