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@@ -67,6 +67,7 @@ make && sudo make install
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### Shaders
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Slop allows for chained post-processing shaders. Shaders are written in a language called GLSL, and have access to the following data from slop:
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| GLSL Name | Data Type | Bound to |
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|------------|----------------|-------------------------------------------------------------------------------------------------|
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| mouse | vec2 | The mouse position on the screen. |
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| screenSize | vec2 | The dimensions of the screen, where the x value is the width. |
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| position | vec2 attribute | This contains the vertex data for the rectangle. Only contains (0,0), (1,0), (1,1), and (0,1). |
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| uv | vec2 attribute | Same as the position, this contians the UV information of each vertext. |
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The desktop texture is upside-down because flipping it would cost valuable time.
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Shaders must be placed in your `${XDG_CONFIG_HOME}/slop` directory, where *XDG_CONFIG_HOME* is typically `~/.config/`. This folder won't exist unless you make it yourself.
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