istereo

annotate libs/vmath/ray.h @ 43:73813c1176de

better hgignore
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 14 Aug 2015 04:33:42 +0300
parents c0ae8e668447
children
rev   line source
nuclear@39 1 /*
nuclear@39 2 libvmath - a vector math library
nuclear@39 3 Copyright (C) 2004-2011 John Tsiombikas <nuclear@member.fsf.org>
nuclear@39 4
nuclear@39 5 This program is free software: you can redistribute it and/or modify
nuclear@39 6 it under the terms of the GNU Lesser General Public License as published
nuclear@39 7 by the Free Software Foundation, either version 3 of the License, or
nuclear@39 8 (at your option) any later version.
nuclear@39 9
nuclear@39 10 This program is distributed in the hope that it will be useful,
nuclear@39 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@39 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@39 13 GNU Lesser General Public License for more details.
nuclear@39 14
nuclear@39 15 You should have received a copy of the GNU Lesser General Public License
nuclear@39 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@39 17 */
nuclear@39 18
nuclear@28 19 #ifndef VMATH_RAY_H_
nuclear@28 20 #define VMATH_RAY_H_
nuclear@28 21
nuclear@28 22 #include "matrix.h"
nuclear@28 23 #include "vector.h"
nuclear@28 24
nuclear@28 25 typedef struct {
nuclear@28 26 vec3_t origin, dir;
nuclear@28 27 } ray_t;
nuclear@28 28
nuclear@28 29 #ifdef __cplusplus
nuclear@28 30 extern "C" {
nuclear@28 31 #endif /* __cplusplus */
nuclear@28 32
nuclear@28 33 static inline ray_t ray_cons(vec3_t origin, vec3_t dir);
nuclear@28 34 ray_t ray_transform(ray_t r, mat4_t m);
nuclear@28 35
nuclear@28 36 #ifdef __cplusplus
nuclear@28 37 } /* __cplusplus */
nuclear@28 38
nuclear@28 39 #include <stack>
nuclear@28 40
nuclear@28 41 class Ray {
nuclear@28 42 private:
nuclear@28 43 std::stack<scalar_t> ior_stack;
nuclear@28 44
nuclear@28 45 public:
nuclear@28 46 /* enviornmental index of refraction, normally 1.0 */
nuclear@28 47 static scalar_t env_ior;
nuclear@28 48
nuclear@28 49 Vector3 origin, dir;
nuclear@28 50 scalar_t energy;
nuclear@28 51 int iter;
nuclear@28 52 scalar_t ior;
nuclear@28 53 long time;
nuclear@28 54
nuclear@28 55 Ray();
nuclear@28 56 Ray(const Vector3 &origin, const Vector3 &dir);
nuclear@28 57
nuclear@28 58 void transform(const Matrix4x4 &xform);
nuclear@28 59 Ray transformed(const Matrix4x4 &xform) const;
nuclear@28 60
nuclear@28 61 void enter(scalar_t new_ior);
nuclear@28 62 void leave();
nuclear@28 63
nuclear@28 64 scalar_t calc_ior(bool entering, scalar_t mat_ior = 1.0) const;
nuclear@28 65 };
nuclear@28 66
nuclear@28 67 inline Ray reflect_ray(const Ray &inray, const Vector3 &norm);
nuclear@28 68 inline Ray refract_ray(const Ray &inray, const Vector3 &norm, scalar_t ior, bool entering, scalar_t ray_mag = -1.0);
nuclear@28 69 #endif /* __cplusplus */
nuclear@28 70
nuclear@28 71 #include "ray.inl"
nuclear@28 72
nuclear@28 73 #endif /* VMATH_RAY_H_ */