Dolly + Rotate Camera Animation
Camera dollies forward while simultaneously rotating around the product, creating a dynamic sweeping reveal that's more engaging than a straight zoom or static orbit.
When to Use
- User wants a "dynamic" or "sweeping" shot
- User says "dolly", "move and rotate", "sweeping reveal"
- More cinematic than a simple turntable
Parameters
| Parameter | Default | Description |
|---|---|---|
duration | 5 | Video length in seconds |
fps | 24 | Frames per second |
rotation_degrees | 90 | How far to rotate during the dolly |
start_distance | 4.0 | Starting distance |
end_distance | 2.5 | Ending distance |
start_height | 2.0 | Starting height |
end_height | 1.5 | Ending height |
Flow
Step 1: Set Up Camera Rig
pythonimport bpy, math bpy.ops.object.empty_add(type='PLAIN_AXES', location=(0, 0, 0.05)) tgt = bpy.context.active_object tgt.name = 'DollyTarget' bpy.ops.object.camera_add(location=(2.5, -START_DISTANCE, START_HEIGHT)) cam = bpy.context.active_object cam.name = 'DollyCam' cam.data.lens = 40 trk = cam.constraints.new(type='TRACK_TO') trk.target = tgt trk.track_axis = 'TRACK_NEGATIVE_Z' trk.up_axis = 'UP_Y' # Parent camera to target for orbital rotation bpy.ops.object.select_all(action='DESELECT') cam.select_set(True) tgt.select_set(True) bpy.context.view_layer.objects.active = tgt bpy.ops.object.parent_set(type='OBJECT', keep_transform=True) bpy.context.scene.camera = cam
Step 2: Animate Dolly + Rotation
pythonTOTAL_FRAMES = DURATION * FPS scene = bpy.context.scene scene.frame_start = 1 scene.frame_end = TOTAL_FRAMES scene.render.fps = FPS # Frame 1: start position tgt.rotation_euler = (0, 0, 0) tgt.keyframe_insert(data_path='rotation_euler', frame=1) cam.location = (2.5, -START_DISTANCE, START_HEIGHT) cam.keyframe_insert(data_path='location', frame=1) cam.data.lens = 40 cam.data.keyframe_insert(data_path='lens', frame=1) # End: rotated + closer tgt.rotation_euler = (0, 0, math.radians(ROTATION_DEGREES)) tgt.keyframe_insert(data_path='rotation_euler', frame=TOTAL_FRAMES) cam.location = (1.5, -END_DISTANCE, END_HEIGHT) cam.keyframe_insert(data_path='location', frame=TOTAL_FRAMES) cam.data.lens = 50 cam.data.keyframe_insert(data_path='lens', frame=TOTAL_FRAMES) # Default BEZIER interpolation for smooth cinematic feel
Step 3: Render + Encode
Same as turntable — PNG sequence with Cycles, encode to ProRes 4444.
bashffmpeg -y -framerate 24 \ -i "~/Desktop/Blender Videos/dolly_rotate_frames/%04d.png" \ -c:v prores_ks -profile:v 4444 -pix_fmt yuva444p10le \ "~/Desktop/Blender Videos/dolly_rotate.mov"


