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HouseWidget.cpp
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HouseWidget.cpp
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#include "HouseWidget.h"
#include "FileProcess.h"
#include <iostream>
#include <qdebug.h>
#include <vector>
#include "stb_image.h"
#include <QVBoxLayout>
#include <qstring.h>
#include <qkeyevent>
#include <qmouseevent>
#include <qvector3d.h>
#include <QtMath>
#include <qmessagebox.h>
#include <qtoolbar.h>
#include <qinputdialog.h>
#include<qlabel.h>
#include<qtimer.h>
//#include "Triangle.h"
const unsigned int SHADOW_WIDTH = 1920, SHADOW_HEIGHT = 1080;
glm::vec3 cameraFront = glm::vec3(0.0, 0.0, -1.0);//相机指向
float cameraSpeed;//相机移动速度
glm::vec3 up = glm::vec3(0.0, 1.0, 0.0);//相机正方向
float nearPlane = 10.0f;
float farPlane = 100.0f;
//z轴负向的heading和pitch值
float yaw = -90.0;
float pitch = 0.0;
//透视矩阵的fov角度
float fov = 45.0;
//屏幕宽度和高度
float screenWidth = 1920.0f;
float screenHeight = 1080.0f;
float roamSpeed = 50.0;
float frameRate = 60.0;
//std::vector<float> houseVertexs;
HouseWidget::HouseWidget(QWidget* parent)
: QOpenGLWidget(parent), lightEnabled(false), shadowEnabled(false), lightHouseShader(0), depthMapShader(0), shadowHouseShader(0), currentShader(Type::HOUSE), roamEnabeld(false), currentHouseId(0), currentMode(Mode::CUBE), pathRoam(false)
{
this->timer = NULL;
ui.setupUi(this);
this->resize(screenWidth, screenHeight);
this->showPath = false;
this->isClickSelect = false;
//创建工具栏
QToolBar* toolbar = new QToolBar(this);
//toolbar->setStyleSheet("background-color:rgb(255,255,255);");//更改背景颜色
ui.verticalLayout->addWidget(toolbar);
QLabel* toolLabel = new QLabel(QStringLiteral("工具栏："));
toolLabel->setStyleSheet("color:white;");
toolbar->addWidget(toolLabel);
lightBox = new QCheckBox(QStringLiteral("光照"));
lightBox->setStyleSheet("QCheckBox{color:rgb(0,0,139);font-weight:500;}");
toolbar->addWidget(lightBox);
QObject::connect(lightBox, SIGNAL(clicked()), this, SLOT(lightAdmin()));
toolbar->addSeparator();
shadowBox = new QCheckBox(QStringLiteral("阴影"));
shadowBox->setStyleSheet("QCheckBox{color:rgb(0,0,139);font-weight:500;}");
toolbar->addWidget(shadowBox);
shadowBox->setCheckable(false);
QObject::connect(shadowBox, SIGNAL(stateChanged(int)), this, SLOT(shadowAdmin(int)));
toolbar->addSeparator();
roamBox = new QCheckBox(QStringLiteral("三维漫游"));
roamBox->setStyleSheet("QCheckBox{color:rgb(0,0,139);font-weight:500;}");
toolbar->addWidget(roamBox);
QObject::connect(roamBox, SIGNAL(clicked()), this, SLOT(roamAdmin()));
toolbar->addSeparator();
selectBtn = new QPushButton(QStringLiteral("根据id查询"));
QObject::connect(selectBtn, SIGNAL(clicked()), this, SLOT(selectHouse()));
toolbar->addWidget(selectBtn);
clickSelectBtn = new QPushButton(QStringLiteral("点击查询"));
QObject::connect(clickSelectBtn, SIGNAL(clicked()), this, SLOT(clickSelect()));
toolbar->addWidget(clickSelectBtn);
cancelBtn = new QPushButton(QStringLiteral("取消查询"));
QObject::connect(cancelBtn, SIGNAL(clicked()), this, SLOT(cancelSelect()));
toolbar->addWidget(cancelBtn);
toolbar->addSeparator();
pathSelectBtn = new QPushButton(QStringLiteral("选择漫游路径"));
QObject::connect(pathSelectBtn, SIGNAL(clicked()), this, SLOT(selectRoamPath()));
pathRoamBtn = new QPushButton(QStringLiteral("开始路径漫游"));
QObject::connect(pathRoamBtn, SIGNAL(clicked()), this, SLOT(startRoamPath()));
pathRoamBtn->setEnabled(false);
cancelRoamBtn = new QPushButton(QStringLiteral("取消路径漫游"));
QObject::connect(cancelRoamBtn, SIGNAL(clicked()), this, SLOT(cancelPathRoam()));
cancelRoamBtn->setEnabled(false);
toolbar->addWidget(pathSelectBtn);
toolbar->addWidget(pathRoamBtn);
toolbar->addWidget(cancelRoamBtn);
toolbar->addSeparator();
cubeModelBox = new QCheckBox(QStringLiteral("体模式"));
QObject::connect(cubeModelBox, SIGNAL(clicked()), this, SLOT(cubuModelAdmin()));
cubeModelBox->setChecked(true);
cubeModelBox->setStyleSheet("QCheckBox{color:rgb(0,0,139);font-weight:500;}");
toolbar->addWidget(cubeModelBox);
lineModelBox = new QCheckBox(QStringLiteral("线框模式"));
QObject::connect(lineModelBox, SIGNAL(clicked()), this, SLOT(lineModelAdmin()));
lineModelBox->setStyleSheet("QCheckBox{color:rgb(0,0,139);font-weight:500;}");
toolbar->addWidget(lineModelBox);
//toolbar->addWidget(checkBox2);
//QObject::connect(ui.checkBox, SIGNAL(clicked()), this, SLOT(lightAdmin()));
//ui.checkBox_2->setDisabled(true);
//QObject::connect(ui.checkBox_2, SIGNAL(clicked()), this, SLOT(shadowAdmin()));
//QObject::connect(ui.checkBox_3, SIGNAL(clicked()), this, SLOT(roamAdmin()));
}
HouseWidget::~HouseWidget()
{}
void HouseWidget::vertexBuffer(Type type)
{
if (type == Type::HOUSE) {
glGenBuffers(1, &this->m_vbo);
glBindBuffer(GL_ARRAY_BUFFER, this->m_vbo);
glBufferData(GL_ARRAY_BUFFER, this->houseVertexs.size() * sizeof(GLfloat), &this->houseVertexs[0], GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
int offset = 0;
offset += 3 * sizeof(GLfloat);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (const void*)offset);
glEnableVertexAttribArray(1);
offset += 2 * sizeof(GLfloat);
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (const void*)offset);
glEnableVertexAttribArray(2);
}
else if (type == Type::LIGHT) {
glGenBuffers(1, &this->light_vbo);
glBindBuffer(GL_ARRAY_BUFFER, this->light_vbo);
glBufferData(GL_ARRAY_BUFFER, this->lightVertexs.size() * sizeof(GLfloat), &this->lightVertexs[0], GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
}
else if (type == Type::LINE_HOUSE) {
glGenBuffers(1, &this->line_house_vbo);
glBindBuffer(GL_ARRAY_BUFFER, this->line_house_vbo);
glBufferData(GL_ARRAY_BUFFER, this->lineHouseVertexs.size() * sizeof(GLfloat), &this->lineHouseVertexs[0], GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
}
else if (type == Type::SKY_BOX) {
glGenBuffers(1, &this->skybox_vbo);
glBindBuffer(GL_ARRAY_BUFFER, this->skybox_vbo);
glBufferData(GL_ARRAY_BUFFER, this->skyboxVertexs.size() * sizeof(GLfloat), &this->skyboxVertexs[0], GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
}
}
void HouseWidget::vertexArray(Type type)
{
if (type == Type::HOUSE) {
glGenVertexArrays(1, &this->m_vao);
glBindVertexArray(this->m_vao);
}
else if (type == Type::LIGHT) {
glGenVertexArrays(1, &this->light_vao);
glBindVertexArray(this->light_vao);
}
else if (type == Type::LINE_HOUSE) {
glGenVertexArrays(1, &this->line_house_vao);
glBindVertexArray(this->line_house_vao);
}
else if (type == Type::SKY_BOX) {
glGenVertexArrays(1, &this->skybox_vao);
glBindVertexArray(this->skybox_vao);
}
}
void HouseWidget::bindVertexArray(Type type)
{
if (type == Type::HOUSE) {
glBindVertexArray(this->m_vao);
}
else if (type == Type::LIGHT) {
glBindVertexArray(this->light_vao);
}
else if (type == Type::LINE_HOUSE) {
glBindVertexArray(this->line_house_vao);
}
else if (type == Type::SKY_BOX) {
glBindVertexArray(this->skybox_vao);
}
}
void HouseWidget::indexBuffer(Type type)
{
if (type == Type::HOUSE) {
glGenBuffers(1, &this->m_ibo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->m_ibo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->houseIndexs.size() * sizeof(GLuint), &this->houseIndexs[0], GL_STATIC_DRAW);
}
else if (type == Type::LIGHT) {
glGenBuffers(1, &this->light_ibo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->light_ibo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->lightIndexs.size() * sizeof(GLuint), &this->lightIndexs[0], GL_STATIC_DRAW);
}
else if (type == Type::LINE_HOUSE) {
glGenBuffers(1, &this->line_house_ibo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->line_house_ibo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->lineHouseIndexs.size() * sizeof(GLuint), &this->lineHouseIndexs[0], GL_STATIC_DRAW);
}
}
void HouseWidget::createShader(const std::string& vertexShaderPath, const std::string& fragmentShaderPath, Type type)
{
//获取着色器内容
FileProcess fp;
std::string vertexSource = fp.getContent(vertexShaderPath);
std::string fragmentSource = fp.getContent(fragmentShaderPath);
//顶点着色器
GLuint vertexShader;
vertexShader = glCreateShader(GL_VERTEX_SHADER);
const char* vertexSrc = vertexSource.c_str();
glShaderSource(vertexShader, 1, &vertexSrc, NULL);
// 编译顶点着色器
glCompileShader(vertexShader);
int success;
char infoLog[512];
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
// 上面的返回值为success，如果不成功，进入下面的分支
if (!success)
{
// 获得错误信息，并将错误信息放在infoLog中进行存储
glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
// 打印错误信息
std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n" << infoLog << std::endl;
return;
}
//片元着色器
GLuint fragmentShader;
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
const char* fragmentSrc = fragmentSource.c_str();
glShaderSource(fragmentShader, 1, &fragmentSrc, NULL);
// 编译片元着色器
glCompileShader(fragmentShader);
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
// 上面的返回值为success，如果不成功，进入下面的分支
if (!success)
{
// 获得错误信息，并将错误信息放在infoLog中进行存储
glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
// 打印错误信息
std::cout << "ERROR::SHADER::FRAGMENT::COMPILATION_FAILED\n" << infoLog << std::endl;
return;
}
// 创建着色器程序
if (type == Type::HOUSE) {
this->shader = glCreateProgram();
// 把着色器附着到程序上
glAttachShader(this->shader, vertexShader);
glAttachShader(this->shader, fragmentShader);
glLinkProgram(this->shader);
glValidateProgram(this->shader);
glUseProgram(this->shader);
}
else if (type == Type::LIGHT) {
this->lightShader = glCreateProgram();
// 把着色器附着到程序上
glAttachShader(this->lightShader, vertexShader);
glAttachShader(this->lightShader, fragmentShader);
glLinkProgram(this->lightShader);
glValidateProgram(this->lightShader);
glUseProgram(this->lightShader);
}
else if (type == Type::LIGHT_HOUSE) {
this->lightHouseShader = glCreateProgram();
// 把着色器附着到程序上
glAttachShader(this->lightHouseShader, vertexShader);
glAttachShader(this->lightHouseShader, fragmentShader);
glLinkProgram(this->lightHouseShader);
glValidateProgram(this->lightHouseShader);
glUseProgram(this->lightHouseShader);
}
else if (type == Type::DEPTH_MAP) {
this->depthMapShader = glCreateProgram();
// 把着色器附着到程序上
glAttachShader(this->depthMapShader, vertexShader);
glAttachShader(this->depthMapShader, fragmentShader);
glLinkProgram(this->depthMapShader);
glValidateProgram(this->depthMapShader);
glUseProgram(this->depthMapShader);
}
else if (type == Type::SHADOW_HOUSE) {
this->shadowHouseShader = glCreateProgram();
glAttachShader(this->shadowHouseShader, vertexShader);
glAttachShader(this->shadowHouseShader, fragmentShader);
glLinkProgram(this->shadowHouseShader);
glValidateProgram(this->shadowHouseShader);
glUseProgram(this->shadowHouseShader);
}
else if (type == Type::SELECT_HOUSE) {
this->selectHouseShader = glCreateProgram();
glAttachShader(this->selectHouseShader, vertexShader);
glAttachShader(this->selectHouseShader, fragmentShader);
glLinkProgram(this->selectHouseShader);
glValidateProgram(this->selectHouseShader);
glUseProgram(this->selectHouseShader);
}
else if (type == Type::LINE_HOUSE) {
this->lineHouseShader = glCreateProgram();
glAttachShader(this->lineHouseShader, vertexShader);
glAttachShader(this->lineHouseShader, fragmentShader);
glLinkProgram(this->lineHouseShader);
glValidateProgram(this->lineHouseShader);
glUseProgram(this->lineHouseShader);
}
else if (type == Type::PATH_LINE) {
this->pathLineShader = glCreateProgram();
glAttachShader(this->pathLineShader, vertexShader);
glAttachShader(this->pathLineShader, fragmentShader);
glLinkProgram(this->pathLineShader);
glValidateProgram(this->pathLineShader);
glUseProgram(this->pathLineShader);
}
else if (type == Type::SKY_BOX) {
this->skyboxShader = glCreateProgram();
glAttachShader(this->skyboxShader, vertexShader);
glAttachShader(this->skyboxShader, fragmentShader);
glLinkProgram(this->skyboxShader);
glValidateProgram(this->skyboxShader);
glUseProgram(this->skyboxShader);
}
// 当在把着色器对象链接到程序对象以后，删除着色器对象
glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);
}
void HouseWidget::bindShader(Type type)
{
if (type == Type::HOUSE) {
glUseProgram(this->shader);
}
else if (type == Type::LIGHT) {
glUseProgram(this->lightShader);
}
else if (type == Type::LIGHT_HOUSE) {
glUseProgram(this->lightHouseShader);
}
else if (type == Type::DEPTH_MAP) {
glUseProgram(this->depthMapShader);
}
else if (type == Type::SHADOW_HOUSE) {
glUseProgram(this->shadowHouseShader);
}
else if (type == Type::SELECT_HOUSE) {
glUseProgram(this->selectHouseShader);
}
else if (type == Type::LINE_HOUSE) {
glUseProgram(this->lineHouseShader);
}
else if (type == Type::PATH_LINE) {
glUseProgram(this->pathLineShader);
}
else if (type == Type::SKY_BOX) {
glUseProgram(this->skyboxShader);
}
}
void HouseWidget::unBindShader()
{
glUseProgram(0);
}
void HouseWidget::createTexture(const std::string& path)
{
stbi_set_flip_vertically_on_load(1);
int width, height, m_BPP;
unsigned char* m_LocalBuffer;
m_LocalBuffer = stbi_load(path.c_str(), &width, &height, &m_BPP, 4);
glGenTextures(1, &this->texture_id);
glBindTexture(GL_TEXTURE_2D, this->texture_id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_LocalBuffer);
if (m_LocalBuffer)
stbi_image_free(m_LocalBuffer);
}
void HouseWidget::activateTexture(int n)
{
glActiveTexture(GL_TEXTURE0 + n);
}
void HouseWidget::uniformMatrix4(const std::string& name, glm::mat4 martix4, Type type)
{
if (type == Type::HOUSE) {
GLuint location = glGetUniformLocation(this->shader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::LIGHT) {
GLuint location = glGetUniformLocation(this->lightShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::LIGHT_HOUSE) {
GLuint location = glGetUniformLocation(this->lightHouseShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::DEPTH_MAP) {
GLuint location = glGetUniformLocation(this->depthMapShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::SHADOW_HOUSE) {
GLuint location = glGetUniformLocation(this->shadowHouseShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::SELECT_HOUSE) {
GLuint location = glGetUniformLocation(this->selectHouseShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::LINE_HOUSE) {
GLuint location = glGetUniformLocation(this->lineHouseShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::PATH_LINE) {
GLuint location = glGetUniformLocation(this->pathLineShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
else if (type == Type::SKY_BOX) {
GLuint location = glGetUniformLocation(this->skyboxShader, name.c_str());
glUniformMatrix4fv(location, 1, GL_FALSE, &martix4[0][0]);
}
}
void HouseWidget::uniform1i(const std::string& name, int i, Type type)
{
if (type == Type::HOUSE) {
GLuint location = glGetUniformLocation(this->shader, name.c_str());
glUniform1i(location, i);
}
else if (type == Type::LIGHT_HOUSE) {
GLuint location = glGetUniformLocation(this->lightHouseShader, name.c_str());
glUniform1i(location, i);
}
else if (type == Type::SHADOW_HOUSE)
{
GLuint location = glGetUniformLocation(this->shadowHouseShader, name.c_str());
glUniform1i(location, i);
}
else if (type == Type::SKY_BOX) {
GLuint location = glGetUniformLocation(this->skyboxShader, name.c_str());
glUniform1i(location, i);
}
}
void HouseWidget::uniform4f(const std::string& name, glm::vec4 vec, Type type)
{
if (type == Type::LIGHT_HOUSE) {
GLuint location = glGetUniformLocation(this->lightHouseShader, name.c_str());
glUniform4f(location, vec.x, vec.y, vec.z, vec.w);
}
else if (type == Type::SHADOW_HOUSE) {
GLuint location = glGetUniformLocation(this->shadowHouseShader, name.c_str());
glUniform4f(location, vec.x, vec.y, vec.z, vec.w);
}
}
void HouseWidget::uniform3f(const std::string& name, glm::vec3 vec, Type type)
{
if (type == Type::LIGHT_HOUSE) {
GLuint location = glGetUniformLocation(this->lightHouseShader, name.c_str());
glUniform3f(location, vec.x, vec.y, vec.z);
}
else if (type == Type::SHADOW_HOUSE) {
GLuint location = glGetUniformLocation(this->shadowHouseShader, name.c_str());
glUniform3f(location, vec.x, vec.y, vec.z);
}
}
void HouseWidget::computeLightVertexs(glm::vec3 lightPosition, float lightXSpan, float lightYSpan, float lightZSpan)
{
//依次添加8个顶点
this->lightVertexs.push_back(lightPosition.x - lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y + lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z + lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x + lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y + lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z + lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x - lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y - lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z + lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x + lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y - lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z + lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x - lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y + lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z - lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x + lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y + lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z - lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x - lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y - lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z - lightZSpan / 2);
this->lightVertexs.push_back(lightPosition.x + lightXSpan / 2);
this->lightVertexs.push_back(lightPosition.y - lightYSpan / 2);
this->lightVertexs.push_back(lightPosition.z - lightZSpan / 2);
}
void HouseWidget::getLightIndexs()
{
this->lightIndexs = {
0,1,2,
1,2,3,
1,3,7,
1,7,5,
5,7,6,
5,6,4,
0,4,6,
0,6,2,
0,1,4,
4,1,5,
2,6,3,
6,3,7
};
}
void HouseWidget::initDepthFrameBuffer()
{
//makeCurrent();
glGenFramebuffers(1, &this->depthMap_fbo);
//qDebug() << depthMap_fbo << endl;
}
void HouseWidget::initDepthMap()
{
//makeCurrent();
glGenTextures(1, &this->depthMap);
glBindTexture(GL_TEXTURE_2D, depthMap);
//qDebug() << this->depthMap << endl;
//qDebug() << this->texture_id << endl;
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, SHADOW_WIDTH, SHADOW_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
void HouseWidget::connectDFDM()
{
//makeCurrent();
glBindFramebuffer(GL_FRAMEBUFFER, this->depthMap_fbo);
// attach depth texture as FBO's depth buffer
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthMap, 0);
glDrawBuffer(GL_NONE);
glReadBuffer(GL_NONE);
// 检查帧缓冲对象是否完整
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
qDebug() << "error" << endl;
}
glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebufferObject());
}
void HouseWidget::unBindFrameBuffer()
{
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
void HouseWidget::computeSkyBoxVertexs(float xSpan, float ySpan, float zSpan)
{
this->skyboxVertexs = std::vector<float>{
-xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,-zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
-xSpan / 2,-ySpan / 2,-zSpan / 2,
-xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,ySpan / 2,zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
xSpan / 2,-ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,-zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
-xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,-ySpan / 2,zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
-xSpan / 2,ySpan / 2,-zSpan / 2,
xSpan / 2,ySpan / 2,-zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
xSpan / 2,ySpan / 2,zSpan / 2,
-xSpan / 2,ySpan / 2,zSpan / 2,
-xSpan / 2,ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
xSpan / 2,-ySpan / 2,-zSpan / 2,
-xSpan / 2,-ySpan / 2,zSpan / 2,
xSpan / 2,-ySpan / 2,zSpan / 2,
};
}
void HouseWidget::initializeGL() {
this->initializeOpenGLFunctions(); //为当前上下文初始化提供OpenGL函数解析
int num;
glEnable(GL_DEPTH_TEST); //开启深度测试
glDepthFunc(GL_LESS);
glEnable(GL_BLEND);//开启融合
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//读取House数据
FileProcess fp;
bool result = fp.getHouseData("./res/data/house.txt", this->houseVertexs, this->houseIndexs, this->houseTopAndBottomVertexs, this->houseTopAndBottomIndexs, this->houses, this->lineHouseVertexs, this->lineHouseIndexs);
if (!result) {
QMessageBox::critical(this, "Error", "Read File Error!");
exit(0);
}
//获取boundary
//house数据的Z轴是opengl坐标系的Y轴，Y轴是opengl坐标系的Z轴
float xmin = fp.getXmin();
float xmax = fp.getXmax();
float ymin = fp.getZmin();
float ymax = fp.getZmax();
float zmin = fp.getYmin();
float zmax = fp.getYmax();
float xSpan = xmax - xmin;
float ySpan = ymax - ymin;
float zSpan = zmax - zmin;
float center[3] = { (xmin + xmax) / 2,(ymin + ymax) / 2 ,(zmin + zmax) / 2 };
cameraSpeed = zSpan / 100;
//创建并绑定house着色器
this->createShader("./res/shader/vertex.shader", "./res/shader/fragment.shader", Type::HOUSE);
//获得MVP矩阵
//view矩阵
float dist = zSpan * 0.6;
//his->cameraPos = glm::vec3(xSpan/2, ySpan/3, zSpan/2 + dist);
this->cameraPos = glm::vec3(0.0, ySpan / 4, dist);
//
//glm::vec3 viewCenter = glm::vec3(0.0,0.0,-1.0);
glm::vec3 viewCenter = cameraPos + cameraFront;
//glm::vec3 up = glm::vec3(0.0, 1.0, 0.0);
this->view = glm::lookAt(cameraPos, viewCenter, up);
//project矩阵
//glm::mat4 project = glm::ortho(xmin - xSpan/2, xmax + xSpan / 2, ymin - ySpan/4, ymax + ySpan / 2, -zmax, -zmin);
//this->project = glm::ortho(-xSpan / 2 - xSpan / 2, xSpan / 2 + xSpan / 2, -ySpan / 2 - ySpan / 2, ySpan / 2 + ySpan / 2, -zSpan - zSpan, zSpan + zSpan);
farPlane = dist + zSpan;
project = glm::perspective(glm::radians(fov), screenWidth / screenHeight, nearPlane, farPlane);
//model矩阵：将House平移到中心为(0,0,0.0,0.0)
this->model = glm::translate(glm::mat4(1.0), glm::vec3(-center[0], -center[1], -center[2]));
//glm::mat4 model = glm::mat4(1.0f);
//mvp矩阵
glm::mat4 mvp = project * view * model;
//this->uniformMatrix4("u_MVP", mvp, Type::HOUSE);
this->uniformMatrix4("u_model", this->model, Type::HOUSE);
this->uniformMatrix4("u_view", this->view, Type::HOUSE);
this->uniformMatrix4("u_project", this->project, Type::HOUSE);
//纹理
//this->activateTexture(0);
this->createTexture("./res/texture/house.jpg");
this->activateTexture(0);
glBindTexture(GL_TEXTURE_2D, this->texture_id);
this->uniform1i("u_Texture", 0, Type::HOUSE);
//顶点数组对象
this->vertexArray(Type::HOUSE);
//顶点缓冲区
this->vertexBuffer(Type::HOUSE);
//索引缓冲区
this->indexBuffer(Type::HOUSE);
//按照同样的步骤init光源
//计算光源位置与索引数据
glm::vec3 lightPosition(xSpan, ySpan, 0); //光源位置
float lightXSpan = xSpan / 10;
float lightYSpan = ySpan / 10;
float lightZSpan = zSpan / 10;
this->computeLightVertexs(lightPosition, lightXSpan, lightYSpan, lightZSpan);
this->getLightIndexs();
//绑定光源着色器
this->unBindShader();
this->createShader("./res/shader/light_vertex.shader", "./res/shader/light_fragment.shader", Type::LIGHT);
glm::mat4 lightModel = glm::mat4(1.0);
this->uniformMatrix4("u_model", lightModel, Type::LIGHT);
this->uniformMatrix4("u_MVP", project * view * lightModel, Type::LIGHT);
//顶点数组对象、顶点缓冲区、索引缓冲区
this->vertexArray(Type::LIGHT);
this->vertexBuffer(Type::LIGHT);
this->indexBuffer(Type::LIGHT);
//创建光照house着色器
this->createShader("./res/shader/lighthouse_vertex.shader", "./res/shader/lighthouse_fragment.shader", Type::LIGHT_HOUSE);
//着色器变量赋值
//this->uniformMatrix4("u_MVP", mvp, Type::LIGHT_HOUSE);
this->uniformMatrix4("u_model", model, Type::LIGHT_HOUSE);
this->uniformMatrix4("u_view", view, Type::LIGHT_HOUSE);
this->uniformMatrix4("u_project", project, Type::LIGHT_HOUSE);
this->uniform1i("u_Texture", 0, Type::LIGHT_HOUSE);
this->uniform4f("u_light_color", glm::vec4(1.0, 1.0, 1.0, 1.0), Type::LIGHT_HOUSE);
this->uniform3f("u_light_position", lightPosition, Type::LIGHT_HOUSE);
//this->uniform3f("u_camera_position", glm::vec3(0.0,0.0,zmax + zSpan/10), Type::LIGHT_HOUSE);
this->uniform3f("u_camera_position", cameraPos, Type::LIGHT_HOUSE);
/*创建帧缓冲对象和深度纹理*/
this->initDepthFrameBuffer();
this->initDepthMap();
this->connectDFDM();
//this->unBindFrameBuffer();
/*创建深度贴图着色器*/
this->createShader("./res/shader/shadow_mapping_depth_vertex.shader", "./res/shader/shadow_mapping_depth_fragment.shader", Type::DEPTH_MAP);
/*为深度贴图着色器中的lightSpace矩阵赋值*/
glm::mat4 lightProjection, lightView;
glm::mat4 lightSpaceMatrix;
float near_plane = 0;
float far_plane = xSpan * 2;
lightProjection = glm::ortho(-zSpan, zSpan, -lightPosition.y - ySpan, ySpan, near_plane, far_plane);
lightView = glm::lookAt(lightPosition, glm::vec3(0.0, 0.0, 0.0), glm::vec3(0.0, 1.0, 0.0));
lightSpaceMatrix = lightProjection * lightView;
this->uniformMatrix4("lightSpaceMatrix", lightSpaceMatrix, Type::DEPTH_MAP);
this->uniformMatrix4("u_model", model, Type::DEPTH_MAP);
//测试
//this->bindShader(Type::HOUSE);
//this->uniformMatrix4("u_view", lightView, Type::HOUSE);
//this->uniformMatrix4("u_project", lightProjection, Type::HOUSE);
this->unBindShader();
/*创建添加阴影后的着色器*/
this->createShader("./res/shader/shadow_house_vertex.shader", "./res/shader/shadow_house_fragment.shader", Type::SHADOW_HOUSE);
/*着色器变量赋值*/
this->uniform1i("diffuseTexture", 0, Type::SHADOW_HOUSE);
this->uniform1i("shadowMap", 1, Type::SHADOW_HOUSE);
this->uniformMatrix4("u_project", this->project, Type::SHADOW_HOUSE);
this->uniformMatrix4("u_view", this->view, Type::SHADOW_HOUSE);
this->uniformMatrix4("u_model", this->model, Type::SHADOW_HOUSE);
this->uniformMatrix4("lightSpaceMatrix", lightSpaceMatrix, Type::SHADOW_HOUSE);
this->uniform3f("u_light_color", glm::vec3(1.0, 1.0, 1.0), Type::SHADOW_HOUSE);
this->uniform3f("lightPos", lightPosition, Type::SHADOW_HOUSE);
this->uniform3f("viewPos", cameraPos, Type::SHADOW_HOUSE);
//select_house Shader
this->createShader("./res/shader/select_house_vertex.shader", "./res/shader/select_house_fragment.shader", Type::SELECT_HOUSE);
/*线模式House*/
//vao
this->vertexArray(Type::LINE_HOUSE);
//vbo
this->vertexBuffer(Type::LINE_HOUSE);
//ibo
this->indexBuffer(Type::LINE_HOUSE);
//Shader
this->createShader("./res/shader/line_house_vertex.shader", "./res/shader/line_house_fragment.shader", Type::LINE_HOUSE);
//着色器变量赋值
this->uniformMatrix4("u_model", model, Type::LINE_HOUSE);
this->uniformMatrix4("u_view", view, Type::LINE_HOUSE);
this->uniformMatrix4("u_project", project, Type::LINE_HOUSE);
//路径线着色器
this->createShader("./res/shader/path_point_vertex.shader", "./res/shader/path_point_fragment.shader", Type::PATH_LINE);
//this->uniformMatrix4("u_model", model, Type::PATH_LINE);
//this->uniformMatrix4("u_view", view, Type::PATH_LINE);
//this->uniformMatrix4("u_project", project, Type::PATH_LINE);
/*加载天空盒*/
//初始化纹理对象
std::vector<const GLchar*> faces;
faces.push_back("./res/texture/right.jpg");
faces.push_back("./res/texture/left.jpg");
faces.push_back("./res/texture/top.jpg");
faces.push_back("./res/texture/bottom.jpg");
faces.push_back("./res/texture/back.jpg");
faces.push_back("./res/texture/front.jpg");
this->loadCubemap(faces);
//计算顶点数据
this->computeSkyBoxVertexs(xSpan, ySpan, zSpan);
//创建着色器
this->unBindShader();
this->createShader("./res/shader/skybox_vertex.shader","./res/shader/skybox_fragment.shader",Type::SKY_BOX);
//着色器变量赋值
//this->uniformMatrix4("u_view",view,Type::SKY_BOX);
//this->uniformMatrix4("u_project", project, Type::SKY_BOX);
this->vertexArray(Type::SKY_BOX);
this->vertexBuffer(Type::SKY_BOX);
}
void HouseWidget::resizeGL(int w, int h) {
glViewport(0, 0, w, h); //调整视口
}
void HouseWidget::paintGL() {
glClearColor(0.1f, 0.1f, 0.1f, 1.0f); //清屏
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //清除颜色缓冲和深度缓冲
//当前模式为体模式
if (this->currentMode == Mode::CUBE) {
//如果开启阴影，先获得阴影贴图
if (this->shadowEnabled) {
glViewport(0, 0, SHADOW_WIDTH, SHADOW_HEIGHT);
glBindFramebuffer(GL_FRAMEBUFFER, this->depthMap_fbo);
glClear(GL_DEPTH_BUFFER_BIT);
this->bindShader(Type::DEPTH_MAP);
this->bindVertexArray(Type::HOUSE);
glDrawElements(GL_TRIANGLES, this->houseIndexs.size(), GL_UNSIGNED_INT, nullptr);
glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebufferObject());
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
//绘制天空盒
glDepthMask(GL_FALSE);
this->bindShader(Type::SKY_BOX);
glm::mat4 skyView = glm::mat4(glm::mat3(view));
this->uniformMatrix4("u_view", skyView, Type::SKY_BOX);
this->uniformMatrix4("u_project", project, Type::SKY_BOX);
// skybox cube
this->bindVertexArray(Type::SKY_BOX);
this->activateTexture(2);
this->uniform1i("skybox", 2, Type::SKY_BOX);
glBindTexture(GL_TEXTURE_CUBE_MAP, this->skybox_texture_id);
glDrawArrays(GL_TRIANGLES, 0, 36);
glDepthMask(GL_TRUE);
//glClearColor(0.0f, 0.0f, 0.0f, 1.0f); //清屏
glViewport(0, 0, screenWidth, screenHeight);
//开启光源
//if (this->lightEnabled) {
// this->bindVertexArray(Type::LIGHT);
// this->bindShader(Type::LIGHT);
// glDrawElements(GL_TRIANGLES, this->lightIndexs.size(), GL_UNSIGNED_INT, nullptr); //绘制光源
//}
this->unBindShader();
this->bindVertexArray(Type::HOUSE);
this->bindShader(this->currentShader);
this->uniformMatrix4("u_view", view, this->currentShader);
//this->bindShader(this->currentShader);
this->uniformMatrix4("u_project", project, this->currentShader);
if (this->currentShader == Type::LIGHT_HOUSE) {
//更新相机位置
this->uniform3f("u_camera_position", cameraPos, Type::LIGHT_HOUSE);
}
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, this->texture_id);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, depthMap);
glDrawElements(GL_TRIANGLES, this->houseIndexs.size(), GL_UNSIGNED_INT, nullptr);
}
//当前模式为线模式
if (this->currentMode == Mode::LINE) {
//绘制天空盒
glDepthMask(GL_FALSE);
this->bindShader(Type::SKY_BOX);
glm::mat4 skyView = glm::mat4(glm::mat3(view));
this->uniformMatrix4("u_view", skyView, Type::SKY_BOX);
this->uniformMatrix4("u_project", project, Type::SKY_BOX);
// skybox cube
this->bindVertexArray(Type::SKY_BOX);
this->activateTexture(2);
this->uniform1i("skybox", 2, Type::SKY_BOX);
glBindTexture(GL_TEXTURE_CUBE_MAP, this->skybox_texture_id);
glDrawArrays(GL_TRIANGLES, 0, 36);
glDepthMask(GL_TRUE);
this->unBindShader();
this->bindVertexArray(Type::LINE_HOUSE);
this->bindShader(Type::LINE_HOUSE);
this->uniformMatrix4("u_view", view, Type::LINE_HOUSE);
glDrawElements(GL_LINES, this->lineHouseIndexs.size(), GL_UNSIGNED_INT, nullptr);
}
//如果信息查询，需要高亮显示查询的House
if (this->currentHouseId) {
this->unBindShader();
this->bindShader(Type::SELECT_HOUSE);
this->uniformMatrix4("u_model", model, Type::SELECT_HOUSE);
this->uniformMatrix4("u_view", view, Type::SELECT_HOUSE);
this->uniformMatrix4("u_project", project, Type::SELECT_HOUSE);
unsigned int select_house_vao;
glGenVertexArrays(1, &select_house_vao);
glBindVertexArray(select_house_vao);
unsigned int select_house_vbo;
glGenBuffers(1, &select_house_vbo);
glBindBuffer(GL_ARRAY_BUFFER, select_house_vbo);
glBufferData(GL_ARRAY_BUFFER, this->houses[this->currentHouseId - 1].vertexs.size() * sizeof(GLfloat), &this->houses[this->currentHouseId - 1].vertexs[0], GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
unsigned int select_house_ibo;
glGenBuffers(1, &select_house_ibo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, select_house_ibo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->houses[this->currentHouseId - 1].indexs.size() * sizeof(GLuint), &this->houses[this->currentHouseId - 1].indexs[0], GL_STATIC_DRAW);
glLineWidth(0.1f);
glDrawElements(GL_TRIANGLES, this->houses[this->currentHouseId - 1].indexs.size(), GL_UNSIGNED_INT, nullptr);
}
//绘制漫游路径
if (this->showPath && this->pathPoints.size() > 1) {
std::vector<float> points;
for (int i = 0; i < this->pathPoints.size(); i++) {
points.push_back(this->pathPoints[i].x);
points.push_back(this->pathPoints[i].y);
points.push_back(this->pathPoints[i].z);
}
//绘制线
std::vector<unsigned int> pathLineIndexs;
for (int i = 0; i < this->pathPoints.size() - 1; i++) {
pathLineIndexs.push_back(i);
pathLineIndexs.push_back(i + 1);
}
this->unBindShader();
this->bindShader(Type::PATH_LINE);
//this->uniformMatrix4("u_model", model, Type::PATH_LINE);
this->uniformMatrix4("u_view", view, Type::PATH_LINE);
this->uniformMatrix4("u_project", project, Type::PATH_LINE);
unsigned int path_line_vao;
glGenVertexArrays(1, &path_line_vao);
glBindVertexArray(path_line_vao);