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lucasrxg's avatar
lucasrxg
Honored Guest
1 month ago

Blurry Textures vs Mip Mapping

I'm struggling to get my models to appear sharp on Quest - They are fine in the Meta XR Simulator. The problem seems to be linked to Mip Mapping. If I uncheck Generate Mip Map on my textures, they appear sharp, but they I get some odd flickering that seems like an aliasing artifact. I tried disabling anti-aliasing to no avail. Maybe it i possible to see it here:

If I enable mip mapping, then the texture only appears sharp if it is literally 5cm from the VR camera 

I have tried playing with Mipmap Limit Groups, to no avail. My textures are 4k, I have tried to set max size to different values. 

 

Has anyone dealt with similar issues?

1 Reply

  • Degly's avatar
    Degly
    Start Mentor
    8 days ago

    4K textures on Quest can also backfire a bit because the device may aggressively drop mip levels due to memory/bandwidth pressure.

    I would do something like:

    • ASTC 6x6 or 4x4 instead of more aggressive compression
    • Aniso Level 8+
    • Trilinear filtering
    • Disable or reduce FFR
    • Slight negative mip bias (-0.3 to -0.7)
    • Check render scale / eye texture resolution

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