Method prepRenderImage

Engine/source/environment/decalRoad.cpp:682–812

}

void DecalRoad::prepRenderImage( SceneRenderState* state )
{
   PROFILE_SCOPE( DecalRoad_prepRenderImage );

   if (  mNodes.size() <= 1 || 
         mBatches.size() == 0 ||
         !mMaterialInst ||
         state->isShadowPass() )
      return;

   // If we don't have a material instance after the override then 
   // we can skip rendering all together.
   BaseMatInstance *matInst = state->getOverrideMaterial(mMaterialInst);
   if ( !matInst )
      return;
      
   RenderPassManager *renderPass = state->getRenderPass();

   // Debug RenderInstance
   // Only when editor is open.
   if ( smEditorOpen )
   {
      ObjectRenderInst *ri = renderPass->allocInst<ObjectRenderInst>();
      ri->type = RenderPassManager::RIT_Editor;
      ri->renderDelegate.bind( this, &DecalRoad::_debugRender );
      state->getRenderPass()->addInst( ri );
   }

   // Normal Road RenderInstance
   // Always rendered when the editor is not open
   // otherwise obey the smShowRoad flag
   if ( !smShowRoad && smEditorOpen )
      return;

   const Frustum &frustum = state->getCameraFrustum();

   MeshRenderInst coreRI;
   coreRI.clear();
   coreRI.objectToWorld = &MatrixF::Identity;
   coreRI.worldToCamera = renderPass->allocSharedXform(RenderPassManager::View);
   
   MatrixF *tempMat = renderPass->allocUniqueXform( MatrixF( true ) );   
   MathUtils::getZBiasProjectionMatrix( gDecalBias, frustum, tempMat );
   coreRI.projection = tempMat;

   coreRI.type = RenderPassManager::RIT_DecalRoad;
   coreRI.vertBuff = &mVB;
   coreRI.primBuff = &mPB;
   coreRI.matInst = matInst;

   // Make it the sort distance the max distance so that 
   // it renders after all the other opaque geometry in 
   // the deferred bin.
   coreRI.sortDistSq = F32_MAX;

	// If we need lights then set them up.
   if ( matInst->isForwardLit() && !coreRI.lights[0])
   {