// ***************************************************************************
void CIgLighterLib::lightIg(CInstanceLighter &instanceLighter,
const CInstanceGroup &igIn, CInstanceGroup &igOut, CInstanceLighter::CLightDesc &lightDesc,
CSurfaceLightingInfo &slInfo, const char *igName)
{
sint i;
// Setup.
//=======
// Init
instanceLighter.init();
// For interiors ig, disable Sun contrib according to ig.
lightDesc.DisableSunContribution= !igIn.getRealTimeSunContribution();
// Copy it to igOut, just to keep same setup data for in and out.
igOut.enableRealTimeSunContribution(!lightDesc.DisableSunContribution);
// Add obstacles.
std::vector<CInstanceLighter::CTriangle> obstacles;
// only if Shadowing On.
if(lightDesc.Shadow)
{
// Map of shape to load
std::map<string, IShape*> shapeMap;
// For all instances of igIn.
for(i=0; i<(sint)igIn.getNumInstance();i++)
{
// progress
instanceLighter.progress("Loading Shapes obstacles", float(i)/igIn.getNumInstance());
// Skip it?? IgLighterLib use the DontCastShadowForInterior flag. See doc of this flag
if(igIn.getInstance(i).DontCastShadow || igIn.getInstance(i).DontCastShadowForInterior)
continue;
// Get the instance shape name
string name= igIn.getShapeName(i);
bool shapeFound= true;
// Try to find the shape in the UseShapeMap.
std::map<string, IShape*>::const_iterator iteMap= lightDesc.UserShapeMap.find (name);
// If not found in userShape map, try to load it from the temp loaded ShapeBank.
if( iteMap == lightDesc.UserShapeMap.end() )
{
// Add a .shape at the end ?
if (name.find('.') == std::string::npos)
name += ".shape";
// Lookup the file
string nameLookup = CPath::lookup (name, false, false);
if (!nameLookup.empty())
name = nameLookup;
// Find the shape in the bank
iteMap= shapeMap.find (name);
if (iteMap==shapeMap.end())
{
// Input file
CIFile inputFile;
if (inputFile.open (name))
{
// Load it
CShapeStream stream;
stream.serial (inputFile);
// Get the pointer
iteMap=shapeMap.insert (std::map<string, IShape*>::value_type (name, stream.getShapePointer ())).first;
}
else
{
// Error
nlwarning ("WARNING can't load shape %s\n", name.c_str());
shapeFound= false;
}
}
}
if(shapeFound)
{
CMatrix matInst;
matInst.setPos(igIn.getInstancePos(i));
matInst.setRot(igIn.getInstanceRot(i));
matInst.scale(igIn.getInstanceScale(i));
// Add triangles of this shape
CInstanceLighter::addTriangles(*iteMap->second, matInst, obstacles, i);
}
}
// Clean Up shapes.
//-----------
std::map<string, IShape*>::iterator iteMap;
iteMap= shapeMap.begin();
while(iteMap!= shapeMap.end())
{
// delte shape
delete iteMap->second;
// delete entry in map
shapeMap.erase(iteMap);
// next
iteMap= shapeMap.begin();
}
}
// Add pointLights of the IG.
for(i=0; i<(sint)igIn.getPointLightList().size();i++)
{
instanceLighter.addStaticPointLight( igIn.getPointLightList()[i], igName );
}
// Setup a CIGSurfaceLightBuild if needed.
//=======
CIGSurfaceLightBuild *igSurfaceLightBuild= NULL;
CGlobalRetriever *globalRetriever= slInfo.GlobalRetriever;
CRetrieverBank *retrieverBank= slInfo.RetrieverBank;
float cellSurfaceLightSize= slInfo.CellSurfaceLightSize;
if(retrieverBank && globalRetriever)
{
igSurfaceLightBuild= new CIGSurfaceLightBuild;
igSurfaceLightBuild->CellSize= cellSurfaceLightSize;
// col Identifier.
string colIdent= slInfo.ColIdentifierPrefix + slInfo.IgFileName + slInfo.ColIdentifierSuffix;
// For any retreiverInstance with this identifier.
//----------------
uint numInstances= (uint)globalRetriever->getInstances().size();
for(uint instanceId=0; instanceId<numInstances; instanceId++)
{
const CRetrieverInstance &instance= globalRetriever->getInstance(instanceId);
// If this instance is an interior
if ( instance.getType() == CLocalRetriever::Interior )
{
uint localRetrieverId= instance.getRetrieverId();
const CLocalRetriever &localRetriever= retrieverBank->getRetriever(localRetrieverId);
// get the identifer of this localRetriever
string retIdent= localRetriever.getIdentifier();
// Match the ident??
if( retIdent.find(colIdent)!=string::npos )
{
// check CRetrieverLightGrid not already present
CIGSurfaceLightBuild::ItRetrieverGridMap itRgm;
itRgm= igSurfaceLightBuild->RetrieverGridMap.find(localRetrieverId);
if( itRgm != igSurfaceLightBuild->RetrieverGridMap.end() )
{
nlwarning ("ERROR Found 2 different collision retriever with same identifier: '%s'. The 2nd is discared\n", retIdent.c_str());
}
else
{
// Append CRetrieverLightGrid.
itRgm= igSurfaceLightBuild->RetrieverGridMap.insert(
make_pair(localRetrieverId, CIGSurfaceLightBuild::CRetrieverLightGrid() ) ).first;
CIGSurfaceLightBuild::CRetrieverLightGrid &rlg= itRgm->second;
// Resize Grids.
uint numSurfaces= (uint)localRetriever.getSurfaces().size();
rlg.Grids.resize( numSurfaces );
// Compute the bbox for all surfaces. (NB: local to the localRetriever).
vector<CAABBox> surfaceBBoxes;
localRetriever.buildInteriorSurfaceBBoxes(surfaceBBoxes);
// For each surface, compute it.
for(uint surfaceId=0; surfaceId<numSurfaces; surfaceId++)
{
// Progress.
char stmp[256];
sprintf(stmp, "Sample surfaces of %s", retIdent.c_str());
instanceLighter.progress(stmp, surfaceId / float(numSurfaces));
// Compute surface and size of the grid.
CIGSurfaceLightBuild::CSurface &surfDst= rlg.Grids[surfaceId];
// Snap Origin on cellSize
surfDst.Origin= surfaceBBoxes[surfaceId].getMin();
surfDst.Origin.x= floorf(surfDst.Origin.x/cellSurfaceLightSize) * cellSurfaceLightSize;
surfDst.Origin.y= floorf(surfDst.Origin.y/cellSurfaceLightSize) * cellSurfaceLightSize;
// Snap Width / Height on cellSize.
float sizex= surfaceBBoxes[surfaceId].getMax().x - surfDst.Origin.x;
float sizey= surfaceBBoxes[surfaceId].getMax().y - surfDst.Origin.y;
surfDst.Width= (uint)floorf(sizex/cellSurfaceLightSize) + 2;
surfDst.Height= (uint)floorf(sizey/cellSurfaceLightSize) + 2;
// Get Zcenter.
float zCenter= surfaceBBoxes[surfaceId].getCenter().z;
// Allocate elements.
surfDst.Cells.resize(surfDst.Width * surfDst.Height);
// For all elements
for(sint yCell=0; yCell<(sint)surfDst.Height; yCell++)
{
for(sint xCell=0; xCell<(sint)surfDst.Width; xCell++)
{
// compute pos of the cell.
ULocalPosition localPos;
localPos.Estimation.x= surfDst.Origin.x + xCell*cellSurfaceLightSize;
localPos.Estimation.y= surfDst.Origin.y + yCell*cellSurfaceLightSize;
localPos.Estimation.z= zCenter;
// snap the pos to the surface.
localPos.Surface= surfaceId;
bool snapped;
localRetriever.snapToInteriorGround(localPos, snapped);
// if snapped then this point is IN the surface.
CIGSurfaceLightBuild::CCellCorner &cell=
surfDst.Cells[yCell * surfDst.Width + xCell];
cell.InSurface= snapped;
// If ok, retrieve the global (ie world) position
if(snapped)
{
// build a valid globalPosition.
UGlobalPosition globalPos;
globalPos.InstanceId= instanceId;
globalPos.LocalPosition= localPos;
// retrieve from globalRetriever.
cell.CenterPos= globalRetriever->getGlobalPosition(globalPos);
// Add a delta to simulate entity center
cell.CenterPos.z+= slInfo.CellRaytraceDeltaZ;
// OverSample
if(lightDesc.OverSampling==0)
{
// No OverSample, just add CenterPos to the samples.
cell.NumOverSamples= 1;
cell.OverSamples[0]= cell.CenterPos;
}
else
{
// OverSample.
overSampleCell(cell, lightDesc.OverSampling, localRetriever,
*globalRetriever, instanceId, localPos, cellSurfaceLightSize,
slInfo.CellRaytraceDeltaZ);
// it is possible that no samples lies in surfaces (small surface).
// In this case, just copy CenterPos into samples.
if(cell.NumOverSamples==0)
{
cell.NumOverSamples= 1;
cell.OverSamples[0]= cell.CenterPos;
}
}
}
else
{
// For debug mesh only, get an approximate pos.
cell.CenterPos= localPos.Estimation + instance.getOrigin();
cell.CenterPos.z+= slInfo.CellRaytraceDeltaZ;
}
// Init cell defaults
cell.Dilated= false;
cell.SunContribution= 0;
}
}
}
}
}
}
}
}
// Run.
//=======
instanceLighter.light(igIn, igOut, lightDesc, obstacles, NULL, igSurfaceLightBuild);
// Output a debug mesh??
if(igSurfaceLightBuild && slInfo.BuildDebugSurfaceShape && !igSurfaceLightBuild->RetrieverGridMap.empty() )
{
// Do it for the sun and point lights.
for(uint i=0;i<2;i++)
{
// compute
CMesh::CMeshBuild meshBuild;
CMeshBase::CMeshBaseBuild meshBaseBuild;
CVector deltaPos= CVector::Null;
deltaPos.z= - slInfo.CellRaytraceDeltaZ + 0.1f;
// What kind of debug?
if( i==0 )
igSurfaceLightBuild->buildSunDebugMesh(meshBuild, meshBaseBuild, deltaPos);
else
igSurfaceLightBuild->buildPLDebugMesh(meshBuild, meshBaseBuild, deltaPos, igOut);
// build
CMesh mesh;
mesh.build(meshBaseBuild, meshBuild);
// Save.
CShapeStream shapeStream;
shapeStream.setShapePointer(&mesh);
COFile file;
if( i==0 )
file.open(slInfo.DebugSunName);
else
file.open(slInfo.DebugPLName);
shapeStream.serial(file);
}
}
// Clean.
//=======
if(igSurfaceLightBuild)
delete igSurfaceLightBuild;
}
int main(int argc, char **argv)
{
if (argc != 2)
{
printf("usage : %s file.ig\n", argv[0]);
return -1;
}
try
{
uint k;
CInstanceGroup ig;
CIFile inputStream;
if (!inputStream.open(string(argv[1])))
{
printf("unable to open %s\n", argv[1]);
return -1;
}
ig.serial(inputStream);
printf("Origine\n");
printf("---------\n");
CVector gpos = ig.getGlobalPos();
printf("global pos : x = %.1f, y = %.1f, z =%.1f\n", gpos.x, gpos.y, gpos.z);
printf("Instances\n");
printf("---------\n");
for(k = 0; k < ig._InstancesInfos.size(); ++k)
{
printf("instance %s : x = %.1f, y = %.1f, z = %.1f, sx = %.1f, sy = %.1f, sz = %.1f\n", ig._InstancesInfos[k].Name.c_str(), ig._InstancesInfos[k].Pos.x + gpos.x, ig._InstancesInfos[k].Pos.y + gpos.y, ig._InstancesInfos[k].Pos.z + gpos.z, ig._InstancesInfos[k].Scale.x, ig._InstancesInfos[k].Scale.y, ig._InstancesInfos[k].Scale.z);
}
printf("\n");
printf("Lights\n");
printf("---------\n");
for(k = 0; k < ig.getNumPointLights(); ++k)
{
const CPointLightNamed &pl = ig.getPointLightNamed(k);
printf("light group = %d, anim = \"%s\" x = %.1f, y = %.1f, z = %.1f\n", pl.LightGroup, pl.AnimatedLight.c_str(), pl.getPosition().x + gpos.x, pl.getPosition().y + gpos.y, pl.getPosition().z + gpos.z);
}
printf("---------\n");
printf("Realtime sun contribution = %s\n", ig.getRealTimeSunContribution() ? "on" : "off");
printf("---------\n");
// IGSurfaceLight info.
const CIGSurfaceLight::TRetrieverGridMap &rgm= ig.getIGSurfaceLight().getRetrieverGridMap();
printf("IGSurfaceLighting: CellSize: %f. NumGridRetriever: %u\n",
ig.getIGSurfaceLight().getCellSize(), (uint)rgm.size() );
uint rgmInst= 0;
uint totalCells= 0;
CIGSurfaceLight::TRetrieverGridMap::const_iterator it= rgm.begin();
for(;it!=rgm.end();it++)
{
for(uint i=0;i<it->second.Grids.size();i++)
{
printf("grid(%d, %d): %dx%d\n", rgmInst, i, it->second.Grids[i].Width, it->second.Grids[i].Height );
totalCells+= it->second.Grids[i].Cells.size();
}
rgmInst++;
}
printf("TotalCells: %d\n", totalCells);
}
catch (const std::exception &e)
{
printf("%s\n", e.what());
}
}
// ---------------------------------------------------------------------------
int main(int nNbArg, char**ppArgs)
{
if (!NLMISC::INelContext::isContextInitialised())
new CApplicationContext();
NL3D_BlockMemoryAssertOnPurge = false;
char sCurDir[MAX_PATH];
getcwd (sCurDir, MAX_PATH);
if (nNbArg != 2)
{
printf ("Use : ig_elevation configfile.cfg\n");
printf ("\nExample of config.cfg\n\n");
printf ("InputIGDir = \"ig_land_max\";\n");
printf ("OutputIGDir = \"ig_land_max_elev\";\n");
printf ("CellSize = 160.0;\n");
printf ("HeightMapFile1 = \"w:/database/landscape/ligo/jungle/big.tga\";\n");
printf ("ZFactor1 = 1.0;\n");
printf ("HeightMapFile2 = \"w:/database/landscape/ligo/jungle/noise.tga\";\n");
printf ("ZFactor2 = 0.5;\n");
printf ("LandFile = \"w:/matis.land\";\n");
return -1;
}
SExportOptions options;
if (!options.load(ppArgs[1]))
{
return -1;
}
// Get all ig files in the input directory and elevate to the z of the double heightmap
// Load the land
CZoneRegion *ZoneRegion = loadLand(options.LandFile);
CZoneLimits zl;
if (ZoneRegion)
{
zl._ZoneMinX = ZoneRegion->getMinX() < 0 ? 0 : ZoneRegion->getMinX();
zl._ZoneMaxX = ZoneRegion->getMaxX() > 255 ? 255 : ZoneRegion->getMaxX();
zl._ZoneMinY = ZoneRegion->getMinY() > 0 ? 0 : ZoneRegion->getMinY();
zl._ZoneMaxY = ZoneRegion->getMaxY() < -255 ? -255 : ZoneRegion->getMaxY();
}
else
{
nlwarning("A ligo .land file cannot be found");
zl._ZoneMinX = 0;
zl._ZoneMaxX = 255;
zl._ZoneMinY = 0;
zl._ZoneMaxY = 255;
}
// Load the 2 height maps
CBitmap *HeightMap1 = NULL;
if (!options.HeightMapFile1.empty())
{
HeightMap1 = new CBitmap;
try
{
CIFile inFile;
if (inFile.open(options.HeightMapFile1))
{
HeightMap1->load (inFile);
}
else
{
string sTmp = string("Couldn't not open ")+string(options.HeightMapFile1)
+string(" : heightmap 1 map ignored");
outString(sTmp);
delete HeightMap1;
HeightMap1 = NULL;
}
}
catch (const Exception &e)
{
string sTmp = string("Cant load height map : ") + options.HeightMapFile1 + " : " + e.what();
outString (sTmp);
delete HeightMap1;
HeightMap1 = NULL;
}
}
CBitmap *HeightMap2 = NULL;
if (!options.HeightMapFile2.empty())
{
HeightMap2 = new CBitmap;
try
{
CIFile inFile;
if (inFile.open(options.HeightMapFile2))
{
HeightMap2->load (inFile);
}
else
{
string sTmp = string("Couldn't not open ")+string(options.HeightMapFile2)
+string(" : heightmap 2 map ignored\n");
outString(sTmp);
delete HeightMap2;
HeightMap2 = NULL;
}
}
catch (const Exception &e)
{
string sTmp = string("Cant load height map : ") + options.HeightMapFile2 + " : " + e.what() + "\n";
outString (sTmp);
delete HeightMap2;
HeightMap1 = NULL;
}
}
// Get all files
vector<string> vAllFiles;
chdir (options.InputIGDir.c_str());
dir (".ig", vAllFiles, false);
chdir (sCurDir);
for (uint32 i = 0; i < vAllFiles.size(); ++i)
{
chdir (options.InputIGDir.c_str());
CInstanceGroup *pIG = LoadInstanceGroup (vAllFiles[i].c_str());
chdir (sCurDir);
if (pIG != NULL)
{
bool realTimeSunContribution = pIG->getRealTimeSunContribution();
// For all instances !!!
CVector vGlobalPos;
CInstanceGroup::TInstanceArray IA;
vector<CCluster> Clusters;
vector<CPortal> Portals;
vector<CPointLightNamed> PLN;
pIG->retrieve (vGlobalPos, IA, Clusters, Portals, PLN);
if (IA.empty() && PLN.empty() && Portals.empty() && Clusters.empty()) continue;
uint k;
// elevate instance
for(k = 0; k < IA.size(); ++k)
{
CVector instancePos = vGlobalPos + IA[k].Pos;
IA[k].Pos.z += getHeightMapZ(instancePos.x, instancePos.y, zl, options, HeightMap1, HeightMap2);
}
// lights
for(k = 0; k < PLN.size(); ++k)
{
CVector lightPos = vGlobalPos + PLN[k].getPosition();
PLN[k].setPosition( PLN[k].getPosition() + getHeightMapZ(lightPos.x, lightPos.y, zl, options, HeightMap1, HeightMap2) * CVector::K);
}
// portals
std::vector<CVector> portal;
for(k = 0; k < Portals.size(); ++k)
{
Portals[k].getPoly(portal);
if (portal.empty())
{
nlwarning("Empty portal found");
continue;
}
// compute mean position of the poly
CVector meanPos(0, 0, 0);
uint l;
for(l = 0; l < portal.size(); ++l)
meanPos += portal[l];
meanPos /= (float) portal.size();
meanPos += vGlobalPos;
float z = getHeightMapZ(meanPos.x, meanPos.y, zl, options, HeightMap1, HeightMap2);
for(l = 0; l < portal.size(); ++l)
{
portal[l].z += z;
}
Portals[k].setPoly(portal);
}
// clusters
std::vector<CPlane> volume;
CMatrix transMatrix;
for(k = 0; k < Clusters.size(); ++k)
{
CVector clusterPos = vGlobalPos + Clusters[k].getBBox().getCenter();
float z = getHeightMapZ(clusterPos.x, clusterPos.y, zl, options, HeightMap1, HeightMap2);
transMatrix.setPos(z * CVector::K);
Clusters[k].applyMatrix(transMatrix);
}
CInstanceGroup *pIGout = new CInstanceGroup;
pIGout->build (vGlobalPos, IA, Clusters, Portals, PLN);
pIGout->enableRealTimeSunContribution(realTimeSunContribution);
chdir (options.OutputIGDir.c_str());
SaveInstanceGroup (vAllFiles[i].c_str(), pIGout);
chdir (sCurDir);
delete pIG;
}
}
return 1;
}
