Here, this is what I would do it if "speed" is not constant:
(please note the expression could use some further work to avoid divisions
by 0, etc, but you get the idea)
set cut_paste_input [stack 0]
version 6.3 v4
push $cut_paste_input
Text {
font /Library/Fonts/Arial.ttf
size 240
yjustify center
box {457 389 1371 1167}
center {914 778}
name Text2
selected true
xpos -353
ypos -32
}
Crop {
box {0 0 1828 1556}
name Crop1
selected true
xpos -353
ypos -6
}
set Na4151610 [stack 0]
OFXuk.co.thefoundry.time.oflow_v100 {
method Blend
timing Speed
timingFrame 1
timingSpeed {{curve x1 1 x38 3}}
filtering Normal
warpMode Simple
correctLuminance false
automaticShutterTime false
shutterTime 0
shutterSamples 1
vectorDetail 0.2
smoothness 0.5
blockSize 6
Tolerances 0
weightRed 0.3
weightGreen 0.6
weightBlue 0.1
showVectors false
cacheBreaker false
name OFlow
selected true
xpos -240
ypos 71
}
push $Na4151610
NoOp {
name NoOp1
selected true
xpos -353
ypos 156
addUserKnob {20 User}
addUserKnob {7 avg_speed}
avg_speed {{"OFlow.timingSpeed.integrate(OFlow.first_frame,frame) /
(frame-OFlow.first_frame)"}}
addUserKnob {7 test l frame R 0 1000}
test {{"(frame-OFlow.first_frame) * avg_speed + OFlow.first_frame" i}}
}
On Tue, Oct 25, 2011 at 3:31 PM, Ivan Busquets <[email protected]>wrote:
> Yes, you're right Howard.
> That expression only works assuming the speed is constant.
>
> If the speed parameter is animated, you would have to find the average
> speed up until that point (the integrate from start to current, divided by
> current-start), and use that in place of "timingSpeed"
>
>
>
> On Tue, Oct 25, 2011 at 2:52 PM, Howard Jones <[email protected]>wrote:
>
>> Hi
>>
>> Just thought I'd try this but no luck, could be me.
>>
>> Howard
>>
>> set cut_paste_input [stack 0]
>> version 6.3 v5
>> push $cut_paste_input
>> add_layer {rgba rgba.beta}
>> Text {
>> font /Library/Fonts/Arial.ttf
>> yjustify center
>> box {480 270 1440 810}
>> center {960 540}
>> name Text1
>> selected true
>> xpos 1073
>> ypos 139
>> }
>> set N2114dbf0 [stack 0]
>> OFXuk.co.thefoundry.time.oflow_v100 {
>> method Motion
>> timing Speed
>> timingFrame 1
>> timingSpeed {{curve x16 0.5 x38 3}}
>> filtering Normal
>> warpMode Simple
>> correctLuminance false
>> automaticShutterTime false
>> shutterTime 0
>> shutterSamples 1
>> vectorDetail 0.2
>> smoothness 0.5
>> blockSize 6
>> Tolerances 0
>> weightRed 0.3
>> weightGreen 0.6
>> weightBlue 0.1
>> showVectors false
>> cacheBreaker false
>> name OFlow
>> selected true
>> xpos 1073
>> ypos 242
>> }
>> push $N2114dbf0
>> NoOp {
>> name NoOp1
>> selected true
>> xpos 976
>> ypos 238
>> addUserKnob {20 User}
>> addUserKnob {7 test l frame R 0 1000}
>> test {{"(frame-OFlow.first_frame) * OFlow.timingSpeed +
>> OFlow.first_frame"}}
>> }
>>
>>
>> ------------------------------
>> *From:* Ivan Busquets <[email protected]>
>> *To:* Nuke user discussion <[email protected]>
>> *Sent:* Tuesday, 25 October 2011, 19:56
>> *Subject:* Re: [Nuke-users] OFlow: Source Frame at the current Frame
>> using Speed?
>>
>> If it's set to speed, something like this should do it:
>>
>> (frame-OFlow.first_frame) * OFlow.timingSpeed + OFlow.first_frame
>>
>>
>> On Tue, Oct 25, 2011 at 11:43 AM, David Schnee <[email protected]>wrote:
>>
>> **
>> Does anyone know how to derive the actual source frames on the current
>> frame when using the 'Speed' timing method in OFlow? I'm looking to get a
>> curve to export ascii data of the source frames on the current frame for a
>> range.
>>
>> Cheers,
>> -Schnee
>>
>> --
>>
>> \/ davids / comp \/ 177
>> /\ tippettstudio /\ sno
>>
>>
>> _______________________________________________
>> Nuke-users mailing list
>> [email protected], http://forums.thefoundry.co.uk/
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>>
>>
>>
>> _______________________________________________
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>> [email protected], http://forums.thefoundry.co.uk/
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>>
>>
>> _______________________________________________
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>>
>
>
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