Specifications

Figure 1.23: A grid of lines as they would appear on the screen and through the Rift lenses

To counter the pincushion effect, software needs to apply the inverse (“barrel”) distortion to

the source image before sending it to the Rift, as seen in Figure 1.24. Now the image appears

as intended in the Rift.

Figure 1.24: The source image, the same image after an inverse distortion has been applied, and then the

distorted image as seen through the Rift.

We will cover distortion in more detail in Chapter 4.

Now that we know there are two images presenting different data to each eye, and that the

images are distorted, let’s take a look at a screenshot from a Rift demo to see what that looks

like when viewed on a traditional monitor (Figure 1.25). This two-oval view is what often what

you will see when shown a VR application screenshot and one we will be using in many of the

example pictures in this book.

other simple mistakes. These will be cleaned up during production of the book by copyeditors and proofreaders.

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