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Use f64 version of reciprocal_squareroot in quaternion::normalize for more precision.

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The f32 version jumped around more on gcc/linux (didn't do so with VisualStudio, mabye sqrt on VS already uses double internally).


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6036 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien 2020-01-03 17:09:39 +00:00
parent 34d09f7c63
commit 5d0b042a65
3 changed files with 9 additions and 9 deletions
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2
include/quaternion.h
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@ -585,7 +585,7 @@ inline quaternion& quaternion::normalize()
{ {
// removed conditional branch since it may slow down and anyway the condition was // removed conditional branch since it may slow down and anyway the condition was
// false even after normalization in some cases. // false even after normalization in some cases.
return (*this *= reciprocal_squareroot ( X*X + Y*Y + Z*Z + W*W )); return (*this *= (f32)reciprocal_squareroot ( (f64)(X*X + Y*Y + Z*Z + W*W) ));
} }
// Set this quaternion to the result of the linear interpolation between two quaternions // Set this quaternion to the result of the linear interpolation between two quaternions

2
tests/tests-last-passed-at.txt
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@ -1,4 +1,4 @@
Tests finished. 72 tests of 72 passed. Tests finished. 72 tests of 72 passed.
Compiled as DEBUG Compiled as DEBUG
Test suite pass at GMT Fri Jan 03 14:40:24 2020 Test suite pass at GMT Fri Jan 3 17:05:41 2020