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-rw-r--r--docs/render-pipeline.md8
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/render-pipeline.md b/docs/render-pipeline.md
index d991a1ce..2fd6045b 100644
--- a/docs/render-pipeline.md
+++ b/docs/render-pipeline.md
@@ -507,7 +507,13 @@ Mirror ghostty 1.3.2 (`zig-pkg/ghostty-*/src/renderer/shadertoy.zig`,
the shell redraws its retained Surface (3.1), never a core tick or render.
- **Existing crt/ripple/glitch** become bundled Shadertoy files in
`shaders/post/` selected by the same builtins (decision 2: kept, polished);
- `scene_effects` and `crt.frag.glsl`/`crt.zig` are deleted. The chain is
+ `scene_effects` and `crt.frag.glsl`/`crt.zig` are deleted. Each bundled pass
+ takes a level, `Crt 0..3` (0 off, `on` the default 2, `off` and bare still
+ work), passed as `pardesLevel`: 2 is the polished rewrite, 3 at least as
+ strong as the old effects (pixels changed by more than 8 in a channel,
+ against a plain frame: Crt 18.3% vs 17.4% old, Ripple 11.1% vs 9.5%, Glitch
+ 9.3% a frame vs 8.1%); a Glitch level raises how often it slips as well as
+ how hard. The chain is
`Crt`, `Ripple`, `Glitch` and `Shader <path>` in the order they were put in
(`Shader off` empties it of files), `ShaderAnimation off|on|always`
(default on). The core keeps no clock for it: level A redraws are the