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Little optimization in mPlane, originally by Winterleaf

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This commit is contained in:
Daniel Buckmaster 2014-11-05 21:17:12 +11:00
parent ad4b06f2bc
commit 8538b5fdbf
1 changed files with 4 additions and 3 deletions
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7
Engine/source/math/mPlane.h
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@ -383,9 +383,10 @@ inline PlaneF::Side PlaneF::whichSide( const OrientedBox3F& obb ) const
// Project the box onto the line defined by the plane center and normal.
// See "3D Game Engine Design" chapter 4.3.2.
const F32 r = obb.getHalfExtents().x * mFabs( mDot( obb.getAxis( 0 ), *this ) ) +
obb.getHalfExtents().y * mFabs( mDot( obb.getAxis( 1 ), *this ) ) +
obb.getHalfExtents().z * mFabs( mDot( obb.getAxis( 2 ), *this ) );
Point3F mObbHalf = obb.getHalfExtents();
const F32 r = mObbHalf.x * mFabs( mDot( obb.getAxis( 0 ), *this ) ) +
mObbHalf.y * mFabs( mDot( obb.getAxis( 1 ), *this ) ) +
mObbHalf.z * mFabs( mDot( obb.getAxis( 2 ), *this ) );
const F32 dist = distToPlane( obb.getCenter() );
if( dist > r )