Delay Node, continually sampling the last 20 frames to create a visual echo effect.

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

uniform sampler2D tex; // input
uniform sampler2D tex2; // input delayed by fparams[1], tap 1
uniform sampler2D tex3; // input delayed by fparams[2], tap 2
if(iparams[0]>0) // display tap 1
if(iparams[1]>0) // display tap 2

SETTINGS :

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

NOTES :