void Start ()
{
a.material.mainTexture = tex;
b.material.mainTexture = TextureFilter.SobelFilter(tex);
c.material.mainTexture = TextureFilter.Convolution(tex, TextureFilter.SHARPEN_KERNEL, 1);
d.material.mainTexture = TextureFilter.Convolution(tex, TextureFilter.LINEAR_KERNEL, 10);
e.material.mainTexture = TextureFilter.Threshold(tex, .5f);
}
