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Introduction |
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Those new to Pixels3D
must learn the basics of moving CVs of objects to create the
shapes we want. After writing my tutorial on the Chessboard,
I thought I would demonstrate in depth, the process of positioning
CVs. Think of CVs as anchors (like in Illustrator) or Vector
objects where objects are based on the curvature of each CVs
position in 3d space instead of 2d. Each object is based on
a row, a column or both of CVs, and the curvature between CVs
can be of any spline type. To make more sense of this use a
plain Shape>Spline tool and create a spline using
the different spline types.
Pixels3D
| studio | v3.6 and above
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The
Constraints Palette |
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The Constraints Palette
lies under the tool palette. With it, we can Constrain, Mirror,
or Tag each CV for modifications. Pressed means that the specified
controller is being used.
Point -
control one CV at a time.
U Col - control column of CV selected.
V Col - control row of CV selected.
Mir U - mirror CV selected on the opposite column.
Mir V - mirror CV selected on the opposite row.
Mir
UV - mirror CV selected on both the opposite column and row.
X Axis - constrict CV selected on the X plane.
Y Axis - constrict CV selected on the Y plane.
Z Axis - constrict CV selected on the Z plane.
Tag - control multiple CV's selected on one object.
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Push-Pull
Tool |
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The most basic form
of moving a CV around is using the Reshape>Push-Pull
tool. CMD-select a CV on a mesh for example, then select
Reshape>Push-Pull and move the CV around.
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Constraining |
| Uncheck
both the X and Z Axis constraints. Move the CV and see how its
constrained along the Y axis only. This can help us keep things
under control..
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Mirroring |
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Check Mir U
and then again move the CV, see how its mirrored across from
itself. This is greate for keeping our object Symetrical.
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Controlling
Multiple CVs |
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One way of controlling
multiple CVs around the selected CV is to utilize the Flex Window
( CMD-b ).
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Flexing |
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If we where to set
the control of the U to 1 and moved our Cv we would pull other
CV's along the U with our selected one. Also by clicking on
the various curve icons, we can modify the falloff curve of
the flex.
Pictured on the
right are the 4 different forms.

Picture using both U and V to max 1.
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Using
Columns and Rows |
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Another method of
controllng multiple CVs is to use the U or V Col to
move our selected plus its column or row it resides in.
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Using
Tags |
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The most powerful
method of moving multiple CVs around is using Tag mode with
Control>Move. Just like selecting/unselecting CVs
on an object you can shift click singled out CVs and then move
them around much like the Push-Pull tool. However, the
flex tool does not work using Tags.
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