speed_lines

type: "speed_lines"

"Speed lines" emanating from the screen borders and pointing to the centre (or a given point).

Fields

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

Field	Type	Default	Meaning
center_x/y	float	0.5, 0.5	Point the lines converge to (UV)
count	float	50	Number of lines (10..200)
length	float	0.5	Fraction of the ray to the border each line covers
length_rand	float	0.7	Per-line length variance: 0 = all equal, 1 = fully random
pos_rand	float	1.0	Per-line angular position variance: 0 = lines evenly spaced around the centre, 1 = each line may sit anywhere inside its own slice (uneven spacing, no overlap)
width	float	0.5	Line thickness
seed	float	0	Layout seed: drives each line's length and its position; animate via expr (e.g. "t * 2.0") to make the layout churn
color_r/g/b	float	1 / 1 / 1	Line colour
intensity	float	1 (fades to 0)	Visibility

Example

{
    "type": "speed_lines",
    "duration": 60,
    "params": { "center_x": 0.5, "count": 50, "length": 0.5, "length_rand": 0.7, "pos_rand": 1.0, "width": 0.5 }
}

/vfx play vfxweaver:speed_lines {[count:120],[length:0.8]}

Code

/vfx play vfx_demos:show_speed_lines

Its datapack definition:

{
    "type": "speed_lines",
    "duration": 160,
    "easing": "ease_in_out_cubic",
    "persistent": true,
    "loop": true,
    "fade_ticks": 12,
    "params": {
        "center_x": 0.5,
        "center_y": 0.5,
        "count": 40.0,
        "length": 0.4,
        "length_rand": 0.6,
        "pos_rand": 0.8,
        "width": 0.4,
        "seed": 0.0,
        "color_r": 1.0,
        "color_g": 1.0,
        "color_b": 1.0,
        "intensity": {
            "keyframes": [
                {
                    "time": 0,
                    "value": 0.0
                },
                {
                    "time": 80,
                    "value": 0.7
                },
                {
                    "time": 160,
                    "value": 0.0
                }
            ]
        }
    }
}