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Cascade

A code-first visual effects and sequencing library for Minecraft 1.21.1 and 26.1, on NeoForge and Fabric. Your mod plays effects from server-side code; Cascade streams them to nearby clients, which own the simulation and rendering. Nothing spawns as an entity and nothing is saved.

Cascade is a developer library. On its own it adds nothing to the game.

Vfx.emitter()
        .shape(ShapeSpec.sphere(0.5f))
        .count(200).lifetime(40).speed(0.2f)
        .gradient(Easings.LINEAR, 0xFFCC33, 0xFF3300)
        .play(level, pos);

Pages

• Getting Started - add the dependency and play your first effect
• Emitters - shape, appearance, and motion of a particle emitter
• Forces and Steering - gravity, noise, vortices, flocking
• Effects - beams, domes, shake, light, and signed-distance volumes
• Sequencing - timelines with delays and parallel branches
• Datapack Effects - author effects as JSON
• Custom Components - add particle behaviors of your own
• Capabilities and Limits - what works where, and each feature's bounds

Every method is documented in the javadoc on Vfx and the Vfx* builders.