Clip Operators

bpy.ops.clip.add_marker(*, location=(0.0, 0.0))

Place new marker at specified location

Parameters:

location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Location of marker on frame

bpy.ops.clip.add_marker_at_click()

Place new marker at the desired (clicked) position

bpy.ops.clip.add_marker_move(*, CLIP_OT_add_marker=None, TRANSFORM_OT_translate=None)

Add new marker and move it on movie

Parameters:

• CLIP_OT_add_marker (CLIP_OT_add_marker, (optional)) – Add Marker, Place new marker at specified location

• TRANSFORM_OT_translate (TRANSFORM_OT_translate, (optional)) – Move, Move selected items

bpy.ops.clip.add_marker_slide(*, CLIP_OT_add_marker=None, TRANSFORM_OT_translate=None)

Add new marker and slide it with mouse until mouse button release

Parameters:

• CLIP_OT_add_marker (CLIP_OT_add_marker, (optional)) – Add Marker, Place new marker at specified location

• TRANSFORM_OT_translate (TRANSFORM_OT_translate, (optional)) – Move, Move selected items

bpy.ops.clip.apply_solution_scale(*, distance=0.0)

Apply scale on solution itself to make distance between selected tracks equals to desired

Parameters:

distance (float in [-inf, inf], (optional)) – Distance, Distance between selected tracks

bpy.ops.clip.average_tracks(*, keep_original=True)

Average selected tracks into active

Parameters:

keep_original (boolean, (optional)) – Keep Original, Keep original tracks

bpy.ops.clip.bundles_to_mesh()

Create vertex cloud using coordinates of reconstructed tracks

File:

startup/bl_operators/clip.py:284

bpy.ops.clip.camera_preset_add(*, name='', remove_name=False, remove_active=False, use_focal_length=True)

Add or remove a Tracking Camera Intrinsics Preset

Parameters:

• name (string, (optional, never None)) – Name, Name of the preset, used to make the path name

• remove_name (boolean, (optional)) – remove_name

• remove_active (boolean, (optional)) – remove_active

• use_focal_length (boolean, (optional)) – Include Focal Length, Include focal length into the preset

File:

startup/bl_operators/presets.py:119

bpy.ops.clip.change_frame(*, frame=0)

Interactively change the current frame number

Parameters:

frame (int in [-1048574, 1048574], (optional)) – Frame

bpy.ops.clip.clean_tracks(*, frames=0, error=0.0, action='SELECT')

Clean tracks with high error values or few frames

Parameters:

• frames (int in [0, inf], (optional)) – Tracked Frames, Affect tracks which are tracked less than the specified number of frames

• error (float in [0, inf], (optional)) – Reprojection Error, Affect tracks which have a larger reprojection error

• action (enum in ['SELECT', 'DELETE_TRACK', 'DELETE_SEGMENTS'], (optional)) –

  Action, Cleanup action to execute

  • SELECT Select – Select unclean tracks.

  • DELETE_TRACK Delete Track – Delete unclean tracks.

  • DELETE_SEGMENTS Delete Segments – Delete unclean segments of tracks.

bpy.ops.clip.clear_solution()

Clear all calculated data

bpy.ops.clip.clear_track_path(*, action='REMAINED', clear_active=False)

Clear tracks after/before current position or clear the whole track

Parameters:

• action (enum in ['UPTO', 'REMAINED', 'ALL'], (optional)) –

  Action, Clear action to execute

  • UPTO Clear Up To – Clear path up to current frame.

  • REMAINED Clear Remained – Clear path at remaining frames (after current).

  • ALL Clear All – Clear the whole path.

• clear_active (boolean, (optional)) – Clear Active, Clear active track only instead of all selected tracks

bpy.ops.clip.constraint_to_fcurve()

Create F-Curves for object which will copy object’s movement caused by this constraint

File:

startup/bl_operators/clip.py:522

bpy.ops.clip.copy_tracks()

Copy the selected tracks to the internal clipboard

bpy.ops.clip.create_plane_track()

Create new plane track out of selected point tracks

bpy.ops.clip.cursor_set(*, location=(0.0, 0.0))

Set 2D cursor location

Parameters:

location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Cursor location in normalized clip coordinates

bpy.ops.clip.delete_marker(*, confirm=True)

Delete marker for current frame from selected tracks

Parameters:

confirm (boolean, (optional)) – Confirm, Prompt for confirmation

bpy.ops.clip.delete_proxy()

Delete movie clip proxy files from the hard drive

File:

startup/bl_operators/clip.py:351

bpy.ops.clip.delete_track(*, confirm=True)

Delete selected tracks

Parameters:

confirm (boolean, (optional)) – Confirm, Prompt for confirmation

bpy.ops.clip.detect_features(*, placement='FRAME', margin=16, threshold=0.5, min_distance=120)

Automatically detect features and place markers to track

Parameters:

• placement (enum in ['FRAME', 'INSIDE_GPENCIL', 'OUTSIDE_GPENCIL'], (optional)) –

  Placement, Placement for detected features

  • FRAME Whole Frame – Place markers across the whole frame.

  • INSIDE_GPENCIL Inside Annotated Area – Place markers only inside areas outlined with the Annotation tool.

  • OUTSIDE_GPENCIL Outside Annotated Area – Place markers only outside areas outlined with the Annotation tool.

• margin (int in [0, inf], (optional)) – Margin, Only features further than margin pixels from the image edges are considered

• threshold (float in [0.0001, inf], (optional)) – Threshold, Threshold level to consider feature good enough for tracking

• min_distance (int in [0, inf], (optional)) – Distance, Minimal distance accepted between two features

bpy.ops.clip.disable_markers(*, action='DISABLE')

Disable/enable selected markers

Parameters:

action (enum in ['DISABLE', 'ENABLE', 'TOGGLE'], (optional)) –

Action, Disable action to execute

• DISABLE Disable – Disable selected markers.

• ENABLE Enable – Enable selected markers.

• TOGGLE Toggle – Toggle disabled flag for selected markers.

bpy.ops.clip.dopesheet_select_channel(*, location=(0.0, 0.0), extend=False)

Select movie tracking channel

Parameters:

• location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Mouse location to select channel

• extend (boolean, (optional)) – Extend, Extend selection rather than clearing the existing selection

bpy.ops.clip.dopesheet_view_all()

Reset viewable area to show full keyframe range

bpy.ops.clip.filter_tracks(*, track_threshold=5.0)

Filter tracks which has weirdly looking spikes in motion curves

Parameters:

track_threshold (float in [-inf, inf], (optional)) – Track Threshold, Filter Threshold to select problematic tracks

File:

startup/bl_operators/clip.py:198

bpy.ops.clip.frame_jump(*, position='PATHSTART')

Jump to special frame

Parameters:

position (enum in ['PATHSTART', 'PATHEND', 'FAILEDPREV', 'FAILNEXT'], (optional)) –

Position, Position to jump to

• PATHSTART Path Start – Jump to start of current path.

• PATHEND Path End – Jump to end of current path.

• FAILEDPREV Previous Failed – Jump to previous failed frame.

• FAILNEXT Next Failed – Jump to next failed frame.

bpy.ops.clip.graph_center_current_frame()

Scroll view so current frame would be centered

bpy.ops.clip.graph_delete_curve(*, confirm=True)

Delete track corresponding to the selected curve

Parameters:

confirm (boolean, (optional)) – Confirm, Prompt for confirmation

bpy.ops.clip.graph_delete_knot()

Delete curve knots

bpy.ops.clip.graph_disable_markers(*, action='DISABLE')

Disable/enable selected markers

Parameters:

action (enum in ['DISABLE', 'ENABLE', 'TOGGLE'], (optional)) –

Action, Disable action to execute

• DISABLE Disable – Disable selected markers.

• ENABLE Enable – Enable selected markers.

• TOGGLE Toggle – Toggle disabled flag for selected markers.

bpy.ops.clip.graph_select(*, location=(0.0, 0.0), extend=False)

Select graph curves

Parameters:

• location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Mouse location to select nearest entity

• extend (boolean, (optional)) – Extend, Extend selection rather than clearing the existing selection

bpy.ops.clip.graph_select_all_markers(*, action='TOGGLE')

Change selection of all markers of active track

Parameters:

action (enum in ['TOGGLE', 'SELECT', 'DESELECT', 'INVERT'], (optional)) –

Action, Selection action to execute

• TOGGLE Toggle – Toggle selection for all elements.

• SELECT Select – Select all elements.

• DESELECT Deselect – Deselect all elements.

• INVERT Invert – Invert selection of all elements.

bpy.ops.clip.graph_select_box(*, xmin=0, xmax=0, ymin=0, ymax=0, wait_for_input=True, deselect=False, extend=True)

Select curve points using box selection

Parameters:

• xmin (int in [-inf, inf], (optional)) – X Min

• xmax (int in [-inf, inf], (optional)) – X Max

• ymin (int in [-inf, inf], (optional)) – Y Min

• ymax (int in [-inf, inf], (optional)) – Y Max

• wait_for_input (boolean, (optional)) – Wait for Input

• deselect (boolean, (optional)) – Deselect, Deselect rather than select items

• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting everything first

bpy.ops.clip.graph_view_all()

View all curves in editor

bpy.ops.clip.hide_tracks(*, unselected=False)

Hide selected tracks

Parameters:

unselected (boolean, (optional)) – Unselected, Hide unselected tracks

bpy.ops.clip.hide_tracks_clear()

Clear hide selected tracks

bpy.ops.clip.join_tracks()

Join selected tracks

bpy.ops.clip.keyframe_delete()

Delete a keyframe from selected tracks at current frame

bpy.ops.clip.keyframe_insert()

Insert a keyframe to selected tracks at current frame

bpy.ops.clip.lock_selection_toggle()

Toggle Lock Selection option of the current clip editor

bpy.ops.clip.lock_tracks(*, action='LOCK')

Lock/unlock selected tracks

Parameters:

action (enum in ['LOCK', 'UNLOCK', 'TOGGLE'], (optional)) –

Action, Lock action to execute

• LOCK Lock – Lock selected tracks.

• UNLOCK Unlock – Unlock selected tracks.

• TOGGLE Toggle – Toggle locked flag for selected tracks.

bpy.ops.clip.mode_set(*, mode='TRACKING')

Set the clip interaction mode

Parameters:

mode (enum in Clip Editor Mode Items, (optional)) – Mode

bpy.ops.clip.new_image_from_plane_marker()

Create new image from the content of the plane marker

bpy.ops.clip.open(*, directory='', files=None, hide_props_region=True, check_existing=False, filter_blender=False, filter_backup=False, filter_image=True, filter_movie=True, filter_python=False, filter_font=False, filter_sound=False, filter_text=False, filter_archive=False, filter_btx=False, filter_collada=False, filter_alembic=False, filter_usd=False, filter_obj=False, filter_volume=False, filter_folder=True, filter_blenlib=False, filemode=9, relative_path=True, show_multiview=False, use_multiview=False, display_type='DEFAULT', sort_method='')

Load a sequence of frames or a movie file

Parameters:

• directory (string, (optional, never None)) – Directory, Directory of the file

• files (bpy_prop_collection of OperatorFileListElement, (optional)) – Files

• hide_props_region (boolean, (optional)) – Hide Operator Properties, Collapse the region displaying the operator settings

• check_existing (boolean, (optional)) – Check Existing, Check and warn on overwriting existing files

• filter_blender (boolean, (optional)) – Filter .blend files

• filter_backup (boolean, (optional)) – Filter .blend files

• filter_image (boolean, (optional)) – Filter image files

• filter_movie (boolean, (optional)) – Filter movie files

• filter_python (boolean, (optional)) – Filter Python files

• filter_font (boolean, (optional)) – Filter font files

• filter_sound (boolean, (optional)) – Filter sound files

• filter_text (boolean, (optional)) – Filter text files

• filter_archive (boolean, (optional)) – Filter archive files

• filter_btx (boolean, (optional)) – Filter btx files

• filter_collada (boolean, (optional)) – Filter COLLADA files

• filter_alembic (boolean, (optional)) – Filter Alembic files

• filter_usd (boolean, (optional)) – Filter USD files

• filter_obj (boolean, (optional)) – Filter OBJ files

• filter_volume (boolean, (optional)) – Filter OpenVDB volume files

• filter_folder (boolean, (optional)) – Filter folders

• filter_blenlib (boolean, (optional)) – Filter Blender IDs

• filemode (int in [1, 9], (optional)) – File Browser Mode, The setting for the file browser mode to load a .blend file, a library or a special file

• relative_path (boolean, (optional)) – Relative Path, Select the file relative to the blend file

• show_multiview (boolean, (optional)) – Enable Multi-View

• use_multiview (boolean, (optional)) – Use Multi-View

• display_type (enum in ['DEFAULT', 'LIST_VERTICAL', 'LIST_HORIZONTAL', 'THUMBNAIL'], (optional)) –

  Display Type

  • DEFAULT Default – Automatically determine display type for files.

  • LIST_VERTICAL Short List – Display files as short list.

  • LIST_HORIZONTAL Long List – Display files as a detailed list.

  • THUMBNAIL Thumbnails – Display files as thumbnails.

• sort_method (enum in ['DEFAULT', 'FILE_SORT_ALPHA', 'FILE_SORT_EXTENSION', 'FILE_SORT_TIME', 'FILE_SORT_SIZE'], (optional)) –

  File sorting mode

  • DEFAULT Default – Automatically determine sort method for files.

  • FILE_SORT_ALPHA Name – Sort the file list alphabetically.

  • FILE_SORT_EXTENSION Extension – Sort the file list by extension/type.

  • FILE_SORT_TIME Modified Date – Sort files by modification time.

  • FILE_SORT_SIZE Size – Sort files by size.

bpy.ops.clip.paste_tracks()

Paste tracks from the internal clipboard

bpy.ops.clip.prefetch()

Prefetch frames from disk for faster playback/tracking

bpy.ops.clip.rebuild_proxy()

Rebuild all selected proxies and timecode indices in the background

bpy.ops.clip.refine_markers(*, backwards=False)

Refine selected markers positions by running the tracker from track’s reference to current frame

Parameters:

backwards (boolean, (optional)) – Backwards, Do backwards tracking

bpy.ops.clip.reload()

Reload clip

bpy.ops.clip.select(*, extend=False, deselect_all=False, location=(0.0, 0.0))

Select tracking markers

Parameters:

• extend (boolean, (optional)) – Extend, Extend selection rather than clearing the existing selection

• deselect_all (boolean, (optional)) – Deselect On Nothing, Deselect all when nothing under the cursor

• location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Mouse location in normalized coordinates, 0.0 to 1.0 is within the image bounds

bpy.ops.clip.select_all(*, action='TOGGLE')

Change selection of all tracking markers

Parameters:

action (enum in ['TOGGLE', 'SELECT', 'DESELECT', 'INVERT'], (optional)) –

Action, Selection action to execute

• TOGGLE Toggle – Toggle selection for all elements.

• SELECT Select – Select all elements.

• DESELECT Deselect – Deselect all elements.

• INVERT Invert – Invert selection of all elements.

bpy.ops.clip.select_box(*, xmin=0, xmax=0, ymin=0, ymax=0, wait_for_input=True, mode='SET')

Select markers using box selection

Parameters:

• xmin (int in [-inf, inf], (optional)) – X Min

• xmax (int in [-inf, inf], (optional)) – X Max

• ymin (int in [-inf, inf], (optional)) – Y Min

• ymax (int in [-inf, inf], (optional)) – Y Max

• wait_for_input (boolean, (optional)) – Wait for Input

• mode (enum in ['SET', 'ADD', 'SUB'], (optional)) –

  Mode

  • SET Set – Set a new selection.

  • ADD Extend – Extend existing selection.

  • SUB Subtract – Subtract existing selection.

bpy.ops.clip.select_circle(*, x=0, y=0, radius=25, wait_for_input=True, mode='SET')

Select markers using circle selection

Parameters:

• x (int in [-inf, inf], (optional)) – X

• y (int in [-inf, inf], (optional)) – Y

• radius (int in [1, inf], (optional)) – Radius

• wait_for_input (boolean, (optional)) – Wait for Input

• mode (enum in ['SET', 'ADD', 'SUB'], (optional)) –

  Mode

  • SET Set – Set a new selection.

  • ADD Extend – Extend existing selection.

  • SUB Subtract – Subtract existing selection.

bpy.ops.clip.select_grouped(*, group='ESTIMATED')

Select all tracks from specified group

Parameters:

group (enum in ['KEYFRAMED', 'ESTIMATED', 'TRACKED', 'LOCKED', 'DISABLED', 'COLOR', 'FAILED'], (optional)) –

Action, Clear action to execute

• KEYFRAMED Keyframed Tracks – Select all keyframed tracks.

• ESTIMATED Estimated Tracks – Select all estimated tracks.

• TRACKED Tracked Tracks – Select all tracked tracks.

• LOCKED Locked Tracks – Select all locked tracks.

• DISABLED Disabled Tracks – Select all disabled tracks.

• COLOR Tracks with Same Color – Select all tracks with same color as active track.

• FAILED Failed Tracks – Select all tracks which failed to be reconstructed.

bpy.ops.clip.select_lasso(*, path=None, use_smooth_stroke=False, smooth_stroke_factor=0.75, smooth_stroke_radius=35, mode='SET')

Select markers using lasso selection

Parameters:

• path (bpy_prop_collection of OperatorMousePath, (optional)) – Path

• use_smooth_stroke (boolean, (optional)) – Stabilize Stroke, Selection lags behind mouse and follows a smoother path

• smooth_stroke_factor (float in [0.5, 0.99], (optional)) – Smooth Stroke Factor, Higher values gives a smoother stroke

• smooth_stroke_radius (int in [10, 200], (optional)) – Smooth Stroke Radius, Minimum distance from last point before selection continues

• mode (enum in ['SET', 'ADD', 'SUB'], (optional)) –

  Mode

  • SET Set – Set a new selection.

  • ADD Extend – Extend existing selection.

  • SUB Subtract – Subtract existing selection.

bpy.ops.clip.set_active_clip()

Undocumented, consider contributing.

File:

startup/bl_operators/clip.py:213

bpy.ops.clip.set_axis(*, axis='X')

Set the direction of a scene axis by rotating the camera (or its parent if present). This assumes that the selected track lies on a real axis connecting it to the origin

Parameters:

axis (enum in ['X', 'Y'], (optional)) –

Axis, Axis to use to align bundle along

• X X – Align bundle align X axis.

• Y Y – Align bundle align Y axis.

bpy.ops.clip.set_origin(*, use_median=False)

Set active marker as origin by moving camera (or its parent if present) in 3D space

Parameters:

use_median (boolean, (optional)) – Use Median, Set origin to median point of selected bundles

bpy.ops.clip.set_plane(*, plane='FLOOR')

Set plane based on 3 selected bundles by moving camera (or its parent if present) in 3D space

Parameters:

plane (enum in ['FLOOR', 'WALL'], (optional)) –

Plane, Plane to be used for orientation

• FLOOR Floor – Set floor plane.

• WALL Wall – Set wall plane.

bpy.ops.clip.set_scale(*, distance=0.0)

Set scale of scene by scaling camera (or its parent if present)

Parameters:

distance (float in [-inf, inf], (optional)) – Distance, Distance between selected tracks

bpy.ops.clip.set_scene_frames()

Set scene’s start and end frame to match clip’s start frame and length

bpy.ops.clip.set_solution_scale(*, distance=0.0)

Set object solution scale using distance between two selected tracks

Parameters:

distance (float in [-inf, inf], (optional)) – Distance, Distance between selected tracks

bpy.ops.clip.set_solver_keyframe(*, keyframe='KEYFRAME_A')

Set keyframe used by solver

Parameters:

keyframe (enum in ['KEYFRAME_A', 'KEYFRAME_B'], (optional)) – Keyframe, Keyframe to set

bpy.ops.clip.set_viewport_background()

Set current movie clip as a camera background in 3D Viewport (works only when a 3D Viewport is visible)

File:

startup/bl_operators/clip.py:412

bpy.ops.clip.setup_tracking_scene()

Prepare scene for compositing 3D objects into this footage

File:

startup/bl_operators/clip.py:980

bpy.ops.clip.slide_marker(*, offset=(0.0, 0.0))

Slide marker areas

Parameters:

offset (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Offset, Offset in floating-point units, 1.0 is the width and height of the image

bpy.ops.clip.slide_plane_marker()

Slide plane marker areas

bpy.ops.clip.solve_camera()

Solve camera motion from tracks

bpy.ops.clip.stabilize_2d_add()

Add selected tracks to 2D translation stabilization

bpy.ops.clip.stabilize_2d_remove()

Remove selected track from translation stabilization

bpy.ops.clip.stabilize_2d_rotation_add()

Add selected tracks to 2D rotation stabilization

bpy.ops.clip.stabilize_2d_rotation_remove()

Remove selected track from rotation stabilization

bpy.ops.clip.stabilize_2d_rotation_select()

Select tracks which are used for rotation stabilization

bpy.ops.clip.stabilize_2d_select()

Select tracks which are used for translation stabilization

bpy.ops.clip.track_color_preset_add(*, name='', remove_name=False, remove_active=False)

Add or remove a Clip Track Color Preset

Parameters:

• name (string, (optional, never None)) – Name, Name of the preset, used to make the path name

• remove_name (boolean, (optional)) – remove_name

• remove_active (boolean, (optional)) – remove_active

File:

startup/bl_operators/presets.py:119

bpy.ops.clip.track_copy_color()

Copy color to all selected tracks

bpy.ops.clip.track_markers(*, backwards=False, sequence=False)

Track selected markers

Parameters:

• backwards (boolean, (optional)) – Backwards, Do backwards tracking

• sequence (boolean, (optional)) – Track Sequence, Track marker during image sequence rather than single image

bpy.ops.clip.track_settings_as_default()

Copy tracking settings from active track to default settings

File:

startup/bl_operators/clip.py:1009

bpy.ops.clip.track_settings_to_track()

Copy tracking settings from active track to selected tracks

File:

startup/bl_operators/clip.py:1058

bpy.ops.clip.track_to_empty()

Create an Empty object which will be copying movement of active track

File:

startup/bl_operators/clip.py:260

bpy.ops.clip.tracking_object_new()

Add new object for tracking

bpy.ops.clip.tracking_object_remove()

Remove object for tracking

bpy.ops.clip.tracking_settings_preset_add(*, name='', remove_name=False, remove_active=False)

Add or remove a motion tracking settings preset

Parameters:

• name (string, (optional, never None)) – Name, Name of the preset, used to make the path name

• remove_name (boolean, (optional)) – remove_name

• remove_active (boolean, (optional)) – remove_active

File:

startup/bl_operators/presets.py:119

bpy.ops.clip.update_image_from_plane_marker()

Update current image used by plane marker from the content of the plane marker

bpy.ops.clip.view_all(*, fit_view=False)

View whole image with markers

Parameters:

fit_view (boolean, (optional)) – Fit View, Fit frame to the viewport

bpy.ops.clip.view_center_cursor()

Center the view so that the cursor is in the middle of the view

bpy.ops.clip.view_ndof()

Use a 3D mouse device to pan/zoom the view

bpy.ops.clip.view_pan(*, offset=(0.0, 0.0))

Pan the view

Parameters:

offset (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Offset, Offset in floating-point units, 1.0 is the width and height of the image

bpy.ops.clip.view_selected()

View all selected elements

bpy.ops.clip.view_zoom(*, factor=0.0, use_cursor_init=True)

Zoom in/out the view

Parameters:

• factor (float in [-inf, inf], (optional)) – Factor, Zoom factor, values higher than 1.0 zoom in, lower values zoom out

• use_cursor_init (boolean, (optional)) – Use Mouse Position, Allow the initial mouse position to be used

bpy.ops.clip.view_zoom_in(*, location=(0.0, 0.0))

Zoom in the view

Parameters:

location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Cursor location in screen coordinates

bpy.ops.clip.view_zoom_out(*, location=(0.0, 0.0))

Zoom out the view

Parameters:

location (mathutils.Vector of 2 items in [-inf, inf], (optional)) – Location, Cursor location in normalized (0.0 to 1.0) coordinates

bpy.ops.clip.view_zoom_ratio(*, ratio=0.0)

Set the zoom ratio (based on clip size)

Parameters:

ratio (float in [-inf, inf], (optional)) – Ratio, Zoom ratio, 1.0 is 1:1, higher is zoomed in, lower is zoomed out