blob: b74a77873733b9c8d078ecd246d8c78ed899dc17 (
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
|
/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "framegraphvisitor.h"
#include "framegraphnode.h"
#include "renderer.h"
namespace Qt3D {
namespace Render {
FrameGraphVisitor::FrameGraphVisitor()
{
}
void FrameGraphVisitor::traverse(FrameGraphNode *root, Renderer *renderer)
{
m_renderer = renderer;
// Kick off the traversal
FrameGraphNode *node = root;
visit(node);
}
void FrameGraphVisitor::visit(FrameGraphNode *node)
{
// Apply the state from this node
node->apply();
// Recurse to children (if we have any), otherwise if this is a leaf node,
// initiate a rendering from the current camera
if (node->childCount()) {
for (int i = 0; i < node->childCount(); ++i) {
FrameGraphNode *n = node->child(i);
visit(n);
}
} else {
// Leaf node. All state is applied and renderer context configured.
// Go render something
m_renderer->doRender();
}
// Undo the applied state as we exit this node
node->revert();
}
} // namespace Render
} // namespace Qt3D
|
