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Documentation                       Search   landscape_model.cpp Go to the documentation of this file. /* Copyright, 2000 Nevrax Ltd. * * This file is part of NEVRAX NEL. * NEVRAX NEL is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * NEVRAX NEL is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * You should have received a copy of the GNU General Public License * along with NEVRAX NEL; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. */ #include "std3d.h" #include <vector> #include "nel/misc/hierarchical_timer.h" #include "3d/landscape_model.h" #include "3d/landscape.h" #include "3d/cluster.h" #include "3d/scene.h" #include "3d/light_trav.h" using namespace std; using namespace NLMISC; #define NL3D_MEM_LANDSCAPE NL_ALLOC_CONTEXT( 3dLand ) namespace NL3D { // *************************************************************************** void CLandscapeModel::registerBasic() { CMOT::registerModel(LandscapeModelId, TransformId, CLandscapeModel::creator); CMOT::registerObs(ClipTravId, LandscapeModelId, CLandscapeClipObs::creator); CMOT::registerObs(RenderTravId, LandscapeModelId, CLandscapeRenderObs::creator); } // *************************************************************************** CLandscapeModel::CLandscapeModel() { Landscape.init(); _ActiveAdditive=false; _Additive=1.f; // The model is renderable CTransform::setIsRenderable(true); } // *************************************************************************** void CLandscapeModel::initModel() { CTransform::initModel(); // After creating the landscape (and so the VegetableManager in the ctor). // we must init correclty the VegetableManager. Landscape.createVegetableBlendLayersModels(safe_cast<CScene*>(_OwnerMot)); } // *************************************************************************** void CLandscapeClipObs::init() { CTransformClipObs::init(); // Enable the landscape to be clipped by the Cluster System. CClipTrav *clipTrav= (CClipTrav*)Trav; clipTrav->unlink(NULL, Model); clipTrav->link(clipTrav->RootCluster, Model); } // *************************************************************************** bool CLandscapeClipObs::clip(IBaseClipObs *caller) { H_AUTO( NL3D_Landscape_Clip ); CLandscapeModel *landModel= (CLandscapeModel*)Model; CClipTrav *clipTrav= (CClipTrav*)Trav; // Before Landscape clip, must setup Driver, for good VB allocation. landModel->Landscape.setDriver(clipTrav->RenderTrav->getDriver()); // Use the unClipped pyramid (not changed by cluster System). vector<CPlane> &pyramid= clipTrav->WorldFrustumPyramid; // We are sure that pyramid has normalized plane normals. landModel->Landscape.clip(clipTrav->CamPos, pyramid); // Yes, this is ugly, but the clip pass is finished in render(), for clipping TessBlocks. // This saves an other Landscape patch traversal, so this is faster... // Order them in order which clip faster (first horizontal, then vertical). landModel->CurrentPyramid[0]= pyramid[NL3D_CLIP_PLANE_LEFT]; landModel->CurrentPyramid[1]= pyramid[NL3D_CLIP_PLANE_RIGHT]; landModel->CurrentPyramid[2]= pyramid[NL3D_CLIP_PLANE_TOP]; landModel->CurrentPyramid[3]= pyramid[NL3D_CLIP_PLANE_BOTTOM]; nlassert(NL3D_TESSBLOCK_NUM_CLIP_PLANE==4); // Well, always visible.... return true; } // *************************************************************************** void CLandscapeRenderObs::traverse(IObs *caller) { NL3D_MEM_LANDSCAPE CLandscapeModel *landModel= (CLandscapeModel*)Model; CRenderTrav *trav= (CRenderTrav*)Trav; // Change the landscape cetner. All Geomorphed pos (in VertexBuffer only or during VertexProgram) // substract this position. landModel->Landscape.setPZBModelPosition(trav->CamPos); // setup the model matrix CMatrix m; m.identity(); // ZBuffer Precion: set the modelMatrix to the current landscape PZBModelPosition. // NB: don't use trav->CamPos directly because setPZBModelPosition() may modify the position m.setPos(landModel->Landscape.getPZBModelPosition()); trav->getDriver()->setupModelMatrix(m); // Scene Time/Lighting Mgt. CScene *scene= dynamic_cast<CScene*>(landModel->_OwnerMot); if(scene) { // For vegetable, set the animation Time. landModel->Landscape.setVegetableTime(scene->getCurrentTime()); // For vegetable updateLighting, set the system Time. landModel->Landscape.setVegetableUpdateLightingTime(scene->getCurrentSystemTime()); // updateLighting H_BEFORE( NL3D_Landscape_UpdateLighting ); landModel->Landscape.updateLighting(scene->getCurrentSystemTime()); H_AFTER( NL3D_Landscape_UpdateLighting ); // if SceneLighting enabled if(scene->isLightingSystemEnabled()) { H_AUTO( NL3D_Landscape_DynamicLighting ); // For vegetable, set the lighting landModel->Landscape.setupVegetableLighting(scene->getSunAmbient(), scene->getSunDiffuse(), scene->getSunDirection()); // Landscape dynamic lighting: get all pointLights from scene and light landscape with them. IBaseLightObs *lightObs= static_cast<IBaseLightObs*>(landModel->_LightObs); // current visible Dynamic light list are registered in LightTrav::LightingManager CLightTrav *lightTrav= (CLightTrav*)lightObs->Trav; // Get all dynamic light list, and light landscape with it. landModel->Landscape.computeDynamicLighting(lightTrav->LightingManager.getAllDynamicLightList()); } } // First, refine. H_BEFORE( NL3D_Landscape_Refine ); landModel->Landscape.refine(trav->CamPos); H_AFTER( NL3D_Landscape_Refine ); // then render. H_BEFORE( NL3D_Landscape_Render ); landModel->Landscape.render(trav->CamPos, trav->CamLook, landModel->CurrentPyramid, landModel->isAdditive ()); H_AFTER( NL3D_Landscape_Render ); } } // NL3D