move scenelight implementation into the right source file

renderlib/AppScene.cpp

@@ -150,29 +150,3 @@ Scene::getFirst4EnabledChannels(uint32_t& c0, uint32_t& c1, uint32_t& c2, uint32
   c2 = ch[2];
   c3 = ch[3];
 }
-
-void
-SceneLight::updateTransform()
-{
-  // update from transform position and rotation.
-
-  // calculate the new direction for the light to point in
-  glm::vec3 normdir = m_transform.m_rotation * glm::vec3(0, 0, 1);
-
-  // compute the phi and theta for the new direction
-  // because they will be used in future light updates
-  float phi, theta;
-  Light::cartesianToSpherical(normdir, phi, theta);
-  m_light->m_Phi = phi;
-  m_light->m_Theta = theta;
-
-  // get m_P in world space:
-  m_light->m_P = m_light->m_Distance * normdir + m_light->m_Target;
-
-  m_light->updateBasisFrame();
-
-  // this lets the GUI have a chance to update in an abstract way
-  for (auto it = m_observers.begin(); it != m_observers.end(); ++it) {
-    (*it)(*m_light);
-  }
-}

renderlib/Light.cpp

@@ -66,3 +66,29 @@ Light::cartesianToSpherical(glm::vec3 v, float& phi, float& theta)
   phi = acosf(v.y);
   theta = atan2f(v.x, v.z);
 }
+
+void
+SceneLight::updateTransform()
+{
+  // update from transform position and rotation.
+
+  // calculate the new direction for the light to point in
+  glm::vec3 normdir = m_transform.m_rotation * glm::vec3(0, 0, 1);
+
+  // compute the phi and theta for the new direction
+  // because they will be used in future light updates
+  float phi, theta;
+  Light::cartesianToSpherical(normdir, phi, theta);
+  m_light->m_Phi = phi;
+  m_light->m_Theta = theta;
+
+  // get m_P in world space:
+  m_light->m_P = m_light->m_Distance * normdir + m_light->m_Target;
+
+  m_light->updateBasisFrame();
+
+  // this lets the GUI have a chance to update in an abstract way
+  for (auto it = m_observers.begin(); it != m_observers.end(); ++it) {
+    (*it)(*m_light);
+  }
+}