Learn How to Take Images out of Their Background
Hey everyone. Today we’re going to learn how to render objects. This means that we’re going to take a foreground image out of its background. To do this, we’re going to be using the pen tool. I assume that you have basic knowledge of the pen tool. If you don’t or have never used it before, I’d suggest checking out the pen tool tutorial.
1. Let’s start by finding an image or wallpaper with something we want to take out. If you enjoy making sigs, there’s a good chance that you’ve used a render from gamewallpapers.com. This is where I’ll be using mine from.
I’m using this Alone in the Dark wallpaper from www.gamewallpapers.com
2. So before we start cutting out the guy in the wallpaper, we may want to crop out the unnecessary background. This will make zooming in a little bit easier.
3. Once you’re ready to start rendering, select your pen tool and make sure it’s set to “Paths”. 
4. Zoom in on your wallpaper to around 500-800 percent. When I start rendering, I like to begin in the lower right side.
5. Click once in the over left of the guy, then click again towards the top of your window. You should receive a straight line. Don’t worry; we’re going to smooth it out.
6. Putting your curser on the line, you should yield the pen tool icon with a plus sign to the right of it. When you click, you’ll get a point in the line.
7. By hovering over the new point, press control on your keyboard. When you get the mouse icon, you’re able to move this point and conform it to the image.
Remember that it’s OK to delete points (left clicking on them) and re-doing them. Rendering takes patients. The faster you go, the more likely your render is going to end how you don’t want it.
The above technique isn’t the only way to render images using the pen tool. A lot of people like to put a new point ever few pixels and conform their outline to their render that way. I generally like to use both. For large smooth lines, I use the technique above, for smaller rougher lines, I prefer the technique below.
If you're rendering a dark area, it helps to turn up your monitor's brightness.