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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.Controls
import QtQuick.Layouts
import SceneGraphRendering
Item {
width: 800
height: 600
// The checkers background
ShaderEffect {
id: tileBackground
anchors.fill: parent
property real tileSize: 16
property color color1: Qt.rgba(0.9, 0.9, 0.9, 1);
property color color2: Qt.rgba(0.85, 0.85, 0.85, 1);
property size pixelSize: Qt.size(width / tileSize, height / tileSize);
fragmentShader: "qrc:/scenegraph/rhitextureitem/shaders/checker.frag.qsb"
}
//! [0]
ExampleRhiItem {
id: renderer
anchors.fill: parent
anchors.margins: 10
mirrorVertically: cbMirror.checked
sampleCount: cbMSAA.checked ? 4 : 1
fixedColorBufferWidth: cbSize.checked ? slSize.value.toFixed(0) : 0
fixedColorBufferHeight: cbSize.checked ? slSize.value.toFixed(0) : 0
alphaBlending: cbBlend.checked
colorBufferFormat: rdFormatRGBA8.checked ? ExampleRhiItem.TextureFormat.RGBA8
: rdFormatFP16.checked ? ExampleRhiItem.TextureFormat.RGBA16F
: rdFormatFP32.checked ? ExampleRhiItem.TextureFormat.RGBA32F
: ExampleRhiItem.TextureFormat.RGB10A2
// custom properties provided by the QQuickRhiItem subclass: angle, backgroundAlpha
NumberAnimation on angle {
from: 0
to: 360
duration: 5000
loops: Animation.Infinite
running: cbAnimate.checked
}
backgroundAlpha: slAlpha.value
//! [0]
// The transform is just to show something interesting..
transform: [
Rotation { id: rotation; axis.x: 0; axis.z: 0; axis.y: 1; angle: 0; origin.x: renderer.width / 2; origin.y: renderer.height / 2; },
Translate { id: txOut; x: -renderer.width / 2; y: -renderer.height / 2 },
Scale { id: scale; },
Translate { id: txIn; x: renderer.width / 2; y: renderer.height / 2 }
]
}
// Just to show something interesting
SequentialAnimation {
PauseAnimation { duration: 5000 }
ParallelAnimation {
NumberAnimation { target: scale; property: "xScale"; to: 0.6; duration: 1000; easing.type: Easing.InOutBack }
NumberAnimation { target: scale; property: "yScale"; to: 0.6; duration: 1000; easing.type: Easing.InOutBack }
}
NumberAnimation { target: rotation; property: "angle"; to: 80; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: rotation; property: "angle"; to: -80; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: rotation; property: "angle"; to: 0; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: renderer; property: "opacity"; to: 0.5; duration: 1000; easing.type: Easing.InOutCubic }
PauseAnimation { duration: 1000 }
NumberAnimation { target: renderer; property: "opacity"; to: 1.0; duration: 1000; easing.type: Easing.InOutCubic }
ParallelAnimation {
NumberAnimation { target: scale; property: "xScale"; to: 1; duration: 1000; easing.type: Easing.InOutBack }
NumberAnimation { target: scale; property: "yScale"; to: 1; duration: 1000; easing.type: Easing.InOutBack }
}
running: cbAnimate.checked
loops: Animation.Infinite
}
Rectangle {
id: labelFrame
anchors.margins: -10
radius: 5
color: "white"
border.color: "black"
anchors.fill: label
}
Text {
id: label
anchors.bottom: renderer.bottom
anchors.left: renderer.left
anchors.right: renderer.right
anchors.margins: 20
wrapMode: Text.WordWrap
text: qsTr("The triangle on the blue background is rendered by working directly the QRhi APIs on the scene graph render thread. The custom QQuickItem subclasses QQuickRhiItem, and it in effect draws a quad textured with the QRhiTexture containing the custom 3D rendering. Thanks to being a true QQuickItem, 2D/2.5D transforms, blending/opacity, stacking, clipping, etc. all work as usual.")
}
RowLayout {
anchors.top: renderer.top
anchors.right: renderer.right
anchors.margins: 10
Item {
id: settingsButton
implicitWidth: 64
implicitHeight: 64
Image {
anchors.centerIn: parent
source: "icon_settings.png"
}
HoverHandler {
id: hoverHandler
}
}
Text {
Layout.alignment: Qt.AlignVCenter
text: settingsDrawer.title
color: "white"
font.pointSize: 16
}
TapHandler {
// qmllint disable signal-handler-parameters
onTapped: settingsDrawer.isOpen = !settingsDrawer.isOpen;
// qmllint enable signal-handler-parameters
}
}
SettingsDrawer {
id: settingsDrawer
title: qsTr("Settings")
isOpen: false
isLandscape: true
width: isLandscape ? implicitWidth * 1.2 : parent.width
height: isLandscape ? parent.height * 0.8 : parent.height * 0.33
CheckBox {
id: cbAnimate
text: qsTr("Animate")
checked: true
}
CheckBox {
id: cbMirror
text: qsTr("Mirror vertically")
checked: false
}
CheckBox {
id: cbMSAA
text: qsTr("Enable 4x MSAA")
checked: false
}
CheckBox {
id: cbSize
text: qsTr("Use fixed size")
checked: false
}
RowLayout {
Label {
text: qsTr("Texture size")
}
Slider {
id: slSize
enabled: cbSize.checked
from: 8
to: 2048
value: 128
Layout.fillWidth: false
}
}
Label {
text: qsTr("Backing texture size: %1x%2 pixels").arg(renderer.effectiveColorBufferSize.width).arg(renderer.effectiveColorBufferSize.height)
}
Label {
text: qsTr("Item logical size: %1x%2").arg(renderer.width).arg(renderer.height)
}
CheckBox {
id: cbBlend
text: qsTr("Force alpha blending\nregardless of item opacity")
checked: false
}
RowLayout {
Label {
text: qsTr("Background alpha")
}
Slider {
id: slAlpha
from: 0
to: 1.0
value: 1.0
Layout.fillWidth: false
}
}
Label {
text: qsTr("Background alpha: %1").arg(renderer.backgroundAlpha.toFixed(2))
}
Label {
text: qsTr("Item opacity: %1").arg(renderer.opacity.toFixed(2))
}
Label {
property string apiName:
if (GraphicsInfo.api === GraphicsInfo.OpenGL)
"OpenGL";
else if (GraphicsInfo.api === GraphicsInfo.Direct3D11)
"D3D11";
else if (GraphicsInfo.api === GraphicsInfo.Direct3D12)
"D3D12";
else if (GraphicsInfo.api === GraphicsInfo.Vulkan)
"Vulkan";
else if (GraphicsInfo.api === GraphicsInfo.Metal)
"Metal";
else if (GraphicsInfo.api === GraphicsInfo.Null)
"Null";
else
"Unknown API";
text: "The underlying graphics API is " + apiName
}
GroupBox {
title: qsTr("Texture format")
ColumnLayout {
RadioButton {
id: rdFormatRGBA8
text: qsTr("8-bit RGBA")
checked: true
Layout.fillWidth: false
}
RadioButton {
id: rdFormatFP16
text: qsTr("Half-float RGBA")
Layout.fillWidth: false
}
RadioButton {
id: rdFormatFP32
text: qsTr("Float RGBA")
Layout.fillWidth: false
}
RadioButton {
id: rdFormatRGB10A2
text: qsTr("10-bit RGB, 2-bit A")
Layout.fillWidth: false
}
}
}
}
}
|