Hi GDNet,

I've been converting an online tool to WebGL and hoping to get it tested on a variety of hardware & screens. Would some kind people here be willing to give it a quick spin (only takes 5 seconds) and let me know how it goes?

The webapp is here: https://slantt.co/editor/tiles

If it does fail (for example if you only see a black canvas) please could you grab the console logs (right-click → Inspect → click Console tab) and let me know which OS, browser and HW & screen-size you're on.

This is what it ought to look like if everything is working correctly:

Many thanks!

It seems to work as in the video, looked correctly to me. The performance was unsurprisingly very good on my hardware - Ryzen 9 5900X, 128 GB RAM, Radeon 6800.

Worked for me without issues using Chrome/Win7 inside VirtualBox.
Perf. not that great due to missing GPU support, but still workable.

Browser: Brave

OS: Windows 10

Specs: AMD Ryzen 5

Works pretty good. I have a whole bunch of tabs open as well as another program and no signs of lag/delay on the app. The “All Tiles” and "Selected Tile" functionalities are working fine as well. Although there is this strange collision issue with tiles breaking collision when dragged on each other.

RamiMorrar said:

Although there is this strange collision issue with tiles breaking collision when dragged on each other.

That's a good find, I'll investigate that. Looks like it just about clips into the other tile maybe due to rounding/precision errors or could be an off-by-one bug or incorrect bounds check (<= vs <) and then the depth sorting does its thang and places the whole tile to the back.

Vilem Otte said:

It seems to work as in the video, looked correctly to me. The performance was unsurprisingly very good on my hardware - Ryzen 9 5900X, 128 GB RAM, Radeon 6800.

Thanks for trying it! That's better HW than I'm rocking! Really I'm targeting mid-range laptops, I'm hearing it's running ok now on Dell laptops and various kinds of Macbooks or Mac Minis so I'm pretty happy with that.

JoeJ said:

Worked for me without issues using Chrome/Win7 inside VirtualBox.
Perf. not that great due to missing GPU support, but still workable.

Wow - as far as I know you're the first to try it in a VM. Good to know it can take that sort of a beating :D

Firefox 96.0, Linux.

The scroll bar appears and disappears as the cursor is moved horizontally, and the image jerks as the space is reallocated.

This site appears to use a scroll-linked positioning effect. This may not work well with asynchronous panning; see https://firefox-source-docs.mozilla.org/performance/scroll-linked_effects.html for further details and to join the discussion on related tools and features!

Cross-origin request rejected:

XHR POST https://hive.splitbee.io/i​

Third-party cookie rejected:

Cookie “” has been rejected as third-party.

Nagle said:

Firefox 96.0, Linux.

Thanks for this Nagle that's really helpful. Not sure if it matters which Linux distro are you on?

I'll hop onto an Ubuntu box and see if I can replicate this. I haven't come across that Firefox message before. The splitbee cookie error is just web analytics tracking, I'd guess it failed because you've actually got some decent privacy settings enabled - good on you ?