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Index of NullPlayer's visualization systems. Use this to discover which sub-skill covers the specific visualizer you're working on (main window vis, spectrum window, album art, ProjectM/MilkDrop, Geiss, Tripex, Met Museum, vis_classic, Metal mode internals).
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
SOC 직업 분류 기준
Audio engine architecture, local/streaming pipelines, EQ, spectrum analysis, and playback flow. Use when working on audio playback, streaming, equalization, spectrum visualization, BPM detection, or ProjectM integration.
Flow network throughput window — live download/upload meter, interface selection, single-height center-stack docking, classic/modern window controllers, and rendering behavior.
Coordinate systems, scaling architecture, hit testing, skin sprite rendering, window layout, and Compact Mode for NullPlayer's UI. Use when working on window scaling, skin rendering, coordinate transforms, visual layout, compact/status-item windows, or playlist/marquee text rendering.
ProjectM/MilkDrop preset engine inside the visualization window — preset loading, controls, modes, audio sensitivity, beat sensitivity, drag-suspend behavior. Use when editing the ProjectM wrapper, preset folder logic, or its menu.
Modern skin engine, skin.json schema, element catalog, and custom skin creation. Use when creating or modifying modern skins, working on ModernSkin components, or adding UI elements to the modern system.
The PeppyMeter analog VU meter window — a skinnable needle/bar meter (port of project-owner/PeppyMeter) in classic + modern UI. Covers the meters.txt geometry, the CoreGraphics compositor (needle rotation + linear masks), the stereo-tap level model, meter selection/random, bundled GPL assets, and WindowManager integration. Use when modifying the PeppyMeter window, its renderer, meter templates, or level plumbing.
| name | visualizations |
| description | Index of NullPlayer's visualization systems. Use this to discover which sub-skill covers the specific visualizer you're working on (main window vis, spectrum window, album art, ProjectM/MilkDrop, Geiss, Tripex, Met Museum, vis_classic, Metal mode internals). |
NullPlayer has several visualization stacks. Each has its own skill; this file is a router. Open the relevant sub-skill for details.
The standalone waveform window is not a Metal visualization mode. It reuses audio waveform notifications and the cache service. Do not treat it as part of this stack.
Visualization choices are durable UserDefaults preferences, not AppState session fields. AppState only remembers quit-session state such as window visibility/layout and playlist/audio state.
vis_classic, and browser artwork visualizer settings must remain resettable through VisualizationPreferences.visualization defaults are first-use defaults on app launch. They may seed missing keys, but must not overwrite user-selected mode/style/profile keys during a normal relaunch.VisualizationPreferenceResetScope.| Skill | Scope |
|---|---|
| main-window-visualization | The 76×16 main-window display area: 11 modes, switching, mode-specific settings |
| spectrum-analyzer-window | Dedicated 84-bar spectrum window: docking, geometry, mode list, the cropped analyzer curve, vis_classic waveform demand |
| audio-analysis-window | Friture-style multi-pane Audio Analyzer window: Scope/Levels/Spectrogram/Octave/Pitch/Delay panes, stereo PCM + FFT-magnitudes paths, per-pane consumer gating, AudioAnalysisDSP module |
| peppymeter | Skinnable analog VU meter window (PeppyMeter port): needle/bar meters composited from meters.txt templates, driven by the stereo tap. A CoreGraphics-skinned meter, not a Metal visualization mode |
| gpu-vis-modes | Per-mode internals shared by both windows: Fire, JWST, Lightning, Matrix, Snow, EKG, Classic/Enhanced/Ultra |
| album-art-visualizer | Library Browser ART-mode effects (30 Core Image filters) |
| projectm-milkdrop | ProjectM/MilkDrop preset engine in the visualization window |
| met-museum-visualizer | Met Museum public-domain artwork slideshow engine |
| geiss-port | Geiss engine — port architecture, ABI, configuration |
| tripex-port | Tripex (ben-marsh/tripex) port — D3D9→OpenGL, C ABI |
| vis-classic-guide | vis_classic exact-port analyzer core |
| metal-gotchas | Metal command-encoder pitfalls, render-to-texture y-flip, spectrum jitter |
| Feature | Album Art | ProjectM | Geiss | Tripex | Met Museum | Spectrum Window |
|---|---|---|---|---|---|---|
| Visual Style | Transformed artwork | Procedural shaders | Indexed framebuffer + palette | 3D Winamp-era effects | Public-domain artwork slideshow | Bars / vis_classic / Fire / JWST / Lightning / Matrix / Snow / EKG |
| Effect Count | 30 built-in | 100s of presets | 25 modes | Upstream effect set | N/A | 10 modes |
| Customization | Intensity | Full preset ecosystem | Effect selection | Effect / cycle / intensity | Department / interval / transition / aspect | Mode + decay + style presets |
| GPU Tech | Core Image (Metal) | OpenGL shaders | OpenGL palette LUT | OpenGL geometry | OpenGL textured quad | Metal shaders + compute |
| Audio Response | Spectrum bands | PCM + beats | PCM + 256-bin host spectrum | PCM-driven internal FFT | Optional zoom/pan + beat advance | 75-band spectrum / energy |