MM_Fireflies (Compatible with IFFS 2015.0.0 and up)

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Procedural fireflies - drifting movement, asymmetric flash (fast rise, slow decay, intermittent bursts). Generator over black - Screen or Add downstream onto your plate.

Setup:

• Count: number of fireflies
• Seed: reshuffle placement/timing
• EdgeMargin: inset of spawn field from frame edge
• DriftSpeed / DriftAmount: wander motion
• FlashSpeed / FlashRandomness / FlashAttack / FlashDecayPower / FlashSparsity: flash timing
• ColorR/G/B, Brightness, TwinkleVariation: look
• GlowSize, CoreSize, CoreBrightness: glow shape
• ZSpeed, ZNear, ZFar, Spread: depth travel - fireflies swoop in close/huge and recede into the distance, looping
• TargetX/Y, TargetLooseness: vanishing point fireflies travel toward/from - animate to fake a camera move’s trajectory
• ShowTarget: red crosshair at the Target position, setup aid only - turn off before final render
• Hero: one always-lit firefly that weaves organically in front of the swarm, its own depth/wander/look, with its own Hero Target X/Y it’s roughly attracted to
• Show Hero Target: blue crosshair at the Hero Target position, setup aid only - turn off before final render

Made by Marcus M.

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Version notes

My latest version but happy to listen to things that might improve. Thank you.

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Older versions that shader

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