Droog71/oolite
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

FastInvSqrt does not work for Windows build. Using old code for WIN32 compilations.

Browse Source 
git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@755 127b21dd-08f5-0310-b4b7-95ae10353056
This commit is contained in:
dajt 2007-01-09 23:19:08 +00:00
parent c126f52f1c
commit 64455c3cd6
1 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/Core/vector.c
View File

@ -169,7 +169,11 @@ Vector cross_product (Vector first, Vector second)
mag2 = result.x * result.x + result.y * result.y + result.z * result.z;
if (mag2 > 0.0)
{
#ifndef WIN32
det = FastInvSqrt(mag2);
#else
det = 1.0 / sqrt (mag2);
#endif
result.x *= det; result.y *= det; result.z *= det;
return result;
}
@ -213,7 +217,11 @@ Vector unit_vector (struct vector *vec)
lz = vec->z;
if (lx || ly || lz)
#ifndef WIN32
det = FastInvSqrt(lx * lx + ly * ly + lz * lz);
#else
det = 1.0 / sqrt (lx * lx + ly * ly + lz * lz);
#endif
else
{
det = 1.0;
@ -631,8 +639,11 @@ void quaternion_normalise(struct quaternion *quat)
GLfloat x = quat->x;
GLfloat y = quat->y;
GLfloat z = quat->z;
#ifndef WIN32
GLfloat lv = FastInvSqrt(w*w + x*x + y*y + z*z);
#else
GLfloat lv = 1.0 / sqrt(w*w + x*x + y*y + z*z);
#endif
quat->w = lv * w;
quat->x = lv * x;
quat->y = lv * y;