This is a demonstration Unity project for SpriteRecolour command line tool.
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!
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
Copyright © 2016 Steve Streeting
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