there is a simple workaround. Just hide the layer and then transform it.
Even for a hidden layer you have the preview during transformation.
2014-02-11 23:39 GMT+01:00 Kalle Söderman <kalle.soder...@gmail.com>:
> Long time Gimp user with unresolved problem here. One of the many task I
> use Gimp for is collaging images of spaces and buildings for work. We
> have Photoshop licences but I find some of the Gimp workflow better.
> I frequently need to correct perspective (or scale for that matter) to
> match a feature of the underlaying layers. The problem is that a not
> transformed copy of the object stays in place behind the transform
> obscuring the underlaying image and preventing accurate transform.
> Is there a setting or alternative workflow to achieve what I'm looking
> for? I created a series of images <http://imgur.com/a/O9PvX> showing the
> problem. Unfortunately my simple example usecase can be helped by using
> the grid but there are similar circumstances when the reference detail
> is more or less completely hidden by the pre-transform copy of the
> layer/selection. What you can see however is that the outline of the red
> rectangle is lost in the background copy.
> Anyone else who'd also be very happy for a way of hiding transform
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