one of many ways of doing this:
play with a Noise node set to size of 1. Follow up with a Grade node and
use it's black and white point as well as gamma to adjust how many dots
you get, follow with a Glint node for star shapes.
You can then use a larger, animated noise pattern to slightly multiply
the original one by to get some atmospheric pulsing.
quick and dirty:
Noise {
inputs 0
zoffset {{frame/300 i}}
center {1024 778}
name Noise2
selected true
xpos -272
ypos -222
}
push $cut_paste_input
Noise {
size 1
gain 1
gamma 0.1
center {1024 778}
name Noise1
selected true
xpos -162
ypos -246
}
Merge2 {
inputs 2
operation multiply
mix 0.79
name Merge1
selected true
xpos -162
ypos -222
}
Grade {
blackpoint 0.1
whitepoint 0.2
name Grade1
selected true
xpos -162
ypos -173
}
Glint {
repeat 5
length 7
tolerance 0.1
name Glint1
selected true
xpos -162
ypos -119
}
On 23/08/12 3:15 PM, gridwarped wrote:
I'm not sure where to start on creating a gizmo that generates random
dots that can be used as a star field. Being able to generate the dots
and the density (how many) is beyond my knowledge and creative
understanding at the moment.
is this a python scripting only scenario? or is there a way that I may
be overlooking using a few nodes? Any help is appreciated.
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