Fix property value initialization

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};