I’m working on a sky effect experience in the cloud editor. The experience consists mainly of 2D planes with png textures with alpha transparency. The planes are staggered in a diorama-like manner. I’m facing the problem that the layers appear glitchey: there are horizontal stripes / fragments on …

Just to follow up on this, I managed to change the version of threejs being used and the alphaHash now works (v180). Thanks the help!

Take a look at this thread: [image] Sky Segmentation quality 🧑💻 Technical Support You can access the texture containing layer data via the onUpdate lifecycle method: XR8.LayersController.pipelineModule() | 8th Wall . Although, a more straight-forward way to avoid the ban…

Hi George, Thanks for the fast reply and the link – this issue is different though. I’m not addressing the glitches at the edge of the phone screen (I’m aware of this issue, too). I’m getting horizontal, flickering stripes which are reminiscent of the glitch you get from objects with identical coor…

Can you land your changes and share your project with the support workspace so I can take a look?

Thanks for looking into this George, I just shared it.

Really cool project! Unfortunately, I’m not able to reproduce the issue. If I had to guess it seems like those are artifacts from some other object or the shader have a hard time calculating the sorting order of all the different thin planes. You could try adding a small amount of depth to all of …

@Susanne_Vetter did you ever find a solution to this issue? I’m experiencing it on a sky effect I’m working on.

Hey @Callum_Fowler yes I did actually: I created the experience in Blender and it turned out that the glitches that showed after importing it to 8th Wall were an issue with the blend mode of the materials in Blender. The glitches happened when the blend mode of the material was set to “Alpha Blend” …

Glad to hear it! Unfortunately I’m setting my materials in three.js. @GeorgeButler do you know if there’s an equivalent setting on the three.js materials?

I enabled alphaHash, but unfortunately it didn’t fix the bug (it seems like alphaHash isn’t a property on the MeshStandardMaterial). I’ve seen similar issues when doing a custom render pass and not having an even number of passes. Is it possible to inject a blank pass to the layer render pipeline? I…

Artefacts and stripes in Sky Effect

Technical Support

GeorgeButler February 28, 2025, 7:13pm 2

Take a look at this thread:

Topic		Replies	Views
Sky effect: Hiding layer appears offset Technical Support cloud-editor	1	80	February 20, 2025
Sky Segmentation quality Technical Support sky-effects	2	157	April 11, 2024
Combine sky effects and transmission demos in three.js Technical Support	0	87	June 4, 2024
Non Deterministic Lighting in Cloud Editor Technical Support cloud-editor	8	37	October 2, 2025
Improve sky segmentation around clouds Technical Support threejs	2	29	September 16, 2025

Artefacts and stripes in Sky Effect

Related topics