# Krita with clipping (test build) **URL:** \ **Category:** Artists Feedback & Testing\ **Created:** [June 13, 2023, 1:48pm UTC](https://krita-artists.org/t/krita-with-clipping-test-build/68119 "2023-06-13T13:48:08Z")\ **Posts on this page:** 1\ **Showing post:** 65
**Author:** ![TheTwo](https://krita-artists.org/user_avatar/krita-artists.org/thetwo/32/32836_2.png) [@TheTwo](https://krita-artists.org/u/TheTwo)\ **Post date:** [September 8, 2025, 12:37pm UTC](https://krita-artists.org/t/krita-with-clipping-test-build/68119/65 "2025-09-08T12:37:25Z")
hi， If you want to simulate the brush blur effect of CSP, you can refer to these two posts: > [@New smudge algorithm（sai/csp like）（Decoupling color and alpha）](https://krita-artists.org/t/new-smudge-algorithm-sai-csp-like-decoupling-color-and-alpha/132491): > > @urzeye （killy） has developed a new color mixing algorithm, which he originally posted [in this post](https://krita-artists.org/t/color-smudge-opacity-vs-flow/46680/21).（At that time, it was different from the theme of that post, so it was ignored…）Killy compiled an executable software, but he is busy with work, so I am sending this post. Watch the videos: [[Parameter examples] ](https://www.youtube.com/watch?v=HQBrJDFfM9I)[[killy‘s smudge for krita] ](https://www.youtube.com/watch?v=fRlQe5QeOdI) Download key source code and executable files: Attention: The previous smudging brush cannot be used as it may cause errors. It co… > [@Gaussian Blur / Blur Engine](https://krita-artists.org/t/gaussian-blur-blur-engine/103368/45): > > In recent experiments, it was found that the “color running” of CSP is basically Krita’s “smearing” (except that it will blend with the canvas color, even if color blending is not turned on) For the “intensity of blur” option in “color running”, it will only blur the first dab. This is very different from the blurry MR on the right. Therefore, there is no significant performance consumption --- _[View the full topic](https://krita-artists.org/t/krita-with-clipping-test-build/68119)._