Jacques Lucke
602ecbdf9a
This implements four optimizations in the Set Position node: * Check whether the position input is the current position and ignore it if it is. This results in a speedup when only the Offset input is used. * Use multi-threading when copying to computed values to the position attribute. All geometry types benefit from this. * Use devirtualization for the offset and position input. This optimizes the common case that they are either single values or computed in the fly in a span. * Write to `Mesh->mvert` directly instead of creating a temporary span. This makes setting mesh vertex positions even more efficient. In my simple benchmark I'm using a White Noise node to offset the position of 1,000,000 vertices. The speed is `20 ms -> 4.5 ms` in the multi-threaded case and `32 ms -> 22 ms` in the single-threaded case.
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