add settings for viewing distance and fog

apps/openmw/mwrender/objects.cpp

@@ -94,7 +94,7 @@ void Objects::insertMesh (const MWWorld::Ptr& ptr, const std::string& mesh)
     extents *= insert->getScale();
     float size = std::max(std::max(extents.x, extents.y), extents.z);
 
-    bool small = (size < Settings::Manager::getInt("small object size", "Objects")) && Settings::Manager::getBool("limit small object distance", "Objects");
+    bool small = (size < Settings::Manager::getInt("small object size", "View distance")) && Settings::Manager::getBool("limit small object distance", "Objects");
 
     // do not fade out doors. that will cause holes and look stupid
     if (ptr.getTypeName().find("Door") != std::string::npos)
@@ -116,7 +116,7 @@ void Objects::insertMesh (const MWWorld::Ptr& ptr, const std::string& mesh)
     {
         insert->attachObject(ent);
 
-        ent->setRenderingDistance(small ? Settings::Manager::getInt("small object distance", "Objects") : 0); /// \todo config value
+        ent->setRenderingDistance(small ? Settings::Manager::getInt("small object distance", "View distance") : 0); /// \todo config value
     }
     else
     {
@@ -130,7 +130,7 @@ void Objects::insertMesh (const MWWorld::Ptr& ptr, const std::string& mesh)
                 sg = mRenderer.getScene()->createStaticGeometry( "sg" + Ogre::StringConverter::toString(uniqueID));
                 mStaticGeometrySmall[ptr.getCell()] = sg;
 
-                sg->setRenderingDistance(Settings::Manager::getInt("small object distance", "Objects")); /// \todo config value
+                sg->setRenderingDistance(Settings::Manager::getInt("small object distance", "View distance")); /// \todo config value
             }
             else
                 sg = mStaticGeometrySmall[ptr.getCell()];

apps/openmw/mwrender/renderingmanager.cpp

@@ -12,6 +12,7 @@
 #include "../mwworld/world.hpp" // these includes can be removed once the static-hack is gone
 #include "../mwworld/ptr.hpp"
 #include <components/esm/loadstat.hpp>
+#include <components/settings/settings.hpp>
 
 
 using namespace MWRender;
@@ -273,18 +274,14 @@ void RenderingManager::configureFog(ESMS::CellStore<MWWorld::RefData> &mCell)
 
 void RenderingManager::configureFog(const float density, const Ogre::ColourValue& colour)
 {
-  /// \todo make the viewing distance and fog start/end configurable
+  float max = Settings::Manager::getFloat("max viewing distance", "Viewing distance");
 
-  // right now we load 3x3 cells, so the maximum viewing distance we
-  // can allow (to prevent objects suddenly popping up) equals:
-  // 8192            * 0.69
-  //   ^ cell size    ^ minimum density value used (clear weather)
-  float low = 5652.48 / density / 2.f;
-  float high = 5652.48 / density;
+  float low = max / (density) * Settings::Manager::getFloat("fog start factor", "Viewing distance");
+  float high = max / (density) * Settings::Manager::getFloat("fog end factor", "Viewing distance");
 
   mRendering.getScene()->setFog (FOG_LINEAR, colour, 0, low, high);
 
-  mRendering.getCamera()->setFarClipDistance ( high );
+  mRendering.getCamera()->setFarClipDistance ( max / density );
   mRendering.getViewport()->setBackgroundColour (colour);
 }
 

files/settings-default.cfg

@@ -9,6 +9,8 @@ num lights = 8
 # Use static geometry for static objects. Improves rendering speed.
 use static geometry = true
 
+[Viewing distance]
+
 # Limit the rendering distance of small objects
 limit small object distance = false
 
@@ -18,6 +20,15 @@ small object size = 250
 # Rendering distance for small objects
 small object distance = 3500
 
+# Max viewing distance at clear weather conditions
+max viewing distance = 5600
+
+# Distance at which fog starts (proportional to viewing distance)
+fog start factor = 0.5
+
+# Distance at which fog ends (proportional to viewing distance)
+fog end factor = 1.0
+
 [Terrain]
 
 # Max. number of lights that affect the terrain. Setting to 1 will only reflect sunlight