Computer vision has made huge strides recently, helped by large-scale labeled datasets. However, these datasets had no guarantees or analysis diversity. Additionally, privacy concerns may limit the ability to collect more data. These problems are particularly acute in human-centric computer vision for AR/VR applications. An emerging alternative to real-world data that alleviates some of these issues is synthetic data. However, creating synthetic data generators is incredibly challenging and prevents researchers from exploring their usefulness. To promote research into the use of synthetic data, we release a set of data generators for computer vision. We found that pre-training a network using synthetic data and fine-tuning on real-world target data results in models that outperform models trained with the real data alone. Furthermore, we find remarkable gains when limited real-world data is available. These freely available data generators should enable a wide range of research into the emerging field of simulation to real transfer learning for computer vision.