void vHavokStaticMesh::CreateHkRigidBody()
{
// Create the Havok shape
hkpRigidBodyCinfo cInfo;
cInfo.m_motionType = hkpMotion::MOTION_FIXED;
// We use the first static mesh instance as origin reference
VisStaticMeshInstance_cl *pMeshInstance = m_staticMeshes[0];
cInfo.m_collisionFilterInfo = pMeshInstance->GetCollisionBitmask();
if (cInfo.m_collisionFilterInfo & (1<<15))
{
cInfo.m_collisionFilterInfo &= ~(1<<15);
Vision::Error.Warning("vHavok: Static mesh [%s] has outdated collision information. Please reexport scene.", pMeshInstance->GetMesh()->GetFilename());
}
// Get the scaling of the first static mesh which is used as a reference
{
hkMatrix4 mTransform;
vHavokConversionUtils::VisMatrixToHkMatrix(m_staticMeshes[0]->GetTransform(), mTransform, false, false, true);
hkVector4 vScale;
vScale.set( mTransform.getColumn<0>().lengthSquared<3>(),
mTransform.getColumn<1>().lengthSquared<3>(),
mTransform.getColumn<2>().lengthSquared<3>(),
hkSimdReal_1);
vScale.setSqrt(vScale);
vHavokConversionUtils::PhysVecToVisVec_noscale(vScale,m_vScale);
}
// Create the shape.
// We can either create the shape from mem, or serialize it in (if cached).
// Do not set vHavokShapeFactory::VShapeCreationFlags_SHRINK, so back compat. Better to have as an option.
const int iCreationFlags = (pMeshInstance->GetCollisionBehavior()==VisStaticMeshInstance_cl::VIS_COLLISION_BEHAVIOR_FROMFILE) ?
vHavokShapeFactory::VShapeCreationFlags_ALLOW_PERTRICOLINFO : 0;
hkRefPtr<hkpShape> spShape = vHavokShapeFactory::CreateShapeFromStaticMeshInstances(m_staticMeshes, iCreationFlags, &m_szShapeCacheId);
cInfo.m_shape = spShape;
// When CollisionBehavior_e::FromFile was selected and there is no collisionFilterInfo available from file (due to old vcolmesh format, convex shape),
// a default collisionFilterInfo will be used.
if (cInfo.m_collisionFilterInfo==0)
{
bool bHasMaterialCacheData = false;
const hkpShape *pShape = (hkpShape*)spShape.val();
const hkClass *pClass = pShape->getClassType();
if (pClass == &hkvBvCompressedMeshShapeClass)
{
const hkvBvCompressedMeshShape *pMeshShape = (hkvBvCompressedMeshShape*)(pShape);
bHasMaterialCacheData = pMeshShape->m_userData != HK_NULL;
}
if (!bHasMaterialCacheData)
cInfo.m_collisionFilterInfo = vHavokPhysicsModule::HK_LAYER_COLLIDABLE_STATIC;
}
cInfo.m_numShapeKeysInContactPointProperties = -1; // Ensure shape keys are stored.
m_pRigidBody = new hkpRigidBody(cInfo);
// Set user data to identify this static mesh during collision detection
m_pRigidBody->setUserData((hkUlong)vHavokUserDataPointerPair_t::CombineTypeAndPointer(this, V_USERDATA_STATIC));
// Add our instance to the module
UpdateVision2Havok();
m_module.AddStaticMesh(this);
}
