mewin/glm
1
0
Fork 0
Code Releases Activity

Fix rotation when vectors are in the same direction #690

Browse Source
This commit is contained in:
Olivier Sohn 2017-10-21 21:17:55 +02:00
parent 7733266417
commit 6f61bb4d2e
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
glm/gtx/quaternion.inl
View File

@ -184,8 +184,10 @@ namespace glm
T cosTheta = dot(orig, dest); T cosTheta = dot(orig, dest);
vec<3, T, Q> rotationAxis; vec<3, T, Q> rotationAxis;
if(cosTheta >= static_cast<T>(1) - epsilon<T>()) if(cosTheta >= static_cast<T>(1) - epsilon<T>()) {
return quat(); // orig and dest point in the same direction : return identity quaternion.
return quat(1, 0, 0, 0);
}
if(cosTheta < static_cast<T>(-1) + epsilon<T>()) if(cosTheta < static_cast<T>(-1) + epsilon<T>())
{ {