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Update src/distribution_spatial.cpp

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Co-authored-by: Paul Romano <paul.k.romano@gmail.com>
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Christopher Fichtlscherer 2022-05-10 09:17:50 +02:00 • committed by GitHub
parent 31ebeb1327
commit 9073aa5f72
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1 changed files with 2 additions and 2 deletions
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src/distribution_spatial.cpp
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@ -174,8 +174,8 @@ Position SphericalIndependent::sample(uint64_t* seed) const
double cos_theta = cos_theta_->sample(seed);
double phi = phi_->sample(seed);
// sin(theta) by sin**2 + cos**2 = 1
double x = r * std::pow(1 - std::pow(cos_theta, 2.0), 0.5) * cos(phi) + origin_.x;
double y = r * std::pow(1 - std::pow(cos_theta, 2.0), 0.5) * sin(phi) + origin_.y;
double x = r * std::sqrt(1 - cos_theta * cos_theta) * cos(phi) + origin_.x;
double y = r * std::sqrt(1 - cos_theta * cos_theta) * sin(phi) + origin_.y;
double z = r * cos_theta + origin_.z;
return {x, y, z};
}