vector<Poly> Clipping::getOffset(const Poly &poly, double distance,
JoinType jtype, double miterdist)
{
CL::Polygons cpolys(1); cpolys[0]=getClipperPolygon(poly);
CL::Polygons offset = CLOffset(cpolys, CL_FACTOR*distance, CLType(jtype), miterdist);
return getPolys(offset, poly.getZ(), poly.getExtrusionFactor());
}
// have added Polyons by addPolygon(s)
vector<Poly> Clipping::subtract(CL::PolyFillType sft,
CL::PolyFillType cft)
{
CL::Polygons diff;
clpr.Execute(CL::ctDifference, diff, sft, cft);
return getPolys(diff, lastZ, lastExtrF);
}
vector<Poly> Clipping::Xor(CL::PolyFillType sft,
CL::PolyFillType cft)
{
CL::Polygons xored;
clpr.Execute(CL::ctXor, xored, sft, cft);
return getPolys(xored, lastZ, lastExtrF);
}
// have added Polyons by addPolygon(s)
vector<Poly> Clipping::intersect(CL::PolyFillType sft,
CL::PolyFillType cft)
{
CL::Polygons inter;
clpr.Execute(CL::ctIntersection, inter, sft, cft);
return getPolys(inter, lastZ, lastExtrF);
}
// have added Polyons by addPolygon(s)
vector<Poly> Clipping::unite(CL::PolyFillType sft,
CL::PolyFillType cft)
{
CL::Polygons united;
clpr.Execute(CL::ctUnion, united, sft, cft);
return getPolys(united, lastZ, lastExtrF);
}
vector<Poly> Clipping::subtractMerged(double dist,
CL::PolyFillType sft,
CL::PolyFillType cft)
{
CL::Paths diff;
clpr.Execute(CL::ctDifference, diff, sft, cft);
return getPolys(getMerged(diff, dist), lastZ, lastExtrF);
}
vector<Poly> Clipping::getPolys(const vector<ExPoly> &expolys)
{
vector<Poly> polys;
for (uint i = 0; i< expolys.size(); i++) {
vector<Poly> p = getPolys(expolys[i]);
polys.insert(polys.end(),p.begin(),p.end());
}
return polys;
}
// overlap a bit and unite to merge adjacent polys
vector<Poly> Clipping::getMerged(const vector<Poly> &polys, double overlap)
{
CL::Polygons cpolys = getClipperPolygons(polys);
CL::Polygons merged = getMerged(cpolys, CL_FACTOR*overlap);
double z=0, extrf = 1.;
if (polys.size()>0) {
z= polys.back().getZ();
extrf = polys.back().getExtrusionFactor();
}
return getPolys(merged, z, extrf);
}
vector<Poly> Clipping::getOffset(const vector<Poly> &polys, double distance,
JoinType jtype, double miterdist)
{
CL::Polygons cpolys = getClipperPolygons(polys);
CL::Polygons offset = CLOffset(cpolys, CL_FACTOR*distance, CLType(jtype), miterdist);
double z=0, extrf=1.;;
if (polys.size()>0) {
z = polys.back().getZ();
extrf = polys.back().getExtrusionFactor();
}
return getPolys(offset,z,extrf);
}
// first goes in then out to get capped corners
vector<Poly> Clipping::getShrinkedCapped(const vector<Poly> &polys, double distance,
JoinType jtype, double miterdist)
{
CL::Paths cpolys = getClipperPolygons(polys);
CL::Paths offset1 = CLOffset(cpolys, -2*CL_FACTOR*distance, CLType(jtype), 0);// CL::jtRound);
CL::Paths offset = CLOffset(offset1, 1*CL_FACTOR*distance, CLType(jtype), 0);
double z=0, extrf=1.;;
if (polys.size()>0) {
z= polys.back().getZ();
extrf = polys.back().getExtrusionFactor();
}
return getPolys(offset,z,extrf);
}
vector<Poly> Clipping::getOffset(const vector<ExPoly> &expolys, double distance,
JoinType jtype, double miterdist)
{
return getOffset(getPolys(expolys),distance,jtype,miterdist);
}
vector<Poly> Clipping::getOffset(const ExPoly &expoly, double distance,
JoinType jtype, double miterdist)
{
vector<Poly> polys = getPolys(expoly);
return getOffset(polys,distance,jtype,miterdist);
}
void Clipping::addPolys(const ExPoly &expoly, PolyType type)
{
vector<Poly> polys = getPolys(expoly);
addPolys(polys, type);
}
CL::Polygons Clipping::getClipperPolygons(const ExPoly &expoly)
{
return getClipperPolygons(getPolys(expoly));
}
void BaseShadowRenderImage::preRenderShadow(TSRenderContext & rc, float curTime)
{
if (!castShadow)
return;
// do visibility check for shadow
Point3F center;
m_mul(shape->getShape().fCenter,transform,¢er);
SphereF shadowSphere = SphereF(center,shape->getShape().fRadius);
int shadowVis = rc.getCamera()->testVisibility(shadowSphere);
if ( shadowVis==TS::ClipNoneVis )
{
shadowSettings.shadowDetail = -1;
return;
}
// shape detail to use for shadows
if (!shadowOwnDetail)
{
projSize = rc.getCamera()->transformProjectRadius( center, shape->getShape().fRadius );
float adjustedSize = shadowDetailScale * projSize;
shadowSettings.shadowDetail = shape->getShape().selectDetail( adjustedSize );
if (shadowSettings.shadowDetail==-1)
return;
}
// first pass at shadow details
setShadowDetailsA(rc);
// set shadow details may veto shadow
if (shadowSettings.shadowDetail==-1)
return;
// set light direction, but only if different than before
Point3F * pLight = &lightDirection;
Point3F tempDirection;
if (swingDown != 0.0f)
{
tempDirection = (lightDirection * (1.0f - swingDown)) + (Point3F(0, 0, -1) * swingDown);
tempDirection.normalize();
pLight = &tempDirection;
}
if (m_dot(*pLight,lastLight) < 0.999)
{
shadow.setLight( *pLight, shape);
lastLight = *pLight;
nextShadowUpdateTime = -1;
}
// set position of shadow
shadow.setPosition(transform.p);
if (shadowSettings.cacheProjection)
{
if (shadowSettings.recacheProjection)
{
shadow.calcSourceWindow(shape,transform);
getPolys();
shadow.cachePolys();
shadowSettings.recacheProjection = false;
}
}
else
{
shadow.calcSourceWindow(shape,transform);
getPolys();
Point3F cc = rc.getCamera()->getTCW().p;
Point3F camY = transform.p-cc;
camY.normalize();
shadow.getPlanes(cc,camY);
}
setShadowDetails(rc);
// set shadow details may veto shadow
if (shadowSettings.shadowDetail==-1)
return;
if (shadowSettings.shadowDetail < shadowSettings.hiShadowDetail)
shadowSettings.shadowDetail = shadowSettings.hiShadowDetail;
// adjust next update time...
nextShadowUpdateTime += shadowSettings.updateDelta - prevShadowUpdateDelta;
prevShadowUpdateDelta = shadowSettings.updateDelta;
// adjust bmp dim...
int newBmpDim = shadowSettings.bmpDim;
if (newBmpDim != prevBmpDim)
{
prevBmpDim = newBmpDim;
shadow.setBitmapSize(deviceManager.getGFXDeviceManager(),newBmpDim,rc.getSurface());
nextShadowUpdateTime = -1;
}
shadow.setAlphaLevel(alphaLevel);
// create the shadow bitmap if needed
if (curTime > nextShadowUpdateTime)
{
if (shadowSettings.useFloor)
{
SimContainerQuery query;
Box3F & box = query.box;
box.fMin = box.fMax = center;
box.fMin.z += shape->getShape().fRadius;
box.fMax.z -= shape->getShape().fRadius * 1.5f;
query.id = -1;
query.type = -1;
query.mask = shadowSettings.projectTerrainOnly ? SimTerrainObjectType : projectionMask;
SimCollisionInfo collision;
if (root->findLOS(query,&collision))
{
Point3F n,p;
m_mul(collision.surfaces[0].position,collision.surfaces.tWorld,&p);
m_mul(collision.surfaces[0].normal,(RMat3F&)collision.surfaces.tWorld,&n);
p -= transform.p;
Point3F lift = n;
lift *= shadowSettings.liftFloor;
p += lift;
shadow.setFloor(p,n);
}
else
shadow.clearFloor();
}
else
shadow.clearFloor();
shape->setDetailLevel(shadowSettings.shadowDetail);
shape->animate();
GFXPalette * pal = SimGame::get()->getWorld(SimGame::CLIENT)->getPalette();
AssertFatal(pal, "invalid palette");
// getShadowBitmap assumes calcSourceWindow already called...
// ...but that's ok because we called it above
shadow.getShadowBitmap(shape,pal,transform,shadowSettings.blurMethod);
nextShadowUpdateTime = curTime + shadowSettings.updateDelta;
}
AssertFatal(root,
"shadowRenderImage::preRenderShadow: cannot cast shadow before \'root\' container set");
// this'll keep track of how many shadows are out there
if (shadowNum < 0)
shadowNum=1; // first preRender this render cycle
else
shadowNum++;
}
