ParticleBlinkScript node development for NukeX 16+ - custom particle systems, GPU particle physics, and Foundry gadget templates. Also covers procedural BlinkScript atmospheric effects (snow, embers, dust) that bypass the particle system entirely. Use when user mentions particle blinkscript, ParticleBlinkScript node, custom particles nuke, blinkscript particles, GPU particles nuke, particle gadgets, procedural snow nuke, atmospheric blinkscript.