To begin, we have to get our assets ready. So let's follow the next few steps to get our screen effects system up and running for our new Blend mode screen effect:
- We will need another texture to perform our Blend mode effect. In this recipe, we will use a grunge-type texture. This will make the effect very obvious when we are testing it out.
- The following screenshot is the grunge map used in the making of this effect. Finding a texture with enough detail and a nice range of grayscale values will make for a nice texture to test our new effect:
The preceding texture is available in the example code for this book in Chapter ...
