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Hyunkel

DX11 DX11 instancing, updating instance data.

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Just a quick question related to instancing.
Every frame I update a dynamic vertex buffer with instance data.
Do I always have to update the whole buffer?

Say my vertex buffer is big enough to hold data for 1000 instances, but right now, I'm only rendering 20.
Is it sufficient to write data for these 20 instances or must I always fill the whole buffer?

Cheers,
Hyu

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You should only need to update the data for instances you actually draw.

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