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/****************************************************************************
**
** Copyright (C) 1993-2009 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:FDL$
** 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.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\title Studio: Basic Objects Palette
\page studio-basic-objects-palette.html
\ingroup qt3dstudio-studio
The \e {Basic Objects Palette} provides a mechanism for creating objects
unique to a presentation, not represented by a file on disk in your
\l{studio-project-palette.html}{Project Palette}.
\target using-the-objects
\section1 Using the Objects
To use an object in your presentation, drag it from the Basic Objects
palette into either the
\l{studio-scene-view-and-matte.html}{scene view} or
\l{studio-timeline-palette.html}{Timeline palette}. A corresponding
element will be created.
\b Tip: You often want to create new objects on the
\l{studio-slide-palette.html#the-master-slide}{Master Slide}. Hold
down the *\e{Alt} key when dropping the object to have it created on
the Master Slide for you.
\target model-primitives
\section1 Model Primitives
\table
\row
\li \image Studio-Basic-Rectangle.png
\li \image Studio-Basic-Sphere.png
\li \image Studio-Basic-Cube.png
\row
\li \image Studio-Basic-Cylinder.png
\li \image Studio-Basic-Cone.png
\li
\endtable
The Rectangle, Sphere, Cube, Cylinder, and Cone primitives provide a way
to quickly add 3D models to your scene without a 3D modeling program.
Adding one of these files does not add content to your models folder,
but instead references an internal model.
\section1 Component
\table
\row
\li \image Studio-Basic-Component.png
\endtable
Components are somewhat like mini-scenes. Although they are 3D geometry
(not a 2D composition of rendered layers), they have their own slides
and timelines.
You may alternatively create a new component in your scene by
right-clicking on an element in the Timeline palette and choosing
\c{Make Component} from the context menu. This will wrap the
element inside a new component, allowing you to control its visual state
and animation separate from the rest of its siblings.
\section1 Group
\table
\row
\li \image Studio-Basic-Group.png
\endtable
A group is an empty transform element. Attaching models to the group
(placing them as children of the group in the Timeline palette) allows
you to move/rotate/scale/hide the group and have this affect all items
within it. Note that because groups affect the transformation of their
children they do have an effect on runtime speed. Though the
performance impact is very slight, you should avoid using groups
\e{solely} for conceptual organization.
To group existing objects, selected them in the scene graph or in the scene view
(\c{Ctrl + left mouse click} to select multiple objects), then do one
of the following:
\list
\li Right-click any of the selected objects in the scene graph and select
\uicontrol{Group Objects} from the context menu.
\li Select \uicontrol{Edit > Group Objects} from the menu bar.
\li Press \c{Ctrl + G}.
This will create a group and move the selected objects into the group.
\endlist
\section1 Text
\table
\row
\li \image Studio-Basic-Text.png
\endtable
A text element is a flat plane of text placed in 3D space. It is
basically a transparent image displayed on a rectangle, where the image
and rectangle size are dynamically updated whenever the text to be
displayed is changed.
\note If you drag out a text object with no existing fonts in your
project, Studio is forced to add a font file ("TitilliumWeb") to your
project to support the display of text.
\target layers-cameras-lights
\section1 Cameras and Lights
\table
\row
\li \image Studio-Basic-Camera.png
\li \image Studio-Basic-Light.png
\endtable
Each layer has exactly one active camera that is used to render the
elements inside the layer. If you place multiple cameras inside a layer,
the first camera found that is 'active' (eyeballed on and timebar
present) is used to render the layer. You could thus use different
non-master cameras on different slides to switch between various views,
though it is usually easier to just
\l{studio-inspector-palette.html#unlinking-from-the-master-slide}
{unlink the properties} of a single camera on the
\l{studio-slide-palette.html#the-master-slide}{master slide}.
Each layer may have zero, one, or two lights on it. Lights are used to
illuminate the models in your scene so that they can be seen. If you
have zero lights you will need to set the
\l{studio-inspector-palette.html#material-properties}{Lighting property
for your materials} to \c{None} in order to see your models.
*/
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