Wipe Node, key between two nodes with a third node controlling the key

CONTROLS :
        FPARAM0 : to shader fparams[0]
        FPARAM1 : to shader fparams[1]
        FPARAM2 : to shader fparams[2]

uniform sampler2D tex; // left input
uniform sampler2D tex2; // right input
uniform sampler2D tex3; // center input, key

SETTINGS :

ACTIONS :
        Previous FRAG Shader
        Next FRAG Shader
        Random FRAG Shader
        Last FRAG Shader

NOTES :