What's the new "m_BuildTextureStacks: []" property in materials?

Unity Engine
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1

After opening a 2019.3 project in 2020.1.0b8, materials were modified and an additional m_BuildTextureStacks: [ ] property was added. The shader that material is using is a custom one, thus it seems unlikely the property comes from the shader.

What is it for?

5891849--628229--upload_2020-5-24_12-13-31.png
5891849--628229--upload_2020-5-24_12-13-31.png1037×204 14.4 KB

2

Looking at the code, this seems to be something related to virtual texturing (I guess Unity - Scripting API: UnityEngine.VirtualTexturingModule and friends)

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