Skybox cubemap artefact | Graphics Programming | Page 1

frank stirrup Feb 16, 2026, 9:45 PM

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Hi, I'm trying to optimise my skybox to use one draw call.

When disabling the depth buffer, this is solved, but objects drawn before aren't visible anymore.

As details: this is not an issue with the vertex winding, as the faces keep flickering and there's also not straight lines but squares that aren't being drawn.

Cull mode is back, and so is set the rasterizer state.

Any help or suggestions are appreciated, thanks.

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Here's an other picture

frank stirrup Feb 16, 2026, 10:33 PM

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https://stackoverflow.com/questions/79890512/skybox-cubemap-artefact-when-depth-buffer-is-enabled I've also posted on stackoverflow 🥹

Stack Overflow

Skybox cubemap artefact when depth buffer is enabled

I'm trying to optimise my skybox to only use one draw call. But unfortunately I have this output:
image1
image2
Disabling the depth buffer (by unbinding it) solves the issue, but objects drawn befo...

frank stirrup Feb 16, 2026, 11:21 PM

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So the black spots are really pixels where the depth check fails.

#Skybox cubemap artefact