Snow Shader

I build a snow shader that is bumped, mesh deforming and accumulating.
I build it as part of our game and to get a better understanding how shaders are working in unity.
The idea was to learn about the 4 different aspects of;

• Building an accumulative shader
• Creating a bumped shader
• Modifying the texture applied for a pixel
• Modifying the vertices of a model in a surface shader

The shader should increases the snow level with turning each pixel that faces the snow direction to a snow colour rather than the texture from the material, and to deform the model slightly to get bigger, predominantly on the side the snow is blowing on.

Example Movie

Project Link
Snow Shader