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The fascinating world of Voronoi diagrams


Alfred

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For those who are intrigued by the Voronoi filter in Affinity Photo and would like some background information, I thought I should share the following link to an article about Voronoi diagrams:

A brief introduction about [sic] this ubiquitous pattern and its applications

Alfred spacer.png
Affinity Designer/Photo/Publisher 2 for Windows • Windows 10 Home/Pro
Affinity Designer/Photo/Publisher 2 for iPad • iPadOS 17.5.1 (iPad 7th gen)

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8 minutes ago, bijutoha said:

Have you experimented with different colour palettes or blending modes to achieve unique results?

No, I haven’t. Have you?

Thanks for the suggestion!

Alfred spacer.png
Affinity Designer/Photo/Publisher 2 for Windows • Windows 10 Home/Pro
Affinity Designer/Photo/Publisher 2 for iPad • iPadOS 17.5.1 (iPad 7th gen)

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12 minutes ago, William Overington said:

Is this in Version 1 of Affinity Photo, and if so, where please?

 

Try the Help, searching for Voronoi

https://affinity.help/photo/en-US.lproj/pages/Filters/filter_voronoi.html

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.5, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.5

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The Help feature link to a page, but I cannot find it.

Is it under a different name or in a cascading menu somewhere please?

I have not used Affinity Photo apart from a quick look once or twice, so I may have missed something basic.

I saw Alfred's post and thought I would have a try.

William

 

Until December 2022, using a Lenovo laptop running Windows 10 in England. From January 2023, using an HP laptop running Windows 11 in England.

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17 minutes ago, William Overington said:

The Help feature link to a page, but I cannot find it.

It tells you it's a Filter, and if you read further on the Help page you'll find a See Also that describes applying filters.

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.5, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.5

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The voronoi filter is based on internal functions, available as procedural texture filter and offering even more options to influence the result.

Voronoi Noise    
cellnoise cellnoise(S x, S y)
cellnoise(S x, S y, S spread)
 
cellnoise2 cellnoise2(S x, S y, I degree)  
cellnoisedist cellnoisedist(S x, S y)
cellnoisedist(S x, S y, S spread)
 
cellnoiseedge cellnoiseedge(S x, S y, S sz, S softness)

https://affinity.help/photo2/en-US.lproj/pages/Filters/filter_proceduraltexture.html

Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

 

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