Method reposition

test/ShapeTest/src/ShapeTestApp.cpp:248–257

}

void ShapeTestApp::reposition( const vec2 &mouse )
{
	// Convert mouse to object space.
	mat4 invModelMatrix = glm::inverse( mModelMatrix );
	vec2 anchor = vec2( invModelMatrix * vec4( mouse, 0, 1 ) );

	// Calculate new position, anchor and scale.
	mPosition += vec2( mModelMatrix * vec4( anchor - mAnchor, 0, 0 ) );
	mAnchor = anchor;
}

void ShapeTestApp::calculate()
{