Toon shader for a cube - outline problem

Hello, I found a better solution with this approach (Pro only, uses Image Effects):

http://www.isotx.com/selection-outlines/

However, the scale approach works only if the origin of the geometry is in the same point as its centroid. Perfect for a cube, and you only have to take out from the common toon/outline shader this line:

 o.pos.xy += offset * o.pos.z * _Outline;

And add the following:

 v.vertex.xyz *= (1 + _Outline);

just before this multiplication in the code nearby:

 o.pos = mul(UNITY_MATRIX_MVP, v.vertex);

<\br>Hope it helps! :)

If I remember it correctly, the outline is created by moving each faces of the mesh away from the original position aligned to the face-normal, before it is rendered behind of your original mesh, so thicker outline means further away from the original face-position.

Orignal + DiOutline -> Outlined Object

To get the real cartoonish full outline, a working way is to perform a dilation of the image and do some simple compositing:

Orignal + Tinted Dilation -> Outlined Object

However, I did this in a photo editing software, and unfortunately I do not know how to do the dilation (2D image manipulation) in a 3D environment. This will be very useful if an efficient shader that can do the same is implemented, so far I do not manage to find to it. You can work on it if you want to, or else you will have to stay put with what is offered by the standard shader.

You can make other cube, scale this to be bigger than original, attach SkyBox shader to it, then change it color to ex. black and you have good looking outline. You can make it by script also.