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Unity 5.x Shaders and Effects Cookbook by Kenneth Lammers, Alan Zucconi

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Using basic Photoshop-like Blend modes with screen effects

The screen effects aren't just limited to adjusting the colors of a rendered image from our game. We can also use them to combine other images with our Render Texture. This technique is no different than creating a new layer in Photoshop and choosing a blend mode to blend two images together or, in our case, a texture with a Render Texture. This becomes a very powerful technique as it gives the artists in a production environment a way to simulate their blending modes in the game rather than just in Photoshop.

For this particular recipe, we are going to take a look at some of the more common blend modes, such as Multiply, Add, and Overlay. You will see how simple it is to have the power ...

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