kevinbadi/blender-skills

slow-zoom

Cinematic slow push-in zoom toward a hero detail on the product.

Quelltext ansehen

Verwendung

  1. Installationsbefehl kopieren und das Quellpaket vor der Installation in der eigenen Agentenumgebung prüfen.
  2. Benötigte Werkzeuge, Zugangsdaten und Hosts im Original prüfen.
  3. Eingabe und gewünschtes Ergebnis beschreiben und die Ausgabe mit den Quellen abgleichen.
npx skills add https://github.com/kevinbadi/blender-skills --skill slow-zoom

Vor dem Start

  • Die Installation umfasst weder Modellabo noch API-Kontingent oder Dateizugriffsrechte.
  • Sterne und Installationen zeigen Aktivität, keine unabhängige Qualitäts- oder Sicherheitsprüfung.
Originales Skill-Dokument

Aus dem Quell-Repository gerendert; Überschriften, Beispiele, Code, Tabellen, Links und Bilder bleiben erhalten.

Slow Zoom Camera Animation

Camera slowly pushes in from a wide establishing shot to a tight close-up on a hero detail (logo, texture, feature). Includes subtle dolly zoom (focal length shift) for cinematic compression.

When to Use

  • User wants a "reveal" or "hero shot"
  • User says "zoom in", "push in", "close-up on the logo", "cinematic reveal"
  • Highlighting a specific detail or feature on the product

Prerequisites

  • Blender MCP: Connected
  • 3D model: Already imported in the Blender scene
  • Output folder: ~/Desktop/Blender Videos/
  • ffmpeg: Installed

Parameters

ParameterDefaultDescription
duration5Video length in seconds
fps24Frames per second
start_distance4.0Starting camera distance
end_distance1.8Ending camera distance (close-up)
start_height3.0Starting camera height
end_height1.2Ending camera height
start_lens35Starting focal length (wide)
end_lens65Ending focal length (tight)
focus_point(0,0,0.1)Point to zoom toward (e.g. logo center)
transparent_bgtrueTransparent background

Flow

Step 1: Identify Focus Point

Ask user what detail to zoom into, or default to object center. Use AskUserQuestion if unclear.

Step 2: Set Up Camera

python
import bpy, math

# Focus target
bpy.ops.object.empty_add(type='PLAIN_AXES', location=FOCUS_POINT)
tgt = bpy.context.active_object
tgt.name = 'ZoomTarget'

# Camera
bpy.ops.object.camera_add(location=(START_X, -START_DISTANCE, START_HEIGHT))
cam = bpy.context.active_object
cam.name = 'SlowZoomCam'
cam.data.lens = START_LENS

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

bpy.context.scene.camera = cam

Step 3: Animate Push-In

python
import bpy

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

# Start wide
cam.location = (1.5, -START_DISTANCE, START_HEIGHT)
cam.keyframe_insert(data_path='location', frame=1)
cam.data.lens = START_LENS
cam.data.keyframe_insert(data_path='lens', frame=1)

# End tight
cam.location = (0.3, -END_DISTANCE, END_HEIGHT)
cam.keyframe_insert(data_path='location', frame=TOTAL_FRAMES)
cam.data.lens = END_LENS
cam.data.keyframe_insert(data_path='lens', frame=TOTAL_FRAMES)

# Keep default BEZIER interpolation for smooth ease in/out

Step 4: Lighting + Render

Use the same golden hour lighting setup as turntable skill. Render as PNG sequence with Cycles, encode with ffmpeg to ProRes 4444.

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

Tips

  • The focal length shift (35mm to 65mm) creates a subtle dolly zoom / Hitchcock effect
  • BEZIER interpolation gives smooth ease-in/out — don't use LINEAR for this animation
  • Offset the start position slightly on X (e.g. 1.5) for a more cinematic diagonal approach

Verwandte Aufgaben

aus demselben Repository

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