[Chris Dc]

GAH! new snag,
the expression is reading the position value of parented layers as relative to the parent layer, so things are messed up.

again.

so
if i use toWorld ae for some reason puts scale into the equation skewing scaled layer position information,

if i use position[2], parented layers give relative position information of the parent layer,

is there some way to get actual z space info on a layer that is absolute and will not be effected by scale so i can compare it to the camera distance.

this is driving me the crazy.

chris d-_-b

[Chris Dc]

y’know, i’m not sure why i try to make something more complicated than it needs to be.

scraping toWorld and just using position.value[2] works.
still confused exactly why scale effects toWorld though…

btw, thank you to creative cow and this forum. learned alot (i.e. almost everything) from reading these posts.

chris d-_-b

[Chris Dc]

hey again,

i’ve revamped the script to make it more malleable. strange things happen though when i scale an object. it inversely effects the end result of the script, ie. scale up, the effect lessens, scale down the effect increases. here’s the current script.

Q=thisComp.layer(“atmopheric master control”); // Effect control null
startFade = Q.effect(“Start Close Up”)(“Slider”); // Effect begins at this distance from cam
endFade = Q.effect(“End Close Up”)(“Slider”); //Effect ends at this distance from cam

C = thisComp.activeCamera.toWorld([0,0,0]); // Cam position
x = thisComp.activeCamera.position[0]; // Cam x position
y = thisComp.activeCamera.position[1]; // Cam y position
z = anchorPoint[2]; // Object z position
P = toWorld([x,y,z]); // Object relative position on the z-axis from Cam
d = length(C,P); // Distance Calculation
easeOut(d,startFade,endFade,Q.effect(“Color Balance (HLS) Zoom”)(“Saturation”),0) // Actual effect based on startFade & endFade parameters

i base the distance from the object to the cam only on the z axis because i have a bunch of off centered anchor points for animation and it reads the distances further away compared to two objects on the same plane.

…er, yeah.

so why is scale coming into effect here? is it because i’m using toWorld?

thanks
chris d-_-b

[Chris Dc]

PERFECT!

thanks so much. wondering if there’s a list for how effect variables are interpolated somewhere. are all 0 to 255 value ranges actually percentages?

love for expressions rising.