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LOD - Attachment vs. Rigged


Rusalka Writer
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I've noticed that rigged mesh holds on to a higher LOD longer than attached mesh. I made a headpiece for a weird avatar and attached it, and discovered that it dropped to a low LOD at an unacceptably short distance. Rather than fiddle with the LODs, I discovered if I rigged it it looked fine. Unsure if this is a bug or a feature.

 

Attached:

Attached Head

 

Rigged:

Rigged Head

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It's a feature -- rigged attachments use the avatar skeleton bounding box when determining LoD.  This is because a rigged attachment's non-rigged size as known by the CPU can vary wildly from the rigged size as known by the GPU.  Synchronizing between the two takes a lot of cycles, so we just use the avatar skeleton bounding box as a best guess.

 

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