Fix property value initialization

src/magnum_item.cpp

@@ -115,7 +115,7 @@ void MagnumItem::mouseMoveEvent(QMouseEvent *evt) {
 
 void MagnumItem::wheelEvent(QWheelEvent *evt) {
   if (auto& camera = m_renderer->camera()) {
-    const Float delta = evt->delta();
+    const Float delta = evt->angleDelta().y();
     if (Math::abs(delta) < 1.0e-2f)
       return;
     camera->zoom(delta*.01f);

src/magnum_render.cpp

@@ -16,9 +16,7 @@ static const auto HUE_BG = 210.0_degf;
 static const auto COLOR_BG = Color4::fromHsv({HUE_BG, .3f, .9f}, 1.f);
 static const auto COLOR_GRID = Color4::fromHsv({HUE_BG, .3f, .7f}, 1.f);
 
-MagnumRenderer::MagnumRenderer() :
-  m_init(false),
-  m_count(1) {}
+MagnumRenderer::MagnumRenderer() : m_init(false) {}
 
 MagnumRenderer::~MagnumRenderer() {
   delete m_subjectObject;
@@ -76,7 +74,7 @@ void MagnumRenderer::lazyInitialize() {
       .setLightColor(Color3{1.f})
       .setLightPosition(Vector3{-100.f, 100.f, 50.f});
 
-    m_subjectDrawable = new SubjectDrawable{*m_subjectObject, m_subjectShader, m_subject, m_drawables, m_count};
+    m_subjectDrawable = new SubjectDrawable{*m_subjectObject, m_subjectShader, m_subject, m_drawables, 1, 0, 0};
   }
 
   // The Grid

src/magnum_render.h

@@ -38,11 +38,13 @@ class SubjectDrawable : public SceneGraph::Drawable3D {
 public:
   explicit SubjectDrawable(Object3D &object, Shaders::Phong &shader,
                            GL::Mesh &mesh, SceneGraph::DrawableGroup3D &drawables,
-                           int count)
+                           int count, float hue, float t)
       : SceneGraph::Drawable3D{object, &drawables},
         m_shader(shader),
         m_mesh(mesh),
-        m_count(count) {}
+        m_count(count),
+        m_hue(hue),
+        m_t(t) {}
 
   void draw(const Matrix4 &transformation, SceneGraph::Camera3D &camera);
 
@@ -92,7 +94,6 @@ private:
   void prepGLState();
 
   bool m_init;
-  int m_count;
 
   Platform::GLContext *m_ctx{nullptr};
   GL::Framebuffer m_FBO{NoCreate};

src/qml/main.qml

@@ -108,6 +108,7 @@ ApplicationWindow {
             Layout.fillHeight: true
             Layout.fillWidth: true
 
+            t: 0
             hue: hue.value
             count: count.value