ColorKeying Textures

[Nicolas Gramlich]

Hello Community,

since a recent version of AndEngine, you can now use ColorKeying (remove a specific color or even color-range from a TextureSource) with the ColorKeyTextureSourceDecorator.

This is how it looks like:

ColorKeying a Texture.

colorkeying.png (8.82 KiB) Viewed 1180 times

For the above screenshot, these are the lines of code that make the difference.
Left, original version:

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Using java Syntax Highlighting

1. this.mChromaticCircleTextureRegion = TextureRegionFactory.createFromSource(this.mTexture, baseTextureSource, 0, 0);

Parsed in 0.029 seconds, using GeSHi 1.0.8.4

Right, colorkeyed version (here only the red segment is removed):

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Syntax: [ Download ] [ Show ]

Using java Syntax Highlighting

1. /* We will remove the red segment from the chromatic circle. */
2. final int colorKeyRed = Color.rgb(255, 0, 51); // Color of the red segment.
3. final ColorKeyTextureSourceDecorator colorKeyedTextureSource = new ColorKeyTextureSourceDecorator(baseTextureSource, colorKeyRed);
4.  
5. this.mChromaticCircleColorKeyedTextureRegion = TextureRegionFactory.createFromSource(this.mTexture, colorKeyedTextureSource, 128, 0);

Parsed in 0.032 seconds, using GeSHi 1.0.8.4

Hope this helps some of you

Best Regards,
Nicolas

[drjava72]

Nicolas we love you