Depth: depth test is wrong when enable logarithmic depth

[Lafeu-p]

Description

When I set depthTest = true and depthWrite = false, depth testing still works as expected.
When I use WebGLRenderer or WebGPURenderer (without enabling logarithmic depth), everything works fine. However, the issue arises after I enable logarithmic depth.
The image below is the expected result.

wrong depth

The green sphere in the foreground should be occluded by the red sphere below it.

This issue has affected many visual effects in my scene, and I sincerely hope it can be resolved.

Reproduction steps

emoty

Code

// code goes here

Live example

jsfiddle example

Screenshots

No response

Version

171

Device

Desktop

Browser

Chrome

OS

MacOS

[Spiri0]

Maybe it's because you're using a MeshBasicMaterial instead of a MeshBasicNodeMaterial. In addition, the depthNode is not served. I don't know how much automatism can be expected. I have an example here that works very well. You can see the different depths through the cubes.

https://codepen.io/Spiri0/pen/vYqpRga

I optionally created a depthShader for the depthNode and did the same with the node system. Both work identically. I hope it helps you

[Lafeu-p]

Thank you for your example.

Both MeshBasicNodeMaterial and MeshBasicMaterial have the same depth issue.

I tried your example and found that enabling depth testing and disabling depth writing still results in the same issue I mentioned earlier. This issue becomes more pronounced when transparent is set to false.

I believe that depthTest, depthWrite, and similar settings should be part of the three.js's fundamental configuration. Users shouldn't need to perform additional operations; Requiring users to set a custom depthNode for all materials while also considering whether logarithmic depth is being used places an unnecessary burden on them.
@sunag