Immersive Gallery: SXSW 2023 in Virtual Reality | Stories | Zach Fox Photography

Positional audio is enabled by default.

Stereo headphones are highly recommended.

These photos are 3D spherical panoramas.

For the full experience, use a VR headset - no app required.

Use your mouse, finger, or head to look around each scene.

Tap to learn more about this gallery.

About This Gallery

Immersive Photo Capture

I created the images in the gallery above using a unique and strange camera lens: the Canon RF5.2mm f/2.8L Dual Fisheye .

A Canon R5 sporting an RF5.2mm F2.8 L Dual Fisheye lens.

Here's a sample image that comes straight out of the RF5.2mm f/2.8L Dual Fisheye lens:

A raw image of One WTC captured with the RF5.2mm F2.8 L Dual Fisheye lens.

Each of the two lenses on this lens captures a 190° field of view vertically and horizontally, meaning the lens captures photons from behind itself. Both of the circular image areas above contain a view of the other lens:

Showing off the 190 degree field of view of the lens.

Most humans can see in three dimensions because, among other reasons, we have two eyes separated by a short distance known as your interpupillary distance, or IPD. When I captured a photo with this lens, I was capturing the same subject from two unique points of view separated by 60mm. If we manipulate and view the images in a specific way, we see what the camera captured in 3D.

Using Canon's EOS VR Utility , we process the raw images into 8192x4096px equirectangular images, which maps the surface of a spherical image onto a flat image. The processing software also masks out areas of the image that can't comfortably be viewed in 3D, such as the nearby view of the other lens.

Using popular 3D graphics library Three.js , we project each half of those equirectangular images to the inside of their own half-spheres. We then position those spheres in front of the virtual camera. The left eye will see the left image mapped to one sphere, and the right eye will see the right image mapped to a different sphere in the same position.

Immersive Audio Capture

Using a Zoom H2n , I captured Ambisonic B-format audio along with some of these photos. This audio is processed and played back using the AmbisonicsJS library . If you wear stereo headphones while listening to this audio, it will sound like the audio's source is coming from a location in three-dimensional space.

There's something very special and unique about pairing a still photograph with spatial audio. I'm working with a relatively young medium where there are few rules. Here's what I've learned to be important while capturing spatial audio for these immersive galleries:

  • To maintain the illusion of presence in the real world, it's critical to capture audio from the same location, orientation, and time as the original photograph.
  • Capture audio for at least 30 seconds.
  • As with capturing audio more generally, it's important to maintain similar perceived loudness between individual captures. Large jumps in volume between captures can be uncomfortable for viewers.
  • Avoid signal impulses by adding a very short fade-in to the beginning of each audio clip, and a very short fade-out to the end of each audio clip.

I'm very grateful for my time working at High Fidelity , where virtual reality and spatial audio were core parts of our technology. This immersive gallery is a culmination of so much of my previous experiences working in tech.

Using This Immersive Gallery

There are two ways to view the images in this gallery:

  1. In three dimensions, using a VR headset like Meta Quest 3 or Valve Index, rotating your head to look around
  2. In two dimensions, on your computer or phone screen, using your mouse or finger to pan around

If you have a VR headset, and you're running the necessary software, you'll see an "Enter VR" button at the bottom of each image.

If you click that button and put on your headset, you'll see the photos in 3D. You can use the buttons to your left and right to move between images. The red button behind you will exit VR mode.

If you're one of the people out there with a VR setup capable of viewing these images, I'd love to hear about your experience. Contact me, and let's chat.

Beneath each image, you can see the technical EXIF data associated with the image, as well as a map of where I captured that photo.

Thank you for being here. I hope it feels like you are exploring the world with me. 🥰

The Zach Fox Photography logo looks like a fox in the shape of a camera's aperture

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