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xnaxna-4.0effectspritebatch

apply color saturation on the entire renderer

I would like to apply a color saturation on the entire final renderer.

Is there an easy way to do it without using shaders ? I don't know anything about DirectX :x

I saw an "Effect" parameter in spriteBatch.Begin() but i didn't find any tutorial about it :s

Hope you can guide me.

Solution

  • You need a shader to this. A shader is an Effect.

    You can create a new effect by right clicking a content project, clicking "Add New Item", and selecting a "Effect" file. The resulting .fx file is in the HLSL language. It will be compiled by the content pipeline, and you an load it with:

    Effect myEffect = Content.Load<Effect>("myEffect");

    There is an official example of how to use effects with SpriteBatch here (if you want desaturation, there's an example in there). And this blog post may also be useful.

    I won't reproduce the code for a saturation effect here, but you can find several examples via Google. Here is one example on the GameDev site.