Downsides to using shared texture sampler source?

[PerpetualChange]

@anonymous_user_f2b8b290

The only reason we didn’t make Shared: wrap the default was to avoid breaking existing materials. There’s no downside to using shared samplers if the settings match what you want, only upsides. On AMD GPU’s used in the consoles, shared samplers are slightly faster as well.

But what does that actually mean? I’m still not entirely sure what Shared Wrap is doing to optimize a material.