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Diffstat (limited to 'docs/macos.md')
| -rw-r--r-- | docs/macos.md | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/docs/macos.md b/docs/macos.md index e104d3a6..5166e2d5 100644 --- a/docs/macos.md +++ b/docs/macos.md @@ -102,8 +102,8 @@ asking for a thin insert caret instead of a block. `Surface.images` crosses separately as `pardes_frame_images` / `pardes_frame_image_list` — see "Pixel attachments" below. -`pardes_scene` is the matching full-window snapshot: a bit each for CRT, -ripple, and glitch, plus the 60 Hz time/frame that animates them. It is returned +`pardes_scene` is the matching full-window snapshot: a bit for CRT, plus the +60 Hz time/frame that animates it. It is returned by value, so the renderer never holds a pointer into live core state. A zero flags word is also the fast-path contract: draw the CoreText frame directly. @@ -662,8 +662,7 @@ longer leaves a dark titlebar over a cream grid. ## Scene effects -`Crt`, `Ripple`, and `Glitch` are three switches over one postprocess, not three -stacked filters. Their canonical macOS source is `shaders/crt.ci.metal`, which +`Crt` is one full-window postprocess. Its canonical macOS source is `shaders/crt.ci.metal`, which the build installs as `pardes.app/Contents/Resources/crt.ci.metal`. The Swift shell loads that exact asset with `CIKernel.kernels(withMetalString:)` and runs it through a `CIContext` created from the system Metal device. The source is @@ -673,14 +672,12 @@ The ordinary CoreText/attachment/cursor pass is one function. With any scene bit or panel track it targets a retained, backing-scale bitmap; kernels then sample the complete frame into the flipped view. PDFs, image panes, taglines, rules, and the caret therefore receive the same effect. With every bit off and -no panel track the bitmap and Core Image context are bypassed entirely. Ripple -and glitch alter sample coordinates only, preserving theme colors; CRT works +no panel track the bitmap and Core Image context are bypassed entirely. CRT works in linear light with restrained bloom, scan/mask, vignette, hum, and noise instead of applying a broad color remap. The scene kernel alone receives a `clampedToExtent` image and the final output -is cropped back to the original finite extent. Coordinate tears and chroma -samples therefore clamp to the edge exactly like SDL's scene sampler instead +is cropped back to the original finite extent. Chroma samples therefore clamp to the edge exactly like SDL's scene sampler instead of acquiring transparent-black seams from Core Image's finite source image. The Zig side owns the clock. `pardes_animation_tick` increments its wrapped @@ -689,8 +686,8 @@ from that integer. Input bursts cannot accelerate the shader. Pointer input follows the same destination-to-source transform as the last presented scene frame before it is divided by the cell metrics. The view keeps -that exact `pardes_scene_s` snapshot and mirrors the Metal barrel, ripple and -glitch sampling arithmetic in `ScenePostprocessor.sourcePoint`; pixels outside +that exact `pardes_scene_s` snapshot and mirrors the Metal barrel arithmetic +in `ScenePostprocessor.sourcePoint`; pixels outside the CRT tube have no cell. The resulting displayed-grid cell then reaches the core, whose panel-track mapping resolves it to canonical pane content. @@ -716,8 +713,8 @@ while `pardesComposedInCore` effects only clip the already-composed core cells; pixel attachments have no character value and pass through unchanged. Because the input is the finished bitmap rather than a glyph-only batch, backgrounds, glyphs, taglines, rules, the caret, PDF pages, and image -panes move and dissolve together. Scene CRT/ripple/glitch runs once after the -panel composition. +panes move and dissolve together. The scene CRT runs once after the panel +composition. With no scene bit and no panel track the retained bitmap, Core Image context, and Metal passes are bypassed. `EffectCode Panel*` links to this Metal |