This defaults to 100% IIRC. It only effects the *display* during

This is the time when it shouldn't display at 100%.

Let's say I have a bunch of layers with various graphical elements. The one at the bottom is a photo that needs to be scaled up and rotated, so that it fits in better with the layers above it. The moment I attempt that, I am no longer able to see my layers because the photo layer is now displaying above everything. What now? It becomes hit-and-miss guesswork, which is counter intuitive.

On 31/07/2011 17:13, David Gowers (kampu) wrote:

On Mon, Aug 1, 2011 at 12:32 AM, Fred J < <>> wrote:

    This, besides the text tool, is probably one of the most
    unintuitive features in Gimp.

    - Find an image on Google / hard drive.
    - Drop it into your working area.
    - Change it's transparency.
    - Resize / Rotate and, suddenly, the transparency reverts to
    original state.

    This last step makes no sense.  I changed its transparency for a
    reason and it must stay that way until I say so.

And it does stay that way. Currently, we have an opacity control in the transform dialog. This defaults to 100% IIRC. It only effects the *display* during transform. The opacity setting of the layer is unaffected, it's simply not in operation during that time.

(There are various logical problems with using the layer's opacity during transforms... eg, transforming part of a layer -> overlapping parts are inaccurate, and non-overlapping parts may be inaccurate if the layer has no alpha channel. Same applies to transforming a whole layer.. because the original is not, and must not be, hidden during the transform, inheriting the layer opacity causes problems with the accuracy of the display)

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