bloom

type: "bloom"

Glow around bright screen areas.

Fields

Every screen effect also accepts screen_layer and the shared definition fields (duration, easing, loop, persistent, fade_ticks, sound).

Field	Type	Default	Meaning
intensity	float	0.6 (fades to 0)	Glow strength
threshold	float	0.7	Luminance above which pixels glow (0..1)
radius	float	3	Glow spread in pixels

Example

{
    "type": "bloom",
    "duration": 60,
    "params": { "intensity": 0.6, "threshold": 0.7, "radius": 3 }
}

/vfx play vfxweaver:bloom {[threshold:0.5],[intensity:1]}

Code

/vfx play vfx_demos:show_bloom

Its datapack definition:

{
    "type": "bloom",
    "duration": 160,
    "easing": "ease_in_out_cubic",
    "persistent": true,
    "loop": true,
    "fade_ticks": 12,
    "params": {
        "intensity": {
            "keyframes": [
                {
                    "time": 0,
                    "value": 0.1
                },
                {
                    "time": 80,
                    "value": 0.85
                },
                {
                    "time": 160,
                    "value": 0.1
                }
            ]
        },
        "threshold": {
            "keyframes": [
                {
                    "time": 0,
                    "value": 0.75
                },
                {
                    "time": 80,
                    "value": 0.55
                },
                {
                    "time": 160,
                    "value": 0.75
                }
            ]
        },
        "radius": 3.0
    }
}