Ryan Sullivan

New Hampshire

Programmer by profession. Geek by heart.

PictureWindow - Origin Story

by Ryan Sullivan, on March 20, 2017

I saw a couple of tweets with people outside of the HMD interacting with the virtual world and had been playing around with mirrors using the Vive Stereo Rendering Toolkit when I had the idea of using the tracked controller


by Ryan Sullivan, on March 19, 2017 - VR & HTC Vive & Unity & PictureWindow

This is a Unity asset that allows you to turn your display (whether that's a monitor, tv, or projected image) into a window that looks into the virtual space from the perspective of a tracked object. Available right here on

Why I think a fully tracked body is required to solve sim-sickness

by Ryan Sullivan, on March 01, 2017 - VR

Note: So I started this post months ago and never finished it, but I still think it's true and some of my predictions have even come to fruition, so I figured I might as well brain dump the rest and let you read it. This is a thought I have had for a while now that was increasingly reinforced with

Monitor build

by Ryan Sullivan, on June 06, 2016

It's been a bit since my last post so before I get to the main content I wanted to assure everyone that when not doing life stuff I've been slowly picking away at RIPmotion. May weddings anyone? Just over a week ago (wow, seriously?) I was able to demo a new version of it at the Boston VR Meetup. I

Well that was unexpected...

by Ryan Sullivan, on May 15, 2016 - Unity & VR & WiiFit & Running In Place & Locomotion & HTC Vive

When I made and posted my RIPmotion video a few weeks ago I was hoping I would get a handful of people to try it and maybe one or two nuggets of feedback that I would find helpful. Instead what I got was completely overwhelming. I spent several hours one night just compiling all of the interesting bits. I got

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