bool Face::intersect(const Ray &r, Hit &h, bool intersect_backfacing, bool* backfacing_hit) {
// intersect with each of the subtriangles
Vertex *a = (*this)[0];
Vertex *b = (*this)[1];
Vertex *c = (*this)[2];
Vertex *d = (*this)[3];
return triangle_intersect(r,h,a,b,c,intersect_backfacing, backfacing_hit) || triangle_intersect(r,h,a,c,d,intersect_backfacing, backfacing_hit);
}
bool Model::intersect(const Ray& r, Intersection* info)
{
unsigned int N = mesh->num_triangles();
const MeshVertex* verts = mesh->get_vertices();
Intersection tmpinfo;
info->t = DBL_MAX;
info->idx = -1;
for (unsigned int i = 0; i < N; i++)
{
const unsigned int* vIdxs = mesh->triangles[i].vertices;
if (triangle_intersect(r, verts[vIdxs[0]].position,
verts[vIdxs[1]].position, verts[vIdxs[2]].position, &tmpinfo))
{
if (tmpinfo.t < info->t)
{
*info = tmpinfo;
info->idx = i;
}
}
}
return info->idx != -1;
}
