I see this pattern around for a while now and I don't know what Its name and if there any tips how I can do it using a filter or something?
- It is not a Photoshop native filter, there are two solutions, or do it yourself, better in a vector application or use an Online Mosaic Maker Tool and download the result.
The mosaic filter in Photoshop can be a very useful pixelation effect, but it's restricted to turning an image into a set of squares.
This little app lets you use triangles, hexagons, bricks, cubes and other shapes, as well as adjusting size, rotation and more.
- About the name is Tessellation, in this case Triangle Tessellation.
A tessellation of a flat surface is the tiling of a plane using one or more geometric shapes, called tiles, with no overlaps and no gaps.