WarpPerspectiveBilinear::WarpPerspectiveBilinear()
	: WarpBilinear()
{
	// change type 
	mType = PERSPECTIVE_BILINEAR;

	// create perspective warp
	mWarp = WarpPerspectiveRef( new WarpPerspective() );
}
WarpPerspectiveBilinear::WarpPerspectiveBilinear( const ci::gl::Fbo::Format &format )
    : WarpBilinear( format )
{
	// change type
	mType = PERSPECTIVE_BILINEAR;

	// create perspective warp
	mWarp = WarpPerspectiveRef( new WarpPerspective() );
}