void FPortalSceneState::EndFrame(HWDrawInfo *di, FRenderState &state)
{
HWPortal * p;
if (gl_portalinfo)
{
Printf("%s%d portals, depth = %d\n%s{\n", indent.GetChars(), di->Portals.Size(), renderdepth, indent.GetChars());
indent += " ";
}
while (di->Portals.Pop(p) && p)
{
if (gl_portalinfo)
{
Printf("%sProcessing %s, depth = %d\n", indent.GetChars(), p->GetName(), renderdepth);
}
if (p->lines.Size() > 0)
{
RenderPortal(p, state, true, di);
}
delete p;
}
renderdepth--;
if (gl_portalinfo)
{
indent.Truncate(long(indent.Len()-2));
Printf("%s}\n", indent.GetChars());
if (indent.Len() == 0) gl_portalinfo = false;
}
}
void RenderPolyPlane::Render(PolyRenderThread *thread, const TriMatrix &worldToClip, const PolyClipPlane &clipPlane, const PolyTransferHeights &fakeflat, uint32_t stencilValue, bool ceiling, double skyHeight, std::vector<std::unique_ptr<PolyDrawSectorPortal>> §orPortals)
{
FSectorPortal *portal = fakeflat.FrontSector->ValidatePortal(ceiling ? sector_t::ceiling : sector_t::floor);
if (!portal || (portal->mFlags & PORTSF_INSKYBOX) == PORTSF_INSKYBOX) // Do not recurse into portals we already recursed into
{
RenderNormal(thread, worldToClip, clipPlane, fakeflat, stencilValue, ceiling, skyHeight);
}
else
{
RenderPortal(thread, worldToClip, clipPlane, fakeflat, stencilValue, ceiling, skyHeight, portal, sectorPortals);
}
}
//-----------------------------------------------------------------------------
//
// Renders one sky portal without a stencil.
// In more complex scenes using a stencil for skies can severely stall
// the GPU and there's rarely more than one sky visible at a time.
//
//-----------------------------------------------------------------------------
bool FPortalSceneState::RenderFirstSkyPortal(int recursion, HWDrawInfo *outer_di, FRenderState &state)
{
HWPortal * p;
HWPortal * best = nullptr;
unsigned bestindex = 0;
// Find the one with the highest amount of lines.
// Normally this is also the one that saves the largest amount
// of time by drawing it before the scene itself.
auto &portals = outer_di->Portals;
for (int i = portals.Size() - 1; i >= 0; --i)
{
p = portals[i];
if (p->lines.Size() > 0 && p->IsSky())
{
// Cannot clear the depth buffer inside a portal recursion
if (recursion && p->NeedDepthBuffer()) continue;
if (!best || p->lines.Size() > best->lines.Size())
{
best = p;
bestindex = i;
}
// If the portal area contains the current camera viewpoint, let's always use it because it's likely to give the largest area.
if (p->boundingBox.contains(outer_di->Viewpoint.Pos))
{
best = p;
bestindex = i;
break;
}
}
}
if (best)
{
portals.Delete(bestindex);
RenderPortal(best, state, false, outer_di);
delete best;
return true;
}
return false;
}
