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Add float variant to pie_RotateTranslate 

git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@5118 4a71c877-e1ca-e34f-864e-861f7616d084
master
Dennis Schridde 2008-05-14 21:15:59 +00:00
parent 7744c514b5
commit 1bc654f8b5
2 changed files with 22 additions and 1 deletions
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11
lib/ivis_opengl/piematrix.c
View File

@ -381,3 +381,14 @@ void pie_RotateTranslate3iv(const Vector3i *v, Vector3i *s)
s->y = ( v->x * psMatrix->c + v->z * psMatrix->f + v->y * psMatrix->i
+ psMatrix->l ) / FP12_MULTIPLIER;
}
void pie_RotateTranslate3f(const Vector3f *v, Vector3f *s)
{
s->x = ( v->x * psMatrix->a + v->z * psMatrix->d + v->y * psMatrix->g
+ psMatrix->j ) / FP12_MULTIPLIER;
s->z = ( v->x * psMatrix->b + v->z * psMatrix->e + v->y * psMatrix->h
+ psMatrix->k ) / FP12_MULTIPLIER;
s->y = ( v->x * psMatrix->c + v->z * psMatrix->f + v->y * psMatrix->i
+ psMatrix->l ) / FP12_MULTIPLIER;
}

12
lib/ivis_opengl/piematrix.h
View File

@ -41,12 +41,22 @@ extern SDWORD aSinTable[];
/*!
* Rotate and translate v with the worldmatrix. Store the result in s
* int variant
* \param[in] v Vector to translate
* \param[out] s Resulting vector
*/
void pie_RotateTranslate3iv(const Vector3i *v, Vector3i *s);
/*!
* Rotate and translate v with the worldmatrix. Store the result in s
* Float variant
* \param[in] v Vector to translate
* \param[out] s Resulting vector
*/
void pie_RotateTranslate3f(const Vector3f *v, Vector3f *s);
/*!
* Calculate surface normal
* Eg. if a polygon (with n points in clockwise order) normal is required,
@ -72,7 +82,7 @@ static inline WZ_DECL_CONST WZ_DECL_WARN_UNUSED_RESULT
a = Vector3f_Normalise(a);
b = Vector3f_Normalise(b);
{ // MSVC hack
{ // MSVC HACK
Vector3f
v = {
(a.y * b.z) - (a.z * b.y),