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+title = "bevy_outline_post_process"
+[taxonomies]
+categories = ["bevy plugin"]
+languages = ["rust", "wgsl"]
+[extra]
+github = ["exvacuum/bevy_outline_post_process"]
+crates = ["bevy_outline_post_process"]
++++
+
+this plugin allows you to add outlines to a camera as a post-processing effect in the bevy engine
+
+![0.1 threshold, 2.0 thickness](threshold_10.png)
+
+the effect makes use of a normal prepass to determine surface normals of objects in view, and then uses the differences between those normal values to determine where outlines should occur
+
+the effect is configurable, you can change the thickness of the outlines and the threshold (how significant the difference between normals need to be for an outline to appear)
+
+![0.1 threshold, 1.0 thickness](threshold_10_thin.png)
+![0.1 threshold, 4.0 thickness](threshold_10_thick.png)
+
+there's also an option to enable *adaptive outlines*, so that darker areas get outlined with white and brighter areas are outlined with black
+
+![adaptive](threshold_10_adaptive.png)
+
+i created this effect to improve visual contrast in my [white (I)](@/projects/white_I/index.md) project, which is why i haven't added support for different colors
+
+you're free to add it yourself though, probably wouldn't be too hard