# Crane Shot

> Camera starts low and rises up to reveal the full product. Great for dramatic product reveals on a pedestal.

- **Type:** Skill
- **Install:** `agentstack add skill-max-786-claude-3d-harness-crane-shot`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [MAX-786](https://agentstack.voostack.com/s/max-786)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [MAX-786](https://github.com/MAX-786)
- **Source:** https://github.com/MAX-786/claude-3d-harness/tree/main/library/kb/crane-shot

## Install

```sh
agentstack add skill-max-786-claude-3d-harness-crane-shot
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

## Crane Shot Camera Animation

Camera begins at a low angle looking up at the product, then smoothly rises to reveal the full product from above. Creates a dramatic unveiling effect.

## When to Use

- User wants a "reveal" or "unveil" shot
- User says "crane", "rise up", "low to high", "dramatic reveal"
- Product on a pedestal or platform

## Parameters

| Parameter | Default | Description |
|-----------|---------|-------------|
| `duration` | `5` | Video length in seconds |
| `fps` | `24` | Frames per second |
| `start_height` | `-0.2` | Starting height (below product level) |
| `end_height` | `3.5` | Ending height (above product) |
| `start_distance` | `3.0` | Starting distance |
| `end_distance` | `4.0` | Ending distance (pulls back as it rises) |

## Flow

### Step 1: Set Up Camera

```python
import bpy, math

bpy.ops.object.empty_add(type='PLAIN_AXES', location=(0, 0, 0.05))
tgt = bpy.context.active_object
tgt.name = 'CraneTarget'

bpy.ops.object.camera_add(location=(1.0, -START_DISTANCE, START_HEIGHT))
cam = bpy.context.active_object
cam.name = 'CraneCam'
cam.data.lens = 45

trk = cam.constraints.new(type='TRACK_TO')
trk.target = tgt
trk.track_axis = 'TRACK_NEGATIVE_Z'
trk.up_axis = 'UP_Y'

bpy.context.scene.camera = cam
```

### Step 2: Animate Crane Movement

```python
TOTAL_FRAMES = DURATION * FPS

scene = bpy.context.scene
scene.frame_start = 1
scene.frame_end = TOTAL_FRAMES
scene.render.fps = FPS

# Start low
cam.location = (1.0, -START_DISTANCE, START_HEIGHT)
cam.keyframe_insert(data_path='location', frame=1)
cam.data.lens = 45
cam.data.keyframe_insert(data_path='lens', frame=1)

# Rise up and pull back
cam.location = (1.5, -END_DISTANCE, END_HEIGHT)
cam.keyframe_insert(data_path='location', frame=TOTAL_FRAMES)
cam.data.lens = 35
cam.data.keyframe_insert(data_path='lens', frame=TOTAL_FRAMES)

# BEZIER for smooth crane motion
```

### Step 3: Render + Encode

Same pipeline — Cycles, PNG sequence, ffmpeg ProRes 4444.

```bash
ffmpeg -y -framerate 24 \
  -i "~/Desktop/Blender Videos/crane_frames/%04d.png" \
  -c:v prores_ks -profile:v 4444 -pix_fmt yuva444p10le \
  "~/Desktop/Blender Videos/crane_shot.mov"
```

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [MAX-786](https://github.com/MAX-786)
- **Source:** [MAX-786/claude-3d-harness](https://github.com/MAX-786/claude-3d-harness)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-max-786-claude-3d-harness-crane-shot
- Seller: https://agentstack.voostack.com/s/max-786
- Browse the marketplace: https://agentstack.voostack.com/browse

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