Merge remote branch 'scrawl/water'

CMakeLists.txt

@@ -200,6 +200,7 @@ if(APPLE)
                           "Plugin_ParticleFX")
 endif(APPLE)
 
+add_subdirectory( files/)
 add_subdirectory( files/mygui )
 
 # Specify build paths

apps/openmw/CMakeLists.txt

@@ -15,7 +15,7 @@ source_group(game FILES ${GAME} ${GAME_HEADER})
 
 add_openmw_dir (mwrender
     renderingmanager debugging sky player animation npcanimation creatureanimation actors objects
-    renderinginterface localmap
+    renderinginterface localmap water
     )
 
 add_openmw_dir (mwinput

apps/openmw/engine.cpp

@@ -315,7 +315,11 @@ void OMW::Engine::go()
 
     // This has to be added BEFORE MyGUI is initialized, as it needs
     // to find core.xml here.
+
+    //addResourcesDirectory(mResDir);
+   
     addResourcesDirectory(mResDir / "mygui");
+    addResourcesDirectory(mResDir / "water");
 
     // Create the window
     mOgre->createWindow("OpenMW");

apps/openmw/mwrender/renderingmanager.cpp

@@ -53,6 +53,10 @@ RenderingManager::RenderingManager (OEngine::Render::OgreRenderer& _rend, const
     //mSkyManager = 0;
     mSkyManager = new SkyManager(mMwRoot, mRendering.getCamera(), &environment);
 
+
+    mWater = 0;
+
+
     mPlayer = new MWRender::Player (mRendering.getCamera(), playerNode);
     mSun = 0;
 
@@ -88,11 +92,26 @@ OEngine::Render::Fader* RenderingManager::getFader()
     return mRendering.getFader();
 }
 
-void RenderingManager::removeCell (MWWorld::Ptr::CellStore *store){
+void RenderingManager::removeCell (MWWorld::Ptr::CellStore *store)
+{
     mObjects.removeCell(store);
     mActors.removeCell(store);
 }
 
+void RenderingManager::removeWater ()
+{
+    if(mWater){
+        delete mWater;
+        mWater = 0;
+    }
+}
+
+void RenderingManager::toggleWater()
+{
+    if (mWater)
+        mWater->toggle();
+}
+
 void RenderingManager::cellAdded (MWWorld::Ptr::CellStore *store)
 {
     mObjects.buildStaticGeometry (*store);
@@ -142,6 +161,27 @@ void RenderingManager::update (float duration){
     mRendering.update(duration);
 
     mLocalMap->updatePlayer( mRendering.getCamera()->getRealPosition(), mRendering.getCamera()->getRealDirection() );
+
+    checkUnderwater();
+}
+void RenderingManager::waterAdded (MWWorld::Ptr::CellStore *store){
+    if(store->cell->data.flags & store->cell->HasWater){
+        if(mWater == 0)
+            mWater = new MWRender::Water(mRendering.getCamera(), store->cell);
+        else
+            mWater->changeCell(store->cell);
+        //else
+
+    }
+    else
+        removeWater();
+   
+}
+
+void RenderingManager::setWaterHeight(const float height)
+{
+    if (mWater)
+        mWater->setHeight(height);
 }
 
 void RenderingManager::skyEnable ()
@@ -286,6 +326,11 @@ void RenderingManager::toggleLight()
 
   setAmbientMode();
 }
+void RenderingManager::checkUnderwater(){
+    if(mWater){
+         mWater->checkUnderwater( mRendering.getCamera()->getRealPosition().y );
+    }
+}
 
 void RenderingManager::playAnimationGroup (const MWWorld::Ptr& ptr, const std::string& groupName,
      int mode, int number)

apps/openmw/mwrender/renderingmanager.hpp

@@ -24,6 +24,7 @@
 #include "objects.hpp"
 #include "actors.hpp"
 #include "player.hpp"
+#include "water.hpp"
 #include "localmap.hpp"
 
 namespace Ogre
@@ -59,6 +60,8 @@ class RenderingManager: private RenderingInterface {
     RenderingManager(OEngine::Render::OgreRenderer& _rend, const boost::filesystem::path& resDir, OEngine::Physic::PhysicEngine* engine, MWWorld::Environment& environment);
     virtual ~RenderingManager();
 
+
+
     virtual MWRender::Player& getPlayer(); /// \todo move this to private again as soon as
                                             /// MWWorld::Player has been rewritten to not need access
                                             /// to internal details of the rendering system anymore
@@ -75,7 +78,10 @@ class RenderingManager: private RenderingInterface {
     /// \todo this function should be removed later. Instead the rendering subsystems should track
     /// when rebatching is needed and update automatically at the end of each frame.
     void cellAdded (MWWorld::Ptr::CellStore *store);
+    void waterAdded(MWWorld::Ptr::CellStore *store);
 
+    void removeWater();
+    
     void preCellChange (MWWorld::Ptr::CellStore* store);
     ///< this event is fired immediately before changing cell
 
@@ -86,6 +92,10 @@ class RenderingManager: private RenderingInterface {
     void scaleObject (const MWWorld::Ptr& ptr, const Ogre::Vector3& scale);
     void rotateObject (const MWWorld::Ptr& ptr, const::Ogre::Quaternion& orientation);
 
+    void checkUnderwater();
+    void setWaterHeight(const float height);
+    void toggleWater();
+
     /// \param store Cell the object was in previously (\a ptr has already been updated to the new cell).
     void moveObjectToCell (const MWWorld::Ptr& ptr, const Ogre::Vector3& position, MWWorld::Ptr::CellStore *store);
 
@@ -133,7 +143,9 @@ class RenderingManager: private RenderingInterface {
     void setAmbientMode();
     
     SkyManager* mSkyManager;
-    
+
+    MWRender::Water *mWater;
+
     OEngine::Render::OgreRenderer &mRendering;
 
     MWRender::Objects mObjects;

apps/openmw/mwrender/water.cpp

@@ -0,0 +1,95 @@
+#include "water.hpp"
+
+namespace MWRender
+{
+
+Water::Water (Ogre::Camera *camera, const ESM::Cell* cell) :
+    mCamera (camera), mViewport (camera->getViewport()), mSceneManager (camera->getSceneManager()),
+    mIsUnderwater(false)
+{
+    try
+    {
+        Ogre::CompositorManager::getSingleton().addCompositor(mViewport, "Water", -1);
+        Ogre::CompositorManager::getSingleton().setCompositorEnabled(mViewport, "Water", false);
+    } catch(...) {}
+
+    mTop = cell->water;
+
+    mIsUnderwater = false;
+
+    mWaterPlane = Ogre::Plane(Ogre::Vector3::UNIT_Y, 0);
+
+    Ogre::MeshManager::getSingleton().createPlane("water", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,  mWaterPlane, CELL_SIZE*5, CELL_SIZE * 5, 10, 10, true, 1, 3,5, Ogre::Vector3::UNIT_Z);
+
+    mWater = mSceneManager->createEntity("water");
+
+    mWater->setMaterialName("Examples/Water0");
+
+    mWaterNode = mSceneManager->getRootSceneNode()->createChildSceneNode();
+    mWaterNode->setPosition(0, mTop, 0);
+
+    if(!(cell->data.flags & cell->Interior))
+    {
+        mWaterNode->setPosition(getSceneNodeCoordinates(cell->data.gridX, cell->data.gridY));
+    }
+    mWaterNode->attachObject(mWater);
+}
+
+
+Water::~Water()
+{
+    Ogre::MeshManager::getSingleton().remove("water");
+
+    mWaterNode->detachObject(mWater);
+    mSceneManager->destroyEntity(mWater);
+    mSceneManager->destroySceneNode(mWaterNode);
+
+    Ogre::CompositorManager::getSingleton().removeCompositorChain(mViewport);
+}
+
+void Water::changeCell(const ESM::Cell* cell)
+{
+    mTop = cell->water;
+
+    if(!(cell->data.flags & cell->Interior))
+        mWaterNode->setPosition(getSceneNodeCoordinates(cell->data.gridX, cell->data.gridY));
+    else
+        setHeight(mTop);
+}
+
+void Water::setHeight(const float height)
+{
+    mTop = height;
+    mWaterNode->setPosition(0, height, 0);
+}
+
+void Water::toggle()
+{
+    mWater->setVisible(!mWater->getVisible());
+}
+
+void Water::checkUnderwater(float y)
+{
+    if ((mIsUnderwater && y > mTop) || !mWater->isVisible())
+    {
+        try {
+            Ogre::CompositorManager::getSingleton().setCompositorEnabled(mViewport, "Water", false);
+        } catch(...) {}
+        mIsUnderwater = false;
+    } 
+
+    if (!mIsUnderwater && y < mTop && mWater->isVisible())
+    {
+        try {
+            Ogre::CompositorManager::getSingleton().setCompositorEnabled(mViewport, "Water", true);
+        } catch(...) {}
+        mIsUnderwater = true;
+    }
+}
+
+Ogre::Vector3 Water::getSceneNodeCoordinates(int gridX, int gridY)
+{
+    return Ogre::Vector3(gridX * CELL_SIZE + (CELL_SIZE / 2), mTop, -gridY * CELL_SIZE - (CELL_SIZE / 2));
+}
+
+} // namespace

apps/openmw/mwrender/water.hpp

@@ -0,0 +1,40 @@
+#ifndef GAME_MWRENDER_WATER_H
+#define GAME_MWRENDER_WATER_H
+
+#include <Ogre.h>
+#include <components/esm/loadcell.hpp>
+
+namespace MWRender {
+
+    /// Water rendering 	
+    class Water : Ogre::RenderTargetListener, Ogre::Camera::Listener
+    {
+        static const int CELL_SIZE = 8192;
+        Ogre::Camera *mCamera;
+        Ogre::SceneManager *mSceneManager;
+        Ogre::Viewport *mViewport;
+
+        Ogre::Plane mWaterPlane;
+        Ogre::SceneNode *mWaterNode;
+        Ogre::Entity *mWater;
+
+        bool mIsUnderwater;
+        int mTop;
+
+        Ogre::Vector3 getSceneNodeCoordinates(int gridX, int gridY);
+
+    public:
+        Water (Ogre::Camera *camera, const ESM::Cell* cell);
+        ~Water();
+
+        void toggle();
+
+        void checkUnderwater(float y);
+        void changeCell(const ESM::Cell* cell);
+        void setHeight(const float height);
+
+    };
+
+}
+
+#endif

apps/openmw/mwscript/cellextensions.cpp

@@ -133,11 +133,70 @@ namespace MWScript
                 }
         };
 
+        class OpGetWaterLevel : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context
+                        = static_cast<InterpreterContext&> (runtime.getContext());
+
+                    const ESM::Cell *cell = context.getWorld().getPlayer().getPlayer().getCell()->cell;
+                    runtime.push (cell->water);
+                }
+        };
+
+        class OpSetWaterLevel : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context
+                        = static_cast<InterpreterContext&> (runtime.getContext());
+
+                    Interpreter::Type_Float level = runtime[0].mFloat;
+
+                    MWWorld::Ptr::CellStore *cell = context.getWorld().getPlayer().getPlayer().getCell();
+
+                    if (!(cell->cell->data.flags & ESM::Cell::Interior))
+                        throw std::runtime_error("Can't set water level in exterior cell");
+
+                    cell->mWaterLevel = level;
+                    context.getEnvironment().mWorld->setWaterHeight(cell->mWaterLevel);
+                }
+        };
+
+        class OpModWaterLevel : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context
+                        = static_cast<InterpreterContext&> (runtime.getContext());
+
+                    Interpreter::Type_Float level = runtime[0].mFloat;
+
+                    MWWorld::Ptr::CellStore *cell = context.getWorld().getPlayer().getPlayer().getCell();
+
+                    if (!(cell->cell->data.flags & ESM::Cell::Interior))
+                        throw std::runtime_error("Can't set water level in exterior cell");
+                    
+                    cell->mWaterLevel +=level;
+                    context.getEnvironment().mWorld->setWaterHeight(cell->mWaterLevel);
+                }
+        };
+
         const int opcodeCellChanged = 0x2000000;
         const int opcodeCOC = 0x2000026;
         const int opcodeCOE = 0x200008e;
         const int opcodeGetInterior = 0x2000131;
         const int opcodeGetPCCell = 0x2000136;
+        const int opcodeGetWaterLevel = 0x2000141;
+        const int opcodeSetWaterLevel = 0x2000142;
+        const int opcodeModWaterLevel = 0x2000143;
 
         void registerExtensions (Compiler::Extensions& extensions)
         {
@@ -146,8 +205,11 @@ namespace MWScript
             extensions.registerInstruction ("centeroncell", "S", opcodeCOC);
             extensions.registerInstruction ("coe", "ll", opcodeCOE);
             extensions.registerInstruction ("centeronexterior", "ll", opcodeCOE);
+            extensions.registerInstruction ("setwaterlevel", "f", opcodeSetWaterLevel);
+            extensions.registerInstruction ("modwaterlevel", "f", opcodeModWaterLevel);
             extensions.registerFunction ("getinterior", 'l', "", opcodeGetInterior);
             extensions.registerFunction ("getpccell", 'l', "c", opcodeGetPCCell);
+            extensions.registerFunction ("getwaterlevel", 'f', "", opcodeGetWaterLevel);
         }
 
         void installOpcodes (Interpreter::Interpreter& interpreter)
@@ -157,6 +219,9 @@ namespace MWScript
             interpreter.installSegment5 (opcodeCOE, new OpCOE);
             interpreter.installSegment5 (opcodeGetInterior, new OpGetInterior);
             interpreter.installSegment5 (opcodeGetPCCell, new OpGetPCCell);
+            interpreter.installSegment5 (opcodeGetWaterLevel, new OpGetWaterLevel);
+            interpreter.installSegment5 (opcodeSetWaterLevel, new OpSetWaterLevel);
+            interpreter.installSegment5 (opcodeModWaterLevel, new OpModWaterLevel);
         }
     }
 }

apps/openmw/mwscript/docs/vmformat.txt

@@ -123,4 +123,8 @@ op 0x200013d: FadeOut
 op 0x200013e: FadeTo
 op 0x200013f: GetCurrentWeather
 op 0x2000140: ChangeWeather
-opcodes 0x2000141-0x3ffffff unused
+op 0x2000141: GetWaterLevel
+op 0x2000142: SetWaterLevel
+op 0x2000143: ModWaterLevel
+op 0x2000144: ToggleWater, twa
+opcodes 0x2000145-0x3ffffff unused

apps/openmw/mwscript/miscextensions.cpp

@@ -175,6 +175,19 @@ namespace MWScript
                 }
         };
 
+        class OpToggleWater : public Interpreter::Opcode0
+        {
+            public:
+
+                virtual void execute (Interpreter::Runtime& runtime)
+                {
+                    InterpreterContext& context =
+                        static_cast<InterpreterContext&> (runtime.getContext());
+
+                    context.getWorld().toggleWater();
+                }
+        };
+
         const int opcodeXBox = 0x200000c;
         const int opcodeOnActivate = 0x200000d;
         const int opcodeActivate = 0x2000075;
@@ -187,6 +200,7 @@ namespace MWScript
         const int opcodeFadeIn = 0x200013c;
         const int opcodeFadeOut = 0x200013d;
         const int opcodeFadeTo = 0x200013e;
+        const int opcodeToggleWater = 0x2000144;
 
         void registerExtensions (Compiler::Extensions& extensions)
         {
@@ -204,6 +218,8 @@ namespace MWScript
             extensions.registerInstruction ("fadein", "f", opcodeFadeIn);
             extensions.registerInstruction ("fadeout", "f", opcodeFadeOut);
             extensions.registerInstruction ("fadeto", "ff", opcodeFadeTo);
+            extensions.registerInstruction ("togglewater", "", opcodeToggleWater);
+            extensions.registerInstruction ("twa", "", opcodeToggleWater);
         }
 
         void installOpcodes (Interpreter::Interpreter& interpreter)
@@ -220,6 +236,7 @@ namespace MWScript
             interpreter.installSegment5 (opcodeFadeIn, new OpFadeIn);
             interpreter.installSegment5 (opcodeFadeOut, new OpFadeOut);
             interpreter.installSegment5 (opcodeFadeTo, new OpFadeTo);
+            interpreter.installSegment5 (opcodeToggleWater, new OpToggleWater);
         }
     }
 }

apps/openmw/mwworld/scene.cpp

@@ -54,9 +54,11 @@ void insertCellRefList(MWRender::RenderingManager& rendering, MWWorld::Environme
 
 namespace MWWorld
 {
+
     void Scene::update (float duration){
         mRendering.update (duration);
     }
+
     void Scene::unloadCell (CellStoreCollection::iterator iter)
     {
         std::cout << "Unloading cell\n";
@@ -79,6 +81,7 @@ namespace MWWorld
                 mPhysics->removeObject (node->getName());
             }
         }
+
 		mRendering.removeCell(*iter);
 		//mPhysics->removeObject("Unnamed_43");
 
@@ -87,6 +90,7 @@ namespace MWWorld
         mEnvironment.mSoundManager->stopSound (*iter);
 		mActiveCells.erase(*iter);
         
+
         
     }
 
@@ -101,7 +105,7 @@ namespace MWWorld
             mActiveCells.insert(cell);
        if(result.second){
               insertCell(*cell, mEnvironment);
-               mRendering.cellAdded (cell);
+              mRendering.cellAdded(cell);
                mRendering.configureAmbient(*cell);
                mRendering.requestMap(cell);
                mRendering.configureAmbient(*cell);
@@ -192,6 +196,7 @@ namespace MWWorld
 
         mCurrentCell = *iter;
 
+
         // adjust player
         playerCellChange (mWorld->getExterior(X, Y), position, adjustPlayerPos);
 
@@ -199,6 +204,7 @@ namespace MWWorld
         mWorld->adjustSky();
 
         mCellChanged = true;
+        mRendering.waterAdded(mCurrentCell);
     }
 
     //We need the ogre renderer and a scene node.
@@ -238,6 +244,7 @@ namespace MWWorld
         Ptr::CellStore *cell = mWorld->getInterior(cellName);
 
         loadCell (cell);
+        
 
         // adjust player
         mCurrentCell = cell;
@@ -250,6 +257,8 @@ namespace MWWorld
         mWorld->adjustSky();
 
         mCellChanged = true;
+
+        mRendering.waterAdded(cell);
     }
 
     void Scene::changeToExteriorCell (const ESM::Position& position)

apps/openmw/mwworld/world.cpp

@@ -531,9 +531,10 @@ namespace MWWorld
         ptr.getRefData().getPosition().pos[0] = x;
         ptr.getRefData().getPosition().pos[1] = y;
         ptr.getRefData().getPosition().pos[2] = z;
-
         if (ptr==mPlayer->getPlayer())
         {
+            //std::cout << "X:" <<   ptr.getRefData().getPosition().pos[0] << " Z: "  << ptr.getRefData().getPosition().pos[1] << "\n";
+            
             Ptr::CellStore *currentCell = mWorldScene->getCurrentCell();
             if (currentCell)
             {
@@ -754,4 +755,15 @@ namespace MWWorld
     {
         return mRendering->getFader();
     }
+
+    void World::setWaterHeight(const float height)
+    {
+        mRendering->setWaterHeight(height);
+    }
+
+    void World::toggleWater()
+    {
+        mRendering->toggleWater();
+    }
+
 }

apps/openmw/mwworld/world.hpp

@@ -112,6 +112,9 @@ namespace MWWorld
             Ptr::CellStore *getExterior (int x, int y);
 
             Ptr::CellStore *getInterior (const std::string& name);
+
+            void setWaterHeight(const float height);
+            void toggleWater();
             
             void adjustSky();
 

components/esm/loadcell.cpp

@@ -22,8 +22,7 @@ void Cell::load(ESMReader &esm)
     {
         // Interior cells
 
-        if (esm.isNextSub("INTV") || esm.isNextSub("WHGT"))
+        esm.getHNT(water, "WHGT", 4);
-            esm.getHT(water);
 
         // Quasi-exterior cells have a region (which determines the
         // weather), pure interior cells have ambient lighting

components/esm/loadcell.hpp

@@ -114,7 +114,7 @@ struct Cell
   ESM_Context context; // File position
   DATAstruct data;
   AMBIstruct ambi;
-  int water; // Water level
+  float water; // Water level
   int mapColor;
 
   void load(ESMReader &esm);

components/esm_store/cell_store.hpp

@@ -95,12 +95,17 @@ namespace ESMS
         State_Unloaded, State_Preloaded, State_Loaded
     };
 
-    CellStore (const ESM::Cell *cell_) : cell (cell_), mState (State_Unloaded) {}
+    CellStore (const ESM::Cell *cell_) : cell (cell_), mState (State_Unloaded)
+    {
+        mWaterLevel = cell->water;
+    }
 
     const ESM::Cell *cell;
     State mState;
     std::vector<std::string> mIds;
 
+    float mWaterLevel;
+
     // Lists for each individual object type
     CellRefList<Activator, D>         activators;
     CellRefList<Potion, D>            potions;

files/CMakeLists.txt

@@ -0,0 +1,13 @@
+project(resources)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/caustic_0.png "${OpenMW_BINARY_DIR}/resources/water/caustic_0.png" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/Example_Fresnel.cg "${OpenMW_BINARY_DIR}/resources/water/Example_Fresnel.cg" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/Example_FresnelPS.asm "${OpenMW_BINARY_DIR}/resources/water/Example_FresnelPS.asm" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/GlassFP.cg "${OpenMW_BINARY_DIR}/resources/water/GlassFP.cg" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/GlassVP.cg "${OpenMW_BINARY_DIR}/resources/water/GlassVP.cg" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/perlinvolume.dds "${OpenMW_BINARY_DIR}/resources/water/perlinvolume.dds" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/Water02.jpg "${OpenMW_BINARY_DIR}/resources/water/Water02.jpg" COPYONLY) 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/water.compositor "${OpenMW_BINARY_DIR}/resources/water/water.compositor" COPYONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/waves2.dds "${OpenMW_BINARY_DIR}/resources/water/waves2.dds" COPYONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/Examples-Water.material "${OpenMW_BINARY_DIR}/resources/water/Examples-Water.material" COPYONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/water/WaterNormal1.tga "${OpenMW_BINARY_DIR}/resources/water/WaterNormal1.tga" COPYONLY)

files/water/Example_Fresnel.cg

@@ -0,0 +1,116 @@
+// Vertex program for fresnel reflections / refractions
+void main_vp(
+		float4 pos			: POSITION,
+		float4 normal		: NORMAL,
+		float2 tex			: TEXCOORD0,
+		
+		out float4 oPos		: POSITION,
+		out float3 noiseCoord : TEXCOORD0,
+		out float4 projectionCoord : TEXCOORD1,
+		out float3 oEyeDir : TEXCOORD2, 
+		out float3 oNormal : TEXCOORD3, 
+
+		uniform float4x4 worldViewProjMatrix,
+		uniform float3 eyePosition, // object space
+		uniform float timeVal,
+		uniform float scale,  // the amount to scale the noise texture by
+		uniform float scroll, // the amount by which to scroll the noise
+		uniform float noise  // the noise perturb as a factor of the  time
+		)
+{
+	oPos = mul(worldViewProjMatrix, pos);
+	// Projective texture coordinates, adjust for mapping
+	float4x4 scalemat = float4x4(0.5,   0,   0, 0.5, 
+	                               0,-0.5,   0, 0.5,
+								   0,   0, 0.5, 0.5,
+								   0,   0,   0,   1);
+	projectionCoord = mul(scalemat, oPos);
+	// Noise map coords
+	noiseCoord.xy = (tex + (timeVal * scroll)) * scale;
+	noiseCoord.z = noise * timeVal;
+
+	oEyeDir = normalize(pos.xyz - eyePosition); 
+	oNormal = normal.rgb; 
+	
+}
+
+// Fragment program for distorting a texture using a 3D noise texture
+void main_fp(
+		float3 noiseCoord			: TEXCOORD0,
+		float4 projectionCoord		: TEXCOORD1,
+		float3 eyeDir				: TEXCOORD2,
+		float3 normal				: TEXCOORD3,
+		
+		out float4 col		: COLOR,
+		
+		uniform float4 tintColour,
+		uniform float noiseScale, 
+		uniform float fresnelBias,
+		uniform float fresnelScale,
+		uniform float fresnelPower,
+		uniform sampler2D waterTex : register(s0),
+		uniform sampler2D noiseMap : register(s1),
+		uniform sampler2D reflectMap : register(s2),
+		uniform sampler2D refractMap : register(s3)
+		)
+{
+	// Do the tex projection manually so we can distort _after_
+	float2 final = projectionCoord.xy / projectionCoord.w;
+
+	// Noise
+	float3 noiseNormal = (tex2D(noiseMap, (noiseCoord.xy / 5)).rgb - 0.5).rbg * noiseScale;
+	final += noiseNormal.xz;
+
+	// Fresnel
+	//normal = normalize(normal + noiseNormal.xz);
+	float fresnel = fresnelBias + fresnelScale * pow(1 + dot(eyeDir, normal), fresnelPower);
+
+	// Reflection / refraction
+	float4 reflectionColour = tex2D(reflectMap, final);
+	float4 refractionColour = tex2D(refractMap, final) + tintColour;
+
+	// Final colour
+	col = lerp(refractionColour, reflectionColour, fresnel) * tex2D(waterTex, noiseNormal) / 3 ;
+
+
+}
+
+
+// Old version to match ATI PS 1.3 implementation
+void main_vp_old(
+		float4 pos			: POSITION,
+		float4 normal		: NORMAL,
+		float2 tex			: TEXCOORD0,
+		
+		out float4 oPos		: POSITION,
+		out float fresnel   : COLOR,
+		out float3 noiseCoord : TEXCOORD0,
+		out float4 projectionCoord : TEXCOORD1,
+
+		uniform float4x4 worldViewProjMatrix,
+		uniform float3 eyePosition, // object space
+		uniform float fresnelBias,
+		uniform float fresnelScale,
+		uniform float fresnelPower,
+		uniform float timeVal,
+		uniform float scale,  // the amount to scale the noise texture by
+		uniform float scroll, // the amount by which to scroll the noise
+		uniform float noise  // the noise perturb as a factor of the  time
+		)
+{
+	oPos = mul(worldViewProjMatrix, pos);
+	// Projective texture coordinates, adjust for mapping
+	float4x4 scalemat = float4x4(0.5,   0,   0, 0.5, 
+	                               0,-0.5,   0, 0.5,
+								   0,   0, 0.5, 0.5,
+								   0,   0,   0,   1);
+	projectionCoord = mul(scalemat, oPos);
+	// Noise map coords
+	noiseCoord.xy = (tex + (timeVal * scroll)) * scale;
+	noiseCoord.z = noise * timeVal;
+
+	// calc fresnel factor (reflection coefficient)
+	float3 eyeDir = normalize(pos.xyz - eyePosition);
+	fresnel = fresnelBias + fresnelScale * pow(1 + dot(eyeDir, normal), fresnelPower);
+	
+}

files/water/Example_FresnelPS.asm

@@ -0,0 +1,72 @@
+ps.1.4
+  // conversion from Cg generated ARB_fragment_program to ps.1.4 by NFZ
+  // command line args: -profile arbfp1 -entry main_fp
+  // program main_fp
+  // c0 : distortionRange
+  // c1 : tintColour
+  // testure 0 : noiseMap
+  // texture 1 : reflectMap
+  // texture 2 : refractMap
+  // v0.x : fresnel 
+  // t0.xyz : noiseCoord
+  // t1.xyw : projectionCoord 
+
+def c2, 2, 1, 0, 0
+
+  // Cg:	distort.x = tex3D(noiseMap, noiseCoord).x;
+  // arbfp1:	TEX R0.x, fragment.texcoord[0], texture[0], 3D;
+  // sample noise map using noiseCoord in TEX unit 0 
+
+texld r0, t0.xyz
+
+  // get projected texture coordinates from TEX coord 1
+  // will be used in phase 2
+
+texcrd r1.xy, t1_dw.xyw
+mov r1.z, c2.y
+
+  // Cg:	distort.y = tex3D(noiseMap, noiseCoord + yoffset).x;
+  // arbfp1:	ADD R1.xyz, fragment.texcoord[0], c1;
+  // arbfp1:	TEX R1.x, R1, texture[0], 3D;
+  // arbfp1:	MOV R0.y, R1.x;
+
+  // Cg:	distort = (distort * 2 - 1) * distortionRange;
+  // arbfp1:	MAD R0.xy, R0, c0.x, -c0.y;
+  // arbfp1:	MUL R0.xy, R0, u0.x;
+  // (distort * 2 - 1) same as 2*(distort -.5) so use _bx2
+
+
+  // Cg:	final = projectionCoord.xy / projectionCoord.w;
+  // Cg:	final += distort;
+  // arbfp1:	RCP R0.w, fragment.texcoord[1].w;
+  // arbfp1:	MAD R0.xy, fragment.texcoord[1], R0.w, R0;
+  // 	final = (distort *  projectionCoord.w) + projectionCoord.xy
+  // for ps.1.4 have to re-arrange things a bit to perturb projected texture coordinates
+
+mad r0.xyz, r0_bx2, c0.x, r1
+
+phase
+
+  // do dependant texture reads
+  // Cg:	reflectionColour = tex2D(reflectMap, final);
+  // arbfp1:	TEX R0, R0, texture[1], 2D;
+  // sampe reflectMap using dependant read : texunit 1 
+
+texld r1, r0.xyz
+
+  // Cg:	refractionColour = tex2D(refractMap, final) + tintColour;
+  // arbfp1:	TEX R1, R0, texture[2], 2D;
+  // sample refractMap : texunit 2 
+
+texld r2, r0.xyz
+
+  // adding tintColour that is in global c1
+  // arbfp1:	ADD R1, R1, u1;
+
+add r2, r2, c1
+
+  // Cg:	col = lerp(refractionColour, reflectionColour, fresnel);
+  // arbfp1:	ADD R0, R0, -R1;
+  // arbfp1:	MAD result.color, fragment.color.primary.x, R0, R1;
+
+lrp r0, v0.x, r1, r2

files/water/Examples-Water.material

@@ -0,0 +1,149 @@
+
+vertex_program Water/GlassVP cg
+{
+	source GlassVP.cg
+	entry_point glass_vp
+	profiles vs_1_1 arbvp1
+
+	default_params 
+	{
+		param_named_auto worldViewProj worldviewproj_matrix
+	}
+}
+
+
+fragment_program Water/GlassFP cg
+{
+	source GlassFP.cg
+	entry_point main_ps
+	profiles ps_2_0 arbfp1
+}
+
+material Water/Compositor
+{
+	technique
+	{
+		pass
+		{
+			depth_check off
+			vertex_program_ref Water/GlassVP
+			{
+				param_named_auto timeVal time 0.25
+				param_named scale float 0.1
+			}
+
+			fragment_program_ref Water/GlassFP
+			{
+				param_named tintColour float4 0 0.35 0.35 1
+			}
+
+			texture_unit RT
+			{
+			        tex_coord_set 0
+				tex_address_mode clamp
+				filtering linear linear linear
+			}
+
+			texture_unit
+			{
+				texture WaterNormal1.tga 2d
+                		tex_coord_set 1
+				//tex_address_mode clamp
+				filtering linear linear linear
+			}
+			texture_unit
+			{
+				texture caustic_0.png 2d
+                		tex_coord_set 2
+				//tex_address_mode clamp
+				filtering linear linear linear
+			}
+		}
+	}
+}
+vertex_program Water/RefractReflectVP cg
+{
+	source Example_Fresnel.cg
+	entry_point main_vp
+	profiles vs_1_1 arbvp1
+}
+vertex_program Water/RefractReflectVPold cg
+{
+	source Example_Fresnel.cg
+	entry_point main_vp_old
+	profiles vs_1_1 arbvp1
+}
+
+fragment_program Water/RefractReflectFP cg
+{
+	source Example_Fresnel.cg
+	entry_point main_fp
+	// sorry, ps_1_1 and fp20 can't do this
+	profiles ps_2_0 arbfp1
+}
+
+fragment_program Water/RefractReflectPS asm
+{
+	source Example_FresnelPS.asm
+	// sorry, only for ps_1_4 :)
+	syntax ps_1_4
+
+}
+material Examples/Water0
+{
+
+	technique
+	{
+		pass 
+		{
+			//
+       			
+			depth_write off
+			vertex_program_ref Water/RefractReflectVP
+			{
+				param_named_auto worldViewProjMatrix worldviewproj_matrix
+				param_named_auto eyePosition camera_position_object_space
+				param_named_auto timeVal time 0.15
+				param_named scroll float 1  
+				param_named scale float 1 
+				param_named noise float 1 
+				// scroll and noisePos will need updating per frame
+			}
+			fragment_program_ref Water/RefractReflectFP
+			{
+				param_named fresnelBias float -0.1 
+				param_named fresnelScale float 0.8 
+				param_named fresnelPower float 20  
+				param_named tintColour float4 1 1 1 1
+				param_named noiseScale float 0.05 
+			}
+			// Water
+			scene_blend alpha_blend
+			texture_unit
+			{
+				
+				// Water texture
+				texture Water02.jpg
+				// min / mag filtering, no mip
+				filtering linear linear none
+				alpha_op_ex source1 src_manual src_current 0.9
+				
+			}
+			// Noise
+			texture_unit
+			{
+				alpha_op_ex source1 src_manual src_current 0.9
+				// Perlin noise volume
+				texture waves2.dds
+				// min / mag filtering, no mip
+				filtering linear linear none
+			}
+			
+		
+		}
+		
+			
+	}
+	
+}
+

files/water/GlassFP.cg

@@ -0,0 +1,15 @@
+sampler RT : register(s0);
+sampler NormalMap : register(s1);
+sampler CausticMap : register(s2);
+
+float4 main_ps(float2 iTexCoord : TEXCOORD0,
+       	       float3 noiseCoord : TEXCOORD1,
+       	       uniform float4 tintColour) : COLOR
+{
+	float4 normal = tex2D(NormalMap, noiseCoord);
+	
+
+	return tex2D(RT, iTexCoord + normal.xy * 0.05) +
+	       (tex2D(CausticMap, noiseCoord) / 5) +
+	       tintColour ;
+}

files/water/GlassVP.cg

@@ -0,0 +1,24 @@
+void glass_vp
+(
+    in float4 inPos : POSITION,
+
+    out float4 pos : POSITION,
+    out float2 uv0 : TEXCOORD0,
+    out float4 noiseCoord : TEXCOORD1,
+
+    uniform float4x4 worldViewProj,
+    uniform float timeVal,
+    uniform float scale
+)
+{
+    // Use standardise transform, so work accord with render system specific (RS depth, requires texture flipping, etc)
+    pos = mul(worldViewProj, inPos);
+
+    // The input positions adjusted by texel offsets, so clean up inaccuracies
+    inPos.xy = sign(inPos.xy);
+
+    // Convert to image-space
+    uv0 = (float2(inPos.x, -inPos.y) + 1.0f) * 0.5f;
+    noiseCoord = (pos + timeVal) * scale;
+}
+

files/water/water.compositor

@@ -0,0 +1,21 @@
+compositor Water
+{
+    technique
+    {
+        texture rt0 target_width target_height PF_R8G8B8
+
+        target rt0 { input previous }
+
+        target_output
+        {
+            // Start with clear output
+            input none
+
+            pass render_quad
+            {
+                material Water/Compositor
+                input 0 rt0
+            }
+        }
+    }
+}