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Don't acknowledge intersections closer than t=1e-2.

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This avoids intersections with the shape itself.
This commit is contained in:
Eryn Wells 2013-09-21 17:02:26 -07:00
parent 6c1e8c7ffb
commit daeb052003
1 changed files with 3 additions and 0 deletions
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3
src/scene.cc
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@ -200,6 +200,9 @@ Scene::trace_ray(const Ray &ray,
nints = s->does_intersect(ray, &t); nints = s->does_intersect(ray, &t);
if (nints > 0) { if (nints > 0) {
for (int i = 0; i < nints; i++) { for (int i = 0; i < nints; i++) {
if (t[i] < 1e-2) {
break;
}
if (t[i] < nearest_t) { if (t[i] < nearest_t) {
intersected_shape = s; intersected_shape = s;
nearest_t = t[i]; nearest_t = t[i];