projectorwaves.hlsl

// For use with e.g. Media Player Classic
// (c) Mindbleach 2020  , no rights reserved
// Treat as licensed under MIT if that makes life easier for you.
 
// After https://www.reddit.com/r/ContagiousLaughter/comments/fim6di/watching_twilight_on_a_poorly_hung_projector/
 
sampler s0 : register(s0);      
 
float4 main(float2 tex : TEXCOORD0) : COLOR
{
    tex.x += 0.01 * sin( 40 * tex.x );
    tex.y += 0.03 * cos( 10 * tex.y ) ;
 
    float4 color = tex2D(s0, tex);
 
    return color;
}