As an example, this would be a setup for multiple inputs with shuffles
controlling the input and output channels:
set cut_paste_input [stack 0]
version 8.0 v5
push $cut_paste_input
Group {
name InvertKernel
selected true
xpos -1171
ypos 212
addUserKnob {20 InvertKernel}
addUserKnob {41 "Local GPU: " T BlinkScript2.gpuName}
addUserKnob {41 "Use GPU if Available" T BlinkScript2.useGPUIfAvailable}
addUserKnob {26 "" +STARTLINE}
addUserKnob {41 Multiply T BlinkScript2.InvertKernel_Multiply}
addUserKnob {26 "" +STARTLINE}
addUserKnob {41 in l "src channel" T src_shuffle.in}
addUserKnob {41 in_1 l "src2 channel" T src2_shuffle.in}
addUserKnob {26 "" +STARTLINE}
addUserKnob {41 out l "output channel" T out_shuffle.out}
}
Input {
inputs 0
name src2
xpos -1148
ypos 70
number 1
}
Shuffle {
name src2_shuffle
label "\[value in]"
xpos -1148
ypos 110
}
Dot {
name Dot3
xpos -1114
ypos 175
}
Input {
inputs 0
name src
xpos -1471
ypos 74
}
Dot {
name Dot4
xpos -1437
ypos 116
}
set N466c6e30 [stack 0]
Shuffle {
name src_shuffle
label "\[value in]"
xpos -1363
ypos 107
}
Dot {
name Dot5
xpos -1329
ypos 175
}
BlinkScript {
inputs 2
ProgramGroup 1
KernelDescription "1 \"InvertKernel\" iterate componentWise
d88e10c48ee94eacf1c704194aca3fe8c808e9b37eb5d049298d83e733a62b90 3 \"src\"
Read Point \"src2\" Read Point \"dst\" Write Point 1 \"Multiply\" Float 1
AACAPw=="
kernelSource "kernel InvertKernel :
ImageComputationKernel<eComponentWise>\n\{\n Image<eRead, eAccessPoint,
eEdgeClamped> src; //the input image\n Image<eRead, eAccessPoint,
eEdgeClamped> src2;\n Image<eWrite> dst; //the output image\n\n
param:\n float multiply; //This parameter is made available to the
user.\n\n local:\n float _whitePoint; //This local variable is not
exposed to the user.\n\n //In define(), parameters can be given labels and
default values.\n void define() \{\n defineParam(multiply,
\"Multiply\", 1.0f);\n \}\n\n //The init() function is run before any
calls to kernel().\n void init() \{\n _whitePoint = 1.0f; //Local
variables can be initialized here.\n \}\n\n //The kernel function is run
at every pixel to produce the output.\n void process() \{\n //Invert
the input value from src and multiply:\n dst() = (_whitePoint - src()) *
multiply;\n \}\n\};\n\n"
rebuild ""
name BlinkScript2
xpos -1251
ypos 166
}
Dot {
name Dot1
xpos -1217
ypos 226
}
push $N466c6e30
Dot {
name Dot2
xpos -1517
ypos 116
}
ShuffleCopy {
inputs 2
red red
green green
blue blue
name out_shuffle
xpos -1551
ypos 223
}
Output {
name Output1
xpos -1551
ypos 298
}
end_group
On Mon, Nov 17, 2014 at 1:53 PM, Mike Frank <[email protected]> wrote:
> I would be interested if it is possible to output to multiple channels,
> according to the documents only rgba is supported.
>
> You should however be able to specify multiple image inputs into the blink
> node. They are only required to be shuffled to rgba. So a couple of
> shuffle nodes that are wrapped up inside of the Blink Script's gizmo should
> do the trick there. Is that what you mean?
>
> On Mon, Nov 17, 2014 at 1:45 PM, Patrick Heinen <
> [email protected]> wrote:
>
>> Hey everyone,
>>
>> we have written a couple of tools in blink script over here, but they are
>> now making workflows difficult when we try to use them with multiple
>> channels. For now the blink script only affects rgba. Is there a way to get
>> a channel dropdown as in other nodes? I found a hidden channels knob and a
>> specify channels checkbox, but can't figure out how to make them do
>> anything. Does anyone maybe know what I need to do?
>>
>> Thanks,
>> Patrick
>> _______________________________________________
>> Nuke-users mailing list
>> [email protected], http://forums.thefoundry.co.uk/
>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>
>
>
_______________________________________________
Nuke-users mailing list
[email protected], http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
