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#include "gfx_test.h"
#include <iostream>
#include <sstream>
GfxTest::GfxTest() : GraphicsApp(1024,768, "GfxTest"), playing_(true) {
}
GfxTest::~GfxTest() {
}
void GfxTest::InitNanoGUI() {
// Setup the GUI window
nanogui::Window *window = new nanogui::Window(screen(), "Controls");
window->setPosition(Eigen::Vector2i(10, 10));
window->setSize(Eigen::Vector2i(400,200));
window->setLayout(new nanogui::GroupLayout());
pauseBtn_ = new nanogui::Button(window, "Pause");
pauseBtn_->setCallback(std::bind(&GfxTest::OnPauseBtnPressed, this));
pauseBtn_->setTooltip("Toggle playback.");
screen()->performLayout();
}
void GfxTest::OnPauseBtnPressed() {
playing_ = !playing_;
if (playing_) {
pauseBtn_->setCaption("Pause");
}
else {
pauseBtn_->setCaption("Play");
}
}
void GfxTest::UpdateSimulation(double dt) {
static const float radians_per_sec = GfxMath::ToRadians(25.0);
if (playing_) {
rot_matrix_ = rot_matrix_ * Matrix4::RotationY((float)dt * radians_per_sec);
}
}
void GfxTest::InitOpenGL() {
// Set up the camera in a good position to see the entire field
proj_matrix_ = Matrix4::Perspective(60.0f, aspect_ratio(), 0.01f, 100.0f);
view_matrix_ = Matrix4::LookAt(Point3(0,0,4), Point3(0,0,0), Vector3(0,1,0));
glClearColor(0.0, 0.0, 0.0, 1);
teapot_.LoadFromOBJ(Platform::FindMinGfxDataFile("teapot.obj"));
shader_.Init();
}
void GfxTest::DrawUsingOpenGL() {
for (int r=-2; r<3; r++) {
for (int c=-2; c<3; c++) {
Matrix4 model_matrix = Matrix4::Translation(Vector3((float)r, (float)c, 0.0f)) * rot_matrix_;
shader_.Draw(model_matrix, view_matrix_, proj_matrix_, &teapot_, DefaultShader::MaterialProperties());
}
}
}
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