FAttributeSetKey

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The key by which to sort out attributes within a set We want attributes with a higher LOD value to come first (e.g. LOD 0 before LOD 1) to allow us to truncate the attribute array for a specific LOD We want parent attributes to come before their children to facilitate space conversion It has the following format:

• Bits [0, 15]: Attribute binding index (1-based) (16 bits)
• Bits [16, 31]: Parent attribute binding index (1-based, 0 if we have no parent) (16 bits)
• Bits [32, 39]: LOD (8 bits) This allows us to sort smaller values first This means that set keys are consistent within a binding and can be used by multiple named/typed sets within and compared accordingly. However, they cannot be used across binding assets.

Syntax

class FAttributeSetKey  
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class FAttributeSetKey

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