1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Design Studio documentation.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
**
****************************************************************************/
/*!
\previouspage studio-3d-components.html
\page studio-3d-node.html
\nextpage studio-3d-model.html
\title Setting Node Properties
You can set the opacity, visibility, and transform properties of a 3D
component in the \uicontrol Properties view.
\section1 Setting Component Opacity and Visibility
All components have an \uicontrol Opacity value applied to them. The opacity
of 100 makes a component fully opaque, while the opacity of 0 prevents a
component from rendering at all.
Just as modifying the position or rotation of a parent component affects
all child components, opacity is multiplicatively cumulative through
the transform hierarchy. A cube that is 50\% opaque inside a group that
is 80\% opaque renders with an equivalent apperance of 40\% opacity
(\c{0.8 * 0.5 = 0.4}). Setting the opacity of a group to 0 prevents
any descendants within the group from rendering.
The \uicontrol Visibility property provides an alternative way to hide and
show components. It is useful when you want to show a component in a
particular state, but hide it in another state, for example.
\section1 Setting Transform Properties
The value of the \uicontrol Translation property contains the position
translation of the component in the local coordinate space established by
the parent component. The \uicontrol Orientation property specifies whether
the left-handed or right-handed coordinate system is used.
In the y-up left-handed coordinate system, increasing the value of x
moves the component to the right, as seen from the default camera location,
whereas increasing the value of y moves the component up. Increasing the
value of z moves the component away from the camera.
The value of the \uicontrol Rotation parameter sets the local rotation of
the component in the space established by the parent component. The
\uicontrol {Rotation order} property specifies whether the left-handed or
right-handed (the values with \e r) rotation about the x, y, and z axes
is applied, and the order in which the rotation is applied on each axis.
The value of the \uicontrol Scale property sets the local scale of the
component in the space established by the parent component. An odd number
of negative scale values causes the component to render \e {inside-out},
which cannot be seen due to backface-culling.
The value of the \uicontrol Pivot property sets the local pivot offset for
the component. You can think of the pivot as offsetting the geometry for the
component away from the origin, allowing a component to rotate and scale
around a point other than its local origin. Pivot values are applied before
scaling and rotation values.
A line is drawn in the 3D editor from the pivot point to the center of the
component to provide a visual connection between them.
*/
|
