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Compact some normalization and stuff

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This commit is contained in:
Eryn Wells 2013-09-11 22:11:56 -07:00
parent 0e678938fe
commit a3bdc01d45
1 changed files with 1 additions and 3 deletions
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4
src/scene.cc
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@ -175,9 +175,7 @@ Scene::trace_ray(const Ray &ray, const int depth)
Vector3 normal = intersected_shape->compute_normal(intersection);
for (Light *l : lights) {
Vector3 light_direction = intersection - l->get_origin();
light_direction.normalize();
Vector3 light_direction = (intersection - l->get_origin()).normalize();
float ldotn = light_direction.dot(normal);
out_color.red *= ((ldotn >= 0.0) ? ldotn : 0.0) * l->get_intensity();
out_color.green *= ((ldotn >= 0.0) ? ldotn : 0.0) * l->get_intensity();