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/*
Copyright (c) 2005-2018 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
The original source for this example is
Copyright (c) 1994-2008 John E. Stone
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
/*
* triangle.h - This file contains the defines for triangles etc.
*
* $Id: triangle.h,v 1.2 2007-02-22 17:54:16 Exp $
*/
object * newtri(void *, vector, vector, vector);
object * newstri(void *, vector, vector, vector, vector, vector, vector);
#ifdef TRIANGLE_PRIVATE
#define TRIXMAJOR 0
#define TRIYMAJOR 1
#define TRIZMAJOR 2
typedef struct {
unsigned int id; /* Unique Object serial number */
void * nextobj; /* pointer to next object in list */
object_methods * methods; /* this object's methods */
texture * tex; /* object texture */
vector edge2;
vector edge1;
vector v0;
} tri;
typedef struct {
unsigned int id; /* Unique Object serial number */
void * nextobj; /* pointer to next object in list */
object_methods * methods; /* this object's methods */
texture * tex; /* object texture */
vector edge2;
vector edge1;
vector v0;
vector n0;
vector n1;
vector n2;
} stri;
static int tri_bbox(void * obj, vector * min, vector * max);
static void tri_intersect(tri *, ray *);
static void tri_normal(tri *, vector *, ray *, vector *);
static void stri_normal(stri *, vector *, ray *, vector *);
#endif
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