t_color texture_plan(t_obj object, t_point inter)
{
float x;
float y;
int colo;
t_point rot;
t_plan *tmp;
normal = normal_sphere(*(t_sphere *)(obj.obj), inter, ray);
if (!object.texture)
return (object.color);
tmp = ((t_plan *)object.obj);
rot = vec_dir(new_point(0, 0, 0), new_point(tmp->a, tmp->b, tmp->c));
x = rot.x + rot.y + rot.z;
inter = rot_point(new_point(inter.x - rot.x * (tmp->d / (tmp->a + tmp->b +
tmp->c)), inter.y - rot.y * (tmp->d / (tmp->a + tmp->b + tmp->c)),
inter.z - rot.z * (tmp->d / (tmp->a + tmp->b + tmp->c))),
get_rot_mat(M_PI / 2 * rot.z / x, 0, -M_PI / 2 * rot.x / x));
colo = 0;
x = (inter.x - floor(inter.x / 30) * 30) / 30 * object.texture->width;
y = (10 - (inter.z - floor(inter.z / 10) * 10))
/ 10 * object.texture->height;
ft_memcpy(&colo, object.texture->data + ((int)x * (object.texture->bpp /
8)) + ((int)y * object.texture->sl), 3);
return (normalize(new_point((def.red * 2 - 255) / 255 + normal.x,
-(def.green * 2 - 255) / 255 + normal.y, (def.blue * 2 - 255)
/ 255 + normal.z)));
}
t_color diffuse_sphere(t_light *li, t_object *obj, t_vec *vi, double sh)
{
t_color col;
t_vec normal;
t_vec u;
double dot;
double diff;
col.r = 0;
col.g = 0;
col.b = 0;
sub_vec(&u, &li->pos, vi);
normalize(&u);
normal = normal_sphere(&obj->prim.sphere, vi);
dot = dot_product(&u, &normal);
if (dot > 0)
{
diff = dot * 0.1 * sh;
diff_col(&col, &obj->color, &li->color, diff);
}
return (col);
}
