rainbow
// create a rainbow arc
rainbow {
angle 30 // degrees
width 6 // degrees
distance 1000
direction <0,-0.5,1>
jitter 0.01
arc_angle 180 // degrees
falloff_angle 60 // degrees
// up <UP>
color_map {
[0.000 color rgbf <1.0, 0.5, 1.0, 1.0> ]
[0.100 color rgbf <1.0, 0.5, 1.0, 0.8> ]
[0.214 color rgbf <0.5, 0.5, 1.0, 0.8> ]
[0.328 color rgbf <0.2, 0.2, 1.0, 0.8> ]
[0.442 color rgbf <0.2, 1.0, 1.0, 0.8> ]
[0.556 color rgbf <0.2, 1.0, 0.2, 0.8> ]
[0.670 color rgbf <1.0, 1.0, 0.2, 0.8> ]
[0.784 color rgbf <1.0, 0.5, 0.2, 0.8> ]
[0.900 color rgbf <1.0, 0.2, 0.2, 0.8> ]
}
}