Attention
if you cannot see all the
images on this page you will need to "Refresh" it.
Right-click with the mouse button and select"Refresh".
Choose a language to translate this page
Search in 3D Gugle User's guide
3D Gugle
User's guide
(Sample of Layers
Assembly)
[A stereo animation]
"Layers Assembly"
LAB of 3D Gugle is intended to work independently on each of the two
images that constitute the stereo pair.
When you open the
window "Frame synchro window", two new buttons become
visible and active: the "Synchro" button and the "Main"
button.
Pressing one or the other
button selects which window will be used for positioning the Layers.
The "Frame synchro window" is not only a powerful
tool but also provides a Real Time stereo preview of your work.
The example described later
is very simple and is only to illustrate which controls and functions
to use. The example will also demonstrate a method for producing
Layers with text and animating them for stereo viewing.
The
procedure described here for the layers deformation can be very useful but 3D
Gugle has a specific laboratory for the application of the algorithms with which
you can operate in a more precise and rapid way , see: "Algorithms
to Layers".
When you create a stereo
animation be aware that there are two ways to do this.
Type
"I" (Inside) is an animation that uses movement in only
one of the two images. Type "M" (Movement) is an
animation that simply moves a graphic object in 3D space but does not
modify the 3D attributes of the object that moves.
The mixed
technique M+I is not only possible, it is quite usual. 3D Gugle
manages the two types of animation and the combination M+I
In
the following will be described two examples that illustrate the two
different types of stereo.
Create a folder with the
name "LayersText" in which to put the New Layers.
Select
"File/New
Canvas" and then in the input box for the pixel
dimensions insert 400 X and 400 Y and black for the foreground
colour, then press "OK".
With this function you have
created a 'null' Layer.
In the input-text area of the “Write” dialogue
enter "3D Gugle" and then press the blue "Set change"
button to insert the text.
From the list of fonts, select
"Times New Roman" Click on the "Size"
spinbutton and increase the value to 56 and then activate "Bold"
with the specific selection button.
Select a desired colour
by clicking the colour-wheel. Click on the text that you have
just created and drag it to the approximate centre of the Layer and
then press "OK" to leave the "Write"
LAB.
Save
the Layer named "Text000.gna" in the new folder. Select "Image/Transform/Sphere".
In the "Sphere" dialogue select the barrel
deformation: "Barrel Y".
Set scroll "r" to
the value - 30 Set scroll "Rot X" to 40 Set scroll
"Rot Y" to 20
Save the Layer in the new folder with
the name "Text020.gna", to save you press "Save"
that is in the same Sphere dialogue.
With scrollbar "Rot Y
= 20" move it towards the value "Rot Y = 40",
increasing the value by 20. Save the Layer with the name
"Text040.gna".
Repeat the same operation with the
same increases of 20 up to the value "Rot = 200".
From your photographic
files, select a suitable image for the background , open it in 3D
Gugle and crop to 500 x 420 pixels. Cropping is not essential
but a suitable image that has unused parts consumes memory and
wastes preview space.
To crop, right-click the image , draw
a Box and then with right-click select “Crop” from the
context menu. For further information on the "Box" click here "Selection
Box"
Save the
cropped image in the new directory.
We have chosen as
background image this hot macaroni.
Open
your background image and from the menu "2D to 3D" run
"Layers Assembly" LAB.
From the menu "File"
of "Layers Assembly", select "Add Layer(s) to load
the text Layers previously created.
Select both Layers (not
the background image) and with the “X" scrollbar move the
layers to the left and off the screen. To fix the position of
every Layer, select "Options/Auto Step XY" and in the box
"Amount Step" insert the value zero.
Select the option "All Layers" and then press "Apply".
The
first Layer "Text000" is the original that does not
have any deformed writing. This Layer will have to be visible in
a fixed way only in the left film. The right film will have the
entire sequence of layers from "Text020" to
"Text200".
Open "Window/Frame synchro
window". When "Frame synchro window" becomes
active in the main control panel two new buttons appear. The
buttons are "Synchro" and "Main".
On
pressing "Synchro", the control panel commands operate on
the “Synchro” window Layers. When "Main" is
pressed they operate on the main window Layers.
Line up the
two windows, selecting "Window/Tiled Main Right" in the
synchronised window for a cross-eyed preview or "Tiled Main
Left" for a parallel-eyed preview.
Press "Synchro"
to operate in the Synchro window.
Select the background image
and move it with the "X" scrollbar to the position "X
= - 30". With this action you have added depth to the scene.
We now fix this position value for all the frames with "Auto
Step XY", setting zero in the "Amount Step" box.
Move Layer "Text000" onto the screen using the X
scrollbar and bringing its value to "X = 0". Note:
The same action could be performed by clicking on the little white
button.
We fix the position of this Layer for
all the frames with "Auto Step XY" and set zero in the box
of "Amount Step".
We now activate the main
window by pressing "Main" on the control panel.
Select Layer "Text020"
and move it onto the screen using the X scrollbar and bringing its
value to "X = 0".
Select
the following frame, moving from frame "0" to frame "1".
To move a frame, click the "Frame" spinbutton on the
control panel.
Select Layer "Text040" and move it
onto the screen using the X scrollbar and bringing its value to "X
= 0". We select the following
frame moving from the frame "1" to the frame "2".
Select Layer "Text060" and move it onto the
screen using the X scrollbar and bringing its value to "X =
0".
Repeat the
same operation up to the end of the Layers, increasing the
frame number by units and selecting the Layer below the preceding
Layer.
On completion, you should have in total 10 (0 -9)
frames in the scene. To see the preview set the "End"
spinbutton to 9 and press "Play all Layers".
Save
the position data with "Save frames data" from the "File"
menu of the control panel.
Create two new folders to save the
left and right frames with the names "FramesLeft" and
"FramesRight".
Activate the synchronised window by
pressing "Synchro" on the control panel.
Select
"File/Save all frames" to save the left frames (those of
the "Synchro" window) To save the right frames, click
"Main" and then select "File/Save all frames".
Close
"Layer Assembly" because we will next be using the left and
right frames to create a stereo film with the animation.
Create
two new folders named "Frames3D" and "FramesRightINV".
Select "Frames
Utility/File/Load Frames" and then select the folder
"FramesLeft" . Click on "Add frames" and then
click on the yellow button "Load Frames" and again select
the folder "FramesLeft". Set the "End" spinbutton of the green
sector to 9 and set On the check button "Add frames to end". Press "Apply" to
clone the series of left frames .
We now combine the right
frames with their inverted series .
Select "Frames
Utility/File/Load Frames" and then select the folder
"FramesRight". Click"Add frames" and then
click on the yellow button "Load Frames" and select the
folder "FramesRightINV" .
Set the "End" spinbutton of
the green sector to 9 and set On the check button "Add frames to end". Press "Apply" to
combine in the folder FramesRight the right series of the frames with
their inverted series.
Close the dialogue "Frames
Utility" dialogue.
The next operation will be
to unite the left frames with the right frames to create a new series
of stereo frames in side-by-side format for freeviewing (cross-eyed
or parallel) or with a stereoscope.
Select "File/Open Left Frames" to load the left frames
and then "Open Right Frames" to load the right frames.
Select "Left/Stereo". Click on the "Down"
arrow icon to access the Layout setup section. In this section
you set the left/right frames into position and with the dimensions
that you prefer. Again, press the "Down" arrow to
return to the video-editor section. Set the "End" spinbutton
to "19" and "Start" to "1", Note:
The film begins from frame "1" because frame "0"
is the original frame and is not part of the scene flow. Press
the yellow "Set" button to memorise the sequence. If
you want to see the preview, double click on the sequence just
inserted or use the blue "Play" button.
To save the
new frames in side-by-side format in the folder "Frames3D",
select "File/Save 3D Frames". If your film is intended for polarised
projection it is convenient to make two separate left and right films, one for
each projector. To independently save the
two series of frames use the menus "Save Only Left Frames"
and then "Save Only Right Frames". In this last case the
frames must have been saved in two separate folders.
To
continue, we need to ensure that the pixel dimensions of the new
stereo frames are exactly divisible by 8. To crop the frames in the
sequence, use the "Frame
Utility" LAB.
It is
best to equally-crop the stereo frames in a balanced way. If the
frames are side-by-side,the crop must be evenly-distributed between
left and right.
If the stereo frames are separate
left-right, the cropping must be identical on each.
To complete the job and to create the
digital film use the moviola of "AVI
from frames"
The
example below was produced using the method described here and is in
cross-eyed format for freeviewing.
To save webspace, the number of
intermediate frames has been greatly reduced. In practice for fluid movement you
will need at least twice as many frames.
To summmarise: animation
type "I" is an animation that uses deformation as a
dynamic element and the stereo effect that the same deformation
produces. The dynamic deformations can be simultaneously applied
to both Layers because this does not present any viewing
difficulties. The deformation can also have a fixed elongation as
in the case of large perspective planes. You can see this
applied to the water of the lake in the film below using stereo
animation type "M". When wide planes are deformed and
there are some intermediate bodies in movement, the problem of vision
hierarchy arises. In other words the lake cannot be projected after
the boats. In the case of conflicts in the hierarchy it becomes
necessary to cut out of the deformed Layer further sections so that
the pieces are projected with a logical sequence.
Stereo
Animation type "M"
The example below employs
the two possible animations. Type "I" is concerned with
the horizontal translation of the upper Layer and the deformation of
the lake water while type "M" is applied to the two boats.
The two moving boats maintain a constant depth within the scene.
To maintain the constancy, it is essential that the two boats
have an identical horizontal-translation speed in the left and
right sequence. If one of the boats is faster than the other, it
would appear to change its depth location within the scene (To see the second
movie below).
