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SpriteRecolour Unity demo project

This is a demonstration Unity project for SpriteRecolour command line tool.

Example

From any sprite, a 'reference' sprite is generated which indexes either a palette texture, or an array of shader parameters, either of which can then be swapped to recolour the sprites without any additional copies of the sprite texture.

This demo has both examples of using 1D palette textures and shader parameters. The reference sprite is different in each case because for the palette texture the UV ranges from 0-1 regardless of palette size (with the texture shrinking), while with shader parameters the indexing is more direct. You can make either work with one reference sprite with some additional calculations in the shader, but usually you would pick one approach or the other to make it simpler, hence why I've shown them as separate examples.

The shader parameter version dynamically lerps between two palettes; you could do that with the palette texture too by updating the texture in code (it's small) but the example fits parameters better.

Hope it's useful!

Attribution

Thanks to Stephen Challener (Redshrike) and Zi Ye, for the Sinbad sprite, figured it was appropriate since it's the mascot for an engine I previously created, Ogre3D

License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.