WRenderParamsWidget.cpp

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#include "WRenderParamsWidget.h"
 
#include <Wt/WBorderLayout.h>
#include <Wt/WCheckBox.h>
#include <Wt/WColorPicker.h>
#include <Wt/WDoubleSpinBox.h>
#include <Wt/WPanel.h>
#include <Wt/WPushButton.h>
#include <Wt/WSlider.h>
#include <Wt/WTable.h>
#include <Wt/WText.h>
 
#include <GLRenderEngine.h>
 
using namespace dyno;
 
WRenderParamsWidget::WRenderParamsWidget(RenderParams* rparams)
{
    this->setLayoutSizeAware(true);
    this->setOverflow(Wt::Overflow::Auto);
    this->setHeight(Wt::WLength("100%"));
 
    createLightPanel();
    //createCameraPanel();
    createRenderPanel();
 
    mRenderParams = rparams;
    update();
 
    // connect signal
    mAmbientColor->colorInput().connect(this, &WRenderParamsWidget::updateRenderParams);
    mAmbientScale->valueChanged().connect(this, &WRenderParamsWidget::updateRenderParams);
    mLightColor->colorInput().connect(this, &WRenderParamsWidget::updateRenderParams);
    mLightScale->valueChanged().connect(this, &WRenderParamsWidget::updateRenderParams);
    mLightTheta->valueChanged().connect(this, &WRenderParamsWidget::updateRenderParams);
    mLightPhi->valueChanged().connect(this, &WRenderParamsWidget::updateRenderParams);
 
    //mCameraEyeX->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraEyeY->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraEyeZ->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraTargetX->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraTargetY->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraTargetZ->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraUpX->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraUpY->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraUpZ->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraFov->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraAspect->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraClipNear->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mCameraClipFar->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
 
    mSceneBounds->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    //mAxisHelper->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    mGroundPlane->changed().connect(this, &WRenderParamsWidget::updateRenderParams);
    mGroundScale->valueChanged().connect(this, &WRenderParamsWidget::updateRenderParams);
    mBackgroudColor0->colorInput().connect(this, &WRenderParamsWidget::updateRenderParams);
    mBackgroudColor1->colorInput().connect(this, &WRenderParamsWidget::updateRenderParams);
}
 
template<class T>
T* addTableRow(Wt::WTable* table, std::string label, int labelWidth = 120, int widgetWidth = 120)
{
    int row = table->rowCount();
    auto cell0 = table->elementAt(row, 0);
    auto cell1 = table->elementAt(row, 1);
 
    cell0->addNew<Wt::WText>(label);
    cell0->setContentAlignment(Wt::AlignmentFlag::Middle);
    cell0->setWidth(labelWidth);
 
    cell1->setContentAlignment(Wt::AlignmentFlag::Middle);
    cell1->setWidth(widgetWidth);
 
    T* widget = cell1->addNew<T>();
    widget->setWidth(widgetWidth);
    return widget;
}
 
void WRenderParamsWidget::createLightPanel()
{
    // ambient light
    {
        auto panel = this->addNew<Wt::WPanel>();
        panel->setCollapsible(true);
        panel->setTitle("Ambient Light");
        auto table = panel->setCentralWidget(std::make_unique<Wt::WTable>());
        table->setMargin(10);
 
        // ambient light
        mAmbientColor = addTableRow<Wt::WColorPicker>(table, "Ambient Color");
        mAmbientScale = addTableRow<Wt::WDoubleSpinBox>(table, "Ambient Scale");
        mAmbientScale->setRange(1, 100);
    }
 
    // main directional light
    {
        auto panel = this->addNew<Wt::WPanel>();
        panel->setCollapsible(true);
        panel->setTitle("Main Directional Light");
        auto table = panel->setCentralWidget(std::make_unique<Wt::WTable>());
        table->setMargin(10);
 
        mLightColor = addTableRow<Wt::WColorPicker>(table, "Light Color");
        mLightScale = addTableRow<Wt::WDoubleSpinBox>(table, "Light Scale");
        mLightScale->setRange(1, 100);
 
        mLightTheta = addTableRow<Wt::WSlider>(table, "Light Theta");
        mLightPhi = addTableRow<Wt::WSlider>(table, "Light Phi");
        mLightTheta->setRange(0, 180);
        mLightPhi->setRange(-180, 180);
    }
 
    mAmbientColor->setStyleClass("color-picker");
    mLightColor->setStyleClass("color-picker");
 
}
 
void WRenderParamsWidget::createCameraPanel()
{
    // light
    auto panel = this->addNew<Wt::WPanel>();
    panel->setCollapsible(true);
    panel->setTitle("Camera Settings");
    auto table = panel->setCentralWidget(std::make_unique<Wt::WTable>());
    table->setMargin(10);
 
    mCameraEyeX = addTableRow<Wt::WDoubleSpinBox>(table, "Eye X");
    mCameraEyeY = addTableRow<Wt::WDoubleSpinBox>(table, "Eye Y");
    mCameraEyeZ = addTableRow<Wt::WDoubleSpinBox>(table, "Eye Z");
 
    mCameraTargetX = addTableRow<Wt::WDoubleSpinBox>(table, "Target X");
    mCameraTargetY = addTableRow<Wt::WDoubleSpinBox>(table, "Target Y");
    mCameraTargetZ = addTableRow<Wt::WDoubleSpinBox>(table, "Target Z");
 
    mCameraUpX = addTableRow<Wt::WDoubleSpinBox>(table, "Up X");
    mCameraUpY = addTableRow<Wt::WDoubleSpinBox>(table, "Up Y");
    mCameraUpZ = addTableRow<Wt::WDoubleSpinBox>(table, "Up Z");
 
    mCameraFov = addTableRow<Wt::WDoubleSpinBox>(table, "FOV(Vertical)");
    mCameraAspect = addTableRow<Wt::WDoubleSpinBox>(table, "Aspect");
    mCameraClipNear = addTableRow<Wt::WDoubleSpinBox>(table, "Near Clip");
    mCameraClipFar = addTableRow<Wt::WDoubleSpinBox>(table, "Far Clip");
 
    table->elementAt(13, 0)->setColumnSpan(2);
    table->elementAt(13, 0)->setContentAlignment(Wt::AlignmentFlag::Center);
    auto updateBtn = table->elementAt(13, 0)->addNew<Wt::WPushButton>("Update from Canvas");
    updateBtn->setMargin(10, Wt::Side::Top);
    updateBtn->clicked().connect(this, &WRenderParamsWidget::update);
 
    // aspect is auto computed from framebuffer sizer
    mCameraAspect->setEnabled(false);
 
}
 
 
void WRenderParamsWidget::createRenderPanel()
{
    auto panel = this->addNew<Wt::WPanel>();
    panel->setCollapsible(true);
    panel->setTitle("Render Settings");
    auto table = panel->setCentralWidget(std::make_unique<Wt::WTable>());
    table->setMargin(10);
 
    mSceneBounds = addTableRow<Wt::WCheckBox>(table, "Scene Bound");
    //mAxisHelper = addTableRow<Wt::WCheckBox>(table, "Axis Helper");
    mGroundPlane = addTableRow<Wt::WCheckBox>(table, "Ground Plane");
    mGroundScale = addTableRow<Wt::WSlider>(table, "Ground Scale");
    mGroundScale->setRange(1, 52);
    mBackgroudColor0 = addTableRow<Wt::WColorPicker>(table, "Background");
    mBackgroudColor0->setStyleClass("color-picker");
    mBackgroudColor1 = addTableRow<Wt::WColorPicker>(table, "Background");
    mBackgroudColor1->setStyleClass("color-picker");
 
}
 
Wt::WColor Glm2WColor(glm::vec3 v)
{
    return Wt::WColor(v.x * 255, v.y * 255, v.z * 255);
}
 
glm::vec3 WColor2Glm(Wt::WColor clr)
{
    return { clr.red() / 255.f, clr.green() / 255.f, clr.blue() / 255.f };
}
 
glm::vec3 xyz2sphere(glm::vec3 v)
{
    float xz = glm::length(glm::vec2(v.x, v.z));
    float theta = atan2(xz, v.y);
    float phi = atan2(v.z, v.x);
    return glm::vec3(theta, phi, glm::length(v));
}
 
glm::vec3 sphere2xyz(glm::vec3 v)
{
    float r = v.z;
    float x = r * sinf(v.x) * cosf(v.y);
    float y = r * cosf(v.x);
    float z = r * sinf(v.x) * sinf(v.y);
    return glm::vec3(x, y, z);
}
 
void WRenderParamsWidget::update()
{
    // light
    mAmbientColor->setColor(Glm2WColor(mRenderParams->light.ambientColor));
    mAmbientScale->setValue(mRenderParams->light.ambientScale);
    mLightColor->setColor(Glm2WColor(mRenderParams->light.mainLightColor));
    mLightScale->setValue(mRenderParams->light.mainLightScale);
    //
    glm::vec3 dir = glm::normalize(mRenderParams->light.mainLightDirection);
    glm::vec3 polar = xyz2sphere(dir);
    mLightTheta->setValue(glm::degrees(polar.x));
    mLightPhi->setValue(glm::degrees(polar.y));
 
    //TODO:
    // camera
//  mCameraEyeX->setValue(mRenderParams->camera.eye.x);
//  mCameraEyeY->setValue(mRenderParams->camera.eye.y);
//  mCameraEyeZ->setValue(mRenderParams->camera.eye.z);
//  mCameraTargetX->setValue(mRenderParams->camera.target.x);
//  mCameraTargetY->setValue(mRenderParams->camera.target.y);
//  mCameraTargetZ->setValue(mRenderParams->camera.target.z);
//  mCameraUpX->setValue(mRenderParams->camera.up.x);
//  mCameraUpY->setValue(mRenderParams->camera.up.y);
//  mCameraUpZ->setValue(mRenderParams->camera.up.z);
//  mCameraFov->setValue(mRenderParams->camera.y_fov);
//  mCameraAspect->setValue(mRenderParams->camera.aspect);
//  mCameraClipNear->setValue(mRenderParams->camera.z_min);
//  mCameraClipFar->setValue(mRenderParams->camera.z_max);
 
    // render
//      mSceneBounds->setChecked(mRenderParams->showSceneBounds);
//      //mAxisHelper->setChecked(mRenderParams->showAxisHelper);
//      mGroundPlane->setChecked(mRenderParams->showGround);
//      mGroundScale->setValue(mRenderParams->planeScale);
//      mBackgroudColor0->setColor(Glm2WColor(mRenderParams->bgColor0));
//  mBackgroudColor1->setColor(Glm2WColor(mRenderParams->bgColor1));
}
 
void WRenderParamsWidget::updateRenderParams()
{
    mRenderParams->light.ambientColor = WColor2Glm(mAmbientColor->color());
    mRenderParams->light.ambientScale = mAmbientScale->value();
 
    mRenderParams->light.mainLightColor = WColor2Glm(mLightColor->color());
    mRenderParams->light.mainLightScale = mLightScale->value();
 
    glm::vec2 polar = glm::radians(glm::vec2(mLightTheta->value(), mLightPhi->value()));
    mRenderParams->light.mainLightDirection = sphere2xyz(glm::vec3(polar, 1));
 
    // mRenderParams->camera.eye.x = mCameraEyeX->value();
    //  mRenderParams->camera.eye.y = mCameraEyeY->value();
    //  mRenderParams->camera.eye.z = mCameraEyeZ->value();
    // 
    //  mRenderParams->camera.target.x = mCameraTargetX->value();
    //  mRenderParams->camera.target.y = mCameraTargetY->value();
    //  mRenderParams->camera.target.z = mCameraTargetZ->value();
    // 
    //  mRenderParams->camera.up.x = mCameraUpX->value();
    //  mRenderParams->camera.up.y = mCameraUpY->value();
    //  mRenderParams->camera.up.z = mCameraUpZ->value();
    // 
    //  mRenderParams->camera.y_fov = mCameraFov->value();
    //  //mRenderParams->camera.aspect = mCameraAspect->value();
    //  mRenderParams->camera.z_min = mCameraClipNear->value();
    //  mRenderParams->camera.z_max = mCameraClipFar->value();
    // 
    //      mRenderParams->showSceneBounds = mSceneBounds->isChecked();
    //      //mRenderParams->showAxisHelper = mAxisHelper->isChecked();
    //      mRenderParams->showGround = mGroundPlane->isChecked();
    //      mRenderParams->planeScale = mGroundScale->value();
    //      mRenderParams->bgColor0 = WColor2Glm(mBackgroudColor0->color());
    //  mRenderParams->bgColor1 = WColor2Glm(mBackgroudColor1->color());
 
    mSignal.emit();
}