Hi everyone, we are not actively working on mipmap streaming for texture arrays unfortunately. We’ll discuss it in our next planning meeting this week. However, we are working on Streaming Virtual Texturing . Instead of putting the textures into an array you could put them into a huge atlas and stream them with SVT. It might not make sense for all use cases though. SVT is available from Unity 2020.1 with HDRP 9-preview (not URP or built-in). You can watch a Unite presentation on SVT here.
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