90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* init_obj_triangle.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: ntrahy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/01/02 23:22:37 by ntrahy #+# #+# */
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/* Updated: 2017/01/09 19:20:26 by scebula ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "rt.h"
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t_triangle *free_triangle(t_triangle *triangle)
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{
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if (triangle)
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{
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free_tf_list(&(triangle->tf_list));
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free_cut(&triangle->cut);
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free_triangle(triangle);
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triangle = NULL;
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}
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return (NULL);
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}
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t_vect compute_triangle_normal(t_triangle *triangle)
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{
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t_vect normal;
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normal = cross_product_vector(triangle->ab, triangle->cb);
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normalize_vector(&normal);
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return (normal);
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}
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void calculate_sides(t_triangle *triangle)
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{
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triangle->ab = init_vector(triangle->b.x - triangle->a.x,
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triangle->b.y - triangle->a.y,
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triangle->b.z - triangle->a.z, 0);
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triangle->ac = init_vector(triangle->c.x - triangle->a.x,
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triangle->c.y - triangle->a.y,
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triangle->c.z - triangle->a.z, 0);
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triangle->ba = init_vector(triangle->a.x - triangle->b.x,
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triangle->a.y - triangle->b.y,
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triangle->a.z - triangle->b.z, 0);
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triangle->bc = init_vector(triangle->c.x - triangle->b.x,
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triangle->c.y - triangle->b.y,
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triangle->c.z - triangle->b.z, 0);
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triangle->ca = init_vector(triangle->a.x - triangle->c.x,
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triangle->a.y - triangle->c.y,
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triangle->a.z - triangle->c.z, 0);
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triangle->cb = init_vector(triangle->b.x - triangle->c.x,
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triangle->b.y - triangle->c.y,
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triangle->b.z - triangle->c.z, 0);
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}
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t_triangle *compute_triangle(t_triangle *triangle)
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{
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calculate_sides(triangle);
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triangle->normal = compute_triangle_normal(triangle);
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triangle->distance = dot_product_vector(triangle->normal, triangle->a);
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return (triangle);
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}
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t_triangle *init_triangle(void)
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{
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t_triangle *triangle;
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triangle = (t_triangle *)ft_memalloc(sizeof(t_triangle));
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triangle->tf_list = NULL;
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triangle->a = init_vector(0, 0, 0, 1);
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triangle->b = init_vector(0, 0, 0, 1);
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triangle->c = init_vector(0, 0, 0, 1);
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triangle->ab = init_vector(0, 0, 0, 0);
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triangle->ac = init_vector(0, 0, 0, 0);
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triangle->ba = init_vector(0, 0, 0, 0);
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triangle->bc = init_vector(0, 0, 0, 0);
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triangle->ca = init_vector(0, 0, 0, 0);
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triangle->cb = init_vector(0, 0, 0, 0);
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triangle->normal = init_vector(0, 0, 0, 0);
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triangle->distance = 0;
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triangle->color = set_color(255, 0, 0);
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triangle->reflection = 0.5;
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triangle->shine = 0.5;
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triangle->texture = NULL;
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triangle->bumpmap = NULL;
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return (triangle);
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}
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