summaryrefslogtreecommitdiffstats
path: root/demos/boxes/scene.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'demos/boxes/scene.cpp')
-rw-r--r--demos/boxes/scene.cpp1085
1 files changed, 0 insertions, 1085 deletions
diff --git a/demos/boxes/scene.cpp b/demos/boxes/scene.cpp
deleted file mode 100644
index 39cd0fcafd..0000000000
--- a/demos/boxes/scene.cpp
+++ /dev/null
@@ -1,1085 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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, Nokia gives you certain additional
-** rights. These rights are described in the Nokia 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.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QDebug>
-#include "scene.h"
-#include <QtGui/qmatrix4x4.h>
-#include <QtGui/qvector3d.h>
-
-#include "3rdparty/fbm.h"
-
-void checkGLErrors(const QString& prefix)
-{
- switch (glGetError()) {
- case GL_NO_ERROR:
- //qDebug() << prefix << tr("No error.");
- break;
- case GL_INVALID_ENUM:
- qDebug() << prefix << QObject::tr("Invalid enum.");
- break;
- case GL_INVALID_VALUE:
- qDebug() << prefix << QObject::tr("Invalid value.");
- break;
- case GL_INVALID_OPERATION:
- qDebug() << prefix << QObject::tr("Invalid operation.");
- break;
- case GL_STACK_OVERFLOW:
- qDebug() << prefix << QObject::tr("Stack overflow.");
- break;
- case GL_STACK_UNDERFLOW:
- qDebug() << prefix << QObject::tr("Stack underflow.");
- break;
- case GL_OUT_OF_MEMORY:
- qDebug() << prefix << QObject::tr("Out of memory.");
- break;
- default:
- qDebug() << prefix << QObject::tr("Unknown error.");
- break;
- }
-}
-
-//============================================================================//
-// ColorEdit //
-//============================================================================//
-
-ColorEdit::ColorEdit(QRgb initialColor, int id)
- : m_color(initialColor), m_id(id)
-{
- QHBoxLayout *layout = new QHBoxLayout;
- setLayout(layout);
- layout->setContentsMargins(0, 0, 0, 0);
-
- m_lineEdit = new QLineEdit(QString::number(m_color, 16));
- layout->addWidget(m_lineEdit);
-
- m_button = new QFrame;
- QPalette palette = m_button->palette();
- palette.setColor(QPalette::Window, QColor(m_color));
- m_button->setPalette(palette);
- m_button->setAutoFillBackground(true);
- m_button->setMinimumSize(32, 0);
- m_button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
- m_button->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
- layout->addWidget(m_button);
-
- connect(m_lineEdit, SIGNAL(editingFinished()), this, SLOT(editDone()));
-}
-
-void ColorEdit::editDone()
-{
- bool ok;
- QRgb newColor = m_lineEdit->text().toUInt(&ok, 16);
- if (ok)
- setColor(newColor);
-}
-
-void ColorEdit::mousePressEvent(QMouseEvent *event)
-{
- if (event->button() == Qt::LeftButton) {
- QColor color(m_color);
- QColorDialog dialog(color, 0);
- dialog.setOption(QColorDialog::ShowAlphaChannel, true);
-// The ifdef block is a workaround for the beta, TODO: remove when bug 238525 is fixed
-#ifdef Q_WS_MAC
- dialog.setOption(QColorDialog::DontUseNativeDialog, true);
-#endif
- dialog.move(280, 120);
- if (dialog.exec() == QDialog::Rejected)
- return;
- QRgb newColor = dialog.selectedColor().rgba();
- if (newColor == m_color)
- return;
- setColor(newColor);
- }
-}
-
-void ColorEdit::setColor(QRgb color)
-{
- m_color = color;
- m_lineEdit->setText(QString::number(m_color, 16)); // "Clean up" text
- QPalette palette = m_button->palette();
- palette.setColor(QPalette::Window, QColor(m_color));
- m_button->setPalette(palette);
- emit colorChanged(m_color, m_id);
-}
-
-//============================================================================//
-// FloatEdit //
-//============================================================================//
-
-FloatEdit::FloatEdit(float initialValue, int id)
- : m_value(initialValue), m_id(id)
-{
- QHBoxLayout *layout = new QHBoxLayout;
- setLayout(layout);
- layout->setContentsMargins(0, 0, 0, 0);
-
- m_lineEdit = new QLineEdit(QString::number(m_value));
- layout->addWidget(m_lineEdit);
-
- connect(m_lineEdit, SIGNAL(editingFinished()), this, SLOT(editDone()));
-}
-
-void FloatEdit::editDone()
-{
- bool ok;
- float newValue = m_lineEdit->text().toFloat(&ok);
- if (ok) {
- m_value = newValue;
- m_lineEdit->setText(QString::number(m_value)); // "Clean up" text
- emit valueChanged(m_value, m_id);
- }
-}
-
-//============================================================================//
-// TwoSidedGraphicsWidget //
-//============================================================================//
-
-TwoSidedGraphicsWidget::TwoSidedGraphicsWidget(QGraphicsScene *scene)
- : QObject(scene)
- , m_current(0)
- , m_angle(0)
- , m_delta(0)
-{
- for (int i = 0; i < 2; ++i)
- m_proxyWidgets[i] = 0;
-}
-
-void TwoSidedGraphicsWidget::setWidget(int index, QWidget *widget)
-{
- if (index < 0 || index >= 2)
- {
- qWarning("TwoSidedGraphicsWidget::setWidget: Index out of bounds, index == %d", index);
- return;
- }
-
- GraphicsWidget *proxy = new GraphicsWidget;
- proxy->setWidget(widget);
-
- if (m_proxyWidgets[index])
- delete m_proxyWidgets[index];
- m_proxyWidgets[index] = proxy;
-
- proxy->setCacheMode(QGraphicsItem::ItemCoordinateCache);
- proxy->setZValue(1e30); // Make sure the dialog is drawn on top of all other (OpenGL) items
-
- if (index != m_current)
- proxy->setVisible(false);
-
- qobject_cast<QGraphicsScene *>(parent())->addItem(proxy);
-}
-
-QWidget *TwoSidedGraphicsWidget::widget(int index)
-{
- if (index < 0 || index >= 2)
- {
- qWarning("TwoSidedGraphicsWidget::widget: Index out of bounds, index == %d", index);
- return 0;
- }
- return m_proxyWidgets[index]->widget();
-}
-
-void TwoSidedGraphicsWidget::flip()
-{
- m_delta = (m_current == 0 ? 9 : -9);
- animateFlip();
-}
-
-void TwoSidedGraphicsWidget::animateFlip()
-{
- m_angle += m_delta;
- if (m_angle == 90) {
- int old = m_current;
- m_current ^= 1;
- m_proxyWidgets[old]->setVisible(false);
- m_proxyWidgets[m_current]->setVisible(true);
- m_proxyWidgets[m_current]->setGeometry(m_proxyWidgets[old]->geometry());
- }
-
- QRectF r = m_proxyWidgets[m_current]->boundingRect();
- m_proxyWidgets[m_current]->setTransform(QTransform()
- .translate(r.width() / 2, r.height() / 2)
- .rotate(m_angle - 180 * m_current, Qt::YAxis)
- .translate(-r.width() / 2, -r.height() / 2));
-
- if ((m_current == 0 && m_angle > 0) || (m_current == 1 && m_angle < 180))
- QTimer::singleShot(25, this, SLOT(animateFlip()));
-}
-
-QVariant GraphicsWidget::itemChange(GraphicsItemChange change, const QVariant &value)
-{
- if (change == ItemPositionChange && scene()) {
- QRectF rect = boundingRect();
- QPointF pos = value.toPointF();
- QRectF sceneRect = scene()->sceneRect();
- if (pos.x() + rect.left() < sceneRect.left())
- pos.setX(sceneRect.left() - rect.left());
- else if (pos.x() + rect.right() >= sceneRect.right())
- pos.setX(sceneRect.right() - rect.right());
- if (pos.y() + rect.top() < sceneRect.top())
- pos.setY(sceneRect.top() - rect.top());
- else if (pos.y() + rect.bottom() >= sceneRect.bottom())
- pos.setY(sceneRect.bottom() - rect.bottom());
- return pos;
- }
- return QGraphicsProxyWidget::itemChange(change, value);
-}
-
-void GraphicsWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
-{
- setCacheMode(QGraphicsItem::NoCache);
- setCacheMode(QGraphicsItem::ItemCoordinateCache);
- QGraphicsProxyWidget::resizeEvent(event);
-}
-
-void GraphicsWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
-{
- painter->setRenderHint(QPainter::Antialiasing, false);
- QGraphicsProxyWidget::paint(painter, option, widget);
- //painter->setRenderHint(QPainter::Antialiasing, true);
-}
-
-//============================================================================//
-// RenderOptionsDialog //
-//============================================================================//
-
-RenderOptionsDialog::RenderOptionsDialog()
- : QDialog(0, Qt::CustomizeWindowHint | Qt::WindowTitleHint)
-{
- setWindowOpacity(0.75);
- setWindowTitle(tr("Options (double click to flip)"));
- QGridLayout *layout = new QGridLayout;
- setLayout(layout);
- layout->setColumnStretch(1, 1);
-
- int row = 0;
-
- QCheckBox *check = new QCheckBox(tr("Dynamic cube map"));
- check->setCheckState(Qt::Unchecked);
- // Dynamic cube maps are only enabled when multi-texturing and render to texture are available.
- check->setEnabled(glActiveTexture && glGenFramebuffersEXT);
- connect(check, SIGNAL(stateChanged(int)), this, SIGNAL(dynamicCubemapToggled(int)));
- layout->addWidget(check, 0, 0, 1, 2);
- ++row;
-
- QPalette palette;
-
- // Load all .par files
- // .par files have a simple syntax for specifying user adjustable uniform variables.
- QSet<QByteArray> uniforms;
- QList<QString> filter = QStringList("*.par");
- QList<QFileInfo> files = QDir(":/res/boxes/").entryInfoList(filter, QDir::Files | QDir::Readable);
-
- foreach (QFileInfo fileInfo, files) {
- QFile file(fileInfo.absoluteFilePath());
- if (file.open(QIODevice::ReadOnly)) {
- while (!file.atEnd()) {
- QList<QByteArray> tokens = file.readLine().simplified().split(' ');
- QList<QByteArray>::const_iterator it = tokens.begin();
- if (it == tokens.end())
- continue;
- QByteArray type = *it;
- if (++it == tokens.end())
- continue;
- QByteArray name = *it;
- bool singleElement = (tokens.size() == 3); // type, name and one value
- char counter[10] = "000000000";
- int counterPos = 8; // position of last digit
- while (++it != tokens.end()) {
- m_parameterNames << name;
- if (!singleElement) {
- m_parameterNames.back() += "[";
- m_parameterNames.back() += counter + counterPos;
- m_parameterNames.back() += "]";
- int j = 8; // position of last digit
- ++counter[j];
- while (j > 0 && counter[j] > '9') {
- counter[j] = '0';
- ++counter[--j];
- }
- if (j < counterPos)
- counterPos = j;
- }
-
- if (type == "color") {
- layout->addWidget(new QLabel(m_parameterNames.back()));
- bool ok;
- ColorEdit *colorEdit = new ColorEdit(it->toUInt(&ok, 16), m_parameterNames.size() - 1);
- m_parameterEdits << colorEdit;
- layout->addWidget(colorEdit);
- connect(colorEdit, SIGNAL(colorChanged(QRgb,int)), this, SLOT(setColorParameter(QRgb,int)));
- ++row;
- } else if (type == "float") {
- layout->addWidget(new QLabel(m_parameterNames.back()));
- bool ok;
- FloatEdit *floatEdit = new FloatEdit(it->toFloat(&ok), m_parameterNames.size() - 1);
- m_parameterEdits << floatEdit;
- layout->addWidget(floatEdit);
- connect(floatEdit, SIGNAL(valueChanged(float,int)), this, SLOT(setFloatParameter(float,int)));
- ++row;
- }
- }
- }
- file.close();
- }
- }
-
- layout->addWidget(new QLabel(tr("Texture:")));
- m_textureCombo = new QComboBox;
- connect(m_textureCombo, SIGNAL(currentIndexChanged(int)), this, SIGNAL(textureChanged(int)));
- layout->addWidget(m_textureCombo);
- ++row;
-
- layout->addWidget(new QLabel(tr("Shader:")));
- m_shaderCombo = new QComboBox;
- connect(m_shaderCombo, SIGNAL(currentIndexChanged(int)), this, SIGNAL(shaderChanged(int)));
- layout->addWidget(m_shaderCombo);
- ++row;
-
- layout->setRowStretch(row, 1);
-}
-
-int RenderOptionsDialog::addTexture(const QString &name)
-{
- m_textureCombo->addItem(name);
- return m_textureCombo->count() - 1;
-}
-
-int RenderOptionsDialog::addShader(const QString &name)
-{
- m_shaderCombo->addItem(name);
- return m_shaderCombo->count() - 1;
-}
-
-void RenderOptionsDialog::emitParameterChanged()
-{
- foreach (ParameterEdit *edit, m_parameterEdits)
- edit->emitChange();
-}
-
-void RenderOptionsDialog::setColorParameter(QRgb color, int id)
-{
- emit colorParameterChanged(m_parameterNames[id], color);
-}
-
-void RenderOptionsDialog::setFloatParameter(float value, int id)
-{
- emit floatParameterChanged(m_parameterNames[id], value);
-}
-
-void RenderOptionsDialog::mouseDoubleClickEvent(QMouseEvent *event)
-{
- if (event->button() == Qt::LeftButton)
- emit doubleClicked();
-}
-
-//============================================================================//
-// ItemDialog //
-//============================================================================//
-
-ItemDialog::ItemDialog()
- : QDialog(0, Qt::CustomizeWindowHint | Qt::WindowTitleHint)
-{
- setWindowTitle(tr("Items (double click to flip)"));
- setWindowOpacity(0.75);
- resize(160, 100);
-
- QVBoxLayout *layout = new QVBoxLayout;
- setLayout(layout);
- QPushButton *button;
-
- button = new QPushButton(tr("Add Qt box"));
- layout->addWidget(button);
- connect(button, SIGNAL(clicked()), this, SLOT(triggerNewQtBox()));
-
- button = new QPushButton(tr("Add circle"));
- layout->addWidget(button);
- connect(button, SIGNAL(clicked()), this, SLOT(triggerNewCircleItem()));
-
- button = new QPushButton(tr("Add square"));
- layout->addWidget(button);
- connect(button, SIGNAL(clicked()), this, SLOT(triggerNewSquareItem()));
-
- layout->addStretch(1);
-}
-
-void ItemDialog::triggerNewQtBox()
-{
- emit newItemTriggered(QtBoxItem);
-}
-
-void ItemDialog::triggerNewCircleItem()
-{
- emit newItemTriggered(CircleItem);
-}
-
-void ItemDialog::triggerNewSquareItem()
-{
- emit newItemTriggered(SquareItem);
-}
-
-void ItemDialog::mouseDoubleClickEvent(QMouseEvent *event)
-{
- if (event->button() == Qt::LeftButton)
- emit doubleClicked();
-}
-
-//============================================================================//
-// Scene //
-//============================================================================//
-
-const static char environmentShaderText[] =
- "uniform samplerCube env;"
- "void main() {"
- "gl_FragColor = textureCube(env, gl_TexCoord[1].xyz);"
- "}";
-
-Scene::Scene(int width, int height, int maxTextureSize)
- : m_distExp(600)
- , m_frame(0)
- , m_maxTextureSize(maxTextureSize)
- , m_currentShader(0)
- , m_currentTexture(0)
- , m_dynamicCubemap(false)
- , m_updateAllCubemaps(true)
- , m_box(0)
- , m_vertexShader(0)
- , m_environmentShader(0)
- , m_environmentProgram(0)
-{
- setSceneRect(0, 0, width, height);
-
- m_trackBalls[0] = TrackBall(0.05f, QVector3D(0, 1, 0), TrackBall::Sphere);
- m_trackBalls[1] = TrackBall(0.005f, QVector3D(0, 0, 1), TrackBall::Sphere);
- m_trackBalls[2] = TrackBall(0.0f, QVector3D(0, 1, 0), TrackBall::Plane);
-
- m_renderOptions = new RenderOptionsDialog;
- m_renderOptions->move(20, 120);
- m_renderOptions->resize(m_renderOptions->sizeHint());
-
- connect(m_renderOptions, SIGNAL(dynamicCubemapToggled(int)), this, SLOT(toggleDynamicCubemap(int)));
- connect(m_renderOptions, SIGNAL(colorParameterChanged(QString,QRgb)), this, SLOT(setColorParameter(QString,QRgb)));
- connect(m_renderOptions, SIGNAL(floatParameterChanged(QString,float)), this, SLOT(setFloatParameter(QString,float)));
- connect(m_renderOptions, SIGNAL(textureChanged(int)), this, SLOT(setTexture(int)));
- connect(m_renderOptions, SIGNAL(shaderChanged(int)), this, SLOT(setShader(int)));
-
- m_itemDialog = new ItemDialog;
- connect(m_itemDialog, SIGNAL(newItemTriggered(ItemDialog::ItemType)), this, SLOT(newItem(ItemDialog::ItemType)));
-
- TwoSidedGraphicsWidget *twoSided = new TwoSidedGraphicsWidget(this);
- twoSided->setWidget(0, m_renderOptions);
- twoSided->setWidget(1, m_itemDialog);
-
- connect(m_renderOptions, SIGNAL(doubleClicked()), twoSided, SLOT(flip()));
- connect(m_itemDialog, SIGNAL(doubleClicked()), twoSided, SLOT(flip()));
-
- addItem(new QtBox(64, width - 64, height - 64));
- addItem(new QtBox(64, width - 64, 64));
- addItem(new QtBox(64, 64, height - 64));
- addItem(new QtBox(64, 64, 64));
-
- initGL();
-
- m_timer = new QTimer(this);
- m_timer->setInterval(20);
- connect(m_timer, SIGNAL(timeout()), this, SLOT(update()));
- m_timer->start();
-
- m_time.start();
-}
-
-Scene::~Scene()
-{
- if (m_box)
- delete m_box;
- foreach (GLTexture *texture, m_textures)
- if (texture) delete texture;
- if (m_mainCubemap)
- delete m_mainCubemap;
- foreach (QGLShaderProgram *program, m_programs)
- if (program) delete program;
- if (m_vertexShader)
- delete m_vertexShader;
- foreach (QGLShader *shader, m_fragmentShaders)
- if (shader) delete shader;
- foreach (GLRenderTargetCube *rt, m_cubemaps)
- if (rt) delete rt;
- if (m_environmentShader)
- delete m_environmentShader;
- if (m_environmentProgram)
- delete m_environmentProgram;
-}
-
-void Scene::initGL()
-{
- m_box = new GLRoundedBox(0.25f, 1.0f, 10);
-
- m_vertexShader = new QGLShader(QGLShader::Vertex);
- m_vertexShader->compileSourceFile(QLatin1String(":/res/boxes/basic.vsh"));
-
- QStringList list;
- list << ":/res/boxes/cubemap_posx.jpg" << ":/res/boxes/cubemap_negx.jpg" << ":/res/boxes/cubemap_posy.jpg"
- << ":/res/boxes/cubemap_negy.jpg" << ":/res/boxes/cubemap_posz.jpg" << ":/res/boxes/cubemap_negz.jpg";
- m_environment = new GLTextureCube(list, qMin(1024, m_maxTextureSize));
- m_environmentShader = new QGLShader(QGLShader::Fragment);
- m_environmentShader->compileSourceCode(environmentShaderText);
- m_environmentProgram = new QGLShaderProgram;
- m_environmentProgram->addShader(m_vertexShader);
- m_environmentProgram->addShader(m_environmentShader);
- m_environmentProgram->link();
-
- const int NOISE_SIZE = 128; // for a different size, B and BM in fbm.c must also be changed
- m_noise = new GLTexture3D(NOISE_SIZE, NOISE_SIZE, NOISE_SIZE);
- QRgb *data = new QRgb[NOISE_SIZE * NOISE_SIZE * NOISE_SIZE];
- memset(data, 0, NOISE_SIZE * NOISE_SIZE * NOISE_SIZE * sizeof(QRgb));
- QRgb *p = data;
- float pos[3];
- for (int k = 0; k < NOISE_SIZE; ++k) {
- pos[2] = k * (0x20 / (float)NOISE_SIZE);
- for (int j = 0; j < NOISE_SIZE; ++j) {
- for (int i = 0; i < NOISE_SIZE; ++i) {
- for (int byte = 0; byte < 4; ++byte) {
- pos[0] = (i + (byte & 1) * 16) * (0x20 / (float)NOISE_SIZE);
- pos[1] = (j + (byte & 2) * 8) * (0x20 / (float)NOISE_SIZE);
- *p |= (int)(128.0f * (noise3(pos) + 1.0f)) << (byte * 8);
- }
- ++p;
- }
- }
- }
- m_noise->load(NOISE_SIZE, NOISE_SIZE, NOISE_SIZE, data);
- delete[] data;
-
- m_mainCubemap = new GLRenderTargetCube(512);
-
- QStringList filter;
- QList<QFileInfo> files;
-
- // Load all .png files as textures
- m_currentTexture = 0;
- filter = QStringList("*.png");
- files = QDir(":/res/boxes/").entryInfoList(filter, QDir::Files | QDir::Readable);
-
- foreach (QFileInfo file, files) {
- GLTexture *texture = new GLTexture2D(file.absoluteFilePath(), qMin(256, m_maxTextureSize), qMin(256, m_maxTextureSize));
- if (texture->failed()) {
- delete texture;
- continue;
- }
- m_textures << texture;
- m_renderOptions->addTexture(file.baseName());
- }
-
- if (m_textures.size() == 0)
- m_textures << new GLTexture2D(qMin(64, m_maxTextureSize), qMin(64, m_maxTextureSize));
-
- // Load all .fsh files as fragment shaders
- m_currentShader = 0;
- filter = QStringList("*.fsh");
- files = QDir(":/res/boxes/").entryInfoList(filter, QDir::Files | QDir::Readable);
- foreach (QFileInfo file, files) {
- QGLShaderProgram *program = new QGLShaderProgram;
- QGLShader* shader = new QGLShader(QGLShader::Fragment);
- shader->compileSourceFile(file.absoluteFilePath());
- // The program does not take ownership over the shaders, so store them in a vector so they can be deleted afterwards.
- program->addShader(m_vertexShader);
- program->addShader(shader);
- if (!program->link()) {
- qWarning("Failed to compile and link shader program");
- qWarning("Vertex shader log:");
- qWarning() << m_vertexShader->log();
- qWarning() << "Fragment shader log ( file =" << file.absoluteFilePath() << "):";
- qWarning() << shader->log();
- qWarning("Shader program log:");
- qWarning() << program->log();
-
- delete shader;
- delete program;
- continue;
- }
-
- m_fragmentShaders << shader;
- m_programs << program;
- m_renderOptions->addShader(file.baseName());
-
- program->bind();
- m_cubemaps << ((program->uniformLocation("env") != -1) ? new GLRenderTargetCube(qMin(256, m_maxTextureSize)) : 0);
- program->release();
- }
-
- if (m_programs.size() == 0)
- m_programs << new QGLShaderProgram;
-
- m_renderOptions->emitParameterChanged();
-}
-
-static void loadMatrix(const QMatrix4x4& m)
-{
- // static to prevent glLoadMatrixf to fail on certain drivers
- static GLfloat mat[16];
- const qreal *data = m.constData();
- for (int index = 0; index < 16; ++index)
- mat[index] = data[index];
- glLoadMatrixf(mat);
-}
-
-static void multMatrix(const QMatrix4x4& m)
-{
- // static to prevent glMultMatrixf to fail on certain drivers
- static GLfloat mat[16];
- const qreal *data = m.constData();
- for (int index = 0; index < 16; ++index)
- mat[index] = data[index];
- glMultMatrixf(mat);
-}
-
-// If one of the boxes should not be rendered, set excludeBox to its index.
-// If the main box should not be rendered, set excludeBox to -1.
-void Scene::renderBoxes(const QMatrix4x4 &view, int excludeBox)
-{
- QMatrix4x4 invView = view.inverted();
-
- // If multi-texturing is supported, use three saplers.
- if (glActiveTexture) {
- glActiveTexture(GL_TEXTURE0);
- m_textures[m_currentTexture]->bind();
- glActiveTexture(GL_TEXTURE2);
- m_noise->bind();
- glActiveTexture(GL_TEXTURE1);
- } else {
- m_textures[m_currentTexture]->bind();
- }
-
- glDisable(GL_LIGHTING);
- glDisable(GL_CULL_FACE);
-
- QMatrix4x4 viewRotation(view);
- viewRotation(3, 0) = viewRotation(3, 1) = viewRotation(3, 2) = 0.0f;
- viewRotation(0, 3) = viewRotation(1, 3) = viewRotation(2, 3) = 0.0f;
- viewRotation(3, 3) = 1.0f;
- loadMatrix(viewRotation);
- glScalef(20.0f, 20.0f, 20.0f);
-
- // Don't render the environment if the environment texture can't be set for the correct sampler.
- if (glActiveTexture) {
- m_environment->bind();
- m_environmentProgram->bind();
- m_environmentProgram->setUniformValue("tex", GLint(0));
- m_environmentProgram->setUniformValue("env", GLint(1));
- m_environmentProgram->setUniformValue("noise", GLint(2));
- m_box->draw();
- m_environmentProgram->release();
- m_environment->unbind();
- }
-
- loadMatrix(view);
-
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
-
- for (int i = 0; i < m_programs.size(); ++i) {
- if (i == excludeBox)
- continue;
-
- glPushMatrix();
- QMatrix4x4 m;
- m.rotate(m_trackBalls[1].rotation());
- multMatrix(m);
-
- glRotatef(360.0f * i / m_programs.size(), 0.0f, 0.0f, 1.0f);
- glTranslatef(2.0f, 0.0f, 0.0f);
- glScalef(0.3f, 0.6f, 0.6f);
-
- if (glActiveTexture) {
- if (m_dynamicCubemap && m_cubemaps[i])
- m_cubemaps[i]->bind();
- else
- m_environment->bind();
- }
- m_programs[i]->bind();
- m_programs[i]->setUniformValue("tex", GLint(0));
- m_programs[i]->setUniformValue("env", GLint(1));
- m_programs[i]->setUniformValue("noise", GLint(2));
- m_programs[i]->setUniformValue("view", view);
- m_programs[i]->setUniformValue("invView", invView);
- m_box->draw();
- m_programs[i]->release();
-
- if (glActiveTexture) {
- if (m_dynamicCubemap && m_cubemaps[i])
- m_cubemaps[i]->unbind();
- else
- m_environment->unbind();
- }
- glPopMatrix();
- }
-
- if (-1 != excludeBox) {
- QMatrix4x4 m;
- m.rotate(m_trackBalls[0].rotation());
- multMatrix(m);
-
- if (glActiveTexture) {
- if (m_dynamicCubemap)
- m_mainCubemap->bind();
- else
- m_environment->bind();
- }
-
- m_programs[m_currentShader]->bind();
- m_programs[m_currentShader]->setUniformValue("tex", GLint(0));
- m_programs[m_currentShader]->setUniformValue("env", GLint(1));
- m_programs[m_currentShader]->setUniformValue("noise", GLint(2));
- m_programs[m_currentShader]->setUniformValue("view", view);
- m_programs[m_currentShader]->setUniformValue("invView", invView);
- m_box->draw();
- m_programs[m_currentShader]->release();
-
- if (glActiveTexture) {
- if (m_dynamicCubemap)
- m_mainCubemap->unbind();
- else
- m_environment->unbind();
- }
- }
-
- if (glActiveTexture) {
- glActiveTexture(GL_TEXTURE2);
- m_noise->unbind();
- glActiveTexture(GL_TEXTURE0);
- }
- m_textures[m_currentTexture]->unbind();
-}
-
-void Scene::setStates()
-{
- //glClearColor(0.25f, 0.25f, 0.5f, 1.0f);
-
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
- //glEnable(GL_COLOR_MATERIAL);
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_NORMALIZE);
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
-
- setLights();
-
- float materialSpecular[] = {0.5f, 0.5f, 0.5f, 1.0f};
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, materialSpecular);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 32.0f);
-}
-
-void Scene::setLights()
-{
- glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
- //float lightColour[] = {1.0f, 1.0f, 1.0f, 1.0f};
- float lightDir[] = {0.0f, 0.0f, 1.0f, 0.0f};
- //glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColour);
- //glLightfv(GL_LIGHT0, GL_SPECULAR, lightColour);
- glLightfv(GL_LIGHT0, GL_POSITION, lightDir);
- glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, 1.0f);
- glEnable(GL_LIGHT0);
-}
-
-void Scene::defaultStates()
-{
- //glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
-
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_CULL_FACE);
- glDisable(GL_LIGHTING);
- //glDisable(GL_COLOR_MATERIAL);
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_LIGHT0);
- glDisable(GL_NORMALIZE);
-
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
-
- glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, 0.0f);
- float defaultMaterialSpecular[] = {0.0f, 0.0f, 0.0f, 1.0f};
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, defaultMaterialSpecular);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 0.0f);
-}
-
-void Scene::renderCubemaps()
-{
- // To speed things up, only update the cubemaps for the small cubes every N frames.
- const int N = (m_updateAllCubemaps ? 1 : 3);
-
- QMatrix4x4 mat;
- GLRenderTargetCube::getProjectionMatrix(mat, 0.1f, 100.0f);
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- loadMatrix(mat);
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- QVector3D center;
-
- for (int i = m_frame % N; i < m_cubemaps.size(); i += N) {
- if (0 == m_cubemaps[i])
- continue;
-
- float angle = 2.0f * PI * i / m_cubemaps.size();
-
- center = m_trackBalls[1].rotation().rotatedVector(QVector3D(cos(angle), sin(angle), 0.0f));
-
- for (int face = 0; face < 6; ++face) {
- m_cubemaps[i]->begin(face);
-
- GLRenderTargetCube::getViewMatrix(mat, face);
- QVector4D v = QVector4D(-center.x(), -center.y(), -center.z(), 1.0);
- mat.setColumn(3, mat * v);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- renderBoxes(mat, i);
-
- m_cubemaps[i]->end();
- }
- }
-
- for (int face = 0; face < 6; ++face) {
- m_mainCubemap->begin(face);
- GLRenderTargetCube::getViewMatrix(mat, face);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- renderBoxes(mat, -1);
-
- m_mainCubemap->end();
- }
-
- glPopMatrix();
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
-
- m_updateAllCubemaps = false;
-}
-
-void Scene::drawBackground(QPainter *painter, const QRectF &)
-{
- float width = float(painter->device()->width());
- float height = float(painter->device()->height());
-
- painter->beginNativePainting();
- setStates();
-
- if (m_dynamicCubemap)
- renderCubemaps();
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glMatrixMode(GL_PROJECTION);
- qgluPerspective(60.0, width / height, 0.01, 15.0);
-
- glMatrixMode(GL_MODELVIEW);
-
- QMatrix4x4 view;
- view.rotate(m_trackBalls[2].rotation());
- view(2, 3) -= 2.0f * exp(m_distExp / 1200.0f);
- renderBoxes(view);
-
- defaultStates();
- ++m_frame;
-
- painter->endNativePainting();
-}
-
-QPointF Scene::pixelPosToViewPos(const QPointF& p)
-{
- return QPointF(2.0 * float(p.x()) / width() - 1.0,
- 1.0 - 2.0 * float(p.y()) / height());
-}
-
-void Scene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
-{
- QGraphicsScene::mouseMoveEvent(event);
- if (event->isAccepted())
- return;
-
- if (event->buttons() & Qt::LeftButton) {
- m_trackBalls[0].move(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- } else {
- m_trackBalls[0].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- }
-
- if (event->buttons() & Qt::RightButton) {
- m_trackBalls[1].move(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- } else {
- m_trackBalls[1].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- }
-
- if (event->buttons() & Qt::MidButton) {
- m_trackBalls[2].move(pixelPosToViewPos(event->scenePos()), QQuaternion());
- event->accept();
- } else {
- m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion());
- }
-}
-
-void Scene::mousePressEvent(QGraphicsSceneMouseEvent *event)
-{
- QGraphicsScene::mousePressEvent(event);
- if (event->isAccepted())
- return;
-
- if (event->buttons() & Qt::LeftButton) {
- m_trackBalls[0].push(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- }
-
- if (event->buttons() & Qt::RightButton) {
- m_trackBalls[1].push(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- }
-
- if (event->buttons() & Qt::MidButton) {
- m_trackBalls[2].push(pixelPosToViewPos(event->scenePos()), QQuaternion());
- event->accept();
- }
-}
-
-void Scene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
-{
- QGraphicsScene::mouseReleaseEvent(event);
- if (event->isAccepted())
- return;
-
- if (event->button() == Qt::LeftButton) {
- m_trackBalls[0].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- }
-
- if (event->button() == Qt::RightButton) {
- m_trackBalls[1].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugate());
- event->accept();
- }
-
- if (event->button() == Qt::MidButton) {
- m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion());
- event->accept();
- }
-}
-
-void Scene::wheelEvent(QGraphicsSceneWheelEvent * event)
-{
- QGraphicsScene::wheelEvent(event);
- if (!event->isAccepted()) {
- m_distExp += event->delta();
- if (m_distExp < -8 * 120)
- m_distExp = -8 * 120;
- if (m_distExp > 10 * 120)
- m_distExp = 10 * 120;
- event->accept();
- }
-}
-
-void Scene::setShader(int index)
-{
- if (index >= 0 && index < m_fragmentShaders.size())
- m_currentShader = index;
-}
-
-void Scene::setTexture(int index)
-{
- if (index >= 0 && index < m_textures.size())
- m_currentTexture = index;
-}
-
-void Scene::toggleDynamicCubemap(int state)
-{
- if ((m_dynamicCubemap = (state == Qt::Checked)))
- m_updateAllCubemaps = true;
-}
-
-void Scene::setColorParameter(const QString &name, QRgb color)
-{
- // set the color in all programs
- foreach (QGLShaderProgram *program, m_programs) {
- program->bind();
- program->setUniformValue(program->uniformLocation(name), QColor(color));
- program->release();
- }
-}
-
-void Scene::setFloatParameter(const QString &name, float value)
-{
- // set the color in all programs
- foreach (QGLShaderProgram *program, m_programs) {
- program->bind();
- program->setUniformValue(program->uniformLocation(name), value);
- program->release();
- }
-}
-
-void Scene::newItem(ItemDialog::ItemType type)
-{
- QSize size = sceneRect().size().toSize();
- switch (type) {
- case ItemDialog::QtBoxItem:
- addItem(new QtBox(64, rand() % (size.width() - 64) + 32, rand() % (size.height() - 64) + 32));
- break;
- case ItemDialog::CircleItem:
- addItem(new CircleItem(64, rand() % (size.width() - 64) + 32, rand() % (size.height() - 64) + 32));
- break;
- case ItemDialog::SquareItem:
- addItem(new SquareItem(64, rand() % (size.width() - 64) + 32, rand() % (size.height() - 64) + 32));
- break;
- default:
- break;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 07:44:57 +0000