HAVOK如何处理挖洞处的碰撞问题

首先对于山洞类型的shape(一般是CollectionShape),重载接口getCollisionFilterInfo

例如：

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hkUint32 getCollisionFilterInfo( hkpShapeKey key ) const

{

// look up whether there is a hole at x/z using the bitmask

int x = getXFromShapeKey(key) >> m_iTileSamplesX;

int y = getZFromShapeKey(key) >> m_iTileSamplesY;

bool bIsHole = m_TileHoleMask.IsBitSet(x+y*m_iStrideX);

return bIsHole ? m_iNonCollide : m_iCollide;

}

对于射线查询，可以通过hkpShapeRayCastCollectorOutput，这个的属性m_extraInfo，获得对应的shapekey

获得对应的shape后就可以通过getCollisonFilterInfo()来知道碰撞的shape是否为山洞了

例如：

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if( col && col->getCollisionFilterInfo( hitInfo.m_extraInfo )

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<span style="white-space:pre"> </span>== hkpGroupFilter::calcFilterInfo( TERRAIN_HOLE_BITMASK ) )

{

return;

}