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The Surprising Brilliance of ‘Vacation Simulator’s’ VR Paintbrush Tech

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Having released the ever popular Job Simulator as a launch title for the HTC Vive back in 2016, Owlchemy Labs is one of the most veteran VR game studios that exists today. Over the years the studio has built a strong foundation of VR interaction design which is seen throughout their newest title, Vacation Simulator. Interactions which might seem simple and usable to the player are often much more complex than they appear. Case in point: some surprisingly brilliant paintbrush tech that just feels right in VR. Developers from Owlchemy are here to explain how they built it.

Guest Article by Peter Galbraith & Zi Ye

Peter (Implementer of Unityisms) and Zi (Developer, Physics / Math Genius) are both developer/designer dual-wielders at Owlchemy Labs. Their work spans design ideation and prototyping to iteration, programming implementation, and testing.

Both are important contributors to the legacy of absurd and highly VR polished games at Owlchemy Labs, including: award-winning title Job Simulator, Emmy-nominated Rick and Morty: Virtual Rick-ality, and the recently released Vacation Simulator, which is also coming to PSVR and Oculus Quest later this year.

Hey everyone!

Pete and Zi here. We’re both developers at Owlchemy Labs, and we’re excited to talk to you about one of the most highly-iterated features in the entire Vacation Simulator: Painting!

Painting is one of our most colorful activities in the Forest level, a creative space tucked away in a Treehouse where you can unleash your inner artiste. Whether you wield our super-gooey paintbrush to make a masterpiece from scratch or use a photo from the in-game Camera as a starting point, aesthetic greatness is always within reach. However, like all great features, Painting went through several prototypes and iterations before we arrived at our picture-perfect result.

To kick things off, Zi will explain the tech behind the most important part of an artist’s toolkit: the paintbrush!

Simulating the Feel of [PAINTBRUSH]

One of the most challenging aspects of making Painting feel great was the paintbrush tip. As our single, powerful tool to express your creative vision in Painting, we knew it was necessary to address the expectations that come with having a paintbrush in VR, all the way down to its most technical nitty-gritty.

Like all the best features in our games, the squishy brush tip was created using fake, made-up physics! We start with a mathematical model consisting of a straight line that we shoot at the canvas, and then we figure out where the tip would bend along the surface. That bent line is used to manipulate the shape of the brush, like so:

This helped us solve one of the biggest issues we had with painting in VR: lack of feedback. With current VR hardware, we can’t accurately simulate the feedback of a flexible brush pressing against canvas. Without this feedback, we found it was difficult for players to tell if the brush was making contact, causing them to put the brush too far into the canvas and creating jittery or hiccupy motions as the brush collided with the painting easel. This behavior led to a lot of ‘squiggly lines’ and often caused the brush to break out of players’ hands entirely from excessive collisions—not exactly something that made our players feel like art pros!

By providing visual feedback in the form of the squishy tip, fewer players pushed the brush as far into the canvas, making for fewer breakouts and prettier lines. We also paired this with an auto-respawn if the brush did break out of a player’s hand, making it both more likely the player kept hold of their brush and easier to grab again if they didn’t.

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But again: it’s all fake! The brush hair doesn’t actually collide in the physics system except at the very base. The squishing action creates the illusion of resistance and tricks the player into thinking the brush is being pushed back.

We also use the same mathematical model to determine the size of the contact area of the brush and control the size of the paint dob applied to the canvas. This specific feature allowed us to ship with a single brush size, just with variable stroke width: lightly touch for a thin precise line or swab on the colors with a firmer pass.

The brush also factors in ‘hair stiffness’, which determines how the brush hair changes direction when it’s dragged on the canvas or when the brush handle is rotated. The stiffness is also used to add a bit of jiggle to the brush hair when it’s not in contact with the canvas. These little details let us get a super ‘gooey’ feel for the brush, and from our very first playtest it was clear that folks really responded to that perceived sensation.

The squishy brush solved many technical and UX issues, and it also played into that initial desire to empower players to create beautiful art. We had several devs that were convinced they “weren’t artists,” yet when put in front of the new painting easel made things like this:

The calligraphic size changes of the brush tip combined with our artist’s hand-picked palette let everyone create images that looked painterly and fun. Voila!

Now, as the first developer to put down code on Painting, Pete’s going to share our design process behind the feature (including its many iterations!):

Design Challenges: Back to the Drawing Board!

Every feature in Vacation Simulator started from the same series of questions:

  • What do people expect when they vacation at a given destination?
  • How would Bots hilariously misinterpret this activity?

We knew sketching, painting, and artistry were fun aspects of going out into nature, and when we thought about how Bots would misinterpret painting, manipulating photos instantly came to mind. We loved the idea of editing the photos you took around the island and customizing them to express yourself as a player. That simple idea was the seed for a feature that took over a year to design and bring to life.

Job Simulator (2016)

Part of our early design ideas were influenced by what we’d previously made for Job Simulator (e.g. painting the sign in the Auto Mechanic; the painting software on the Office computer). Both were simple and fun, but not very deep. Painting in Vacation Simulator had to feel different—and bigger—to match the rest of the game. We wanted to give players more than just increased pixel density—you should be able to feel like you’re actually painting. Like real life, only better.

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Many works of art require revisions to turn ‘meh’ into a masterpiece, and Painting was no exception. It was one of the earliest features we developed for the Forest and one we continued working on right up until launch! Here are a few examples of Painting experiments and iterations on the feature:

‘Photoshopping’ Only

At the very beginning, Painting only involved photos. Players would place a photo on the easel and then use the paintbrush to ‘paint’ the photo onto the canvas. Players could mix and match, combining bots or scenery from multiple photos, and even (if they got clever) take closeup photos of specific colors to paint with. The more people played, the more we realized that actual painting—complete with swatches of colored paints—drastically increased players’ ability to be creative.

Filters

Filters are a common element in photo manipulation software, so of course we thought the Bots would include them in their misinterpretation. We experimented with buttons to apply filters: pixelation, invert colors, black and white, and sepia. Pressing any of these filter buttons would stack effects, and the next stroke of the brush would apply the filtered image to the canvas. While interesting, filters often lead to frustration as players struggled to anticipate what would actually appear on the canvas as they painted. For example, with inversion, if you dipped your brush in the orange swatch, your brush would paint blue! We wound up removing filters from the easel entirely, instead integrating them into your camera as lenses. All the cool effects with none of the confusion!

Paint ‘Bucket’

Our biggest feedback from early playtests was the ability to start with background colors that weren’t white, and the option to erase paintings entirely. By adding a paint bucket slider that wiped a solid color across the canvas, along with a white paint option, we resolved both of those needs with a single feature. As a surprise benefit, it also enabled the creation of more… Bot-like paintings.

Blending & Transparency

The paint bucket used hard edges, but when looking at those same hard edges on the brush, it just didn’t feel realistic—or look that great. Jagged pixels definitely aren’t part of most real life paintings. For a more realistic effect, we created a transparency gradient representing the amount of paint to apply to the canvas. Used in conjunction with the size and position of the contact area, we could determine how much the paint color blends with whatever is beneath it. The longer the brush is in contact with the canvas, the more color is applied, allowing us to simulate how real brushes transfer pigment to fabric.

Multiple Brushes

We went through several iterations of brushes and brush sizes. Before the paint bucket slider, players wanted a giant brush to make things easier to fill. Then, after we implemented the slider, players wanted a smaller paintbrush for detail work. We had a smaller paintbrush for a long time, but ultimately cut it due to one of the most important gamefeel features of Painting: the squishy tip!

– – — – –

We Hope You [EMOTION] Painting!

Sometimes there’s just no way around the amount of iteration it takes to make something look, feel, and play the way you want. Painting was a momentous exercise in VR design affordances, player expectations, and utilizing constraints for the most creativity.

Thanks for checking out this peek behind the scenes of Painting! We hope you’re inspired to channel your inner Leonardo BotVinci in Vacation Simulator.


Read more guest articles contributed by experts and insiders in AR and VR.

The post The Surprising Brilliance of ‘Vacation Simulator’s’ VR Paintbrush Tech appeared first on Road to VR.

Source: https://www.roadtovr.com/vacation-simulator-virtual-reality-paintbrush-design/

Blockchain

Bullish? On-Exchange Bitcoin Declines While Whales Accumulate (Report)

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A recent report suggests that the amount of Bitcoin stored on exchanges is declining while BTC whales increase their holdings and that’s bullish for Bitcoin’s price.

The paper also highlighted that investors have a much larger time horizon for their holdings now compared to previous years.

Bitcoin Stored On Exchanges Drop

In its latest report shared with CryptoPotato on Bitcoin investors’ behavior, the popular research company Digital Delphi explored the number of bitcoins stored on cryptocurrency exchanges. The document indicated that if the BTC stock on platforms increases, it could put sell pressure.

However, this isn’t necessarily the case during bull runs, as retail investors often “leave BTC on exchanges and traders use BTC as margin collateral.” Alternatively, in case the asset price rises while the stock on exchange decreases, this typically implies an accumulation trend.

The report indicated that Bitcoin stored on exchanges marked an all-time high of 2.96 million in mid-February. Since then, the trend has reversed, and the number has dropped to below 2.6 million.

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Bitcoin Price/Bitcoin Stock On Exchanges. Source: DigitalDelphi
Bitcoin Price/Bitcoin Stock On Exchanges. Source: DigitalDelphi

Digital Delphi argued that the reason behind this decrease of BTC on exchanges is because investors are most likely preparing for a longer-term holding period. More importantly, though, the paper highlighted a substantial decline in speculative trading interest in Bitcoin, while the HODLing mentality has increased.

“Unlike the 2019 price uptrend, which coincided with BTC stock increasing, this current trend has seen a divergence between BTC stock and price. This suggests a more sustainable move upwards for BTC, in comparison to that of 2019, as data indicates a holder base with longer time horizons.”

Bitcoin Whales Haven’t Slowed Down Accumulating

Digital Delphi’s data reaffirmed previous reports that Bitcoin whales, meaning addresses containing between 1,000 and 10,000 BTC, continue to accumulate large portions. The company outlined that whales have been on a shopping spree since the start of 2020, as their holdings have increased by 9% YTD.

Moreover, the US Federal Reserve’s actions to print extensive amounts of dollars since the start of the COVID-19 pandemic have accelerated whales’ accumulations.

“Since the USD M2 supply expansion in March, there has been a 7% increase in whale holdings.”

According to the document, this only emphasizes the narrative that Bitcoin serves as a hedge against dollar inflation, and “the smart money is clearly betting on this.” It’s worth noting that prominent US investor Paul Tudor Jones III purchased BTC earlier this year to protect himself against precisely the rising inflation.

Bitcoin Whales HODLing. Source: DigitalDelphi
Bitcoin Whales HODLing. Source: DigitalDelphi
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Source: https://cryptopotato.com/bullish-on-exchange-bitcoin-declines-while-whales-accumulate-report/

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US Crypto Tax Avoiders Beware: The IRS Updates 1040 Tax Form

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The Internal Revenue Service (IRS) seems to have found a way to block crypto tax evasion, following an update of its tax form.

IRS: No Excuses for Crypto Traders

According to the Wall Street Journal on Friday (September 25, 2020), the IRS is planning to alter its 1040 tax form. The revised tax form will see cryptocurrency holders give a straight answer about their crypto activities.

The IRS has been relentlessly pursuing crypto investors to disclose transactions, as it suspects that many taxpayers were guilty of tax evasion. However, the tax administrator looks like it has found a way to make all Bitcoin holders accountable.

Presently, the tax form will mandate crypto traders to answer a” yes or no” to the following question:

“At any time during 2020, did you receive, sell, send, exchange or otherwise acquire any financial interest in any virtual currency?”

What makes the update interesting is the placement of the above question. Prior to the revised tax form, the question appeared in a section where taxpayers were not mandated to fill the answer. However, the question’s position in the altered tax form just below the taxpayer’s name and address leaves no room for excuses or oversight on the part of the crypto trader.

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Reacting to the altered form of 1040 was Ed Zollars:

“This placement is unprecedented and will make it easier for the IRS to win cases against taxpayers who check ‘No’ when they should check ‘Yes”

There have been complaints in the past about the lack of a robust regulatory framework for crypto tax filings. In October 2019, the IRS published new tax guidelines that would supposedly make it easier for crypto investors to file taxes. The U.S. tax agency also sent reminder letters to crypto holders. Earlier in September, the IRS announced a payment of $625,000 to anyone who could crack Monero and Bitcoin’s lightning network.

us_irs_tax
US 1040 tax form.

Governments Keen on Crypto Taxation

While the IRS seems to have devised a means to trap crypto holders, more countries are introducing crypto tax laws and clamping down on offenders.

As reported by CryptoPotato in April, Spain’s tax administrator sent out notices to 66,000 crypto investors, as against the 14,000 notices sent in 2019. South Korea, on the other hand, has been unsteady about taxing cryptocurrency.

Earlier in 2020, South Korea’s Ministry of Finance and Strategy revealed that there were no intentions to tax crypto profits. However, reports emerged that the Ministry was considering imposing a 20% tax on profits from crypto trading. In June, the country’s Finance Minister called for the imposition of tax on cryptocurrency trading gains.

Australia’s tax agency, the Australian Taxation Office (ATO), sent out reminders to 350,000 crypto traders in March about their tax obligations. According to the ATO, crypto investors were to keep a comprehensive record of their trading activities for ease of tax payment.

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Source: https://cryptopotato.com/us-crypto-tax-avoiders-beware-the-irs-updates-1040-tax-form/

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Chinese State Media Report: Cryptocurrencies Are The Best-Performing Assets Of 2020

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Although China still categorizes Bitcoin and other cryptocurrencies as illegal, several state-owned media outlets purportedly ran reports describing them as the best-performing assets since the start of the year.

Bitcoin And Crypto Run On Chinese Media

A popular state-owned media under the name Xinhua News Agency set the tone yesterday by citing a Bloomberg report titled “crypto is beating gold as 2020’s top asset so far.” Apart from summarizing Bloomberg’s narrative, Xinhua added that cryptocurrencies are “decentralized financial instruments” and concluded that they have become “the best performing asset class this year.”

Another digital asset coverage followed today on China Central Television (CCTV) – among the most popular broadcasting services in the nation. In a three-minute-long video clip, CCTV spoke about cryptocurrencies and emphasized on their year-to-date performance. More specifically, the clip focused on their 70% price increase this year.

According to a popular cryptocurrency commentator Dovey Wan, this “interesting propaganda” spread out among other outlets, being featured on all “avenues, newspapers, online media, and TV.” The advertised narrative was the same – that digital assets have been outperforming all other investment instruments.

Binance CEO Changpeng Zhao commented that people might not understand the significance behind this coverage, but “it is big.”

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cz_binance-min
CZ, CEO of Binance

However, Wan raised a compelling question – what’s the real intention behind this move? After all, cryptocurrencies remain banned for official usage within the world’s most populated nation. She speculated that this coverage might have something to do with the Chinese central bank digital currency that’s reportedly being tested.

China Behind The Price Pump?

As CryptoPotato reported earlier today, green dominated the cryptocurrency field with the total market cap increasing by about $20 billion since yesterday.

Historically, news and announcements from China have undoubtedly impacted prices. As such, it wouldn’t be a surprise that the two-day media coverage promoting cryptocurrencies as the best-performing assets in 2020 has affected the market to some extent.

In late 2019, President Xi Jinping urged the country to accelerate its blockchain adoption. In the next few hours, the cryptocurrency field experienced some of its most impressive price pumps in history. Bitcoin alone skyrocketed by 42% in hours.

Less than a month later, country officials clarified that being pro-blockchain didn’t mean a positive attitude on cryptocurrencies. After reaffirming that digital assets are still illegal, their value plummeted in response.

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Source: https://cryptopotato.com/chinese-state-media-report-cryptocurrencies-are-the-best-performing-assets-of-2020/

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