This script simulates the typical cartoon black outline around the target object by doubling and flipping its mesh. Some options can add noise to get funny results. If target object already has a lot of faces - it can become very heavy and may take time to render. If it doesn t have a lot of sharp angles - the other script - WkAnimeLandMaterial - is more adapted. WkAnimeLandOutline is great for low poly objects - and the technique it uses allows real-time rendering.