The Unreal Engine is considered to be a rasterizer. But why is creating these panoramas so much easier with ray tracing? This post is about creating 360° animated panoramas the easy way using the Unreal Engine and Imagination’s Wizard GR6500 ray tracing hardware. So that’s a long preamble to this without the words ray tracing. The possible applications range from computer-generated animated feature films to architectural fly-by renderings of yet to be built structures. However, in both cases panoramas add much entertainment value by giving each viewer the potential for a unique experience. Stereoscopic panoramas do provide some depth perception but must be viewed with a VR headset. Monoscopic panoramas provide no depth information. They should not be confused with 3D content shown on theatrical screenings or 3D capable televisions, which are viewed with special glasses. Some also refer to 360° videos as 3D since you can look all around, either by spinning the sphere or moving a mobile device. The ambiguity is compounded as VR headsets are the optimal way of viewing these 360° videos. However, with live action panoramas you are a passive viewer rather than an interactive participant. Virtual reality (VR) is currently described as a computer-generated world with some level of interactivity. They are often labeled as 3D or VR but it’s not really accurate. These panoramas are actually two 360×180 equirectangular 2D images stitched together and projected onto a conceptual 3D sphere. What I’m referring to are mostly live action movies shot with a growing list of 360° video capable cameras. Even without a VR headset they offer a uniquely immersive experience. 360° VR panorama videos have been trending on YouTube since the viewing feature was introduced in 2015.
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