To simulate a cloudy outdoor environment, follow these steps:
- In your image editor, create a new 512 x 512 pixel image.
- Using black as the foreground color and white as the background color, apply the Clouds filter – in Photoshop, choose the following menu: Filter | Render | Clouds:
Learning about the Alpha channel is useful, but you could get the same result without it. Skip steps 3 to 7, save your image as cloudCookie.png and, when changing texture type in step 9, leave Alpha from Greyscale checked.
- Select your entire image and copy it.
- Open the Channels window (in Photoshop, this can be done choosing the following menu: ...
