mahmad/3dobj-renderer
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Added basic opengl rendering

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This commit is contained in:
Muaz Ahmad 2023-05-02 14:16:05 +05:00
parent 0e80188eaa
commit 89fb2f7ef3
3 changed files with 27 additions and 7 deletions
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8
3dobj-renderer.pro
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@ -4,7 +4,10 @@
TEMPLATE = app TEMPLATE = app
TARGET = 3dobj-renderer TARGET = 3dobj-renderer
INCLUDEPATH += . INCLUDEPATH += . \
/usr/include/GL
DEPENDPATH += . \
/usr/include/GL
# You can make your code fail to compile if you use deprecated APIs. # You can make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line. # In order to do so, uncomment the following line.
@ -14,7 +17,6 @@ INCLUDEPATH += .
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
# Input # Input
SOURCES += main.cpp SOURCES += main.cpp opglwidget.cpp
FORMS += mainwindow.ui FORMS += mainwindow.ui
QT += core gui widgets QT += core gui widgets

22
opglwidget.cpp
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@ -1,8 +1,22 @@
#include "opglwidget.h" #include "opglwidget.h"
#include <QtGui/QOpenGLFunctions> #include <GL/gl.h>
#include <math.h>
//virtual void OPGLWidget::initializeGL() override {} void OPGLWidget::initializeGL() {
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}
//virtual void OPGLWidget::paintGL() override {} void OPGLWidget::paintGL() {
glClear(GL_COLOR_BUFFER_BIT);
}
//virtual void OPGLWidget::resizeGL(int w, int h) override {} void OPGLWidget::resizeGL(int w, int h) {
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float aspect = w / float(h);
float top = 0.2f * tan(M_PI / 8);
float right = 0.2f * tan(M_PI / 8) * aspect;
glFrustum(-right , right, -top, top, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
}

4
opglwidget.h
View file

@ -4,4 +4,8 @@ class OPGLWidget : public QOpenGLWidget
{ {
public: public:
OPGLWidget(QWidget *parent) : QOpenGLWidget(parent) {} OPGLWidget(QWidget *parent) : QOpenGLWidget(parent) {}
protected:
void paintGL();
void initializeGL();
void resizeGL(int w, int h);
}; };