Start here first
Try first the Free Preview. Use your device’s browser, open the video page, press Play, switch to Full Screen, then choose 3D SBS in the playback options. Use the Full SBS button for VR glasses. If you cannot watch well, select your symptom or device. You also can read our sections Browsers & Apps Guides, How web-based 3D playback works and Before you contact support.
Quick fixes by symptom
Troubleshooting by device
Standalone VR (Quest / Pico / Vive XR / Qiyu)
PC VR (Index / Vive / Reverb G2 / Pimax)
Apple Vision Pro
VITURE (One / Pro / Luma)
XREAL Air + Beam / Beam Pro
Rokid Max + Station
3D Projectors / 3D TV (HDMI)
Smart TV browsers (Android TV / webOS / Tizen / Fire TV)
Desktop browser as source device (PC / Mac)
Apps & players
Standalone VR (Quest / Pico / Vive XR / Qiyu)
Using the headset's web browser
Virtual Desktop / Bigscreen streaming from the PC
Standalone headset browsers are useful to confirm that the page loads and the movie starts, but they do not always provide the best SBS viewing environment. If the video plays yet stays flat or shows two halves, the browser layer is often already working and the missing step is the headset viewing mode or an alternative route such as PC mirroring.
PC VR (Index / Vive / Reverb G2 / Pimax)
Using Virtual Desktop or Bigscreen Remote Desktop from the PC
With PC VR, the desktop browser is usually the clean reference environment. If the movie looks correct on the monitor but wrong in the headset, the problem is rarely the website or the file. It is normally the VR presentation route, fullscreen behaviour or the SBS interpretation inside the VR environment.
Apple Vision Pro
Using Safari as the browser
Safari does not fuse SBS. Use a 3D-capable video app or mirror from PC with Virtual Desktop / Bigscreen, play in Full Screen and select 3D SBS.
VITURE (One / Pro / Luma)
PC/Mac with extended monitor to the glasses
iPhone/iPad using the SpaceWalker app
VITURE playback depends strongly on the host device and the route. On computers, extended display mode is often better than mirroring. On iPhone or iPad, if playback fails inside the normal route, add the video page to the Home Screen from Safari and open it from that icon before pressing Play.
XREAL Air + Beam / Beam Pro
Air Casting with the Beam / Beam Pro accessory
XREAL glasses behave like an external display, so host resolution, fullscreen and the selected 3D mode matter a lot. If the picture looks squeezed, check whether the host is sending the right display context and whether Beam or Beam Pro is really in SBS mode.
Rokid Max + Station
Using Rokid Station as the source
Rokid devices also depend on the host route and the selected device mode. If the image stays 2D or looks thin, verify that the Station has actually switched to SBS and that the movie is already in fullscreen before changing the glasses mode.
3D Projectors / 3D TV (HDMI)
Using the projector/TV 3D menu via HDMI
TVs and projectors are often the most direct SBS route, but they usually require manual Side-by-Side mode. If you see two halves, that often means the movie is already playing correctly and the missing step is simply the display 3D menu. Overscan and wrong output resolution can also distort subtitles or proportions.
Smart TV browsers (Android TV / webOS / Tizen / Fire TV)
Desktop browser as source device (PC / Mac)
Using a desktop browser as a clean reference test
Apps & players that read web pages (open links) — HereSphere, DeoVR, HoloShader, etc.
Opening our full web page link inside the app
Some apps can open web pages and some cannot. Even among those that can, their browser component may not fully support complex embedded players. If a route fails inside an app but works in a real browser, the limitation is often in the app environment rather than in the website.
Apps & players without web navigation (they do not open links) — Skybox, Moon, 4XVR, Pigasus, iPlay VR, etc.
Trying to use these Apps & players
Detailed solutions
Playback does not start
Open the same page with an alternative browser (Chrome / Firefox / Wolvic). Switch the player to Full Screen. If you use a headset and the pointer fails to click Play, press the triggers on both controllers at the same time.
I see two side-by-side halves in 2D (no depth)
Press the player Full SBS to correct proportions, and in your app select 3D SBS. If depth still feels wrong, use the app option to swap left/right eyes. In Virtual Desktop press F6 to toggle 2D / halfSBS / fullSBS.
No subtitles (CC) or Full SBS button doesn't work or you can't press Full Screen
No subtitles (CC), Full SBS button not working or unable to press Full Screen. Press the triggers of both controllers at the same time. Open the same page with an alternative browser (Chrome / Firefox / Wolvic). Verify browser zoom is not active (Ctrl+0 on PC / pinch on mobile), because it can hide part of the menu.
Buffering or cuts
This is usually resolved by properly configuring your device to connect in 5G mode using an uncongested network. To rule out a device-related issue, try playing the video on a PC connected via fiber or ADSL. If the problem persists, to rule out an issue with your internet service provider, try playing the video from another location. There may be temporary traffic peaks on our server that are resolved shortly.
In Virtual Desktop/Bigscreen the image still looks 2D
With the PC browser video in Full Screen, switch the app to 3D SBS. In Virtual Desktop press F6 to toggle 2D / halfSBS / fullSBS. Note: Bigscreen typically uses half-SBS (set to SBS there); use the player Full SBS if proportions look off.
Safari shows two halves in 2D
Safari does not fuse SBS. Use a 3D-capable video app or mirror from PC with Virtual Desktop / Bigscreen, play in Full Screen and select 3D SBS.
On VITURE the image looks 2D or proportions are wrong
Extend your desktop to the glasses screen and move the browser there. Enter Full Screen. On the glasses hold Mode/R1 to toggle 2D/3D. Use Full SBS if the frame looks thin/squashed.
On iPhone/iPad (SpaceWalker) the screen is black or Play does not start
Open Safari → go to the video page on our website → tap the Share icon and select Add to Home Screen → open the video from that new icon on the Home Screen and press Play. This avoids in-app limitations reported in SpaceWalker.
On XREAL Beam the 3D mode does not activate
Switch the Beam menu to 3D SBS and play the video in Full Screen. If proportions look off, press the player Full SBS.
On Rokid Station it remains 2D
Hold the Station brightness control until it switches to 3D SBS; then play in Full Screen.
Projector/TV 3D menu not available / no SBS option
On PC select 1080p@24 Hz (or 720p@120 Hz on some models). In the projector/TV 3D menu select Side-by-Side (SBS). Use the player Full SBS if proportions are not right.
Projector does not auto-correct proportions
If your projector does not auto-correct the SBS proportions, press the player's Full SBS button to force full side-by-side proportions and correct the aspect.
In apps that read web pages (HereSphere/DeoVR/HoloShader) the URL fails or stays 2D
Use the full web page link (e.g. https://www.3donlinefilms.com/Sample/) not a raw video file. In the app select 3D SBS. Some players only recognize MP4/M3U8; if the app cannot open our website, use your headset browser or mirror the PC with Virtual Desktop/Bigscreen.
XR glasses show a flat, squeezed or badly scaled image
XR glasses depend on the host device. Check whether the glasses are running as extended display or mirrored display, move the browser window to the glasses screen, enter Full Screen, and then activate the device 3D mode. If the image looks thin, your device may be interpreting Half SBS as Full SBS or using the wrong display context.
The movie does not play correctly in a Smart TV browser
Built-in Smart TV browsers are often limited for embedded web players. If the player buttons do not respond, fullscreen is incomplete, or playback is unstable, use a PC connected by HDMI or another external device, then activate Side-by-Side on the TV. This is usually more reliable than the TV browser.
I am not sure whether the problem is the website or my device
Test the same movie in a modern desktop browser. If the page loads, the player appears, the video starts and fullscreen works on a PC or Mac, then the website, the file and the player are working correctly. The remaining issue is usually your viewing route, device mode or browser environment.
Subtitles or edges are cut off on a TV
Check the TV display settings for overscan, Just Scan or 1:1 pixel mapping. Browser subtitles are part of the frame sent to the TV, so overscan can crop them. If needed, use a PC by HDMI and make sure the output resolution matches the TV.
Guides (browsers & apps)
Wolvic (XR Browser)
Install it from your headset store if available. Open our website, tap Play and Full Screen. Select 3D SBS.
Virtual Desktop (PC → headset)
Install the app in the headset and the Streamer on your PC. Open the PC browser and set the video to Full Screen; in VD switch to 3D SBS (shortcut F6). Virtual Desktop can toggle 2D / halfSBS / fullSBS with F6.
Bigscreen Remote Desktop (PC → headset)
Install the app on the headset and Remote Desktop on the PC. Open the PC browser with the video in Full Screen and set 3D SBS in the app. Note: Bigscreen typically uses half-SBS (select SBS).
How web-based 3D playback really works
Web-based 3D playback follows a real chain: Browser → JW Player → device display pipeline → device-specific 3D mode. The browser does not create the 3D effect. It simply shows a normal frame that contains the left and right views side by side.
The final 3D effect only appears when the last device or app interprets that frame correctly. That is why the same movie can work on one route and fail on another using the same account and the same file.
If you see two side-by-side images, the movie is often already playing correctly. The missing step is usually the final SBS or 3D mode of the device.
Before you contact support
Use our chatbot first. It is trained to help with playback routes, SBS mode, fullscreen issues, subtitles and browser/device problems.
If the chatbot does not solve it, contact support via our social media and include the details that really matter.
- Your exact device model.
- The browser or app you are using.
- The playback route: headset browser, desktop browser mirrored into a headset, HDMI to TV, phone to XR glasses, Smart TV browser, and so on.
- The exact symptom: Play does nothing, two halves, wrong proportions, missing subtitles, buffering, black screen, or controls hard to click.
- Whether the Free Preview behaves the same way.