vade

Im trying to find a good way of removing the linear look to 

Id like to be able to do something like in After Effects and add an 

Ease In to the beginning of my bline and an Ease out (usually called 

Im having a long/shitty week, anyone want to give me a hand?

Id like to start on the numbers i provide, and end on the numbers I 

provide, just, not be so er.. *computer-ish* with those in between, 

Im trying to find a good way of removing the linear look to  
animations in GL that are using bline.

Id like to be able to do something like in After Effects and add an  
Ease In to the beginning of my bline and an Ease out (usually called  
Easy-ease) to the end.

Id like to start on the numbers i provide, and end on the numbers I  
provide, just, not be so er.. *computer-ish* with those in between,  
make it a bit more natural.

easiest-way-of-adding-ease-in-ease-out-to-camera-animations-in-gl

I'm not sure if this helps, but I received it from Trond Lossius a

and here's one that I built, but never used - I forget why:

I'm not sure if this helps, but I received it from Trond Lossius a
while back and found it useful:

> Im trying to find a good way of removing the linear look to 

> Id like to be able to do something like in After Effects and add an 

> Ease In to the beginning of my bline and an Ease out (usually 

> Im having a long/shitty week, anyone want to give me a hand?

> Id like to start on the numbers i provide, and end on the numbers I 

> provide, just, not be so er.. *computer-ish* with those in between, 

Hope your week gets better. Here is my list_ease abstraction. In 

general a common ease fn is 2x^3 - 3x^2 on [0, 1]. Nice because it's 

super easy to compute, and has derivatives of 0 at both ends. If you 

wanted to make your fades even less "computer-ish" you could add in 

some filtered noise scaled by the ease fn along the way.

> Hello
>
> Im trying to find a good way of removing the linear look to  
> animations in GL that are using bline.
>
> Id like to be able to do something like in After Effects and add an  
> Ease In to the beginning of my bline and an Ease out (usually  
> called Easy-ease) to the end.
>
> Im having a long/shitty week, anyone want to give me a hand?
>
> Id like to start on the numbers i provide, and end on the numbers I  
> provide, just, not be so er.. *computer-ish* with those in between,  
> make it a bit more natural.

Hope your week gets better.  Here is my list_ease abstraction.  In  
general a common ease fn is 2x^3 - 3x^2 on [0, 1].  Nice because it's  
super easy to compute, and has derivatives of 0 at both ends.  If you  
wanted to make your fades even less "computer-ish" you could add in  
some filtered noise scaled by the ease fn along the way.

> I'm not sure if this helps, but I received it from Trond Lossius a

bart woodstrup skrev:
> Hi vade,
>
> I'm not sure if this helps, but I received it from Trond Lossius a
> while back and found it useful:
>
> #P...
oh wow, this is über-useful!

Sorry, I meant - Randy -, Can you tell its been a long week? (sigh) 

Sorry, I meant - Randy -,  Can you tell its been a long week? (sigh)  
Thanks again.

You're welcome, I'm still working my ways through the solution to edge 

blending you posted the other day, so it's nice to be able to provide 

I have another patch that might interest you as well. It's an 

alternative line-approach. Similar to bline in that it updates whenever 

banged, but similar to line in that ramping from a to b happens in a 

The idea have been to have ramps happening in a fixed amount of time, 

but providing as "fresh" values as possible along the way to jitter 

hopefully giving as smooth transitions as possible, while maintaining 

control over the perceived time that a transition takes, so that not 

everything takes twice as long on a slower computer.

I'm eventually panning n implementing all of this as ramp modes in 

Jamoma, but haven't gotten around to it yet.

> Thank you Rnady and Bart (and Trond) very much. This has been 

> illuminating. Randy, the ease function is perfect for what I need and I 

> can easily adapt that to bline with a JS.

> ill hopefully post something back to you all shortly.

> Thanks for making my day less shitty :)

You're welcome, I'm still working my ways through the solution to edge 
blending you posted the other day, so it's nice to be able to provide 
something back.

I have another patch that might interest you as well. It's an 
alternative line-approach. Similar to bline in that it updates whenever 
banged, but similar to line in that ramping from a to b happens in a 
fixed amount of time.

The idea have been to have ramps happening in a fixed amount of time, 
but providing as "fresh" values as possible along the way to jitter 
hopefully giving as smooth transitions as possible, while maintaining 
control over the perceived time that a transition takes, so that not 
everything takes twice as long on a slower computer.

I'm eventually panning n implementing all of this as ramp modes in 
Jamoma, but haven't gotten around to it yet.

vade wrote:
> Thank you Rnady and Bart (and Trond)  very much. This has been 
> illuminating. Randy, the ease function is perfect for what I need and I 
> can easily adapt that to bline with a JS.
>
> ill hopefully post something back to you all shortly.
>
> Thanks for making my day less shitty :)


Here is a js + helpfile for a bline helper that creates 'n' ease in 

and ease out steps for bline automatically for you.

I think this is actually really helpful, and easy to drop in place 

between a current message and bline. This will be included in my next 

v001 release, but er, let me know what you folks think. Thanks again 

// attempt to take a simple bline message like 0, 10 5000 (go from 0 

to 10 in 5000 bangs) and make it into a nice interpolated event.

outlets = 0; // one outlet that goes to bline

// typically we send messages such as 0. , 10 5000, which is actually 

// we handle the first message by simply passing it through.

// the second message is where we do our easing.

        initial_value = arguments[0];

        outlet(0, arguments[0]); // just pass it through        

        // build an array that has 'ease' number of elements in it * 2 (one 

        var output_to_bline_array = new Array(ease * 2);

        dest_value = arguments[0];

        increment_bangs = arguments[1]/ease;

        var output_to_bline = "";        

        // our ease functon is 2x^3 - 3x^2 - we approximate a smooth curve 

by iterating n times. ease is the number of times we iterate.

            // x ranges from 0 - 1.

             // this applies our ease function    

            temp = ( (Math.pow( (x) , 3.0)* 2.0 ) - (Math.pow( (x) , 2.0) * 

            // unscale from 0 1 to our original size

            scaled_temp = scale(0, 1, initial_value, dest_value, temp);

            output_to_bline_array[(i - 1) * 2 ] = scaled_temp;

            output_to_bline_array[(i - 1) * 2 +1 ] = increment_bangs;

            //output_to_bline += scaled_temp+ " "; // unscaled

            //output_to_bline += increment_bangs + " ";

            //outlet(0, scaled_temp, increment_bangs);

        //post("ease size is "+ ease, "output_size is " + 

        outlet(0, output_to_bline_array);

    return (x -a) * (d -c)/(b -a) + c;

// how many iterations do we want to make ?

Here is a js + helpfile for a bline helper that creates 'n' ease in  
and ease out steps for bline automatically for you.

I think this is actually really helpful, and easy to drop in place  
between a current message and bline. This will be included in my next  
v001 release, but er, let me know what you folks think. Thanks again  
folks for the help.

// attempt to take a simple bline message like 0, 10 5000 (go from 0  
to 10 in 5000 bangs) and make it into a nice interpolated event.

outlets = 0; // one outlet that goes to bline
var ease = 10; // 'interpolation steps

var initial_value = 0;
var dest_value = 100;

// typically we send messages such as 0. , 10 5000, which is actually  
two messages to this js.
// we handle the first message by simply passing it through.
// the second message is where we do our easing.

function list(a)
{
	if(arguments.length ==1)
	{
		initial_value = arguments[0];

		outlet(0, arguments[0]); // just pass it through		
	}

	else if(arguments.length == 2)
	{
		// build an array that has 'ease' number of elements in it * 2 (one  
for destination one for num of bangs).
		var output_to_bline_array =   new Array(ease * 2);

		// our ease functon is 2x^3 - 3x^2 - we approximate a smooth curve  
by iterating n times. ease is the number of times we iterate.
		for(i=1; i
		{
			// x ranges from 0 - 1.
			x = i/ease;

			 // this applies our ease function	
			temp = ( (Math.pow( (x) , 3.0)* 2.0 ) - (Math.pow(  (x) , 2.0) *  
3.0)  ) * -1;

			// unscale from 0 1 to our original size
			scaled_temp = scale(0, 1, initial_value, dest_value, temp);

			output_to_bline_array[(i - 1) * 2 ] = scaled_temp;
			output_to_bline_array[(i - 1) * 2 +1 ] = increment_bangs;
			//output_to_bline +=  scaled_temp+ " "; // unscaled
			//output_to_bline += increment_bangs + " ";
			//outlet(0, scaled_temp, increment_bangs);
		}
		//post("ease size is "+ ease, "output_size is " +  
output_to_bline_array.length);
		outlet(0, output_to_bline_array);

// scaling function. like zmap n shit
function  scale(a, b, c, d, x)
{
	return (x -a) * (d -c)/(b -a) + c;
}

// how many iterations do we want to make ?
function setease(x)
{
	ease = x;
}


this looks all very interesting...but I can't get the js to work - methinks it's a problem w/ line breaks. can you post as attachment(s)?

this looks all very interesting...but I can't get the js to work - methinks it's a problem w/ line breaks.  can you post as attachment(s)?


I "fixed" it after it came through my email. Let me know if there are

> this looks all very interesting...but I can't get the js to work - methinks it's a problem w/ line breaks. can you post as attachment(s)?

> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice

> Shake with ice and serve in a Pernod-rinsed cocktail glass

I "fixed" it after it came through my email.  Let me know if there are
any problems.

On 8/13/07, pnyboer  wrote:
>
> this looks all very interesting...but I can't get the js to work - methinks it's a problem w/ line breaks.  can you post as attachment(s)?
>
>
> --
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> The Lifespan
> 2 oz brandy
> 1/2 oz orgeat
> 1/2 oz maraschino
> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice
> Shake with ice and serve in a Pernod-rinsed cocktail glass
>

I posted a version up on my blog with a help file:

http://abstrakt.vade.info/ILOVETHEMAXLIST/v001.easyease.zip

On Aug 13, 2007, at 6:39 PM, keith manlove wrote:

> I "fixed" it after it came through my email. Let me know if there are

>> this looks all very interesting...but I can't get the js to work - 

>> methinks it's a problem w/ line breaks. can you post as attachment 

>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice

>> Shake with ice and serve in a Pernod-rinsed cocktail glass

> I "fixed" it after it came through my email.  Let me know if there are
> any problems.
>
> Thanks,
> Keith
>
> On 8/13/07, pnyboer  wrote:
>>
>> this looks all very interesting...but I can't get the js to work -  
>> methinks it's a problem w/ line breaks.  can you post as attachment 
>> (s)?
>>
>>
>> --
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> The Lifespan
>> 2 oz brandy
>> 1/2 oz orgeat
>> 1/2 oz maraschino
>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice
>> Shake with ice and serve in a Pernod-rinsed cocktail glass
>>
>>

Just wondered if you could could spare 5 minutes for a quick chat 

> I posted a version up on my blog with a help file:

> On Aug 13, 2007, at 6:39 PM, keith manlove wrote:

>> I "fixed" it after it came through my email. Let me know if there 

>>> this looks all very interesting...but I can't get the js to work 

>>> - methinks it's a problem w/ line breaks. can you post as 

>>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice

>>> Shake with ice and serve in a Pernod-rinsed cocktail glass

Just wondered if you could could spare 5 minutes for a quick chat  
about a couple of things.

Jack
On 14 Aug 2007, at 03:24, vade wrote:

> I posted a version up on my blog with a help file:
>
> http://abstrakt.vade.info/ILOVETHEMAXLIST/v001.easyease.zip
>
> On Aug 13, 2007, at 6:39 PM, keith manlove wrote:
>
>> I "fixed" it after it came through my email.  Let me know if there  
>> are
>> any problems.
>>
>> Thanks,
>> Keith
>>
>> On 8/13/07, pnyboer  wrote:
>>>
>>> this looks all very interesting...but I can't get the js to work  
>>> - methinks it's a problem w/ line breaks.  can you post as  
>>> attachment(s)?
>>>
>>>
>>> --
>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> The Lifespan
>>> 2 oz brandy
>>> 1/2 oz orgeat
>>> 1/2 oz maraschino
>>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice
>>> Shake with ice and serve in a Pernod-rinsed cocktail glass
>>>
>>>
>
> v a d e //
>
> www.vade.info
> abstrakt.vade.info
>
>
>


OOPS, Please ignore me hitting reply instead of new,

On 14 Aug 2007, at 10:49, jack keenan wrote:

> Just wondered if you could could spare 5 minutes for a quick chat 

>> I posted a version up on my blog with a help file:

>> On Aug 13, 2007, at 6:39 PM, keith manlove wrote:

>>> I "fixed" it after it came through my email. Let me know if 

>>>> this looks all very interesting...but I can't get the js to work 

>>>> - methinks it's a problem w/ line breaks. can you post as 

>>>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice

>>>> Shake with ice and serve in a Pernod-rinsed cocktail glass

JK
On 14 Aug 2007, at 10:49, jack keenan wrote:

> Hi Lindsay,
>
> Just wondered if you could could spare 5 minutes for a quick chat  
> about a couple of things.
>
> Cheers
>
> Jack
> On 14 Aug 2007, at 03:24, vade wrote:
>
>> I posted a version up on my blog with a help file:
>>
>> http://abstrakt.vade.info/ILOVETHEMAXLIST/v001.easyease.zip
>>
>> On Aug 13, 2007, at 6:39 PM, keith manlove wrote:
>>
>>> I "fixed" it after it came through my email.  Let me know if  
>>> there are
>>> any problems.
>>>
>>> Thanks,
>>> Keith
>>>
>>> On 8/13/07, pnyboer  wrote:
>>>>
>>>> this looks all very interesting...but I can't get the js to work  
>>>> - methinks it's a problem w/ line breaks.  can you post as  
>>>> attachment(s)?
>>>>
>>>>
>>>> --
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> The Lifespan
>>>> 2 oz brandy
>>>> 1/2 oz orgeat
>>>> 1/2 oz maraschino
>>>> 3/4 oz mix of (meyer) lemon and (yellow) grapefruit juice
>>>> Shake with ice and serve in a Pernod-rinsed cocktail glass
>>>>
>>>>
>>
>> v a d e //
>>
>> www.vade.info
>> abstrakt.vade.info
>>
>>
>>
>


Easiest way of adding 'Ease in Ease Out' to camera animations in GL