Merge pull request #519 from DavidWyand-GG/OculusRiftUpdate2

Turbulence respects viewport and projection offset

Engine/source/postFx/postEffect.cpp

@@ -256,6 +256,7 @@ PostEffect::PostEffect()
       mRTSizeSC( NULL ),
       mOneOverRTSizeSC( NULL ),
       mViewportOffsetSC( NULL ),
+      mTargetViewportSC( NULL ),
       mFogDataSC( NULL ),
       mFogColorSC( NULL ),
       mEyePosSC( NULL ),
@@ -265,6 +266,7 @@ PostEffect::PostEffect()
       mNearFarSC( NULL ),
       mInvNearFarSC( NULL ),
       mWorldToScreenScaleSC( NULL ),
+      mProjectionOffsetSC( NULL ),
       mWaterColorSC( NULL ),
       mWaterFogDataSC( NULL ),
       mAmbientColorSC( NULL ),
@@ -541,6 +543,8 @@ void PostEffect::_setupConstants( const SceneRenderState *state )
 
       //mViewportSC = shader->getShaderConstHandle( "$viewport" );
 
+      mTargetViewportSC = mShader->getShaderConstHandle( "$targetViewport" );
+
       mFogDataSC = mShader->getShaderConstHandle( ShaderGenVars::fogData );
       mFogColorSC = mShader->getShaderConstHandle( ShaderGenVars::fogColor );
 
@@ -554,6 +558,8 @@ void PostEffect::_setupConstants( const SceneRenderState *state )
       mMatScreenToWorldSC = mShader->getShaderConstHandle( "$matScreenToWorld" );
       mMatPrevScreenToWorldSC = mShader->getShaderConstHandle( "$matPrevScreenToWorld" );
 
+      mProjectionOffsetSC = mShader->getShaderConstHandle( "$projectionOffset" );
+
       mWaterColorSC = mShader->getShaderConstHandle( "$waterColor" );
       mAmbientColorSC = mShader->getShaderConstHandle( "$ambientColor" );
       mWaterFogDataSC = mShader->getShaderConstHandle( "$waterFogData" );
@@ -621,6 +627,27 @@ void PostEffect::_setupConstants( const SceneRenderState *state )
       mShaderConsts->set( mRenderTargetParamsSC[i], rtParams );
    }
 
+   // Target viewport (in target space)
+   if ( mTargetViewportSC->isValid() )
+   {
+      const Point2I& targetSize = GFX->getActiveRenderTarget()->getSize();
+      Point3I size(targetSize.x, targetSize.y, 0);
+      const RectI& viewport = GFX->getViewport();
+
+      Point2F offset((F32)viewport.point.x / (F32)targetSize.x, (F32)viewport.point.y / (F32)targetSize.y );
+      Point2F scale((F32)viewport.extent.x / (F32)targetSize.x, (F32)viewport.extent.y / (F32)targetSize.y );
+
+      const Point2F halfPixel( 0.5f / targetSize.x, 0.5f / targetSize.y );
+
+      Point4F targetParams;
+      targetParams.x = offset.x + halfPixel.x;
+      targetParams.y = offset.y + halfPixel.y;
+      targetParams.z = offset.x + scale.x - halfPixel.x;
+      targetParams.w = offset.y + scale.y - halfPixel.y;
+
+      mShaderConsts->set( mTargetViewportSC, targetParams );
+   }
+
    // Set the fog data.
    if ( mFogDataSC->isValid() )
    {
@@ -692,6 +719,7 @@ void PostEffect::_setupConstants( const SceneRenderState *state )
       mShaderConsts->setSafe( mNearFarSC, Point2F( state->getNearPlane(), state->getFarPlane() ) );
       mShaderConsts->setSafe( mInvNearFarSC, Point2F( 1.0f / state->getNearPlane(), 1.0f / state->getFarPlane() ) );
       mShaderConsts->setSafe( mWorldToScreenScaleSC, state->getWorldToScreenScale() );
+      mShaderConsts->setSafe( mProjectionOffsetSC, state->getFrustum().getProjectionOffset() );
       mShaderConsts->setSafe( mFogColorSC, state->getSceneManager()->getFogData().color );
 
       if ( mWaterColorSC->isValid() )

Engine/source/postFx/postEffect.h

@@ -118,6 +118,8 @@ protected:
 
    GFXShaderConstHandle *mViewportOffsetSC;
 
+   GFXShaderConstHandle *mTargetViewportSC;
+
    GFXShaderConstHandle *mFogDataSC;
    GFXShaderConstHandle *mFogColorSC;
    GFXShaderConstHandle *mEyePosSC;
@@ -127,6 +129,7 @@ protected:
    GFXShaderConstHandle *mNearFarSC;
    GFXShaderConstHandle *mInvNearFarSC;   
    GFXShaderConstHandle *mWorldToScreenScaleSC;
+   GFXShaderConstHandle *mProjectionOffsetSC;
    GFXShaderConstHandle *mWaterColorSC;
    GFXShaderConstHandle *mWaterFogDataSC;     
    GFXShaderConstHandle *mAmbientColorSC;

Templates/Empty/game/core/scripts/client/postFx/turbulence.cs

@@ -35,7 +35,6 @@ singleton ShaderData( PFX_TurbulenceShader )
    DXVertexShaderFile 	= "shaders/common/postFx/postFxV.hlsl";
    DXPixelShaderFile 	= "shaders/common/postFx/turbulenceP.hlsl";
            
-   samplerNames[0] = "$inputTex";            
    pixVersion = 3.0;
 };
 
@@ -45,8 +44,9 @@ singleton PostEffect( TurbulenceFx )
    isEnabled = false;    
    allowReflectPass = true;  
          
-   renderTime = "PFXAfterDiffuse";  
+   renderTime = "PFXAfterBin";
-   renderBin = "ObjTranslucentBin";     
+   renderBin = "GlowBin";
+   renderPriority = 10; // Render after the glows themselves
      
    shader = PFX_TurbulenceShader;  
    stateBlock=PFX_TurbulenceStateBlock;

Templates/Empty/game/shaders/common/postFx/turbulenceP.hlsl

@@ -23,13 +23,20 @@
 #include "./postFx.hlsl"
 
 uniform float  accumTime;
+uniform float2 projectionOffset;
+uniform float4 targetViewport;
 
 float4 main( PFXVertToPix IN, uniform sampler2D inputTex : register(S0) ) : COLOR
 {
 	float speed = 2.0;
 	float distortion = 6.0;
 	
-	float y = IN.uv0.y + (cos(IN.uv0.y * distortion + accumTime * speed) * 0.01);
+	float y = IN.uv0.y + (cos((IN.uv0.y+projectionOffset.y) * distortion + accumTime * speed) * 0.01);
-    float x = IN.uv0.x + (sin(IN.uv0.x * distortion + accumTime * speed) * 0.01);
+   float x = IN.uv0.x + (sin((IN.uv0.x+projectionOffset.x) * distortion + accumTime * speed) * 0.01);
+
+   // Clamp the calculated uv values to be within the target's viewport
+	y = clamp(y, targetViewport.y, targetViewport.w);
+	x = clamp(x, targetViewport.x, targetViewport.z);
+	
     return tex2D (inputTex, float2(x, y));
 }

Templates/Full/game/core/scripts/client/postFx/turbulence.cs

@@ -35,7 +35,6 @@ singleton ShaderData( PFX_TurbulenceShader )
    DXVertexShaderFile 	= "shaders/common/postFx/postFxV.hlsl";
    DXPixelShaderFile 	= "shaders/common/postFx/turbulenceP.hlsl";
            
-   samplerNames[0] = "$inputTex";   
    pixVersion = 3.0;
 };
 
@@ -45,8 +44,9 @@ singleton PostEffect( TurbulenceFx )
    isEnabled = false;    
    allowReflectPass = true;  
          
-   renderTime = "PFXAfterDiffuse";  
+   renderTime = "PFXAfterBin";
-   renderBin = "ObjTranslucentBin";     
+   renderBin = "GlowBin";
+   renderPriority = 10; // Render after the glows themselves
      
    shader = PFX_TurbulenceShader;  
    stateBlock=PFX_TurbulenceStateBlock;

Templates/Full/game/shaders/common/postFx/turbulenceP.hlsl

@@ -23,13 +23,20 @@
 #include "./postFx.hlsl"
 
 uniform float  accumTime;
+uniform float2 projectionOffset;
+uniform float4 targetViewport;
 
 float4 main( PFXVertToPix IN, uniform sampler2D inputTex : register(S0) ) : COLOR
 {
 	float speed = 2.0;
 	float distortion = 6.0;
 	
-	float y = IN.uv0.y + (cos(IN.uv0.y * distortion + accumTime * speed) * 0.01);
+	float y = IN.uv0.y + (cos((IN.uv0.y+projectionOffset.y) * distortion + accumTime * speed) * 0.01);
-    float x = IN.uv0.x + (sin(IN.uv0.x * distortion + accumTime * speed) * 0.01);
+   float x = IN.uv0.x + (sin((IN.uv0.x+projectionOffset.x) * distortion + accumTime * speed) * 0.01);
+
+   // Clamp the calculated uv values to be within the target's viewport
+	y = clamp(y, targetViewport.y, targetViewport.w);
+	x = clamp(x, targetViewport.x, targetViewport.z);
+	
     return tex2D (inputTex, float2(x, y));
 }