51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* get_obj_normal.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: scebula <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/10/01 15:46:51 by scebula #+# #+# */
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/* Updated: 2017/01/03 12:25:22 by scebula ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "rt.h"
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t_vect get_cylinder_normal(t_obj *obj, t_vect n, t_thread *thread)
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{
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(void)obj;
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(void)thread;
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n.y = 0;
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normalize_vector(&n);
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n.w = 0;
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return (n);
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}
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t_vect get_sphere_normal(t_obj *obj, t_vect n, t_thread *thread)
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{
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(void)thread;
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(void)obj;
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normalize_vector(&n);
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n.w = 0;
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return (n);
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}
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t_vect get_plane_normal(t_obj *obj, t_vect n, t_thread *thread)
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{
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(void)thread;
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(void)n;
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return (TO_PLANE->normal);
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}
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t_vect get_cone_normal(t_obj *obj, t_vect n, t_thread *thread)
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{
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t_vect normal;
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(void)thread;
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normal = init_vector(2 * n.x, -2 * TO_CONE->tan_alpha *
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n.y, 2 * n.z, 0);
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normalize_vector(&normal);
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return (normal);
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}
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