HTML5 Browser with WebGL support required! | Virtual Tour Software

“HTML5 Browser with WebGL support required!”

An error that looks familiar to you?

Well, this error is due to new web-technology on older browsers and / or hardware (eg. your laptop ).

But is there anything to do about this? Yes

Why

To show you the best experience with the Virtual Tour (Player and Editor), this requires a web technology called WebGL. This technique is used for rendering all interactive 3D and 2D graphics. (especially in the VR-mode).

These WebGL libraries are supported by all modern browsers. (Google Chrome, Mozilla Firefox, Apple Safari, Micosoft Edge).

If you get this error message when using the Virtual Tour software, it can be related to the following issues:

  1. Your browser needs to be updated
  2. WebGL and hardware acceleration were disabled in your browser
  3. A custom plug-in disabled your WebGL
  4. Your machine’s hardware does not support WebGL

For more general information about WebGL, the technology, please visit:

https://www.khronos.org/webgl/wiki/Main_Page

Check implementations on what browsers and with what hardware the WebGL is supported.

Here is a list of browsers and their support for WebGL. Check if your browser is there, if not, please update your browser to one that DOES support WebGL:

https://caniuse.com/#feat=webgl

FIX IT

What to do in general. Let start simple:

1: From your current browser

Go to this url: https://get.webgl.org/ and see what is says. Is WebGL supported or not?

2: Use another browser

If possible just use a different browser installed on your computer. Each browser has individual settings used to determine if WebGL is supported or not on your computer. So, it might be possible that Chrome is blocking it, but Firefox will allow it.

3: Update your browser to the latest version

It might be that you haven’t done this for a while manually, and/or the automatic update feature was not turned on. New updates bring new possibilities, and update on hardware being blocked. It might be that the update will look at your computer hardware with fresh new eyes. Update, restart and retry it.

Check if your browser support WebGL here: https://caniuse.com/#feat=webgl

4: Check if your hardware is still good for WebGL

What is your ‘hardware’? WebGL uses (if possible) the graphics card (GPU) in your computer to do all the calculations, so it will not interfere with the main CPU, and slow down your computer. If such a card is not there, it might use the CPU, but it will slow down the overall experience of the web page / virtual tour, and therefor you have to tell it to use it manually. If the hardware is not there, it will be hard to overcome the WebGL error message and still have a good experience in the Virtual Tour. You can either add a GPU card to the computer, or upgrade the computer itself, to be ready for the current and all new technologies coming your way.

How to check if your browser supports WebGL, and hardware acceleration:

For Google Chrome Users

Update Chrome:

https://www.google.com/chrome/

Disable your plugins of the browser:

Go to url: chrome://extensions/

Disable the plugins, restart browser and check the virtual tour. If this works, then one of the plugins is overwriting the WebGL setting and turns it off manually. It might be possible to then remove or keep that plugin disabled.

Check your hardware:
  1. In the Address Bar, navigate to chrome://settings/?search=hardware
  2. Verify that “Use hardware acceleration when available” is turned on

if not turn it on, and restart your browser.

Overwrite the software

Be careful with the next option:

  1. In the Address Bar, navigate to chrome://flags/#ignore-gpu-blacklist
  2. Enable the following:
    • ignore-gpu-blacklist
  3. Quit and re-launch Chrome

By enabling this option, you overwrite the given advice of the browser it self. This might make your experience with the browser a bit unstable, but you can always turn it back off.

For Firefox Users

Update Firefox:

https://www.mozilla.org/nl/firefox/new/

Disable your plugins of the browser:

Go to url: about:addons

Disable the plugins, restart browser and check the virtual tour. If this works, then one of the plugins is overwriting the WebGL setting and turns it off manually. It might be possible to then remove or keep that plugin disabled.

More info: https://support.mozilla.org/en-US/kb/disable-or-remove-add-ons

Check your settings:
  1. In the Address Bar, navigate to about:config
  2. Verify that “webgl.enable-webgl2” is set to true (dbl click to change)
  3. Verify that “webgl.disabled” is set to false (dbl click to change)

Check status of WebGL:

  • Go to address: about:support
  • Inspect the WebGL Renderer row in the Graphics table:
    • If the status contains a graphics card manufacturer, model and driver (eg: “NVIDIA Corporation — NVIDIA GeForce GT 650M OpenGL Engine”), then WebGL is enabled.
    • If the status is something like “Blocked for your graphics card because of unresolved driver issues” or “Blocked for your graphics driver version”, then your graphics card/driver is blacklisted.

If your graphics card/drivers are blacklisted, you can override the blacklist. Warning: this is not recommended! (see blacklists note below). To override the blacklist:

  • Go to about:config
  • Search for webgl.force-enabled
  • Set it to true

and restart your browser. This might do the trick, but can also influence your experience negative. These settings are set based upon your specific hardware. Overwriting them, can cause unexpected results.

For Safari Users

Update safari:

Go to the appstore and see if there are updates for Safari.

Disable your plugins of the browser:
  1. Go to the “Preferences” of the Safari app
  2. Go to the “Extension” tab
  3. Uncheck all boxes of the list on the left hand side.
  4. Exit Preferences and use Safari as usual

Disable the plugins, restart browser and check the virtual tour. If this works, then one of the plugins is overwriting the WebGL setting and turns it off manually. It might be possible to then remove or keep that plugin disabled.

 

Check your settings:
  • Go to Safari’s Preferences
  • Select the Advanced tab
  • Ensure that the Show Develop menu in menu bar checkbox is checked
  • In Safari’s Develop menu, select Experimental Features sub-menu and ensure that WebGL 2.0 is checked

If not turn it on, and restart your browser. This might do the trick, but can also influence your experience negative. These settings are set based upon your specific hardware. Overwriting them, can cause unexpected results.

For Windows Edge Users

(Internet Explorer is not supported)

Update Edge:

Follow the instructions here:

https://www.whatismybrowser.com/guides/how-to-update-your-browser/edge

 

Disable your plugins of the browser:

Follow the instruction here:

https://docs.microsoft.com/en-us/microsoft-edge/extensions/guides/adding-and-removing-extensions#removing-an-extension

Disable the plugins, restart browser and check the virtual tour. If this works, then one of the plugins is overwriting the WebGL setting and turns it off manually. It might be possible to then remove or keep that plugin disabled.

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