Method addElement

Engine/source/renderInstance/renderParticleMgr.cpp:102–255

}

void RenderParticleMgr::addElement( RenderInst *inst )
{
   ParticleRenderInst *pri = reinterpret_cast<ParticleRenderInst *>(inst);

   // If this system isn't waiting for an offscreen draw, skip it
   if( pri->systemState != PSS_AwaitingOffscreenDraw )
      return;

   // If offscreen rendering isn't enabled, set to high-res, and skip
   if(!mOffscreenRenderEnabled)
   {
      pri->systemState = PSS_AwaitingHighResDraw;
      return;
   }

   // Assign a target index
   RectF screenRect;
   S32 chainIndex = -1;
   if(RenderToSingleTarget)
   {
      pri->targetIndex = 0;
      screenRect.point.set(-1.0f, -1.0f);
      screenRect.extent.set(2.0f, 2.0f);

      mElementList.setSize(1);
   }
   else
   {

      // If we can't fit this into the offscreen systems, skip it, it will render
      // high resolution
      //
      // TODO: Improve this once we are grouping systems
      if( mTargetChainIdx == OffscreenPoolSize )
         return;

      // Transform bounding box into screen space
      const static PlaneF planes[] = {
         PlaneF(Point3F( 1.0f,  0.0f,  0.0f), Point3F(-1.0f,  0.0f,  0.0f)),
         PlaneF(Point3F(-1.0f,  0.0f,  0.0f), Point3F( 1.0f,  0.0f,  0.0f)),

         PlaneF(Point3F( 0.0f,  1.0f,  0.0f), Point3F( 0.0f, -1.0f,  0.0f)),
         PlaneF(Point3F( 0.0f, -1.0f,  0.0f), Point3F( 0.0f,  1.0f,  0.0f)),

         PlaneF(Point3F( 0.0f,  0.0f,  0.0f), Point3F( 0.0f,  0.0f,  1.0f)),
         PlaneF(Point3F( 0.0f,  0.0f,  1.0f), Point3F( 0.0f,  0.0f, -1.0f)),
      };
      const static dsize_t numPlanes = sizeof(planes) / sizeof(PlaneF);

      // Set up a clipper
      ClippedPolyList screenClipper;
      screenClipper.setBaseTransform(MatrixF::Identity);
      screenClipper.setTransform(&MatrixF::Identity, Point3F::One);
      TORQUE_UNUSED(numPlanes);

      Point4F tempPt(0.0f, 0.0f, 0.0f, 1.0f);
      pri->bbModelViewProj->mul(tempPt);
      tempPt = tempPt / tempPt.w;