goat3d

annotate libs/vmath/ray.h @ 40:a5c5cec3cb88

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- added mesh attribute and face append functions - added Int4 constructor - continued the blender exporter - fixed a bug in clean_filename which made it produce unterminated strings - renamed clean_filename to goat3d_clean_filename and made it extern - added call to goat3d_clean_filename in the mesh XML export code to cleanup ctm filenames
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 13 Oct 2013 10:14:19 +0300
parents 4deb0b12fe14
children
rev   line source
nuclear@27 1 /*
nuclear@27 2 libvmath - a vector math library
nuclear@27 3 Copyright (C) 2004-2011 John Tsiombikas <nuclear@member.fsf.org>
nuclear@27 4
nuclear@27 5 This program is free software: you can redistribute it and/or modify
nuclear@27 6 it under the terms of the GNU Lesser General Public License as published
nuclear@27 7 by the Free Software Foundation, either version 3 of the License, or
nuclear@27 8 (at your option) any later version.
nuclear@27 9
nuclear@27 10 This program is distributed in the hope that it will be useful,
nuclear@27 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@27 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@27 13 GNU Lesser General Public License for more details.
nuclear@27 14
nuclear@27 15 You should have received a copy of the GNU Lesser General Public License
nuclear@27 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@27 17 */
nuclear@27 18
nuclear@27 19 #ifndef VMATH_RAY_H_
nuclear@27 20 #define VMATH_RAY_H_
nuclear@27 21
nuclear@27 22 #include "matrix.h"
nuclear@27 23 #include "vector.h"
nuclear@27 24
nuclear@27 25 typedef struct {
nuclear@27 26 vec3_t origin, dir;
nuclear@27 27 } ray_t;
nuclear@27 28
nuclear@27 29 #ifdef __cplusplus
nuclear@27 30 extern "C" {
nuclear@27 31 #endif /* __cplusplus */
nuclear@27 32
nuclear@28 33 static VMATH_INLINE ray_t ray_cons(vec3_t origin, vec3_t dir);
nuclear@27 34 ray_t ray_transform(ray_t r, mat4_t m);
nuclear@27 35
nuclear@27 36 #ifdef __cplusplus
nuclear@27 37 } /* __cplusplus */
nuclear@27 38
nuclear@27 39 #include <stack>
nuclear@27 40
nuclear@27 41 class Ray {
nuclear@27 42 public:
nuclear@27 43 static scalar_t env_ior;
nuclear@27 44
nuclear@27 45 Vector3 origin, dir;
nuclear@27 46 scalar_t energy;
nuclear@27 47 int iter;
nuclear@27 48 scalar_t ior;
nuclear@27 49 long time;
nuclear@27 50
nuclear@27 51 Ray();
nuclear@27 52 Ray(const Vector3 &origin, const Vector3 &dir);
nuclear@27 53
nuclear@27 54 void transform(const Matrix4x4 &xform);
nuclear@27 55 Ray transformed(const Matrix4x4 &xform) const;
nuclear@27 56 };
nuclear@27 57
nuclear@28 58 VMATH_INLINE Ray reflect_ray(const Ray &inray, const Vector3 &norm);
nuclear@28 59 VMATH_INLINE Ray refract_ray(const Ray &inray, const Vector3 &norm, scalar_t from_ior, scalar_t to_ior);
nuclear@27 60 #endif /* __cplusplus */
nuclear@27 61
nuclear@27 62 #include "ray.inl"
nuclear@27 63
nuclear@27 64 #endif /* VMATH_RAY_H_ */