mirror/glm
1
0
Fork 0
mirror of https://github.com/g-truc/glm.git synced 2024-11-23 01:14:34 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #708 from corporateshark/master

Browse Source 
Fixed #692: sphericalRand() is doing correct distribution on a sphere #708
This commit is contained in:
Christophe 2018-01-04 09:12:41 +01:00 committed by GitHub
commit fa668e26b6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
glm/gtc/random.inl
View File

@ -340,13 +340,12 @@ namespace detail
template<typename T>
GLM_FUNC_QUALIFIER vec<3, T, defaultp> sphericalRand(T Radius)
{
T z = linearRand(T(-1), T(1));
T a = linearRand(T(0), T(6.283185307179586476925286766559f));
T theta = linearRand(T(0), T(6.283185307179586476925286766559f));
T phi = std::acos(linearRand(T(-1.0f), T(1.0f)));
T r = sqrt(T(1) - z * z);
T x = r * std::cos(a);
T y = r * std::sin(a);
T x = std::sin(phi) * std::cos(theta);
T y = std::sin(phi) * std::sin(theta);
T z = std::cos(phi);
return vec<3, T, defaultp>(x, y, z) * Radius;
}