Complex sentence: IrisVR has been rapidly developing virtual reality software for the Oculus Rift that would allow for models to be uploaded to the Rift and then allow for architects or consumers to be able to take a virtual tour of the model.
Split into simpler sentences: IrisVR has been developing virtual reality software for the Oculus Rift that would allow for models to be uploaded to the Rift. Architects or consumers will then to be able to take a virtual tour of the model.