About
XR artist, director, and educator — MFA in Media Arts (University of Montana, 2025).
Professional Experience
- 2021–Present
Agile Lens
XR Consultant / Motion Capture QA Specialist / UX QA Lead
Led QA for motion and facial capture for expressive realism using Rokoko, xsenz, Unreal Engine Live Link Face, and Quest Pro with Metahuman avatars. Provided real-time acting, UI/UX consulting, and structured quality review for XR productions.
- 2022–2024
Raptor XR Studio
Founder & Creative Director / Interactive Narrative Designer
Created award-winning interactive XR experiences testing AI NPCs with live actors; wrote and directed productions presented at international film festivals. Fine-tuned LLaMA 2 with QLoRA using PEFT via Axolotl, incorporating player and NPC performance feedback.
- 2022–2023
Flipside XR
Community Manager / Avatar Rigging QA / Gameplay UX QA Analyst
Oversaw community engagement and performance-based QA for XR content creation platform. Ran QA analysis and created tutorials for translating emotions into inverse-kinematics and viseme blendshapes.
- 2020–2022
Active Replica
Immersive Designer / Interactive Narrative Specialist / Artist in Residence
Designed and led live VR events specializing in engagement, world design, and UX. Delivered structured interaction flow feedback to improve participant experience and platform quality.
- 2019–2021
Adventure Lab
Gameplay QA / UX QA Analyst / Script Consultant / Live Ops Tester
Built UI and authored interactive scripting for a VR/Film/Theater/Gaming hybrid platform. Trained immersive actors and designed live player/NPC encounters; conducted structured gameplay and UX QA.
- 2018–2019
Thera VR
Game Environment Designer / Technical Lead / Interactive UX Design
Built clinician-guided VR software for therapeutic sessions; translated behavioral goals into structured interaction cues and environment logic. Created spatial storytelling environments with empathic design for sessions with live therapists and patients.
- 2017–2018
River Studios
Creative Producer / Immersive Designer / Interactive Narrative Design
Coordinated schedules, deliverables, and post workflows for 360 video and spatial media productions. Managed MR/VR/AR content production, live performance integration, and immersive installations.
- 2017–2018
High Fidelity
Immersive System Designer / QA Tester / Interactive Narrative Design
Built creator tools and immersive narrative systems; designed worlds as server-scale load QA tests for performance validation.
- 2014–2018
Raktor
CEO & Co-Founder / Product Lead / Design Lead
Co-founded and led development of mixed reality software for livestream and interactive XR/MR content. Directed engineering, design, and QA roadmaps; set production milestones across iterative releases.
- 2016–2019
Vau de Vire Society
Lead Performer / Writer / Immersive Interactive Narrative Designer
Created character-driven audience beats and coordinated mixed-media cues for large-scale immersive theater productions.
- 2012–2016
Fou Fou Ha
Lead Performer / Co-Director / Projection & Interactive Media Designer
Co-directed internationally touring queer theater and festival-scale installations integrating interactive projected environments and audience interaction systems.
- 2008–2012
New Eccentrics
Designer / Director / Producer
Directed and designed touring theatre and immersive events integrating analog and digital techniques.
- 2006–2007
Flying Karamazov Brothers
Actor
Performer for regional, touring, and off-Broadway productions.
Teaching Experience
- 2023–2025
University of Montana
Adjunct Instructor, Media Arts / Acting
Taught acting and voice with emphasis on emotional nuance and expressive clarity for screen and immersive media.
- 2022
York University
Adjunct Lecturer, Immersive Theater for Spatial Technology
Taught spatial storytelling and interactive narrative design for audience interaction and real-time iteration from user feedback.
- 2022, 2023
Performance + XR IBPOC Fellowship
Immersive Storytelling Lead Mentor
- 2021
West Kowloon Cultural District Authority / University of Leeds
VR Lead Instructor
- 2022
NYU Tisch
Guest Instructor, Immersive & Interactive VR Performance & Design
- 2021, 2022
Chapman University
Guest Lecturer, Immersive VR Storytelling
- 2021
Brooklyn College
Guest Lecturer, Directing for Virtual Reality
Education
- 2023–2025
MFA, Media Arts
University of Montana
Thesis: "AI Pipelines for Immersive Design." Fine-tuned an SDXL checkpoint with kohya_ss using custom tokens and a SDXL-Turbo LoRA for a real-time TouchDesigner interactive installation; converted images into 3D assets for immersive world design; trained a WAN 2.1 character LoRA for video instruction delivery in a live installation.
- 2000–2004
BA, Theatre and Performance, Multimedia
Bard College
Published Papers
- 2025
- 2022
Selected Recognition
- 2025
Best Immersive Theatre — Nominee
Raindance Film Festival
- 2023
Best Performance — Winner
FIVARS International Film Festival
- 2022
Discovery Award: Best Debut — Honorable Mention
Raindance Film Festival
- 2022
Best Immersive Performance — Nominee
Raindance Film Festival
- 2022
Event of the Year — Nominee
Polys WebXR Awards
- 2021
Best VR/App/Video Game — Winner
Bullseye Awards
- 2021
Interaction Award — Winner
Aurea Awards
- 2020
Best Multiplayer Experience — Winner
Raindance Film Festival
- 2020
Outstanding Achievement in Design — Winner
Raindance Film Festival
- 2020
Innovation Award — Nominee
Producers Guild of America
- 2020
Outstanding Achievement in Escape Gaming — Winner
No Proscenium
- 2018
Best Multiplatform XR Game — Winner
Microsoft WebXR Hackathon
Conference Presentations & Workshops
- 2025
Multi-Avatar Performance and Self-Monitoring in VR
SIGGRAPH
- 2025
Building and Breaking XR Performances
Worlds in Play
- 2025
WebXR for Higher Education, Residencies, Workshops and Theater
iLRN
- 2024
XR Acting Techniques for Live Facial and Motion Capture
PSI Conference
- 2024
Immersive Interactive Narrative Techniques in XR
IMX Conference
- 2022
Embodied Empathy in WebXR
Performance and XR Conference
- 2021–2022
Creating XR Performances in the Metaverse (presentation and workshop)
VRTO
- 2020
Digital Tools for Remote Performance
Theater Communications Group
- 2020
Making a Virtual Adventure: A VR Master Class
Raindance Film Festival
- 2019
History of Immersive Technology
Centre for Immersive Technology, Leeds University
- 2018
Breaking the 5th Wall — Keynote
Visual Media Conference
Outreach & Volunteering
- Ongoing
New Old Time Chautauqua
- Ongoing
Clowns Without Borders
- Ongoing
Gesundheit!
Contact
- Email riel.tarr@gmail.com
- Alt email ari.tarr@umt.edu
- Phone (510) 332-0913