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  • The Sprite Editor is used to take images

  • containing multiple elements like an atlas or sprite sheet

  • and slice them in to individual sprites.

  • It is important that the sprite mode of the image

  • is set to Multiple.

  • Images with sprite modes set to single

  • cannot use the sprite editor window at this time.

  • For more information on sprites, sprite mode and the sprite type

  • please see the information link below.

  • When sprite mode multiple is selected

  • the sprite editor button will appear on the

  • texture importer in the inspector.

  • Click the sprite editor button to open the sprite editor.

  • The sprite editor can also be opened by selecting

  • Window - Sprite Editor.

  • The sprite editor window is a standard Unity window.

  • It can be used and docked like any other window.

  • To create sprites in the sprite editor window

  • slice the image by clicking and dragging

  • over the desired elements.

  • This will create rectangular selections that define each sprite.

  • The rectangular selection can be adjusted

  • by clicking and dragging the rectangle.

  • Click and drag anywhere inside the rectangle to move it.

  • Click and drag any of the corners or edges to resize it.

  • Click and drag the pivot point gizmo to move

  • the pivot point for that sprite.

  • When a sprite is selected a sprite panel appears

  • in the lower right of the sprite editor

  • with details about the selected sprite.

  • Name is the name of the sprite.

  • The name is created from the name of the original image

  • and the order in which it was sliced from that image,

  • starting with 0.

  • Position defines where the sprite

  • is on the image, in pixels.

  • X and Y define the start point of the sprite.

  • measured from the lower left corner of the image.

  • to the lower left corner of the sprite.

  • W and H define the width and height

  • of the sprite, from the start point.

  • The trim button can be used to trim off any

  • excess space around the element,

  • creating the tightest fitting rectangle possible.

  • Pivot sets the pivot point for this sprite.

  • The pivot drop-down menu includes presets

  • for each corner and the centre of each edge.

  • Custom allows for a custom pivot point

  • to be set numerically under Custom Pivot.

  • Along the top of the sprite editor are a

  • number of tools.

  • The slice menu,

  • the revert and apply buttons,

  • the RGB alpha toggle

  • and the zoom slider.

  • The slice menu is used to automatically create sprites

  • by slicing the sprite elements from the image.

  • The slice type is either automatic or grid.

  • Automatic is best for slicing individual

  • uneven elements, like from an atlas.

  • Elements on the image are automatically

  • detected based on the empty space around them.

  • Each sprite will have effectively been trimmed

  • as a result.

  • With automatic selected minimum size defines the

  • minimum size for each individual sprite.

  • If this value is set too high smaller elements

  • that are near each other could be combined

  • in to 1 larger sprite to meet

  • the minimum size requirements.

  • Pivot sets the default pivot point that will

  • be applied to all sprites when they are

  • spiced from the image.

  • Just like the sprite panel, the pivot drop-down menu

  • includes presets for each corner and the centre of each edge.

  • To set a custom pivot, once the sprites have been sliced

  • select any sprite and adjust it's pivot point

  • in the sprite panel,

  • or adjust it visually in the editor.

  • Method lets you choose how to deal with existing

  • sprites in the sprite editor window.

  • Delete Existing will replace any sprites

  • that already exist with new sprites.

  • Smart will attempt to create new sprites

  • while retaining and adjusting existing ones.

  • Safe will add new sprites without

  • changing any sprites already created.

  • When the settings are correct select the Slice button

  • to slice the image in to individual sprites.

  • After slicing, each sprite can be edited individually.

  • With the sprite sheet, where each element is designed

  • to be a regular identical size,

  • if Slice Type Automatic is used

  • small changes in the individual sprite's shape

  • and the amount of empty space surrounding it

  • could cause the sprites to be cut out unevenly.

  • To evenly slice a sprite sheet made of regular elements

  • choose Slice Type Grid.

  • Pixel Size sets the size of the grid in pixels.

  • Pivot sets the default pivot point that will be applied

  • to all sprites when they are sliced from the image.

  • To set a custom pivot, once the sprites have been sliced,

  • select any sprite and adjust it's pivot point

  • in the sprite panel, or adjust it visually in the editor.

  • When the settings are correct use the slice button

  • to slice the image in to individual sprites.

  • After slicing each sprite can be edited individually.

  • When slicing is complete, to save any changes,

  • select Apply.

  • Or discard any change by selecting Revert.

  • The RGB Alpha toggle switches the

  • display of the sprite editor between the colour image

  • and it's alpha channel, making it easier to see

  • fine details when manually adjusting edges.

  • The zoom slider controls the zoom when viewing the image.

  • When an image has been successfully edited

  • and the changes applied

  • the asset will update in the project window.

  • And a new sprite, or set of sprites

  • can be seen as a child or group of children

  • under the image.

  • When viewing thumbnails in the project view

  • click the turn-down arrow to see any children.

  • Each child represents a useable sprite from that image.

  • Any of these sprites can be used in the

  • project independently, or grouped together

  • to create a character, for example,

  • or used sequentially as animations.

The Sprite Editor is used to take images

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C1 UK sprite pivot editor image slice slicing

The Sprite Editor - Unity Official Tutorials

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    朱瑛 posted on 2014/05/02
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