void GdsNode::SetLocalFromWorldTransform( const D3DXMATRIX& matWorld )
{
if(m_pParentNode)
{
D3DXMATRIX matParentWorldInv;
D3DXMatrixInverse( &matParentWorldInv, NULL, &m_pParentNode->GetWorldMatrix());
D3DXMATRIX matLocal = matParentWorldInv * matWorld;
SetLocalMatrix( matLocal );
}
else
{
SetLocalMatrix( matWorld );
}
}
void Transform::SetParent(Transform* newParent)
{
if( newParent == this )
return;
if( parent == newParent )
return;
if( parent != 0 )
parent->RemoveChild(this);
parent = newParent;
if( newParent != 0 )
{
nextSibling = newParent->firstChild;
newParent->firstChild = this;
const Float4x4& world = newParent->GetWorldMatrix();
Float4x4 invWorld = world;
invWorld.Wx = -DotProduct(world.XAxis, world.WAxis);
invWorld.Wy = -DotProduct(world.YAxis, world.WAxis);
invWorld.Wz = -DotProduct(world.ZAxis, world.WAxis);
invWorld.transpose3x3();
Float4x4 newLocal;
Multiply( newLocal, GetWorldMatrix(), invWorld );
SetLocalMatrix(newLocal);
}
}
void Transform::PostMultiply( const glm::mat4 &m )
{
SetLocalMatrix( GetLocalMatrix() * m );
}
void Transform::PreMultiply( const glm::mat4 &m )
{
SetLocalMatrix( m * GetLocalMatrix() );
}
void Transform::Rotate( float angle, glm::vec3 axis )
{
SetLocalMatrix( glm::rotate( angle, axis ) * GetLocalMatrix() );
}
void Transform::Rotate( float angle, float x, float y, float z )
{
SetLocalMatrix( glm::rotate( angle, x, y, z ) * GetLocalMatrix() );
}
