Conditional blending, also known as “blend if”, is a feature which is currently under development in our master branch. A general description of the idea together with some examples can be found here. In short, conditional blending allows you to limit the effect of a module to certain pixels of an image, determined by their color coordinates. For modules in Lab space, you can restrict the effect of a module depending on the pixel’s L, a, and b value.
![](/2012/07/some-enhancements-to-conditional-blending//IMG_4287x_0004_wide.jpg)
Some enhancements to conditional blending
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upegelow