Forcing Post-Processing

This has probably been asked a million times, but I can’t find a solution. How do I force post-processing on a client as they join my server.

What you want is a RenderScreenspaceEffects hook with some of the global functions for applying whatever it is you want to apply to the screen.

Has a good example on there too of what to do.

Ahh, but for something like What would I do? It seems that The rain/snow is a particle effect. So I guess my re-worded question would be “How do I force Particle effects on the user” Sorry for the confusion.