How to "ease-in/ease-out acceleration" for surface Blend and Morph?

Hello GH Community,
in software like Revision ReFlex, Elastic Reality or Adobe Illustrator etc. you can apply "acceleration" or "ease-in\out" curves to their warps, morphs and blends(AI), to position tween progress closer to beginning or end of blend or morph. I'm hoping there's a component of procedure for doing the same to surface Blending in GH.

1) please let me know if familiar with a way to "accelerate" surface blends in GH, any help or suggestions much appreciated,

Thanks much,
Jeff

Replies to This Discussion

Permalink Reply by Javier Vizoso on March 2, 2015 at 4:47pm

Its quite simple actually, you just need to pass the tween value through the graph mapper (where you apply the bezier of choice). I've attached an example.

Attachments:

tween.gh, 10 KB

Permalink Reply by Jeff C on March 2, 2015 at 5:16pm

Thanks Javier,
for your quick reply and def. i look forward to trying, as well as instructive example page.
Graph Mapper makes absolute sense so no doubt it will work, David also recommends same.
Jeff

Permalink Reply by David Rutten on March 2, 2015 at 4:49pm

There's no component for interpolating different values using a wide variety of tweens. However you can use the Graph Mapper to mimic tweening using custom curves, or you can use an expression to adjust interpolation values. I find these two sites useful when looking at tweening equations:

http://upshots.org/actionscript/jsas-understanding-easing

http://wpf-animation.googlecode.com/svn/trunk/src/WPF/Animation/Pen...

Permalink Reply by Javier Vizoso on March 2, 2015 at 4:51pm

There's also this one I use all the time: http://sole.github.io/tween.js/examples/03_graphs.html .

Permalink Reply by Jeff C on March 2, 2015 at 5:28pm

Hi David,
really appreciate your instructions and will study expressions and tweening equations at both sites.
Thanks again,
Jeff

Permalink Reply by taz on March 2, 2015 at 6:21pm