expose more uniforms to postprocessing

apps/openmw/mwrender/renderingmanager.cpp

@@ -961,6 +961,7 @@ namespace MWRender
         stateUpdater->setNextWeatherId(world->getNextWeather());
         stateUpdater->setWeatherTransition(world->getWeatherTransition());
         stateUpdater->setWindSpeed(world->getWindSpeed());
+        stateUpdater->setSkyColor(mSky->getSkyColor());
         mPostProcessor->setUnderwaterFlag(isUnderwater);
     }
 
@@ -1368,6 +1369,7 @@ namespace MWRender
         if (mNightEyeFactor > 0.f)
             color += osg::Vec4f(0.7, 0.7, 0.7, 0.0) * mNightEyeFactor;
 
+        mPostProcessor->getStateUpdater()->setAmbientColor(color);
         mStateUpdater->setAmbientColor(color);
     }
 

apps/openmw/mwrender/sky.hpp

@@ -106,6 +106,8 @@ namespace MWRender
 
         SceneUtil::RTTNode* getSkyRTT() { return mSkyRTT.get(); }
 
+        osg::Vec4f getSkyColor() const { return mSkyColour; }
+
     private:
         void create();
         ///< no need to call this, automatically done on first enable()

components/fx/stateupdater.hpp

@@ -34,6 +34,10 @@ namespace fx
 
         void setFogColor(const osg::Vec4f& color) { mData.get<FogColor>() = color; }
 
+        void setAmbientColor(const osg::Vec4f& color) { mData.get<AmbientColor>() = color; }
+
+        void setSkyColor(const osg::Vec4f& color) { mData.get<SkyColor>() = color; }
+
         void setSunColor(const osg::Vec4f& color) { mData.get<SunColor>() = color; }
 
         void setSunPos(const osg::Vec4f& pos, bool night)
@@ -139,6 +143,16 @@ namespace fx
             static constexpr std::string_view sName = "eyeVec";
         };
 
+        struct AmbientColor : std140::Vec4
+        {
+            static constexpr std::string_view sName = "ambientColor";
+        };
+
+        struct SkyColor : std140::Vec4
+        {
+            static constexpr std::string_view sName = "skyColor";
+        };
+
         struct FogColor : std140::Vec4
         {
             static constexpr std::string_view sName = "fogColor";
@@ -249,10 +263,11 @@ namespace fx
             static constexpr std::string_view sName = "isInterior";
         };
 
-        using UniformData = std140::UBO<ProjectionMatrix, InvProjectionMatrix, ViewMatrix, PrevViewMatrix,
-            InvViewMatrix, EyePos, EyeVec, FogColor, SunColor, SunPos, Resolution, RcpResolution, FogNear, FogFar, Near,
-            Far, Fov, GameHour, SunVis, WaterHeight, IsWaterEnabled, SimulationTime, DeltaSimulationTime, WindSpeed,
-            WeatherTransition, WeatherID, NextWeatherID, IsUnderwater, IsInterior>;
+        using UniformData
+            = std140::UBO<ProjectionMatrix, InvProjectionMatrix, ViewMatrix, PrevViewMatrix, InvViewMatrix, EyePos,
+                EyeVec, FogColor, AmbientColor, SkyColor, SunColor, SunPos, Resolution, RcpResolution, FogNear, FogFar,
+                Near, Far, Fov, GameHour, SunVis, WaterHeight, IsWaterEnabled, SimulationTime, DeltaSimulationTime,
+                WindSpeed, WeatherTransition, WeatherID, NextWeatherID, IsUnderwater, IsInterior>;
 
         UniformData mData;
         bool mUseUBO;

docs/source/reference/postprocessing/omwfx.rst

@@ -67,6 +67,10 @@ Builtin Uniforms
 +-------------+------------------------------+--------------------------------------------------+
 | vec4        | ``omw.fogColor``             | The RGBA color of fog                            |
 +-------------+------------------------------+--------------------------------------------------+
+| vec4        | ``omw.ambientColor``         | The RGBA color of scene ambient                  |
++-------------+------------------------------+--------------------------------------------------+
+| vec4        | ``omw.skyColor``             | The RGBA color of sky                            |
++-------------+------------------------------+--------------------------------------------------+
 | vec4        | ``omw.sunColor``             | The RGBA color of sun                            |
 +-------------+------------------------------+--------------------------------------------------+
 | vec4        | ``omw.sunPos``               | The normalized sun direction                     |
@@ -210,7 +214,7 @@ GLSL equivalent. Refer to the table below to view these mappings.
 +===================+=========================================================+
 | omw_In            |  use in place of ``in`` and ``varying``                 |
 +-------------------+---------------------------------------------------------+
-| omw_Out           |  use in place of ``out`` and ```varying``               |
+| omw_Out           |  use in place of ``out`` and ``varying``                |
 +-------------------+---------------------------------------------------------+
 | omw_Position      |  use in place of ``gl_Position``                        |
 +-------------------+---------------------------------------------------------+