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Version: 1.6
License: Freeware
Price: FREE
OS: Windows
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Diffuse is very similar to Adobe Photoshop’s own diffuse filter with a key difference – it supports sub-pixel (fractional) diffusion. This key feature takes the diffusion effect to a whole new level and now makes it useful for production where antialiasing effects are necessary.


Adobe Photoshop’s integer-based diffusion algorithm produces harsh aliasing seldom useful for any kind of professional work. By using sub-pixel diffusion, the results are subtle and fully integrated within the image. Applying several iterations of the effects at one time produces even more pleasing results. Sub-pixel diffusion means you can apply diffusion values less that 1.0 pixel.


Richard Rosenman is a digital creative director working in the 3D computer graphics and animation industry. He also develops a collection of professional software tools used throughout the digital art industry.

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