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Over the last decade, AR researchers and developers have converged toward a well-used method of combining these components using a similar order of execution—the AR control flow.


Cover of Augmented Reality for Android Application Development



The preceding figure, read from the bottom up, shows the main activities of an AR application. This sequence is repeated indefinitely in an AR application; it can be seen as the typical AR main loop (please note that we've excluded the domain logic here as well as the OS activities). Each activity corresponds to the same module we've presented before. The structure of the AR layer and AR control flow is, therefore, quite symmetric.