![]() xcf file)ġ)I observed that changing the image mode(Menu short cut= Image menu -> mode ->indexed) to indexed gives a good quality GIF.But as per this example,I have chosen greyscale.But if anyone wants to preserve all the colors used in an animation,indexed needs to be chosen. png.So for the sake of this example,we will save the final merged layer as. png file and can still be interleaved on top of frames,but i am not sure of how much the final file would be effected as. Now we will have a single final layer that can be interleaved on top of all frames of the animation.Save the file as. Layer blend modes explained here(with previews): In the drop down list,we will have to select jus the one merged layer name and specify blend mode.In this example,I have chosen "screen" option. So to achieve 100% transparency in the circular region as per the image i have shown,ġ)On the final merged layer,we need to add a layer mask as described in the tutorial shown above.For eg: On the layers window(docked on the right side of GIMP screen),right click on it.Select "Add layer mask".From the options that are shown in the following dialog,Choose white(full opacity).In the layers window,beside the final merged layer thumbnail,you will find a full white layer thumbnail(which is just a mask).By default,the mask will be the active selection.For some reason,if you have selected the layer thumbnail,click once on the mask thumbnail to make it active.Ģ)Perform the same elliptical selection as done earlier to make a circular region to fit the animation frames.Fill the foreground color with black as suggested in Layer mask tutorial i linked above.īy now,I hope people have downloaded interleave layer plugin as suggested in previous posts.Simple perform,Image->Interleave layers->Interleave stack of layers. ![]() To achieve 100% transparency,we need to add layer mask. ![]() If we have multiple layers in an image and even if we merged all layers into one layer,transparency of individual layers will still be preserved and simply cutting out the region will not give 100 % transparency in that region.We still can see some non-transparent region in the below image: In the circular area,I have simply used ellipse tool and resized it to fit the circular region.If you only use mouse pointer to find pixel perfect circumference,it can be hard.So initially to make an approximate region,use mouse.Then when getting closer to circumference,without clicking or dragging,hover mouse pointer to edges of circular region within the ellipse region and we can find a box shaped highlighted region indicating that particular region can be moved pixel by pixel using arrow keys.That way,you can ensure pixel perfect circular selection. Sorry for the late reply.I will explain how i got this result:įirst i prepared the static layer which looks like below:
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