As soon as I set scene.useOrderIndependentTransparency = true; my project broke with the following console errors: [image] I narrowed it down to a possible incompatibility between order independent transparency and transparent GridMaterial. See the following PG for a replication - specifically th…

Yes, see: [image] DepthPeeler & transparent GroundMaterial beetleBugs Only the standard and PBR materials are compatible with OIT, not the materials from the material library (as is GridMaterial).

@Evgeni_Popov what about this issue then? No console error, but transparency is a mess just setting box.visibility = 0.8 (with default StandardMaterial): [image] Babylon.js Playground Babylon.js playground is a live editor for Babylon.js WebGL and WebGPU 3D scenes …

This PG does work for me (Chrome and Firefox in Windows 11): [image]

Interesting … The screenshot I posed was on my Surface Pro using Chrome and Windows 11: Chrome Version 139.0.7258.128 (Official Build) (arm-64) Windows 11 Home Version 10.0.26100 Build 26100 I just switched to my desktop, also using Chrome and Windows 11 and it’s fine: Chrome Version 139.0.725…

I just updated Chrome to latest version 139.0.7258.139 (Official Build) (arm-64) on Surface Pro and the issue is still evident. No problem when scene.useOrderIndependentTransparency = false; It doesn’t worry me too much. I can definitely do without it - I was just playing around. However I thought …

I marked the original issue as resolved. Thanks @Evgeni_Popov

It seems that this may be a driver issue. You can try creating a ticket at Chromium

please share the issue here and we ll try to bump it

@sebavan in preparing a Chrome bug report, I thought I’d do some more testing, and on Android Chrome that PG gives me a white screen and an uncaught type error. Reverting to scene.useOrderIndependentTransparency = false; and there’s no issue. I don’t know if this is related to or separate from the t…

It looks like this code was added recently (July 4) by @Evgeni_Popov Support for back stencil configuration + blend configuration per targ… · BabylonJS/Babylon.js@0d321a5 · GitHub I don’t know much low-level webGL but in my naive searches I can find no mention of WebGL2RenderingContext.enableIndexe…

@sebavan I’ve created a Chrome bug report for the transparency issue as best I can: Chromium

Possible incompatibility between order independent transparency and transparent GridMaterial

Bugs

Evgeni_Popov August 20, 2025, 9:42pm 2

Yes, see:

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Transparencies and Babylon 5: Super Improvement! Questions	24	1308	February 27, 2022
Stange behaviour of useOrderIndependent Transparency Questions	4	93	April 20, 2025
When custom post-processinguseis enabled in the scenario, an error message is displayed when use Order Independent Transparency is enabled Bugs transparency	2	64	July 22, 2024
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Possible incompatibility between order independent transparency and transparent GridMaterial

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