Nebula HDR screensaver
GPU-accelerated HDR nebula fly-through screensaver
新版本 4.12.0
Dust, reflected starlight, and a camera that goes somewhere:
• Dust lanes carve dark channels through the clouds, and dense foreground dust now reaches real opacity, cutting silhouettes out of the star field behind it
• The gas is filamentary instead of billowing — masses gather into streamers and sheets rather than round lumps
• The brightest stars light the gas they sit in, with a blue-white reflection glow that only appears where there is cloud to scatter it
• The camera reads the sky ahead
• Dust lanes carve dark channels through the clouds, and dense foreground dust now reaches real opacity, cutting silhouettes out of the star field behind it
• The gas is filamentary instead of billowing — masses gather into streamers and sheets rather than round lumps
• The brightest stars light the gas they sit in, with a blue-white reflection glow that only appears where there is cloud to scatter it
• The camera reads the sky ahead
A deep-space nebula rendered in real-time volumetric raymarching on the GPU. The camera flies through translucent clouds of emissive gas, sculpted by a tiling 3D noise field with Worley erosion and lit by gradient relief, shell halos, and ionization-front rims.
The palette centres on deep violet and indigo, with magenta and cool-blue accents. Foreground masses occlude background stars with true depth. Dense star clusters glow as pointillistic distant galaxies, and the brightest stars throw subtle aperiodic HDR flares with four-point diffraction spikes.
A split-resolution pipeline keeps stars pin-sharp at native resolution while the gas runs at an adaptive lower resolution. Each screensaver activation randomises the camera path, nebula formation, and star field so no two sessions look alike.
Features:
- Volumetric raymarching through a 3D noise field
- HDR output with automatic SDR fallback
- Configurable render resolution, frame rate, and zoom speed
- Burn-in safe: every element moves or cross-fades, so no pixel holds a static image
- No network access, no ads, no tracking
Optimized for the NVIDIA Shield and HDR displays, but runs on any Android phone or TV with a sufficiently powerful GPU.
The palette centres on deep violet and indigo, with magenta and cool-blue accents. Foreground masses occlude background stars with true depth. Dense star clusters glow as pointillistic distant galaxies, and the brightest stars throw subtle aperiodic HDR flares with four-point diffraction spikes.
A split-resolution pipeline keeps stars pin-sharp at native resolution while the gas runs at an adaptive lower resolution. Each screensaver activation randomises the camera path, nebula formation, and star field so no two sessions look alike.
Features:
- Volumetric raymarching through a 3D noise field
- HDR output with automatic SDR fallback
- Configurable render resolution, frame rate, and zoom speed
- Burn-in safe: every element moves or cross-fades, so no pixel holds a static image
- No network access, no ads, no tracking
Optimized for the NVIDIA Shield and HDR displays, but runs on any Android phone or TV with a sufficiently powerful GPU.
- 作者: Jordan Adema
- 授權條款: GNU General Public License v3.0 only
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- 原始碼
- 建置詮釋資料
- 可重現建置狀態
版本
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此版本需要 Android 5.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
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此版本需要 Android 5.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
-
此版本需要 Android 5.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
新版本 4.11.1
Deeper blacks on standard (non-HDR) displays:
• On SDR screens the faint floor now settles to true black instead of a slightly lifted grey, with a light contrast lift so gas masses separate more cleanly
• HDR output is unchanged
• On SDR screens the faint floor now settles to true black instead of a slightly lifted grey, with a light contrast lift so gas masses separate more cleanly
• HDR output is unchanged
新版本 4.11.0
More nebula, smoother performance:
• Nebulas fill the frame more often instead of drifting to bare starfield, and their faint outer gas reads instead of fading to black
• The bright edge that defines a nebula mass is wider, more textured, and less regularly shaped — mottled gas rather than a thin bright ribbon
• Showpiece galaxies are skipped entirely when none is in view, and the distant star layer stops twinkling — the reclaimed frame time goes into gas resolution
• Finer zoom slider (20% per
• Nebulas fill the frame more often instead of drifting to bare starfield, and their faint outer gas reads instead of fading to black
• The bright edge that defines a nebula mass is wider, more textured, and less regularly shaped — mottled gas rather than a thin bright ribbon
• Showpiece galaxies are skipped entirely when none is in view, and the distant star layer stops twinkling — the reclaimed frame time goes into gas resolution
• Finer zoom slider (20% per