KinoGlitch | Video glitch effects for Unity | Game Engine library

_ColorDrift is used to generate a local variable in the shader called drift, this value is then only used in one location to generate the src2 texture.

This texture is then used once, return half4(src1.r, src2.g, src1.b, 1);

Notice that the src2 texture only supplies its Green value. This means that the green channel is offset (generating Green and Anti-Green (Magenta) distortions).

You can adjust this return line to generate Red/Anti-Red (Cyan) distortions or Blue/Anti-Blue (Yellow) distortions. Just change which color value the src2 variable applies to.

Red/Cyan:
return half4(src2.r, src1.g, src1.b, 1);

Blue/Yellow:
return half4(src1.r, src1.g, src2.b, 1);

Note that applying src2 to two of the color channels just flip-flops the distortion (Red/Anti-Red -> Anti-Red/Red) and makes it more intense (the apparent distance the texture jumps is greater).