The pattern looks like the box filtering artefact, which is being
accentuated by the merge operation, similar to:
set cut_paste_input [stack 0]
version 6.3 v5
Constant {
inputs 0
channels rgb
color 0.115
name Constant1
selected true
xpos -81
ypos -52
}
set N1e6835c0 [stack 0]
Transform {
translate {-146 -150}
rotate -0.6
scale 0.333
center {512 512}
name Transform3
selected true
xpos -81
ypos 37
}
push $N1e6835c0
Dot {
name Dot6
selected true
xpos 63
ypos -25
}
Merge2 {
inputs 2
operation difference
name Difference
selected true
xpos 34
ypos 52
}
Multiply {
value 10000000
name Multiply1
selected true
xpos 34
ypos 78
}
If you switch the filter to impulse, the pretty pattern goes away (since
impulse is nearest-neighbour, or "no filtering")
>From the toolip on the Merge's operation, the expression is
A+B(1-a)/b, A+B if a+b<1
Not sure of the notation (what is A and what is a?), but the dividing by
b might explain this..?
On 16/12/11 00:19, glouk wrote:
> it's also quite interesting when you animate the rotation on a 360° cycle...
>
>
>
> Le 15.12.2011 14:53, Juan Galva a écrit :
>
>> intresting how the patterns changes when modifying the Transform filter...
>>
>> On 15 December 2011 14:49, Ron Ganbar <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Strange. I wonder if this can be explained rather than just
>> shrugged as a bug.
>>
>>
>> Ron Ganbar
>> email: [email protected] <mailto:[email protected]>
>> tel: +44 (0)7968 007 309 [UK]
>> +972 (0)54 255 9765 [Israel]
>> url: http://ronganbar.wordpress.com/
>>
>>
>>
>> On 15 December 2011 15:10, makis
>> <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Hi all,
>>
>> nice effect with the merge node Smile
>> (v6.3v5 on Linux)
>>
>>
>>
>> <http://imageshack.us/photo/my-images/809/disover.jpg/>
>>
>>
>>
>> set cut_paste_input [stack 0]
>> version 6.3 v5
>> Constant {
>> inputs 0
>> channels rgb
>> color 0.115
>> name Constant1
>> selected true
>> xpos 63
>> ypos -4
>> }
>> set N4ea1ab0 [stack 0]
>> AddChannels {
>> channels alpha
>> color 1
>> name AddChannels1
>> selected true
>> xpos 63
>> ypos 85
>> }
>> Transform {
>> translate {-146 -150}
>> rotate -0.6
>> scale 0.333
>> center {512 512}
>> name Transform3
>> selected true
>> xpos 60
>> ypos 139
>> }
>> push $N4ea1ab0
>> Dot {
>> name Dot6
>> selected true
>> xpos 207
>> ypos 23
>> }
>> Merge2 {
>> inputs 2
>> operation disjoint-over
>> name Merge2
>> selected true
>> xpos 173
>> ypos 139
>> }
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>>
>> --
>>
>> Y ella dijo: "La ilusión mueve el mundo"
>
>
>
> --
>
> "beam me up scotty"
>
> glouk <http://http//www.imdb.com/name/nm0522119/>
>
> <http://demo.glouk.org>
>
>
>
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--
ben dickson
2D TD | [email protected]
rising sun pictures | www.rsp.com.au
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