Ho to blur the image, with as much less effort as possible, so the blur wraps around the edges
I want to blur HDRI maps
2
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Do you want to get a dark halo effect as on HDRI images? – slawek Apr 16 '14 at 22:59
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Do you have any examples you can show us of what you are trying to achieve? – Yisela Apr 16 '14 at 23:05
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The effect you are looking for might be called "vignette". Search for that and see if it helps. If not, show us some screenshots of what you want to achieve. – benteh Apr 17 '14 at 0:11
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1I think this is about a blurring operation, when applied to pixels on e.g. the left-hand edge of the canvas, having an effect on the pixels on the right hand edge of the canvas. HDRI maps would normally be wrapped into a sphere or hemisphere, so this might be required to prevent causing a visible 'seam'. – e100 Apr 17 '14 at 16:32
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- Duplicate your original image into a new layer.
- Add guides to edges of original image.
- Enlarge your canvas by 200%.
- Duplicate the image to all eight neighboring sides to make seamless tiling.
- Apply blur of choice.
- Crop your canvas down to original size.
- You now have wrapping blur with no hard edges!
