When trying to import a sprite, it removes slices it so only the visible pixels are left (trims out transparent pixels).
So in this sample
(32px by 6px)
The sprites gets trimmed
This sprite is part of another sprite, so positioning must remain constant. Is there any way to do it?
Also, the sprites are imported with a margin/padding (aditional size) that is affected by shaders:
The top sprite is a PNG export from aseprite, the bottom one is using the imported .aseprite file. They share the same shader, a simple “step fade” shader that hides part of the sprite based on a range slider (0 meaning full hidden and 1 to fully shown).
The current value is 0.33. As you can see, the top sprite is correctly calculating the fade effect, but the botton one is nearly full!
Yes, this is done by Aseprite. The data stored in the .ase/.aseprite file is a cropped version of what you see in the editor.
Making use of Pivot Space: Canvas should help you position the sprite in accordance to another Sprite placed on similarly sized canvases. Have you tried this?
Yes, you can get around this by setting Import Mode to Sprite Sheet. This import mode gives you a sprite sheet, without any automated slicing done by the importer, meaning that you can set the size of each Sprite. Note that you have to define the pivot by yourself when using the Sprite Sheet Import Mode.
In a future version of Aseprite Importer, we are adding an option to remove all margins and paddings, but I don’t have any dates on when this version will make it out to the public yet.
Let me know if you have any questions!