Digital Ocean - Vertex Shader (No Texture Maps)
This is an additive, unlit vertex shader i made for UDK. It uses no texture maps, it's completely driven by vertex color data, time, and vector parameters. Since most of the work is done in the vertex shader instead of the pixel shader, the GPU has to do significantly less work, making the shader really cheap, unless you bring the camera underneath the surface, in which case it becomes very expensive due to overdraw.