Animated sprite editor & pixel art tool (Windows, macOS, Linux)
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David Capello a6d900fc2c Fix several old issues with indexed images and transparent color
- If we use a RGB color in a background layer (indexed image),
  and the first palette entry (transparent color) matches that RGB color,
  we can use that entry, because this is the background (the transparent
  color isn't transparent at all in the background layer).
- If we use the same RGB color in a transparent color, we've to avoid the
  transparent color, because the user want to paint with that specific
  solid color.
- Palette::findBestfit() receives a mask_index now, so we can find what
  color best matches a specific RGB avoiding that specific mask color,
  or we can use -1 to use any color (e.g. for background layers).
- Added app::ColorTarget() to simplify and fix color_utils::color_for_layer
  and app_get_color_to_clear_layer(), so now we can use the new findBestfit
  to return the transparent color for background layers (if a RGB color
  matches the transparent color RGB values).
- Removed fixup_color_for_layer/background() functions in color_utils
- Fix NewImageFromMask() to use the mask color to clear the image
- Improve the Editor pen preview (cursor.cpp) to draw the bounds of the
  pen when it will paint with the transparent color.
2014-05-08 00:30:36 -03:00
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data Remove the number of colors entry field from "New Sprite" dialog 2014-05-06 00:08:43 -03:00
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Aseprite

Copyright (C) 2001-2014 David Capello

THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY
See the license section for more information.

Introduction

Aseprite is an open source program to create animated sprites. Its main features are:

  • Sprites are composed by layers & frames (as separated concepts).
  • Supported color modes: RGBA, Indexed (palettes up to 256 colors), and Grayscale.
  • Load/save sequence of PNG files and GIF animations (also FLC, FLI, JPG, BMP, PCX, TGA).
  • Export/import animations to/from Sprite Sheets.
  • Tiled drawing mode, useful to draw patterns and textures.
  • Undo/Redo for every operation.
  • Mini-editor with real-time animation preview.
  • Multiple editors support.
  • Pixel art specific tools like filled Contour & Polygon.
  • Onion skinning

Issues

There are a list of Known Issues (things to be fixed or that aren't yet implemented).

If you found a bug, or you have a new idea/feature for the program, you can report them using the following links:

Support

You can ask for help in:

License

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Authors

Thanks to all the people who have contributed ideas, patches, bugs report, feature requests, donations, and help me developing Aseprite.

Credits

Aseprite uses libraries or parts of the original source code of the following projects created by third-parties:

Other parts of code by:

  • Gary Oberbrunner
    Code to quantize RGB images with ordered dither method.