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perspective view of acube to plane frontview

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Ronny Traufellerperspective view of acube to plane frontview
by on Jan 10, 2012 at 2:01:38 pm

hey!


i am getting an isometric view of o cube, what i need is all visible sides as a plane rectengular composition for example, does somebody
know a good clean way to do this? something like cornerpin but in the other direction...



thanks,
ROnny!

traufeller.de


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Dave LaRondeRe: perspective view of acube to plane frontview
by on Jan 10, 2012 at 7:34:15 pm

Work with 3D layers in AE. Add a camera to the AE comp. Build a cube with square-pixel, square solids. Parent all the faces of the cube to a 3D null placed precisely in the center of the cube. To move the cube, move the null.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 10, 2012 at 8:08:21 pm

hey!


thanks!

i think i should add the following information, what i got is actually
isometric picture out of a 3d software(arranged cubes). and i need to kind of slice and remap it into rectengular plane shapes, to save two additional render steps.

doin this in After effects would save a lot time.


thanks,
Ronny.

traufeller.de


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Dave LaRondeRe: perspective view of acube to plane frontview
by on Jan 10, 2012 at 8:12:17 pm

I think it'll help to describe this shot step-by-step. Lets us know precisely the animation you're expected to deliver. What's the viewer seeing when this takes place?

Right now your description is tough to visualize.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 10, 2012 at 10:29:41 pm

thanks for your patience!

okay, i will get a picture or sequence wich looks similar to that



lets take the red cube from the bottom for example, what i need is a plane version of the sides.

like this



this is needed to remap it on the same objects build in real per projection(the arrangment with the cubes). sounds strange but i try to get rid of a extra renderprosess where i do this step in the 3d software.

so slicing it in after effects and de-streching the shapes, like i thought a reversed corner pin workflow.

uiuiui

may sound like a bad strategy but its not i think.

thanks!

traufeller.de


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Tudor "Ted" JelescuRe: perspective view of acube to plane frontview
by on Jan 11, 2012 at 7:42:26 am

As Dave mentioned, and I did before ( thread)the easiest way is to re-build the cubes in 3d space in AE. It's quite simple since all you have are cubes. You can then select each side, precompose them leaving the attributes in the main comp and then opening each precomp and replacing the solid inside with whatever texture you need.

Tudor "Ted" Jelescu
Senior VFX Artist


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 11, 2012 at 10:57:01 am

hey,



i know all this but i simply have to stick to the other way.

thanks.

traufeller.de


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 11, 2012 at 12:47:16 pm

hey,

i made a big step when it comes to transform it into plane shapes,
i use distord-> transform. the skew option helps to align the vanashing axes horizontal and vertical. and finally use scale to bring back the original proportions. and then crop it.


bit messi but for me okay ...

traufeller.de


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Tudor "Ted" JelescuRe: perspective view of acube to plane frontview
by on Jan 11, 2012 at 2:36:07 pm

You can also use a square solid, precompose leaving all attributes and then apply Corner Pin to the precomp. This way you can open the precomp and have a undistorted view of the sides of your cubes. If you want to work in the undistorted view and see how it affects the main comp (Corner Pin distorted precomps) you can lock the viewer for the main com and open a new comp viewer for the precomp by double clicking on it in the Project window and then arranging this one to appear side by side with the locked main comp window.

Tudor "Ted" Jelescu
Senior VFX Artist


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 11, 2012 at 2:55:20 pm

:)


i definatly should write clearer descriptions.

i already do what you discribed! works great! but also need the opposite workflow.

the thing is that i DONT want to create the isometric views with after effects, i get isometric pictures from an 3d app. so i always start with an already perspectived picture wich needs to be flatten.

but to be unist isometric sources with these skrew transform brings me plenty of steps further.


:)

traufeller.de


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Walter SoykaRe: perspective view of acube to plane frontview
by on Jan 12, 2012 at 1:50:20 am

[Ronny Traufeller] "something like cornerpin but in the other direction..."

You want RE:Map from RE:Vision FX [link].

It has an "Unproject" or reverse-corner pin mode. You define the four points of the plane, and it will stretch them back out to fit your comp.

If I'm understanding your question correctly, it's exactly what you're looking for.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Ronny TraufellerRe: perspective view of acube to plane frontview
by on Jan 14, 2012 at 12:53:20 pm

bam!


i didnt had the chance to test it jet but sounds like the tool
i am looking for!

not even that, it also has some uv conversion skills between 3d app and after effects. so in may case it opens some new possebilities!



best regards,
Ronny

traufeller.de


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