Method setShaderParams

Engine/source/environment/river.cpp:908–949

}

void River::setShaderParams( SceneRenderState *state, BaseMatInstance* mat, const WaterMatParams& paramHandles )
{
   // Set variables that will be assigned to shader consts within WaterCommon
   // before calling Parent::setShaderParams

   mUndulateMaxDist = mLodDistance;

   Parent::setShaderParams( state, mat, paramHandles );   

   // Now set the rest of the shader consts that are either unique to this
   // class or that WaterObject leaves to us to handle...

   MaterialParameters* matParams = mat->getMaterialParameters();  

   // set vertex shader constants
   //-----------------------------------           

   matParams->setSafe(paramHandles.mGridElementSizeSC, 1.0f);
   if ( paramHandles.mModelMatSC->isValid() )
      matParams->set(paramHandles.mModelMatSC, MatrixF::Identity, GFXSCT_Float4x4);

   // set pixel shader constants
   //-----------------------------------

   LinearColorF c( mWaterFogData.color );
   matParams->setSafe(paramHandles.mBaseColorSC, c);

   // By default we need to show a true reflection is fullReflect is enabled and
   // we are above water.
   F32 reflect = mPlaneReflector.isEnabled() && !isUnderwater( state->getCameraPosition() );
   
   // If we were occluded the last frame a query was fetched ( not necessarily last frame )
   // and we weren't updated last frame... we don't have a valid texture to show
   // so use the cubemap / fake reflection color this frame.
   if ( mPlaneReflector.lastUpdateMs != REFLECTMGR->getLastUpdateMs() && mPlaneReflector.isOccluded() )
      reflect = false;

   Point4F reflectParams( mWaterPos.z, 0.0f, 1000.0f, !reflect );
   matParams->setSafe(paramHandles.mReflectParamsSC, reflectParams );

   matParams->setSafe(paramHandles.mReflectNormalSC, mPlaneReflector.refplane );   
}

bool River::isUnderwater( const Point3F &pnt ) const
{