2d transform/scale around set center?

[kirkr5689]

How can I do a something like 2d transform  which would allow to scale  something  around a center of transform?  Not just left or right?

And do it not 0,5 or 1,5  but rather exactly  to 55 x 1500 pixels for example ?

Does anyone ever tried to make  such a node?

I hate 2d transform , It's so  monstrously inconvenient and blurry . Any image editor starting dfrom Photoshop have this feature for decades.   

Is there any way to make your own transform gizmo  that would have those features?

[davescm]

You could use the pixel processor and feed it inputs for rotation and rotation centre.

In the pixel processor function below I've just used 0 to 1 for rotation and 0,0 to 1,1 for centre position (0,0 is top left). You could add a little more math to calculate the centre as a pixel based position based on $size.

Make sure you set the Sample Gray node in the pixel processor to to bilinear filtering mode

Dave

[kirkr5689]

Thanks for the reply. But I meant  scale, not rotation.  Can I scale an image off a defined center somehow?

[davescm · Accepted solution]

Oops - sorry, I misread your post.

Why not have two for the price of one 🙂

This one should both rotate and scale around a chosen point

Pixel processor function :

Dave

[kirkr5689]

Thank you very much, Dave