evtonic3 Posted July 25, 2020 Share Posted July 25, 2020 Is the filter Perlin noise a repeated image or is it random? Quote Link to comment Share on other sites More sharing options...
John Rostron Posted July 25, 2020 Share Posted July 25, 2020 It is not tiled. However, you could create a tileable version as follows: Create two blank layers. Add a Perlin.noise filter to each.. Apply the Affine Filter (Filters > Distort > Affine) to the top layer with displacement of 50% for X and Y. With this same layer, use a soft brush to erase the horizontal and vertical hard-meeting area. Erase up to, but not reaching the edges. You can use a broad brush near the centre and a narrow one near the edge. Because of the Affine filter, the top layer will tile. Choose a suitable blend mode to give the effect you prefer. Normal may be OK. Merge the two layers. It should work because of the randomness of the Perlin effect. John Alfred and evtonic3 2 Quote Windows 10, Affinity Photo 1.10.5 Designer 1.10.5 and Publisher 1.10.5 (mainly Photo), now ex-Adobe CC CPU: AMD A6-3670. RAM: 16 GB DDR3 @ 666MHz, Graphics: 2047MB NVIDIA GeForce GT 630 Link to comment Share on other sites More sharing options...
John Rostron Posted July 27, 2020 Share Posted July 27, 2020 Here is a worked example of the procedure described above: 1. Create two blank layers. 2. Add a Perlin.noise filter to each. (I actually created one layer, added Perlin Noise, then duplicated that layer.) 3. Apply the Affine Filter (Filters > Distort > Affine) to the top layer with displacement of 50% for X and Y. 4. With this same layer, use a soft brush to erase the horizontal and vertical hard-meeting area. Erase up to, but not reaching the edges. You can use a broad brush near the centre and a narrow one near the edge. Because of the Affine filter, the top layer will tile. (Note that I set the visibility of the bottom layer here to zero to make the erasure clear.) 5. Choose a suitable blend mode to give the effect you prefer. Normal may be OK. (I used Normal here, after setting the visibility of the lower layer to 100%.) 6. Merge the two layers. It should work because of the randomness of the Perlin effect. To test this, I applied another Affine filter with displacements of 70% and 30%. This brings the edges to the body of the tile. As you can see there is no obvious tiling. John Alfred, thedivclass and firstdefence 2 1 Quote Windows 10, Affinity Photo 1.10.5 Designer 1.10.5 and Publisher 1.10.5 (mainly Photo), now ex-Adobe CC CPU: AMD A6-3670. RAM: 16 GB DDR3 @ 666MHz, Graphics: 2047MB NVIDIA GeForce GT 630 Link to comment Share on other sites More sharing options...
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