Engine directory for ticket #1

2026-03-25 23:29:24 +00:00 · 2012-09-19 11:15:01 -04:00 · 2012-09-19 11:15:01 -04:00 · 7dbfe6994d
commit 7dbfe6994d
parent 352279af7a
3795 changed files with 1363358 additions and 0 deletions
--- a/Engine/source/forest/ts/tsForestCellBatch.cpp
+++ b/Engine/source/forest/ts/tsForestCellBatch.cpp
@ -0,0 +1,149 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "platform/platform.h"
+#include "forest/ts/tsForestCellBatch.h"
+
+#include "forest/ts/tsForestItemData.h"
+#include "scene/sceneManager.h"
+#include "ts/tsLastDetail.h"
+
+
+TSForestCellBatch::TSForestCellBatch( TSLastDetail *detail )
+   :  mDetail( detail )
+{
+}
+
+TSForestCellBatch::~TSForestCellBatch()
+{
+}
+
+bool TSForestCellBatch::_prepBatch( const ForestItem &item )
+{
+   // Make sure it's our item type!
+   TSForestItemData* data = dynamic_cast<TSForestItemData*>( item.getData() );
+   if ( !data )
+      return false;
+
+   // TODO: Eventually we should atlas multiple details into
+   // a single combined texture map.  Till then we have to
+   // do one batch per-detail type.
+
+   // If the detail type doesn't match then 
+   // we need to start a new batch.
+   if ( data->getLastDetail() != mDetail )
+      return false;
+
+   return true;
+}
+
+void TSForestCellBatch::_rebuildBatch()
+{
+   // Clean up first.
+   mVB = NULL;
+   if ( mItems.empty() )
+      return;
+
+   // How big do we need to make this?
+   U32 verts = mItems.size() * 6;
+   mVB.set( GFX, verts, GFXBufferTypeStatic );
+   if ( !mVB.isValid() )
+   {
+      // If we failed it is probably because we requested
+      // a size bigger than a VB can be.  Warn the user.
+      AssertWarn( false, "TSForestCellBatch::_rebuildBatch: Batch too big... try reducing the forest cell size!" );
+      return;
+   }
+
+   // Fill this puppy!
+   ImposterState *vertPtr = mVB.lock();
+   Vector<ForestItem>::const_iterator item = mItems.begin();
+
+   const F32 radius = mDetail->getRadius();
+   ImposterState state;
+
+   for ( ; item != mItems.end(); item++ )
+   {
+      item->getWorldBox().getCenter( &state.center );
+      state.halfSize = radius * item->getScale();
+      state.alpha = 1.0f;
+      item->getTransform().getColumn( 2, &state.upVec );
+      item->getTransform().getColumn( 0, &state.rightVec );
+
+      *vertPtr = state;
+      vertPtr->corner = 0;
+      ++vertPtr;
+
+      *vertPtr = state;
+      vertPtr->corner = 1;
+      ++vertPtr;
+
+      *vertPtr = state;
+      vertPtr->corner = 2;
+      ++vertPtr;
+
+      *vertPtr = state;
+      vertPtr->corner = 2;
+      ++vertPtr;
+
+      *vertPtr = state;
+      vertPtr->corner = 3;
+      ++vertPtr;
+
+      *vertPtr = state;
+      vertPtr->corner = 0;
+      ++vertPtr;
+   }
+
+   mVB.unlock();
+}
+
+void TSForestCellBatch::_render( const SceneRenderState *state )
+{
+   if (  !mVB.isValid() || 
+         ( state->isShadowPass() && !TSLastDetail::smCanShadow ) )
+      return;
+
+   // Make sure we have a material to render with.
+   BaseMatInstance *mat = state->getOverrideMaterial( mDetail->getMatInstance() );
+   if ( mat == NULL )
+      return;
+
+   // We don't really render here... we submit it to
+   // the render manager which collects all the batches
+   // in the scene, sorts them by texture, sets up the
+   // shader, and then renders them all at once.
+
+   ImposterBatchRenderInst *inst = state->getRenderPass()->allocInst<ImposterBatchRenderInst>();
+   inst->mat = mat;
+   inst->vertBuff = &mVB;
+
+   // We sort by the imposter type first so that RIT_Imposter and 
+   // RIT_ImposterBatches do not get mixed together.
+   //
+   // We then sort by material.
+   //
+   inst->defaultKey = 0;
+   inst->defaultKey2 = mat->getStateHint();
+
+   state->getRenderPass()->addInst( inst );
+}