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Fix precision issue that led to nan values. This fixes #1934

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Ylva Selling
2022-03-23 16:19:10 -04:00
parent 5b4c3da91e
commit aed059a147
1 changed files with 3 additions and 2 deletions
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modules/skybrowser/src/utility.cpp
+3 -2
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@@ -188,8 +188,9 @@ glm::dvec2 fovWindow() {
double angleBetweenVectors(const glm::dvec3& start, const glm::dvec3& end) {
// Find smallest angle between the two vectors
double cos = glm::dot(start, end) / (glm::length(start) * glm::length(end));
return std::acos(cos);
double cos = glm::dot(glm::normalize(start), glm::normalize(end));
// Ensure cos is within defined interval [-1,1]
return std::acos(std::clamp(cos, -1.0, 1.0));
}
glm::dmat4 incrementalAnimationMatrix(const glm::dvec3& start, const glm::dvec3& end,