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ray hitnormal is already in worldspace for convex objects, but not for trianglemeshes (ray is transformed in local space)

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ejcoumans
2007-07-27 23:52:33 +00:00
parent c57c863112
commit a1fabc4b91
2 changed files with 14 additions and 5 deletions
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13
src/BulletCollision/CollisionDispatch/btCollisionWorld.h
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@@ -166,7 +166,7 @@ public:
:m_closestHitFraction(btScalar(1.))
{
}
virtual btScalar AddSingleResult(LocalRayResult& rayResult) = 0;
virtual btScalar AddSingleResult(LocalRayResult& rayResult,bool normalInWorldSpace) = 0;
};
struct ClosestRayResultCallback : public RayResultCallback
@@ -185,7 +185,7 @@ public:
btVector3 m_hitPointWorld;
btCollisionObject* m_collisionObject;
virtual btScalar AddSingleResult(LocalRayResult& rayResult)
virtual btScalar AddSingleResult(LocalRayResult& rayResult,bool normalInWorldSpace)
{
//caller already does the filter on the m_closestHitFraction
@@ -193,7 +193,14 @@ public:
m_closestHitFraction = rayResult.m_hitFraction;
m_collisionObject = rayResult.m_collisionObject;
m_hitNormalWorld = m_collisionObject->getWorldTransform().getBasis()*rayResult.m_hitNormalLocal;
if (normalInWorldSpace)
{
m_hitNormalWorld = rayResult.m_hitNormalLocal;
} else
{
///need to transform normal into worldspace
m_hitNormalWorld = m_collisionObject->getWorldTransform().getBasis()*rayResult.m_hitNormalLocal;
}
m_hitPointWorld.setInterpolate3(m_rayFromWorld,m_rayToWorld,rayResult.m_hitFraction);
return rayResult.m_hitFraction;
}