aenhancers

Dan Ebberts

toWorld() does one specific thing, and that is to convert coordinates from a layer's layer space (where the upper left corner is [0,0,0]) to world space. So the only thing you would want to feed toWorld() would be coordinates represented in layer space. This is why you always see anchorPoint used in...

Dan Ebberts

I think scaling should only affect the results if it causes the Anchor Point to move. What are seeing exactly?

Math.abs() just takes the absolute value and gives you a posative number, like length() does.

Dan

Dan Ebberts

It doesn't look like you posted the entire expression, but give this a try:

Code: Select all

d = Math.abs(thisComp.activeCamera.toWorld([0,0,0])[2] - toWorld(anchorPoint)[2]);
easeOut(d,startFade,endFade,Q.effect("Levels (Individual Controls)")("Output Black"),0)

Dan

Dan Ebberts

This should launch at the first layer marker: vel = 300; //velocity - pixels per second angle = -45; // launch angle - degrees g = 300; // gravitational constant if (marker.numKeys > 0 && marker.key(1).time < time){ t = time - marker.key(1).time; theta = degreesToRadians(angle); x = vel*Math...

Dan Ebberts

It seems like you should be able to do this. Assuming your text is an AE text layer, you should be able to add an opacity selector, duplicate the layer once for each character, and set the range selector parameters to make only that character visible. Might be quicker to do it by hand unless you hav...

Dan Ebberts

An autoOrient layer attribute has been added for CS3 and does appear to work for cameras.

Dan

Dan Ebberts

Sure, like this:

freq = 1.0; //oscillations per second
amplitude = 50;
decay = 0.7;
timeToStart = 5; // start time (seconds)

t = Math.max( time - timeToStart,0);
amplitude*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t)

Dan

Dan Ebberts

I think you just have an extra right paren in there:

exp = "thisComp.layer(2).sampleImage(transform.position, [2, 1.5], false, time);";

Dan

Dan Ebberts

What a fun project. I think it would have to be an AE CS3 script that would construct the appropriate sampleImage() expression and harvest the results to decide which image to place at each location in the grid for each frame. It would probably take a long time to run, but it would be very cool.

Dan

Dan Ebberts

I cooked this up specifically for Paint effect strokes. I don't think it will work with stroked paths.

Dan

Dan Ebberts

You would get that result if you pasted the expression into the layer's rotation property rather than the brush's. Is that possibly what happened?

Dan

Dan Ebberts

This generates a 128x12 random binary block that seems to render quite a bit faster than other methods:

Code: Select all

s = "";
for (j = 1; j <= 12; j++){
  for (i = 1; i <= 4; i++) s += (4294967296 + Math.floor(random(4294967296))).toString(2).substr(1);
  s += "\r";
}

Dan

Dan Ebberts

That method is kind of a last resort, but sometimes you have to do it. It should do what you need.

Dan

Dan Ebberts

This uses time, but play around with it and see if it does what you want:

stepTime = 2;
opacityIncrement = 20;
currentStep = Math.floor(time / stepTime);
value - currentStep*opacityIncrement

Dan

Dan Ebberts

I would guess not, since you set those in a dialog.

Dan

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