[Matthias Stoll]

Hi everybody,

some time ago I came up with nicer solution. I am not sure where the “formula” for the easing originates (maybe “ease and wizz”). But it is by far the most intuitive and flexible way to do it.

The expression doesn’t care how much dimensions you use and there there is no deciding between easeIn or easeOut.

“ratio” (between 0 and 1) interpolates smoothly where the easing is strongest – 0.5 gets you a symmetric curve.

“strength” defines how steep the curve can get. I recommend using something between 0.8 and 1 because this is where the “formula” shines & drops jaws.

And of course there is “dur”(-ation). 1 Second is a very good start!

start = [0,0];
end = [500,500];
ratio = 0; 
steepness = 1;
dur = 1;
function expoOut (t,steepness){
	if (steepness == 0) return x;
    return (Math.exp(-steepness*t*7) - 1) / (Math.exp(-steepness*7) - 1);
}
function expoIn (t,steepness){
	if (steepness == 0) return t;
    return (Math.exp(steepness*t*7) - 1) / (Math.exp(steepness*7) - 1);
}
function expoInOut(t,ratio,steepness){
		if (t <= ratio){
			func = expoIn(linear(t,0,ratio,0,1),steepness);
			return (func * ratio);
		}
		if (t > ratio){
			func = expoOut(linear(t,ratio,1,0,1),steepness);
			return (func*(1-ratio)+ratio);
		}
}
t = linear(time - inPoint, 0, dur, 0, 1);
exp = expoInOut(t,ratio,steepness);
start + (end - start) * exp;

[Matthias Stoll]

Hi everybody!

I just had a related problem. In my case the controllers became invisible because the geometry “ate” them. I needed to solo them in the “Layers” tab to be able to control them.

There doesn’t seem to be a way to just scale up the controllers (R21). My problem is, that the rig I feeded into mixamo already was scaled to fit the scene proportions. No big deal, but it took me quite some time to figure this out.

[Matthias Stoll]

Edit: This could be used to fix everything super easy with literally 1 Klick on Windows:

app.project.autoFixExpressions(“Menü”, “1”)

In my opinion pigwip + alt (gives you the property index instead of the name) should be the standard! In most cases the name of the property irrelevant. And in my case even dangerous😆

[Matthias Stoll]

<div>Hey that’s great! I will try it! So cool. I was using a script that can replace strings in selected properties. But for this case, that works because “Menü” ist never used in other Expressions.
</div><div>

Sadly I can’t rename the property with a script, that gives me an error. But fixing the Expressions like this already eases the pain!

</div>

[Matthias Stoll]

I added another screenshot because I found the last one unreadable.

[Matthias Stoll]

Hi! For me this script wasn’t very helpful because I needed my Nulls attached to animated Clones. I came across a cleaner approach using an Iteration node in Xpresso.

The iteration node “hierarchy” needs a parent Null as reference object. This parent Null needs to contain as many Nulls as you wish to connect to mograph objects. The last node can refer to any Null of this Null-folder. This setup iterates through all nulls and connects all nulls immediately.

The only downside may be that you have to create the nulls on your own. Fastest way is cmd+c on the first Null then hold cmd+v.

In my case I needed to bring the Nulls over to After Effects. I learned that if you apply the “External Compositing Tag” you can the Nulls in AE directly from the timeline after importing the c4d file. No need to use lights anymore. I also learned that AE refers to the c4d render output settings, not the c4d project settings in regard to the framerate. Of course that is because AE also takes the desired resolution from there.

[Matthias Stoll]

Ok, I found a quick & dirty solution. I just splitted the particles into groups and gave each group a different traveling speed. Looks just fine…

[Matthias Stoll]

I tried that first, while it is a very useful preset it is not designed to attach particles precisely to the spline. Instead the spline attracts them like a magnet. My stream is surrounded by geometry and needs to take a very exact route.

[Matthias Stoll]

If(time <3){AB} else {BA};

[Matthias Stoll]

Sorry the < symbol alway gets messed up..