[Sean Mcclintock]

Ok, thanks again for taking a look at it Dan.

[Sean Mcclintock]

Thanks for checking this out Dan. It’s applied to Time Remap. Unfortunately the comp that it’s referencing isn’t affected by the expression. Here’s a link to the file: https://dl.dropboxusercontent.com/u/1881942/Coke-TimeRemap-CC-v024.aep

Usually I can trigger the error loop by attempting to duplicate the comp in the project window.

[Sean Mcclintock]

Everything is working but I (seemingly randomly) keep getting an After Effects error: unsafe operation attempted ( 58 :: 0 ). Occurs in a loop which effectively crashes After Effects. Do I need to put in some sort of if statement to check for something?

targetLayer =thisComp.layer("Controls").effect("B&W Map")("Layer")
samplePoint = transform.position
sampleRadius = [1,1];
above = false;

for (f = timeToFrames();
f>= timeToFrames(inPoint); f--){
t = framesToTime(f);
sampledColor_8bpc = 255 * targetLayer.sampleImage(samplePoint, sampleRadius,true,t);
R = Math.round(sampledColor_8bpc[0]);

if (R>1 ){
above = true; break;
}
}

if (above) time - t else 0
;

[Sean Mcclintock]

Yeah, works like a charm. Thanks again Dan.

targetLayer =thisComp.layer("Controls").effect("B&W Map")("Layer")
samplePoint = transform.position
sampleRadius = [1,1];
above = false;

for (f = timeToFrames(inPoint);
f<= timeToFrames(); f++){
t = framesToTime(f);
sampledColor_8bpc = 255 * targetLayer.sampleImage(samplePoint, sampleRadius,true,t);
R = Math.round(sampledColor_8bpc[0]);

if (R<1 ){ above = true; break;
}
}

if (above) time - t else 0
;

[Sean Mcclintock]

Figured it out. Not sure exactly why but when I changed the R>1 to R<1 it started returning the right value.

[Sean Mcclintock]

Here’s what I have but it I think I must be missing something.

targetLayer =thisComp.layer("Controls").effect("B&W Map")("Layer")
samplePoint =thisComp.layer("tt_footage_2").transform.position
sampleRadius = [1,1];

for (f = timeToFrames(inPoint);
f&lt;= timeToFrames(); f++){
t = framesToTime(f);
sampledColor_8bpc = 255 * targetLayer.sampleImage(samplePoint, sampleRadius,true,t);
R = Math.round(sampledColor_8bpc[0]);

if (R>1 ){ above = true; break;
}
}

f


[Sean Mcclintock]

Thanks Dan. Really appreciate you taking the time to help out people like myself.

[Sean Mcclintock]

Thanks so much Dan!