360 VR - 360 VR Video - 360 Video Software -

Naming discrepancies aside, the concept remains the same - using computer technology to create a simulated, three-dimensional world that a user can manipulate and explore while feeling as if he were in that world. Scientists, theorists and engineers have designed dozens of devices and applications to achieve this goal. Opinions differ on what exactly constitutes a true VR experience, but in general it should include: https://www.youtube.com/watch?v=5Ucy2-Eh-Ns&t=1s

Samsung’s approach to VR was different right from the beginning, and the Gear VR was an impressive piece of tech when it was first released in November of 2015. The Gear VR was a far more common sight than an Oculus Rift or HTC Vive in 2016 and 2017, largely because Samsung often gave the device away free with the purchase of a Samsung Galaxy smartphone. Samsung’s VR HMD delivers a stripped-down VR experience, using Oculus head-tracking technology in combination with Android smartphones to power mobile VR experiences. Instead of dedicated display technology, lenses allow the phone’s screen to act as a stereoscopic display, making the device simpler and less expensive than other options. Samsung has added hand controllers to the Gear VR experience, bringing it more in line with current VR content.
Like the Go, you'll need the companion app on your smartphone to set the headset and the controllers up, but it doesn't take very long at all to do. Then you can start downloading apps, games and experiences from the app or through the headset and there's familiar titles here that have already popped up on the pricier Rift. So, Beat Saber, Thumper, Space Pirate Trainer, and Creed: Rise to Glory all make the cut. https://www.youtube.com/watch?v=_zUCMfYkgj0&t=1s

This may seems like a lot of effort, and it is! What makes the development of virtual reality worthwhile? The potential entertainment value is clear. Immersive films and video games are good examples. The entertainment industry is after all a multi-billion dollar one and consumers are always keen on novelty. Virtual reality has many other, more serious, applications as well. https://www.youtube.com/watch?v=5szCIv22-qE&t=1s
The definition of virtual reality comes, naturally, from the definitions for both ‘virtual’ and ‘reality’. The definition of ‘virtual’ is near and reality is what we experience as human beings. So the term ‘virtual reality’ basically means ‘near-reality’. This could, of course, mean anything but it usually refers to a specific type of reality emulation. https://www.youtube.com/watch?v=A9Wvl32W_As&t=1s

The Virtual Reality Modelling Language (VRML), first introduced in 1994, was intended for the development of "virtual worlds" without dependency on headsets.[43] The Web3D consortium was subsequently founded in 1997 for the development of industry standards for web-based 3D graphics. The consortium subsequently developed X3D from the VRML framework as an archival, open-source standard for web-based distribution of VR content.[44] WebVR is an experimental JavaScript application programming interface (API) that provides support for various virtual reality devices, such as the HTC Vive, Oculus Rift, Google Cardboard or OSVR, in a web browser.[45] https://www.youtube.com/watch?v=_gt4lhlfqjc&t=1s
Virtual reality (VR) is an experience taking place within simulated and immersive environments that can be similar to or completely different from the real world. Applications of virtual reality can include entertainment (i.e. gaming) and educational purposes (i.e. medical or military training). Other, distinct types of VR style technology include augmented reality and mixed reality. https://www.aliexpress.com/item/SVPRO-new-design-3d-video-camera-virtual-reality-dual-hd-android-smart-phone-mobile-phone-camera/32764347423.html
There remains a significant amount of confusion about the differences between Virtual Reality, Augmented Reality and Mixed Reality. (Check out our exhaustive primers on Augmented Reality and Mixed Reality for an in-depth look at the differences.) The public seems to think that AR is a phone experience, while only VR requires an HMD. Mixed Reality devices like the Microsoft Hololens use a headset to overlay 3D imagery on top of the real world. Very cool, but not Virtual Reality.
Bottom line, if you're looking for a VR experience that's closer to the Rift and the Vive without the big price tag and the setup, this is the one you want. The room tracking is fantastic, the controllers are the best we've used and while it won't play all of the top end Rift games, there's a good collection of games and experiences to try out already that will hopefully grow over the coming months. https://www.aliexpress.com/item/360-Action-Camera-Panoramic-Ultra-HD-360-Camara-Deportiva-Wifi-Sport-Cam-Driving-VR-Camera/32773401861.html
The Oculus Rift was the first big name in the current wave of VR, and Oculus is still a major player. The Rift S has a higher resolution than the Vive (but not as high as the Vive Pro or, strangely, the Oculus Quest) and newer and lighter Oculus Touch motion controllers, and doesn't need external sensors to work. It does, however, need DisplayPort; if your PC only has an HDMI output, you might want to hunt for the previous Rift and deal with the extra cables. https://www.youtube.com/watch?v=LU6r78pDLDw&t=1s
Vive's Tracker might not look like much, but stick it on something and that "thing" becomes a controller. Yes, HTC is redefining how we think of mixed reality with this accessory, and now anyone can buy one. Developers have been busily finding exciting and unique ways to use the Tracker in games, which will require mounts for certain props, like guns and baseball bats. https://www.aliexpress.com/item/Panoramic-HD-VR-Camera-Mini-4K-Camera-360-Camera-2-0Inch-LCD-Screen-Video-Sport-Action/32922048060.html
Bottom line, if you're looking for a VR experience that's closer to the Rift and the Vive without the big price tag and the setup, this is the one you want. The room tracking is fantastic, the controllers are the best we've used and while it won't play all of the top end Rift games, there's a good collection of games and experiences to try out already that will hopefully grow over the coming months. https://www.youtube.com/watch?v=8QDXfgbKKf0&t=1s

Modern VR headsets now fit under one of three categories: Mobile, tethered, or standalone. Mobile headsets are shells with lenses into which you place your smartphone. The lenses separate the screen into two images for your eyes, turning your smartphone into a VR device. Mobile headsets like the Samsung Gear VR and the Google Daydream View are relatively inexpensive at around $100, and because all of the processing is done on your phone, you don't need to connect any wires to the headset. https://www.youtube.com/watch?v=iaGLup9JNuU&t=1s
The Vive Pro sports a 2,880 x 1,600 resolution on a dual-OLED display, up from the Vive's 2,160 x 1,200 resolution. There's also dual cameras on the front that'll help track your hands and a 90Hz refresh rate with 70 sensors, giving you 360-degree head-tracking. It's not a leap to say that the Vive Pro is a monster. This is easily the most advanced VR headset out there, but it's also incredibly expensive, sitting at £799. If you don't need that added clarity, the Vive has all the same tricks. https://www.youtube.com/watch?v=ywfauCOzgoE&t=1s
Tethered headsets like the Oculus Rift S, the HTC Vive, and the PlayStation VR are physically connected to PCs (or in the case of the PS VR, a PlayStation 4). The cable makes them a bit unwieldy, but putting all of the actual video processing in a box you don't need to directly strap to your face means your VR experience can be a lot more complex. The use of a dedicated display in the headset instead of your smartphone drastically improves image fidelity, and either external sensors or outward-facing cameras on the headset provide full 6DOF movement tracking. https://www.aliexpress.com/item/Drifter-For-Insta360-ONE-X/32947447669.html
In projector-based virtual reality, modeling of the real environment plays a vital role in various virtual reality applications, such as robot navigation, construction modeling, and airplane simulation. Image-based virtual reality system has been gaining popularity in computer graphics and computer vision communities. In generating realistic models, it is essential to accurately register acquired 3D data; usually, camera is used for modeling small objects at a short distance. https://www.youtube.com/watch?v=_I8_-u9xAeo&t=1s
In 2014, Sony announced Project Morpheus (its code name for the PlayStation VR), a virtual reality headset for the PlayStation 4 video game console.[37] In 2015, Google announced Cardboard, a do-it-yourself stereoscopic viewer: the user places their smartphone in the cardboard holder, which they wear on their head. Michael Naimark was appointed Google's first-ever 'resident artist' in their new VR division. The Kickstarter campaign for Gloveone, a pair of gloves providing motion tracking and haptic feedback, was successfully funded, with over $150,000 in contributions.[38] Also in 2015, Razer unveiled its open source project OSVR. https://www.youtube.com/watch?v=ecajlIKwlCg&t=1s
The NBA has long been interested in virtual reality and 360 filmmaking, so it's no surprise that it would decide to take one of the most exciting events on All Star Weekend, the Dunk Contest, and turn it into a 360 video. In this case, you'll get to see all the dunks of winner Donovan Mitchell. Sit courtside as this mountain of a man charges to the hoop and seemingly defies the laws of physics.
In medicine, simulated VR surgical environments under the supervision of experts can provide effective and repeatable training at a low cost, allowing trainees to recognize and amend errors as they occur.[53] Virtual reality has been used in physical rehabilitation since the 2000s. Despite numerous studies conducted, good quality evidence of its efficacy compared to other rehabilitation methods without sophisticated and expensive equipment is lacking for the treatment of Parkinson's disease.[54] A 2018 review on the effectiveness of mirror therapy by virtual reality and robotics for any type of pathology concluded in a similar way.[55] Another study was conducted that showed the potential for VR to promote mimicry and revealed the difference between neurotypical and autism spectrum disorder individuals in their response to a two-dimensional avatar.[56] https://www.youtube.com/watch?v=xFxKHrkHuf8&t=1s
Sony’s entry into the market is the lowest powered of the three best-selling VR HMDs, but the PSVR has a big advantage over the Rift and Vive. Because it’s tethered to the Playstation 4 gaming system, there was an enormous, pre-existing user base of 10s of millions of gamers, many of whom were eager to try their hand at VR. Because that user base already had a PS4, Sony’s customers didn’t have to purchase/upgrade their computer hardware, making the PSVR the most “affordable” of the high-end HMDs. As such, the PSVR is the best-selling Virtual Reality HMD on the market, moving over 4 million units since its initial release, and showing that, if nothing else, VR gaming is here to stay. https://www.youtube.com/watch?v=eBO_C_WY41M&t=1s
While they can offer a taste of VR, mobile headsets don't provide the full experience. They tend to offer three-degrees-of-freedom (3DOF) motion tracking, following your direction but not your position. They also only come with one motion controller, which is also 3DOF-only. You don't get the same immersiveness you do with six-degrees-of-freedom (6DOF) motion tracking and dual motion controllers, which might be why Google and Samsung have been largely quiet lately about their mobile headsets. The Nintendo Labo VR Kit is its own unique case, but it's more of a novelty for Switch owners.
From the different headsets we've tested, the hardware is sound and the setup is simple, but position tracking isn't as accurate as tethered headsets with external sensors or the Rift S' new outward-facing tracking cameras. Also, the Windows Mixed Reality store doesn't have as many compelling VR experiences as the Rift and SteamVR stores, though you can use SteamVR games on Windows Mixed Reality headsets, again with some software wrestling. https://www.aliexpress.com/item/AUKEY-360-Degree-Universal-Car-Holder-Magnetic-Air-Vent-Mount-Smartphone-Dock-Mobile-Phone-Holder-for/32580819279.html
Virtual Reality (VR) is the use of computer technology to create a simulated environment. Unlike traditional user interfaces, VR places the user inside an experience. Instead of viewing a screen in front of them, users are immersed and able to interact with 3D worlds. By simulating as many senses as possible, such as vision, hearing, touch, even smell, the computer is transformed into a gatekeeper to this artificial world. The only limits to near-real VR experiences are the availability of content and cheap computing power. https://www.youtube.com/watch?v=PDkC1eebWbU&t=1s
Standalone headsets were at first a useful novelty that offered a taste of VR without an investment into a gaming PC or a flagship phone. The Oculus Go and the Lenovo Mirage Solo are both capable headsets that work well on their own, but they have the same limited controls as mobile headsets. The recently released Oculus Quest, however, has really sold us on this category. The Quest uses similar outward-facing cameras to the new Rift S to provide 6DOF motion tracking, and uses the same Oculus Touch motion controls. Combined with a faster Snapdragon 835 processor compared with the Oculus Go's Snapdragon 821, the Quest offers a much more compelling and immersive VR experience, all without the unwieldy cable or PC requirement of the Rift S. We hope to see more standalone 6DOF, dual motion controller headsets in the future, like the upcoming HTC Vive Focus Plus. https://www.youtube.com/watch?v=FPg89qonG0E&t=1s
The exact origins of virtual reality are disputed, partly because of how difficult it has been to formulate a definition for the concept of an alternative existence.[4] The development of perspective in Renaissance Europe created convincing depictions of spaces that did not exist, in what has been referred to as the "multiplying of artificial worlds".[5] Other elements of virtual reality appeared as early as the 1860s. Antonin Artaud took the view that illusion was not distinct from reality, advocating that spectators at a play should suspend disbelief and regard the drama on stage as reality.[2] The first references to the more modern concept of virtual reality came from science fiction. https://www.youtube.com/watch?v=sU8oSjtZlx4&t=1s
The Fove setup is an 5.7-inch, 1440p display; a 100+ degree field of view; 70fps frame rate; and eye-tracking measured at 120fps. With the redesigned developer kit, gone are the big side panels and quite a lot of the heft of the last prototype design. The company promises the new model offers "dramatically reduced weight, size and overall wearability, as well as better production efficiency." You might have to wait a bit though – Fove hasn't confirmed plans for the consumer version just yet. https://www.youtube.com/watch?v=RCXGpEmFbOw&t=1s
Naming discrepancies aside, the concept remains the same - using computer technology to create a simulated, three-dimensional world that a user can manipulate and explore while feeling as if he were in that world. Scientists, theorists and engineers have designed dozens of devices and applications to achieve this goal. Opinions differ on what exactly constitutes a true VR experience, but in general it should include: https://www.youtube.com/channel/UCokPdW_udDtALG8Rd_u-hdg
The definition of virtual reality comes, naturally, from the definitions for both ‘virtual’ and ‘reality’. The definition of ‘virtual’ is near and reality is what we experience as human beings. So the term ‘virtual reality’ basically means ‘near-reality’. This could, of course, mean anything but it usually refers to a specific type of reality emulation.
Basically, these AR headsets have transparent lenses that let you look at your surroundings, instead of completely replacing your vision with a computer-generated image. They can still project images over whatever you're looking at, but those images are designed to complement and interact with the area around you. You can make a web browser pop up in the middle of a room, for instance, or watch animals run around your coffee table. It's fascinating technology that could hint at the future of computing. https://www.aliexpress.com/item/Roofull-360-Degree-Action-Video-Camera-Wifi-Mini-2448-2448-16MP-Ultra-HD-Panorama-Camera-3D/32703486146.html
In 1999, entrepreneur Philip Rosedale formed Linden Lab with an initial focus on the development of VR hardware. In its earliest form, the company struggled to produce a commercial version of "The Rig", which was realized in prototype form as a clunky steel contraption with several computer monitors that users could wear on their shoulders. The concept was later adapted into the personal computer-based, 3D virtual world program Second Life.[23] https://www.aliexpress.com/item/New-Style-Camera-360-4k-360-degree-Panoramic-VR-Camera-Build-in-WiFi-Mini-Sports-Action/32702459981.html
Like the Go, you'll need the companion app on your smartphone to set the headset and the controllers up, but it doesn't take very long at all to do. Then you can start downloading apps, games and experiences from the app or through the headset and there's familiar titles here that have already popped up on the pricier Rift. So, Beat Saber, Thumper, Space Pirate Trainer, and Creed: Rise to Glory all make the cut. https://www.youtube.com/watch?v=zO2LDn8_44M&t=1s

In social sciences and psychology, virtual reality offers a cost-effective tool to study and replicate interactions in a controlled environment.[50] It can be used as a form of therapeutic intervention. For instance, there is the case of the virtual reality exposure therapy (VRET), a form of exposure therapy for treating anxiety disorders such as post traumatic stress disorder (PTSD) and phobias.[51][52] https://www.aliexpress.com/item/Insta360-ONE-4K-360-VR-Video-Action-Camera-insta-360-Sport-Panoramic-24MP-mini-camcorders-Camera/32880056819.html
Sony’s entry into the market is the lowest powered of the three best-selling VR HMDs, but the PSVR has a big advantage over the Rift and Vive. Because it’s tethered to the Playstation 4 gaming system, there was an enormous, pre-existing user base of 10s of millions of gamers, many of whom were eager to try their hand at VR. Because that user base already had a PS4, Sony’s customers didn’t have to purchase/upgrade their computer hardware, making the PSVR the most “affordable” of the high-end HMDs. As such, the PSVR is the best-selling Virtual Reality HMD on the market, moving over 4 million units since its initial release, and showing that, if nothing else, VR gaming is here to stay. https://www.youtube.com/watch?v=ss9ygQqqL2Q&t=1s

From the different headsets we've tested, the hardware is sound and the setup is simple, but position tracking isn't as accurate as tethered headsets with external sensors or the Rift S' new outward-facing tracking cameras. Also, the Windows Mixed Reality store doesn't have as many compelling VR experiences as the Rift and SteamVR stores, though you can use SteamVR games on Windows Mixed Reality headsets, again with some software wrestling.
Like the Go, you'll need the companion app on your smartphone to set the headset and the controllers up, but it doesn't take very long at all to do. Then you can start downloading apps, games and experiences from the app or through the headset and there's familiar titles here that have already popped up on the pricier Rift. So, Beat Saber, Thumper, Space Pirate Trainer, and Creed: Rise to Glory all make the cut. https://www.youtube.com/watch?v=8COaMKbNrX0&t=1s
Alright, I’m going to walk you through my specific process, although some people may do things in a slightly different order. Let’s jump back to the import. The camera I used records to 2 separate Micro SD cards, so I have to import both. In the “Ingested Footage” folder for that day’s shoot, I put a folder for one card, “Front” and one card, “Back”. Then I use the stitching software and export final stitches for every clip to a third folder I call “Stitched”. Then I dropped each of those stitched files into Adobe After Effects and mask myself, other, gear, and tripod out of the shot. This way I have clean video with only the model in it. I export these as individual files as well.
Augmented reality (AR) is a type of virtual reality technology that blends what the user sees in their real surroundings with digital content generated by computer software. The additional software-generated images with the virtual scene typically enhance how the real surroundings look in some way. AR systems layer virtual information over a camera live feed into a headset or smartglasses or through a mobile device giving the user the ability to view three-dimensional images. https://www.youtube.com/watch?v=JI-ectchft8&t=1s
Although much more time and data intensive, I do foresee 360° and VR as being a growing trend of the future. I think the tools and software will continue to improve and the real world applications will start to become more obvious (i.e. behind-the-scenes where you could actually see everything, car cams so that every angle was captured, real estate videos, etc). I’m excited to continue learning about it and continue shooting on my 360° camera.
By 2016, there have been at least 230 companies developing VR-related products. Amazon, Apple, Facebook, Google, Microsoft, Sony and Samsung all had dedicated AR and VR groups. Dynamic binaural audio was common to most headsets released that year. However, haptic interfaces were not well developed, and most hardware packages incorporated button-operated handsets for touch-based interactivity. Visually, displays were still of a low-enough resolution and frame rate that images were still identifiable as virtual.[39]

One place Microsoft has succeeded in how easy it is to set up its WMR headsets. It uses inside-out tracking, so you won't need to go plug in a bunch of sensors to make sure your headset is being seen. These headsets have built-in cameras and sensors that handle all of that. They'll even track the Windows Mixed Reality controllers, which suffer a bit because they rely on the headset being able to see them clearly to properly track. https://www.youtube.com/watch?v=utx1Op_2kXA&t=1s


However, because the Lighthouse sensors need good vantage points to track all your head and hand movements, it means mounting them up high. This makes setup for the Vive a bit convoluted compared to, say, the Rift or PSVR. For the Rift, you can just plop down the sensors on a desk, though to get the same 360 tracking you'll need to buy an extra sensor (the Touch bundle gets you two). However, when you get Lighthouse all ready the effect is next-level – enough to make using the PlayStation VR or Rift feel like a step back at times.
Special input devices are required for interaction with the virtual world. These include the 3D mouse, the wired glove, motion controllers, and optical tracking sensors. Controllers typically use optical tracking systems (primarily infrared cameras) for location and navigation, so that the user can move freely without wiring. Some input devices provide the user with force feedback to the hands or other parts of the body, so that the human being can orientate himself in the three-dimensional world through haptics and sensor technology as a further sensory sensation and carry out realistic simulations. Additional haptic feedback can be obtained from omnidirectional treadmills (with which walking in virtual space is controlled by real walking movements) and vibration gloves and suits.
Although much more time and data intensive, I do foresee 360° and VR as being a growing trend of the future. I think the tools and software will continue to improve and the real world applications will start to become more obvious (i.e. behind-the-scenes where you could actually see everything, car cams so that every angle was captured, real estate videos, etc). I’m excited to continue learning about it and continue shooting on my 360° camera. https://www.youtube.com/channel/UCt2-_WqSJnmt6lXNGA8RiPg
There are few worse feelings than putting on a VR headset and having someone else's sweat drip down your face. That's why, if you're likely to be sharing your headset with others, we'd recommend some sort of cover. The company VR Cover does exactly what it suggests, selling covers for the Rift, Vive, Gear VR and Windows Mixed Reality headsets. You can get a couple of machine-washable covers or, if you prefer, some cheaper disposable ones.
Virtual reality sickness (also known as cybersickness) occurs when a person's exposure to a virtual environment causes symptoms that are similar to motion sickness symptoms.[82] Women are significantly more affected than men by headset-induced symptoms, at rates of around 77% and 33% respectively.[83][84] The most common symptoms are general discomfort, headache, stomach awareness, nausea, vomiting, pallor, sweating, fatigue, drowsiness, disorientation, and apathy.[85] For example, Nintendo's Virtual Boy received much criticism for its negative physical effects, including "dizziness, nausea, and headaches".[86] These motion sickness symptoms are caused by a disconnect between what is being seen and what the rest of the body perceives. When the vestibular system, the body's internal balancing system, does not experience the motion that it expects from visual input through the eyes, the user may experience VR sickness. This can also happen if the VR system does not have a high enough frame rate, or if there is a lag between the body's movement and the onscreen visual reaction to it.[87] Because approximately 25–40% of people experience some kind of VR sickness when using VR machines, companies are actively looking for ways to reduce VR sickness.[88] https://www.youtube.com/watch?v=VaZ2btqTvwI&t=1s
Everything that we know about our reality comes by way of our senses. In other words, our entire experience of reality is simply a combination of sensory information and our brains sense-making mechanisms for that information. It stands to reason then, that if you can present your senses with made-up information, your perception of reality would also change in response to it. You would be presented with a version of reality that isn’t really there, but from your perspective it would be perceived as real. Something we would refer to as a virtual reality. https://www.aliexpress.com/item/OSSC-HDMI-Converter-Kit-for-Retro-Game-Console-PlayStation-1-2-Xbox-one-360-Atari-Series/32969633292.html
As of the end of 2018, the three best selling Virtual Reality headsets were Sony’s PlayStation VR (PSVR), Facebook’s Oculus Rift and the HTC Vive. This was not a surprise, seeing as the same three HMDs had also been best sellers in 2017. 2019 sees the VR landscape broadening with Google, HP, Lenovo, and others looking to grab a piece of the still-burgeoning market. https://www.youtube.com/watch?v=hXnw8gjbk5I&t=1s

This short film has been around for awhile but was recently recreated for VR by Arte Experience. After decades of steady sight deterioration, writer and theologian John Hull became totally blind. He began documenting his experiences on audio cassette which is how the film and this project were born. His original diary recordings form the basis of the six-part interactive non fiction project using gameplay mechanics and virtual reality to explore his emotional experience of blindness. It's an incredibly fascinating and moving experience that you can't miss.
The Vive Pro sports a 2,880 x 1,600 resolution on a dual-OLED display, up from the Vive's 2,160 x 1,200 resolution. There's also dual cameras on the front that'll help track your hands and a 90Hz refresh rate with 70 sensors, giving you 360-degree head-tracking. It's not a leap to say that the Vive Pro is a monster. This is easily the most advanced VR headset out there, but it's also incredibly expensive, sitting at £799. If you don't need that added clarity, the Vive has all the same tricks. https://www.aliexpress.com/item/Insta360-Nano-360-Degree-Dual-3K-lens-VR-Video-Camera-Real-Time-Seamless-Stitching-for-iPhone/32819111754.html
You can float down the Colorado River inside the Grand Canyon in this immersive VR adventure. Start off in calm waters and quickly get blasted in the rough whitewater rapids of the Hance, Granite, and Hermit. If you've always wanted to try an adventure on the rapids, but are a bit scared, this video will give you a sense of what it's like without the wet side effects. https://www.youtube.com/watch?v=x76yky4o4KA&t=1s
As of the end of 2018, the three best selling Virtual Reality headsets were Sony’s PlayStation VR (PSVR), Facebook’s Oculus Rift and the HTC Vive. This was not a surprise, seeing as the same three HMDs had also been best sellers in 2017. 2019 sees the VR landscape broadening with Google, HP, Lenovo, and others looking to grab a piece of the still-burgeoning market. https://www.youtube.com/watch?v=d-EztjX63_s&t=1s
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