mirror of
https://github.com/vondas-network/videobeaux.git
synced 2026-01-27 09:11:09 +01:00
68 lines
2.7 KiB
Markdown
68 lines
2.7 KiB
Markdown
# slight_smear
|
|
|
|
## Description
|
|
Applies a subtle RGB smear effect, gently shifting and bleeding color channels to create a soft distortion.
|
|
The look resembles mild chromatic drift, analog smudge, or a barely-there color echo — perfect for adding texture without overwhelming the original image.
|
|
|
|
## Purpose
|
|
`slight_smear` is designed for creators who want:
|
|
- gentle color separation without strong glitch artifacts,
|
|
- soft smearing suitable for dreamy or nostalgic aesthetics,
|
|
- analog-feeling color drift reminiscent of old CRT or lens aberration,
|
|
- a lightweight effect that enhances motion without heavy distortion,
|
|
- a minimal, no-argument filter that always behaves consistently.
|
|
|
|
## How It Works
|
|
1. **RGB Channel Offset**
|
|
Red, green, and blue channels are shifted by micro-amounts, producing a soft separation.
|
|
2. **Low-Intensity Smear**
|
|
Instead of fully duplicating edges, the smear gently blooms color outward.
|
|
3. **Motion Enhancement**
|
|
Moving subjects gain soft trails, giving the impression of mild persistence.
|
|
4. **Encoding**
|
|
The final output is encoded using global Videobeaux CRF, codec, and pixel format.
|
|
|
|
## Program Template
|
|
```bash
|
|
videobeaux -P slight_smear \
|
|
-i input.mp4 \
|
|
-o output.mp4
|
|
```
|
|
|
|
## Arguments
|
|
- *(No additional program-specific arguments; uses global videobeaux options only.)*
|
|
|
|
## Real World Example
|
|
```bash
|
|
videobeaux -P slight_smear \
|
|
-i myvideo.mp4 \
|
|
-o slight_smear_styled.mp4
|
|
```
|
|
|
|
## Program Output
|
|
<video controls preload="metadata" style="max-width:100%; border-radius:8px; margin:1em 0;">
|
|
<source src="https://github.com/schwwaaa/videobeaux/assets/7625379/a7bca4c5-46b5-4b51-a827-6b8137d0117d" type="video/mp4">
|
|
Your browser does not support the video tag.
|
|
</video>
|
|
|
|
## Technical Notes
|
|
- Because the smear is subtle, it works well even on footage with delicate details.
|
|
- High-contrast edges reveal the effect most clearly.
|
|
- Compression can either soften or exaggerate the smear depending on CRF.
|
|
- Suitable as a pre-effect before heavier glitch or temporal filters.
|
|
|
|
## Recommended Usage
|
|
- Music videos needing gentle stylistic color bloom.
|
|
- Dreamy ambience sequences and soft-focus aesthetics.
|
|
- Collage art where slight distortion adds cohesion.
|
|
- Retro or analog-inspired edits without heavy degradation.
|
|
- As a smoothing layer before applying `lsd_feedback`, `crossmosh`, or `double_cup`.
|
|
|
|
## Quality Tips
|
|
- Lower CRF gives cleaner, smoother smear edges.
|
|
- Higher CRF makes the smear grainier and more textured.
|
|
- Combine with `gamma_fix` beforehand for more stable channel balancing.
|
|
- Add `blur_pix` afterward for a painterly, soft-focus expansion.
|
|
- Use `convert_dims` before smearing if resizing footage for a platform-specific format.
|
|
|