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Work on separating widget from main application

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+ Thanks @OgreTransporter for help in #4!
+ Closes #4
This commit is contained in:
Shaun Reed
2022-08-07 13:12:12 -04:00
parent 432bf9919c
commit 249a2b4446
31 changed files with 913 additions and 718 deletions
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app/mainwindow.cpp Normal file
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#include <mainwindow.h>
#include <ui_mainwindow.h>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
mScene = new ExampleScene();
ui->openGLWidget->setScene(mScene);
setWindowIcon(QIcon("../resources/icon.png"));
}
MainWindow::~MainWindow()
{
delete ui;
}

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#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <qtk-widget_export.h>
#include <scene.h>
namespace Ui {
class MainWindow;
}
class QTK_WIDGET_EXPORT MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = nullptr);
~MainWindow();
private:
Ui::MainWindow *ui;
Qtk::Scene * mScene;
};
#endif // MAINWINDOW_H

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app/mainwindow.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>600</height>
</rect>
</property>
<property name="windowTitle">
<string>Qtk - MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="Qtk::MainWidget" name="openGLWidget">
<property name="geometry">
<rect>
<x>10</x>
<y>10</y>
<width>775</width>
<height>550</height>
</rect>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>22</height>
</rect>
</property>
<widget class="QMenu" name="menuTest">
<property name="title">
<string>File</string>
</property>
<addaction name="actionOpen"/>
<addaction name="actionSave_2"/>
<addaction name="actionSave_as"/>
<addaction name="actionExit"/>
</widget>
<widget class="QMenu" name="menuView">
<property name="title">
<string>View</string>
</property>
<addaction name="actionShow_Console"/>
</widget>
<addaction name="menuTest"/>
<addaction name="menuView"/>
</widget>
<widget class="QStatusBar" name="statusbar"/>
<action name="actionOtherTest">
<property name="text">
<string>Save</string>
</property>
</action>
<action name="actionSave">
<property name="text">
<string>Save</string>
</property>
</action>
<action name="actionOpen">
<property name="text">
<string>Open...</string>
</property>
</action>
<action name="actionSave_2">
<property name="text">
<string>Save</string>
</property>
</action>
<action name="actionSave_as">
<property name="text">
<string>Save as...</string>
</property>
</action>
<action name="actionExit">
<property name="text">
<string>Exit</string>
</property>
</action>
<action name="actionShow_Console">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>Show Console</string>
</property>
</action>
</widget>
<customwidgets>
<customwidget>
<class>MainWidget</class>
<extends>QOpenGLWidget</extends>
<header>mainwidget.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

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/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Manage files and resources used by qtk ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <resourcemanager.h>

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app/resourcemanager.h Normal file
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/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Manage files and resources used by qtk ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <string>
#include <resources.h>
#ifndef QTK_RESOURCEMANAGER_H
#define QTK_RESOURCEMANAGER_H
typedef class ResourceManager {
public:
/**
* Takes a path using qrc format and constructs full system path to qtk assets
* Qrc format prefix ':/' is trimmed from the path for the caller
* Assets used with RM may (or may not) appear in qtk/resources.qrc
*
* @param path Path relative to qtk/resources/; ie) ':/models/backpack/backpack.obj'
* An asset at location qtk/resources/path/to/asset.obj
* Should be given in qrc format: ':/path/to/asset.obj'
* @return Absoulte system path to a qtk asset
*/
static std::string getPath(const std::string & path) {
// Only construct qtk resource path if in qrc format; else return it as-is
return path[0] == ':' ? QTK_RESOURCES_DIR + path.substr(1) : path;
}
} RM;
#endif //QTK_RESOURCEMANAGER_H

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/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Classes for managing objects and data within a scene ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <abstractscene.h>
#include <camera3d.h>
#include <meshrenderer.h>
#include <model.h>
#include <resourcemanager.h>
#include <scene.h>
#include <texture.h>
using namespace Qtk;
/*******************************************************************************
* Constructors, Destructors
******************************************************************************/
ExampleScene::ExampleScene()
{
Camera().transform().setTranslation(0.0f, 0.0f, 20.0f);
Camera().transform().setRotation(-5.0f, 0.0f, 1.0f, 0.0f);
}
ExampleScene::~ExampleScene()
{
delete mTestPhong;
delete mTestSpecular;
delete mTestDiffuse;
delete mTestAmbient;
for (auto & mesh : mMeshes) delete mesh;
for (auto & model : mModels) delete model;
delete mSkybox;
}
/*******************************************************************************
* Public Member Functions
******************************************************************************/
void ExampleScene::init()
{
Qtk::Skybox * sb = new Qtk::Skybox("Skybox");
setSkybox(sb);
// Initialize Phong example cube
mTestPhong = new Qtk::MeshRenderer("phong", Qtk::Cube());
mTestPhong->mTransform.setTranslation(3.0f, 0.0f, -2.0f);
mTestPhong->setShaders(":/solid-phong.vert", ":/solid-phong.frag");
mTestPhong->init();
mTestPhong->mProgram.bind();
mTestPhong->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mTestPhong->setUniform("uLightColor", QVector3D(1.0f, 1.0f, 1.0f));
mTestPhong->setUniform("uAmbientStrength", 0.2f);
mTestPhong->setUniform("uSpecularStrength", 0.50f);
mTestPhong->setUniform("uSpecularShine", 256);
mTestPhong->mVAO.bind();
mTestPhong->mNBO.create();
mTestPhong->mNBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mTestPhong->mNBO.bind();
mTestPhong->mNBO.allocate(mTestPhong->normals().data(),
mTestPhong->normals().size()
* sizeof(mTestPhong->normals()[0]));
mTestPhong->mProgram.enableAttributeArray(1);
mTestPhong->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mTestPhong->mNBO.release();
mTestPhong->mVAO.release();
mTestPhong->mProgram.release();
// Initialize Ambient example cube
mTestAmbient = new Qtk::MeshRenderer("ambient", Cube());
mTestAmbient->mTransform.setTranslation(7.0f, 0.0f, -2.0f);
mTestAmbient->setShaders(":/solid-ambient.vert", ":/solid-ambient.frag");
mTestAmbient->init();
mTestAmbient->mProgram.bind();
mTestAmbient->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mTestAmbient->setUniform("uLightColor", QVector3D(1.0f, 1.0f, 1.0f));
mTestAmbient->setUniform("uAmbientStrength", 0.2f);
mTestAmbient->mVAO.bind();
mTestAmbient->mNBO.create();
mTestAmbient->mNBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mTestAmbient->mNBO.bind();
mTestAmbient->mNBO.allocate(mTestAmbient->normals().data(),
mTestAmbient->normals().size()
* sizeof(mTestAmbient->normals()[0]));
mTestAmbient->mProgram.enableAttributeArray(1);
mTestAmbient->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mTestAmbient->mNBO.release();
mTestAmbient->mVAO.release();
mTestAmbient->mProgram.release();
// Initialize Diffuse example cube
mTestDiffuse = new Qtk::MeshRenderer("diffuse", Cube());
mTestDiffuse->mTransform.setTranslation(9.0f, 0.0f, -2.0f);
mTestDiffuse->setShaders(":/solid-diffuse.vert", ":/solid-diffuse.frag");
mTestDiffuse->init();
mTestDiffuse->mProgram.bind();
mTestDiffuse->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mTestDiffuse->setUniform("uLightColor", QVector3D(1.0f, 1.0f, 1.0f));
mTestDiffuse->setUniform("uAmbientStrength", 0.2f);
mTestDiffuse->mVAO.bind();
mTestDiffuse->mNBO.create();
mTestDiffuse->mNBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mTestDiffuse->mNBO.bind();
mTestDiffuse->mNBO.allocate(mTestDiffuse->normals().data(),
mTestDiffuse->normals().size()
* sizeof(mTestDiffuse->normals()[0]));
mTestDiffuse->mProgram.enableAttributeArray(1);
mTestDiffuse->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mTestDiffuse->mNBO.release();
mTestDiffuse->mVAO.release();
mTestDiffuse->mProgram.release();
// Initialize Specular example cube
mTestSpecular = new Qtk::MeshRenderer("specular", Cube());
mTestSpecular->mTransform.setTranslation(11.0f, 0.0f, -2.0f);
mTestSpecular->setShaders(":/solid-specular.vert", ":/solid-specular.frag");
mTestSpecular->init();
mTestSpecular->mProgram.bind();
mTestSpecular->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mTestSpecular->setUniform("uLightColor", QVector3D(1.0f, 1.0f, 1.0f));
mTestSpecular->setUniform("uAmbientStrength", 0.2f);
mTestSpecular->setUniform("uSpecularStrength", 0.50f);
mTestSpecular->setUniform("uSpecularShine", 256);
mTestSpecular->mVAO.bind();
mTestSpecular->mNBO.create();
mTestSpecular->mNBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mTestSpecular->mNBO.bind();
mTestSpecular->mNBO.allocate(mTestSpecular->normals().data(),
mTestSpecular->normals().size()
* sizeof(mTestSpecular->normals()[0]));
mTestSpecular->mProgram.enableAttributeArray(1);
mTestSpecular->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mTestSpecular->mNBO.release();
mTestSpecular->mVAO.release();
mTestSpecular->mProgram.release();
//
// Model loading
mModels.push_back(new Qtk::Model("backpack", ":/models/backpack/backpack.obj"));
// Sometimes model textures need flipped in certain directions
mModels.back()->flipTexture("diffuse.jpg", false, true);
mModels.back()->mTransform.setTranslation(0.0f, 0.0f, -10.0f);
mModels.push_back(new Qtk::Model("bird", ":/models/bird/bird.obj"));
mModels.back()->mTransform.setTranslation(2.0f, 2.0f, -10.0f);
// Sometimes the models are very large
mModels.back()->mTransform.scale(0.0025f);
mModels.back()->mTransform.rotate(-110.0f, 0.0f, 1.0f, 0.0f);
mModels.push_back(new Qtk::Model("lion", ":/models/lion/lion.obj"));
mModels.back()->mTransform.setTranslation(-3.0f, -1.0f, -10.0f);
mModels.back()->mTransform.scale(0.15f);
mModels.push_back(new Qtk::Model("alien", ":/models/alien-hominid/alien.obj"));
mModels.back()->mTransform.setTranslation(2.0f, -1.0f, -5.0f);
mModels.back()->mTransform.scale(0.15f);
mModels.push_back(new Qtk::Model("scythe", ":/models/scythe/scythe.obj"));
mModels.back()->mTransform.setTranslation(-6.0f, 0.0f, -10.0f);
mModels.back()->mTransform.rotate(-90.0f, 1.0f, 0.0f, 0.0f);
mModels.back()->mTransform.rotate(90.0f, 0.0f, 1.0f, 0.0f);
mModels.push_back(new Qtk::Model("masterChief", ":/models/spartan/spartan.obj"));
mModels.back()->mTransform.setTranslation(-1.5f, 0.5f, -2.0f);
//
// Building example mesh objects
// Render an alien with specular
// Test alien Model with phong lighting and specular mapping
mMeshes.push_back(
new Qtk::MeshRenderer("alienTestLight", Triangle(Qtk::QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(4.0f, 1.5f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
// This function changes values we have allocated in a buffer, so init() after
mMeshes.back()->setColor(GREEN);
mMeshes.back()->init();
mModels.push_back(
new Qtk::Model("alienTest", ":/models/alien-hominid/alien.obj",
":/model-specular.vert", ":/model-specular.frag")
);
mModels.back()->mTransform.setTranslation(3.0f, -1.0f, 10.0f);
mModels.back()->mTransform.scale(0.15f);
mModels.back()->setUniform("uMaterial.ambient", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.diffuse", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.specular", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.ambientStrength", 0.8f);
mModels.back()->setUniform("uMaterial.diffuseStrength", 0.8f);
mModels.back()->setUniform("uMaterial.specularStrength", 1.0f);
mModels.back()->setUniform("uMaterial.shine", 32.0f);
mModels.back()->setUniform("uLight.ambient", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uLight.diffuse", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uLight.specular", QVector3D(1.0f, 1.0f, 1.0f));
// Test spartan Model with phong lighting, specular and normal mapping
mMeshes.push_back(
new Qtk::MeshRenderer("spartanTestLight", Triangle(QTK_DRAW_ELEMENTS))
);
mMeshes.back()->mTransform.setTranslation(1.0f, 1.5f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
// This function changes values we have allocated in a buffer, so init() after
mMeshes.back()->setColor(GREEN);
mMeshes.back()->init();
mModels.push_back(
new Qtk::Model("spartanTest", ":/models/spartan/spartan.obj",
":/model-normals.vert", ":/model-normals.frag")
);
mModels.back()->mTransform.setTranslation(0.0f, -1.0f, 10.0f);
mModels.back()->mTransform.scale(2.0f);
mModels.back()->setUniform("uMaterial.ambient", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.diffuse", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.specular", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uMaterial.ambientStrength", 1.0f);
mModels.back()->setUniform("uMaterial.diffuseStrength", 1.0f);
mModels.back()->setUniform("uMaterial.specularStrength", 1.0f);
mModels.back()->setUniform("uMaterial.shine", 128.0f);
mModels.back()->setUniform("uLight.ambient", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uLight.diffuse", QVector3D(1.0f, 1.0f, 1.0f));
mModels.back()->setUniform("uLight.specular", QVector3D(1.0f, 1.0f, 1.0f));
// Test basic cube with phong.vert and phong.frag shaders
mMeshes.push_back(
new Qtk::MeshRenderer("testLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 1.25f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
// This function changes values we have allocated in a buffer, so init() after
mMeshes.back()->setColor(GREEN);
mMeshes.back()->init();
mMeshes.push_back(
new Qtk::MeshRenderer("testPhong", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 10.0f);
mMeshes.back()->setShaders(":/phong.vert", ":/phong.frag");
mMeshes.back()->setColor(QVector3D(0.0f, 0.25f, 0.0f));
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->setUniform("uMaterial.ambient", QVector3D(0.0f, 0.3f, 0.0f));
mMeshes.back()->setUniform("uMaterial.diffuse", QVector3D(0.0f, 0.2f, 0.0f));
mMeshes.back()->setUniform("uMaterial.specular", QVector3D(1.0f, 1.0f, 1.0f));
mMeshes.back()->setUniform("uMaterial.ambientStrength", 1.0f);
mMeshes.back()->setUniform("uMaterial.diffuseStrength", 1.0f);
mMeshes.back()->setUniform("uMaterial.specularStrength", 1.0f);
mMeshes.back()->setUniform("uMaterial.shine", 64.0f);
mMeshes.back()->setUniform("uLight.ambient", QVector3D(0.25f, 0.2f, 0.075f));
mMeshes.back()->setUniform("uLight.diffuse", QVector3D(0.75f, 0.6f, 0.22f));
mMeshes.back()->setUniform("uLight.specular", QVector3D(0.62f, 0.55f, 0.37f));
mMeshes.back()->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mMeshes.back()->mProgram.release();
//
// Create simple shapes using MeshRenderer class and data in mesh.h
mMeshes.push_back(
new Qtk::MeshRenderer("rightTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-5.0f, 0.0f, -2.0f);
mMeshes.push_back(
new Qtk::MeshRenderer("centerCube", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, 0.0f, -2.0f);
mMeshes.push_back(
new Qtk::MeshRenderer("leftTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-9.0f, 0.0f, -2.0f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
mMeshes.push_back(
new Qtk::MeshRenderer("topTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("bottomTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, -2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
// This function changes values we have allocated in a buffer, so init() after
mMeshes.back()->setColor(GREEN);
mMeshes.back()->init();
//
// Testing for normals, texture coordinates
// RGB Normals cube to show normals are correct with QTK_DRAW_ARRAYS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 4.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mProgram.release();
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
// RGB Normals cube to show normals are correct with QTK_DRAW_ELEMENTS_NORMALS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mProgram.release();
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
// Texturing a cube using texture coordinates and glDrawArrays
// + Texturing with UVs using glDrawElements requires QTK_DRAW_ELEMENTS_NORMALS
// + UVs required duplicating element position data from QTK_DRAW_ELEMENTS
// + This is because the same position must use different UV coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("uvCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->setTexture(Texture::initTexture2D(":/crate.png"));
mMeshes.back()->setUniform("uTexture", 0);
mMeshes.back()->texture().bind();
mMeshes.back()->texture().release();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.destroy();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->mShape.texCoords().data(),
mMeshes.back()->mShape.texCoords().size()
* sizeof(mMeshes.back()->mShape.texCoords()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
2, sizeof(QVector2D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
// Test drawing a cube with texture coordinates using glDrawElements
mMeshes.push_back(
new Qtk::MeshRenderer("uvCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(-1.7f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->texCoords().data(),
mMeshes.back()->texCoords().size()
* sizeof(mMeshes.back()->texCoords()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->setTexture(Texture::initTexture2D(":/crate.png"));
mMeshes.back()->mProgram.setUniformValue("uTexture", 0);
mMeshes.back()->mProgram.release();
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mTransform.rotate(45.0f, 0.0f, 1.0f, 0.0f);
// Texturing a cube using a cube map
// + Cube map texturing works with both QTK_DRAW_ARRAYS and QTK_DRAW_ELEMENTS
mMeshes.push_back(
new Qtk::MeshRenderer("testCubeMap", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 1.0f, -2.0f);
mMeshes.back()->mTransform.setRotation(45.0f, 0.0f, 1.0f, 0.0f);
mMeshes.back()->setShaders(":/texture-cubemap.vert", ":/texture-cubemap.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->setTexture(Texture::initCubeMap(":/crate.png"));
mMeshes.back()->setUniform("uTexture", 0);
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.destroy();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->mShape.texCoords().data(),
mMeshes.back()->mShape.texCoords().size()
* sizeof(mMeshes.back()->mShape.texCoords()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
2, sizeof(QVector2D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
// Create a cube with custom shaders
// + Apply RGB normals shader and spin the cube for a neat effect
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCube", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 2.0f, -2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mProgram.release();
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
// RGB Normals triangle to show normals are correct with QTK_DRAW_ARRAYS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbTriangleArraysTest", Triangle(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(7.0f, 0.0f, 2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
// RGB Normals triangle to show normals are correct with QTK_DRAW_ELEMENTS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbTriangleElementsTest",
Triangle(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(7.0f, 0.0f, 4.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->normals().data(),
mMeshes.back()->normals().size()
* sizeof(mMeshes.back()->normals()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
3, sizeof(QVector3D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
// Test drawing triangle with glDrawArrays with texture coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("testTriangleArraysUV", Triangle(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 2.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->setTexture(Texture::initTexture2D(":/crate.png"));
mMeshes.back()->setUniform("uTexture", 0);
mMeshes.back()->texture().bind();
mMeshes.back()->texture().release();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.destroy();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->mShape.texCoords().data(),
mMeshes.back()->mShape.texCoords().size()
* sizeof(mMeshes.back()->mShape.texCoords()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
2, sizeof(QVector2D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
// Test drawing triangle with glDrawElements with texture coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("testTriangleElementsUV",
Triangle(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(-2.5f, 0.0f, -1.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->setTexture(Texture::initTexture2D(":/crate.png"));
mMeshes.back()->setUniform("uTexture", 0);
mMeshes.back()->texture().bind();
mMeshes.back()->texture().release();
mMeshes.back()->mVAO.bind();
mMeshes.back()->mNBO.destroy();
mMeshes.back()->mNBO.create();
mMeshes.back()->mNBO.bind();
mMeshes.back()->mNBO.allocate(mMeshes.back()->mShape.texCoords().data(),
mMeshes.back()->mShape.texCoords().size()
* sizeof(mMeshes.back()->mShape.texCoords()[0]));
mMeshes.back()->mProgram.enableAttributeArray(1);
mMeshes.back()->mProgram.setAttributeBuffer(1, GL_FLOAT, 0,
2, sizeof(QVector2D));
mMeshes.back()->mNBO.release();
mMeshes.back()->mVAO.release();
mMeshes.back()->mProgram.release();
//
// Lighting cube examples
// Example of a cube with no lighting applied
mMeshes.push_back(
new Qtk::MeshRenderer("noLight", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/solid-perspective.vert",
":/solid-perspective.frag");
mMeshes.back()->init();
mMeshes.back()->mProgram.bind();
mMeshes.back()->setUniform("uColor", QVector3D(0.0f, 0.25f, 0.0f));
mMeshes.back()->mProgram.release();
// Create objects that represent light sources for lighting examples
mMeshes.push_back(
new Qtk::MeshRenderer("phongLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(3.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("diffuseLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(9.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("specularLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(11.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
}
void ExampleScene::draw()
{
mSkybox->draw();
for (auto & model : mModels) model->draw();
for (const auto &mesh : mMeshes) mesh->draw();
mTestPhong->mProgram.bind();
mTestPhong->setUniform("uModelInverseTransposed",
mTestPhong->mTransform.toMatrix().normalMatrix());
mTestPhong->setUniform(
"uLightPosition",
MeshRenderer::getInstance("phongLight")->mTransform.translation());
mTestPhong->setUniform("uCameraPosition",
ExampleScene::Camera().transform().translation());
mTestPhong->mProgram.release();
mTestPhong->draw();
mTestAmbient->mProgram.bind();
mTestAmbient->setUniform("uCameraPosition",
ExampleScene::Camera().transform().translation());
mTestAmbient->mProgram.release();
mTestAmbient->draw();
mTestDiffuse->mProgram.bind();
mTestDiffuse->setUniform("uModelInverseTransposed",
mTestDiffuse->mTransform.toMatrix().normalMatrix());
mTestDiffuse->setUniform(
"uLightPosition",
MeshRenderer::getInstance("diffuseLight")->mTransform.translation());
mTestDiffuse->setUniform("uCameraPosition", ExampleScene::Camera().transform().translation());
mTestDiffuse->mProgram.release();
mTestDiffuse->draw();
mTestSpecular->mProgram.bind();
mTestSpecular->setUniform(
"uModelInverseTransposed",
mTestSpecular->mTransform.toMatrix().normalMatrix());
mTestSpecular->setUniform(
"uLightPosition",
MeshRenderer::getInstance("specularLight")->mTransform.translation());
mTestSpecular->setUniform("uCameraPosition", ExampleScene::Camera().transform().translation());
mTestSpecular->mProgram.release();
mTestSpecular->draw();
}
void ExampleScene::update()
{
auto position = MeshRenderer::getInstance("alienTestLight")->mTransform.translation();
Model::getInstance("alienTest")->setUniform(
"uLight.position", position);
Model::getInstance("alienTest")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
auto posMatrix = Model::getInstance("alienTest")->mTransform.toMatrix();
Model::getInstance("alienTest")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
Model::getInstance("alienTest")->setUniform(
"uMVP.model", posMatrix);
Model::getInstance("alienTest")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
Model::getInstance("alienTest")->setUniform(
"uMVP.projection", ExampleScene::Projection());
Model::getInstance("alienTest")->mTransform.rotate(0.75f, 0.0f, 1.0f, 0.0f);
position = MeshRenderer::getInstance("spartanTestLight")->mTransform.translation();
Model::getInstance("spartanTest")->setUniform(
"uLight.position", position);
Model::getInstance("spartanTest")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
posMatrix = Model::getInstance("spartanTest")->mTransform.toMatrix();
Model::getInstance("spartanTest")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
Model::getInstance("spartanTest")->setUniform(
"uMVP.model", posMatrix);
Model::getInstance("spartanTest")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
Model::getInstance("spartanTest")->setUniform(
"uMVP.projection", ExampleScene::Projection());
Model::getInstance("spartanTest")->mTransform.rotate(0.75f, 0.0f, 1.0f, 0.0f);
MeshRenderer::getInstance("testPhong")->mTransform.rotate(
0.75f, 1.0f, 0.5f, 0.0f);
MeshRenderer::getInstance("testPhong")->mProgram.bind();
position = MeshRenderer::getInstance("testLight")->mTransform.translation();
MeshRenderer::getInstance("testPhong")->setUniform(
"uLight.position", position);
MeshRenderer::getInstance("testPhong")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
posMatrix = MeshRenderer::getInstance("testPhong")->mTransform.toMatrix();
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.model", posMatrix);
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.projection", ExampleScene::Projection());
MeshRenderer::getInstance("testPhong")->mProgram.release();
// Rotate lighting example cubes
mTestPhong->mTransform.rotate(0.75f, 0.5f, 0.3f, 0.2f);
MeshRenderer::getInstance("noLight")->mTransform.rotate(
0.75f, 0.5f, 0.3f, 0.2f);
mTestAmbient->mTransform.rotate(0.75f, 0.5f, 0.3f, 0.2f);
mTestDiffuse->mTransform.rotate(0.75f, 0.5f, 0.3f, 0.2f);
mTestSpecular->mTransform.rotate(0.75f, 0.5f, 0.3f, 0.2f);
// Examples of various translations and rotations
// Rotate in multiple directions simultaneously
MeshRenderer::getInstance("rgbNormalsCube")->mTransform.rotate(
0.75f, 0.2f, 0.4f, 0.6f);
// Pitch forward and roll sideways
MeshRenderer::getInstance("leftTriangle")->mTransform.rotate(
0.75f, 1.0f, 0.0f, 0.0f);
MeshRenderer::getInstance("rightTriangle")->mTransform.rotate(
0.75f, 0.0f, 0.0f, 1.0f);
// Move between two positions over time
static float translateX = 0.025f;
float limit = -9.0f; // Origin position.x - 2.0f
float posX =
MeshRenderer::getInstance("topTriangle")->mTransform.translation().x();
if (posX < limit || posX > limit + 4.0f) {
translateX = -translateX;
}
MeshRenderer::getInstance("topTriangle")->mTransform.translate(
translateX, 0.0f, 0.0f);
MeshRenderer::getInstance("bottomTriangle")->mTransform.translate(
-translateX, 0.0f, 0.0f);
// And lets rotate the triangles in two directions at once
MeshRenderer::getInstance("topTriangle")->mTransform.rotate(
0.75f, 0.2f, 0.0f, 0.4f);
MeshRenderer::getInstance("bottomTriangle")->mTransform.rotate(
0.75f, 0.0f, 0.2f, 0.4f);
// And make the bottom triangle green, instead of RGB
// Rotate center cube in several directions simultaneously
// + Not subject to gimbal lock since we are using quaternions :)
MeshRenderer::getInstance("centerCube")->mTransform.rotate(
0.75f, 0.2f, 0.4f, 0.6f);
}

36
app/scene.h Normal file
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/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Classes for managing objects and data within a scene ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_EXAMPLE_SCENE_H
#define QTK_EXAMPLE_SCENE_H
#include <abstractscene.h>
#include <camera3d.h>
#include <skybox.h>
#include <QMatrix4x4>
class ExampleScene : public Qtk::Scene {
public:
ExampleScene();
~ExampleScene();
virtual void init();
virtual void draw();
virtual void update();
private:
Qtk::MeshRenderer * mTestPhong;
Qtk::MeshRenderer * mTestSpecular;
Qtk::MeshRenderer * mTestDiffuse;
Qtk::MeshRenderer * mTestAmbient;
};
#endif // QTK_EXAMPLE_SCENE_H