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Add min_weight property to Scene

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This commit is contained in:
Eryn Wells 2013-09-21 17:01:11 -07:00
parent 482896cfa1
commit 6c1e8c7ffb
2 changed files with 7 additions and 2 deletions
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3
src/scene.cc
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@ -19,6 +19,7 @@
Scene::Scene()
: width(640), height(480),
max_depth(5),
min_weight(1e-4),
ambient(new AmbientLight()),
shapes(),
lights(),
@ -181,7 +182,7 @@ Scene::trace_ray(const Ray &ray,
const int depth,
const float weight)
{
if (depth >= max_depth) {
if (depth >= max_depth || weight <= min_weight) {
return Color::Black;
}