sfeng/ray-tracer-comp371
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fix for speed node

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This commit is contained in:
Shuo Feng 2024-03-19 22:21:53 -04:00
parent 2a68e2a909
commit 75faed07cc
Signed by: sfeng
GPG key ID: 1E83AE6CD1C037B1
1 changed files with 1 additions and 1 deletions
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2
src/Geometry.cc
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@ -53,7 +53,7 @@ bool isInRectangle(const Vector3f &p, const Vector3f &a, const Vector3f &b,
Optional<float> Rectangle::intersect(const Ray &r) const {
float denom = normal_.dot(r.direction());
if (abs(denom) < 1e-6f)
if (std::fabs(denom) < 1e-6f)
return Optional<float>::nullopt;
float t = -normal_.dot(r.origin() - p1) / denom;