Remanent image

hum… hi all… just trying to begin with PS and playing around.
I a m very puzzled because in this example I have a remanent presence in background of the non affected image …

any idea ? ;-) (10.8 kB)

that’s because you are rendering 2 passes.
your ‘p0’ pass is outputting the untransformed texturecoordinates
‘p1’ the ‘waved’ ones.
either use the ‘Technique Pass’ pin and set it on 1 (='p1) or kick ‘p0’ in your shadercode