Setting Upper and Lower Height Limits in Cave Dust

Cave Dust spawns particles underground, and its height limits decide where those particles appear and where they thin out. The two depth controls — Upper limit height and Lower limit height — work together with the particle amount and fade behaviour, so understanding each one makes the mod far easier to tune.

What the two limits do

The Upper limit height is the depth at which particles stop appearing and fade away. It uses your player's y position, so the limit is measured against where you are standing rather than a fixed world coordinate. Above that point, no new particles are created and existing ones disappear.

The Lower limit height is the depth where particles are most dense. Again this is based on your player's y position. At this level the spawn rate is at its highest, and it drops off as you move toward the upper limit.

Read together: particles are thickest at the lower limit and gradually reduce until they vanish at the upper limit. Setting the two values close together gives a narrow band of activity; spreading them apart creates a long, gradual fade.

Opening the settings

Cave Dust is configured through its interface rather than through crafting or items. Open the mod's settings screen to reach the height fields. The Upper limit height and Lower limit height entries are where you type or adjust your chosen depths. Both fields carry the same explanatory text about fading and peak spawning, so you can confirm which is which while editing.

Related settings worth knowing

Several other options affect how the height limits feel in practice:

• Particle multiplier — scales how many particles are produced. Raising it makes the band between your limits noticeably busier; lowering it thins everything out.
• Maximum width to spawn particle — caps how wide the spawn area extends.
• Maximum height to spawn particle — caps the vertical span used for spawning.
• Velocity randomness — controls how erratic particle movement is. More randomness looks looser and more scattered; less randomness looks calmer and more uniform.
• Enhanced detection — when enabled, checks use the particle's own position instead of the player's, which is more accurate but costs some performance. When disabled, the simpler player-based check is used.
• Superflat particles — decides whether particles appear in superflat worlds at all.

Enabling, disabling, and resetting

Cave Dust can be switched on or off, and the interface reflects the current state with an enabled/disabled label. There is also a reset option that clears every setting back to its defaults; the interface asks you to confirm before doing so, so an accidental click will not wipe your configuration.

If the particle type fails to apply, the mod reports an error and moves on to the next available particle instead of stopping.

Choosing values

Pick a Lower limit height at the depth where you want the strongest effect — the level you spend most time mining, for example. Then set the Upper limit height above it at the point where you want the dust to disappear. Because both use your player's y position, the effect follows you as you descend or climb, and the fade happens relative to your current depth rather than a fixed elevation.

If the transition feels too abrupt, move the upper limit further from the lower limit. If the particles seem too sparse overall, increase the Particle multiplier before changing the limits themselves. For more consistent results in unusual terrain, consider enabling Enhanced detection, keeping in mind the performance cost.

Any hotkeys mentioned by the mod's controls are assigned in the controls menu; the particle selection entry is clicked to cycle through available particles rather than bound to a key.