summaryrefslogtreecommitdiffstats
path: root/src/render/framegraph/qnopicking.cpp
blob: ddc649dd093bc5d7457b1b9f86a3c4bf2171244f (plain)
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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/****************************************************************************
**
** Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/

#include "qnopicking.h"


QT_BEGIN_NAMESPACE

namespace Qt3DRender {

/*!
    \class Qt3DRender::QNoPicking
    \inmodule Qt3DRender
    \since 5.14

    \brief When a Qt3DRender::QNoPicking node is present in a FrameGraph
    branch, this prevents the render aspect from performing picking selection
    for the given branch.

    When disabled, a Qt3DRender::QNoPicking node won't prevent picking from
    being performed. Toggling the enabled property is therefore a way to make a
    Qt3DRender::QNoPicking active or inactive.

    When using multiple subviewports in the FrameGraph, QNoPicking can be
    useful to prevent picking conflicts between overlapping viewports or non
    visual ones. It can also be used as an optimization to prevent unnecessary
    work for hidden viewports or for sections of the scenes which don't require
    any picking.

    \code
    Qt3DRender::QViewport *viewport = new Qt3DRender::QViewport();
    Qt3DRender::QCameraSelector *cameraSelector = new Qt3DRender::QCameraSelector(viewport);
    Qt3DRender::QNoPicking *noPicking = new Qt3DRender::QNoPicking(cameraSelector);

    Qt3DRender::QClearBuffers *clearBuffers = new Qt3DRender::QClearBuffers(noPicking);
    clearBuffers->setBuffers(Qt3DRender::QClearBuffers::ColorDepthBuffer);

    Qt3DRender::QRenderPassFilter *mainPass = new Qt3DRender::QRenderPassFilter(cameraSelector);
    ....
    Qt3DRender::QRenderPassFilter *previewPass = new Qt3DRender::QRenderPassFilter(cameraSelector);
    ....
    \endcode
    \sa Qt3DRender::QObjectPicker, Qt3DRender::QRayCaster, Qt3DRender::QScreenRayCaster
 */

/*!
    \qmltype NoPicking
    \instantiates Qt3DRender::QNoPicking
    \inherits FrameGraphNode
    \inqmlmodule Qt3D.Render
    \since 5.14

    \brief When a NoPicking node is present in a FrameGraph branch, this
    prevents the render aspect from performing picking selection for the given
    branch.

    When disabled, a NoPicking node won't prevent picking from being performed.
    Toggling the enabled property is therefore a way to make a NoPicking active
    or inactive.

    When using multiple subviewports in the FrameGraph, NoPicking can be useful
    to prevent picking conflicts between overlapping viewports or non visual
    ones. It can also be used as an optimization to prevent unnecessary work for
    hidden viewports or for sections of the scenes which don't require any
    picking.


    \code

    Viewport {
        CameraSelector {
            NoPicking {
                ClearBuffers {
                    buffers: ClearBuffers.ColorDepthBuffer
                    NoDraw { } // Prevents from drawing anything
                }
                RenderPassFilter {
                    ...
                }
                RenderPassFilter {
                    ...
                }
            }
        }
    }

    \endcode
    \sa ObjectPicker, RayCaster, ScreenRayCaster

*/

QNoPicking::QNoPicking(Qt3DCore::QNode *parent)
    : QFrameGraphNode(parent)
{
}

QNoPicking::~QNoPicking()
{
}

} // namespace Qt3DRender

QT_END_NAMESPACE