---
title: Virtual Expo Pt 2
description: Third iteration on making a virtual expo, this time starting with a massive matterport scan of a real life conference center with some parts of it completely remodeled.
image: https://xrdevlog.com/img/conf2.jpg
robots: index, follow
lang: en
dir: ltr
breaks: true
disqus: xrdevlog
---

# Virtual Expo Pt.2

{%hackmd theme-dark %}

Originally published February 2019

###### tags: `devlog` `janus` `expo`

:back: [**Link to Part 1**](https://hackmd.io/@xr/conf)

**Designing virtual conferences from the ground up using digital twins.**


---

There's a massive matterport scan of a conference center in Munich, Germany that is freely available on the internet if you know where to look.


I've taken this scan to build a proof of concept workflow for planning, production, and archiving events that can take place in *mixed reality*.

<p align="center"><iframe width="100%" height="400" src="https://my.matterport.com/show/?m=eh1MbMR14xC" frameborder="0" allowfullscreen allow="vr"></iframe></p>

We can streamline the event planning process by scanning the venue before something like a conference takes place. According to [The VR Fund](http://thevrfund.com/) there already has been nearly 100 major VR/AR conferences and tradeshows this year (2018) and none of them have really utilized the power of the immersive web even though they all have websites.

<https://docs.google.com/spreadsheets/d/1CUIyENeVj7ZTvVu4d09-UySnNv8BJsVQHAsoAEivFJk/edit#gid=1275299319>

Our ability to recall the value from the conference afterwords quickly gets diminished over time; many of the presentations and digital pictures/files get scattered into the winds of social media afterwords while conversations and business cards might lose their value in a week.

Here's a quick tour of the conference center scan, optimized after FireFoxG started 3D modeling parts of it:


The original conference scan was massive 528,000 triangles with 357 textures at 2k resolution. I was able to optimize it to ~402,000 triangles and 5 4k resolution textures.


The files were then handed over to Firefoxg who optimized the model even further down to 150,000 triangles with 4 4k resolution textures.


The biggest gains in optimization happened with the remodeling of the main speaker rooms which went from 202k triangles down to 33k.








***

All of the walls that were previously complicated meshes from the matterport scan have been flattened into quads, reducing the final triangle count from **528k to 25k.**


When flattening the walls, there were some artifacts left in the scene when quads didn't quite line up. Using Vesta's positional comment system, it is simple to leave a comment for the 3D modeler to quickly teleport to and see what areas to focus on.


### Inventory

Use these links to drag in drop in a sandbox world.

- [Cardboard business people](https://imgur.com/a/BR7n7s9)
- [Vending kit](https://vendingkit.glitch.com)
- [Vendor kit](https://vendorkit.glitch.com)
- [Podium](https://vesta.janusvr.com/files/bepis/obj/podium/podium.obj.gz)
- [1 meter grid](https://i.imgur.com/kDu6l3H.png)

***

UVmaps you can use to change the posters on the walls inside the expo.

](https://i.imgur.com/mW8p8iw.png)

](https://i.imgur.com/gdkM0Ou.png)

### Planning Stage

The model and an html file with some janus markup was uploaded to a webserver so that we can view and edit the world online.

{%youtube _-D4elpwniY %}
Watch on Youtube: https://youtu.be/_-D4elpwniY

***

<p align="center"><iframe width="100%" height="400" src="https://vesta.janusvr.com/bepis/icm/embed" frameborder="0" allowfullscreen></iframe></p>

### Cross-Platform

**VRchat**






[Link to world (old)](https://vrchat.net/home/launch?worldId=wrld_7b67ebd3-5583-433a-b614-108be56e357c)

***

**JanusVR**






<hr>

**Update** 2/4/19






[Link to demo](https://vesta.janusvr.com/bepis/expo/map)

---

**Update** [2/19/19]



Floating around the conference center, the placeholder booths we setup help us plan space.

Gunters Universe, a VRchat talkshow, playing in WebVR

### Use cases

Virtual Presentations [Lab Day 2018](https://s.kool.world/vid/labday/)

](https://i.imgur.com/h6zS8dZ.jpg)



### Future

Virtual reality burning man in space

<p align="center"><iframe width="100%" height="400" src="https://vesta.janusvr.com/firefoxg/apollo-17-with-eiffel-tower-for-scale/embed" frameborder="0" allowfullscreen></iframe></p>

<p align="center"><iframe width="100%" height="400" src="https://vesta.janusvr.com/firefoxg/the-mountains-of-mars/embed" frameborder="0" allowfullscreen></iframe></p>

- High Fidelity map port
- Templates for vendors
- NFT avatar skins
- Cryptovoxels presence