I have a question about Whitewater. I have a fairly detailed flip cached (the compressed cache) but the whitewater_sim from the shelf tool seems to be referencing the import_particle node somehow, which is before the cache. Can I use the compressed_cache instead so that the whitewater doesn't have to re-calculate so much every frame? Seems like a waste. I should say that the whitewater_source is pointing to the compressed_cache, but when I watch houdini calculate it shows it's reading the import_particle/importfields/load_each_field_end somewhere which ends up being very slow. thanks.

I know this is old, but I'm curious of this as well. Did you figure it out?

I asked myself the same thing

What I figured out is that you can point your whitewater source node directly to the compressed cache. If you started with the shelf tools and create the white water also with the shelf you have to choose the flip object but it will point the input of the white water source also to the compressed cache.