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- fixed view clipping for portal sectors.

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All lines within the portal must neither be added to the clipper nor checked for obstruction by other parts of the map.
This commit is contained in:
Christoph Oelckers 2021-04-06 19:25:40 +02:00
parent 5c2335bbeb
commit d823ae255e
5 changed files with 30 additions and 27 deletions
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21
source/core/rendering/scene/hw_bunchdrawer.cpp
View file

@ -91,7 +91,7 @@ void BunchDrawer::StartScene()
//
//==========================================================================
void BunchDrawer::StartBunch(int sectnum, int linenum, binangle startan, binangle endan)
void BunchDrawer::StartBunch(int sectnum, int linenum, binangle startan, binangle endan, bool portal)
{
FBunch* bunch = &Bunches[LastBunch = Bunches.Reserve(1)];
@ -99,6 +99,7 @@ void BunchDrawer::StartBunch(int sectnum, int linenum, binangle startan, binangl
bunch->startline = bunch->endline = linenum;
bunch->startangle = startan;
bunch->endangle = endan;
bunch->portal = portal;
}
//==========================================================================
@ -182,7 +183,7 @@ bool BunchDrawer::CheckClip(walltype* wal)
//
//==========================================================================
int BunchDrawer::ClipLine(int line)
int BunchDrawer::ClipLine(int line, bool portal)
{
auto wal = &wall[line];
@ -195,7 +196,7 @@ int BunchDrawer::ClipLine(int line)
return CL_Skip;
}
if (!clipper->SafeCheckRange(startAngle, endAngle))
if (!portal && !clipper->SafeCheckRange(startAngle, endAngle))
{
return CL_Skip;
}
@ -203,7 +204,7 @@ int BunchDrawer::ClipLine(int line)
if (wal->nextwall == -1 || (wal->cstat & CSTAT_WALL_1WAY) || CheckClip(wal))
{
// one-sided
clipper->SafeAddClipRange(startAngle, endAngle);
if (!portal) clipper->SafeAddClipRange(startAngle, endAngle);
return CL_Draw;
}
else
@ -225,7 +226,7 @@ void BunchDrawer::ProcessBunch(int bnch)
ClipWall.Clock();
for (int i = bunch->startline; i <= bunch->endline; i++)
{
int clipped = ClipLine(i);
int clipped = ClipLine(i, bunch->portal);
if (clipped & CL_Draw)
{
@ -250,7 +251,7 @@ void BunchDrawer::ProcessBunch(int bnch)
if (clipped & CL_Pass)
{
ClipWall.Unclock();
ProcessSector(wall[i].nextsector);
ProcessSector(wall[i].nextsector, false);
ClipWall.Clock();
}
}
@ -425,7 +426,7 @@ int BunchDrawer::FindClosestBunch()
//
//==========================================================================
void BunchDrawer::ProcessSector(int sectnum)
void BunchDrawer::ProcessSector(int sectnum, bool portal)
{
if (gotsector[sectnum]) return;
gotsector.Set(sectnum);
@ -503,7 +504,7 @@ void BunchDrawer::ProcessSector(int sectnum)
// situation where 2 bunches may overlap at both ends.
startangle = ang1;
StartBunch(sectnum, sect->wallptr + i, ang1, ang2);
StartBunch(sectnum, sect->wallptr + i, ang1, ang2, portal);
inbunch = true;
}
else
@ -520,11 +521,11 @@ void BunchDrawer::ProcessSector(int sectnum)
//
//==========================================================================
void BunchDrawer::RenderScene(const int* viewsectors, unsigned sectcount)
void BunchDrawer::RenderScene(const int* viewsectors, unsigned sectcount, bool portal)
{
Bsp.Clock();
for(unsigned i=0;i<sectcount;i++)
ProcessSector(viewsectors[i]);
ProcessSector(viewsectors[i], portal);
while (Bunches.Size() > 0)
{
int closest = FindClosestBunch();

9
source/core/rendering/scene/hw_bunchdrawer.h
View file

@ -11,6 +11,7 @@ struct FBunch
int sectnum;
int startline;
int endline;
bool portal;
binangle startangle; // in pseudo angles for the clipper
binangle endangle;
};
@ -38,19 +39,19 @@ private:
};
void StartScene();
void StartBunch(int sectnum, int linenum, binangle startan, binangle endan);
void StartBunch(int sectnum, int linenum, binangle startan, binangle endan, bool portal);
void AddLineToBunch(int line, binangle newan);
void DeleteBunch(int index);
bool CheckClip(walltype* wal);
int ClipLine(int line);
int ClipLine(int line, bool portal);
void ProcessBunch(int bnch);
int WallInFront(int wall1, int wall2);
int BunchInFront(FBunch* b1, FBunch* b2);
int FindClosestBunch();
void ProcessSector(int sectnum);
void ProcessSector(int sectnum, bool portal);
public:
void Init(HWDrawInfo* _di, Clipper* c, vec2_t& view);
void RenderScene(const int* viewsectors, unsigned sectcount);
void RenderScene(const int* viewsectors, unsigned sectcount, bool portal);
const FixedBitArray<MAXSECTORS>& GotSector() const { return gotsector; }
};

16
source/core/rendering/scene/hw_drawinfo.cpp
View file

@ -364,7 +364,7 @@ void HWDrawInfo::DispatchSprites()
//
//-----------------------------------------------------------------------------
void HWDrawInfo::CreateScene()
void HWDrawInfo::CreateScene(bool portal)
{
const auto& vp = Viewpoint;
@ -387,9 +387,9 @@ void HWDrawInfo::CreateScene()
vec2_t view = { int(vp.Pos.X * 16), int(vp.Pos.Y * -16) };
mDrawer.Init(this, mClipper, view);
if (vp.SectNums)
mDrawer.RenderScene(vp.SectNums, vp.SectCount);
mDrawer.RenderScene(vp.SectNums, vp.SectCount, portal);
else
mDrawer.RenderScene(&vp.SectCount, 1);
mDrawer.RenderScene(&vp.SectCount, 1, portal);
SetupSprite.Clock();
gi->processSprites(tsprite, spritesortcnt, view.x, view.y, vp.Pos.Z * -256, bamang(vp.RotAngle), vp.TicFrac * 65536);
@ -422,7 +422,7 @@ void HWDrawInfo::CreateScene()
mClipper->Clear();
mClipper->SafeAddClipRange(bamang(vp.RotAngle + a1), bamang(vp.RotAngle - a1));
mDrawer.Init(this, mClipper, view);
mDrawer.RenderScene(&drawsect, 1);
mDrawer.RenderScene(&drawsect, 1, false);
for (int i = 0; i < eff.geocnt; i++)
{
@ -453,7 +453,7 @@ void HWDrawInfo::CreateScene()
mClipper->Clear();
mClipper->SafeAddClipRange(bamang(vp.RotAngle + a1), bamang(vp.RotAngle - a1));
mDrawer.Init(this, mClipper, view);
mDrawer.RenderScene(&drawsect, 1);
mDrawer.RenderScene(&drawsect, 1, false);
for (int i = 0; i < eff.geocnt; i++)
{
@ -670,7 +670,7 @@ void HWDrawInfo::Set3DViewport(FRenderState &state)
//
//-----------------------------------------------------------------------------
void HWDrawInfo::DrawScene(int drawmode)
void HWDrawInfo::DrawScene(int drawmode, bool portal)
{
static int recursion = 0;
static int ssao_portals_available = 0;
@ -692,7 +692,7 @@ void HWDrawInfo::DrawScene(int drawmode)
ssao_portals_available--;
}
CreateScene();
CreateScene(portal);
auto& RenderState = *screen->RenderState();
RenderState.SetDepthMask(true);
@ -725,7 +725,7 @@ void HWDrawInfo::DrawScene(int drawmode)
void HWDrawInfo::ProcessScene(bool toscreen)
{
portalState.BeginScene();
DrawScene(toscreen ? DM_MAINVIEW : DM_OFFSCREEN);
DrawScene(toscreen ? DM_MAINVIEW : DM_OFFSCREEN, false);
if (toscreen && isBlood())
{
gotsector = mDrawer.GotSector(); // Blood needs this to implement some lighting effect hacks. Needs to be refactored to use better info.

4
source/core/rendering/scene/hw_drawinfo.h
View file

@ -158,8 +158,8 @@ public:
void ClearBuffers();
HWDrawInfo *EndDrawInfo();
void DrawScene(int drawmode);
void CreateScene();
void DrawScene(int drawmode, bool portal);
void CreateScene(bool portal);
void DispatchSprites();
void RenderScene(FRenderState &state);
void RenderTranslucent(FRenderState &state);

7
source/core/rendering/scene/hw_portal.cpp
View file

@ -400,9 +400,10 @@ void HWScenePortalBase::DrawContents(HWDrawInfo* di, FRenderState& state)
{
if (Setup(di, state, di->mClipper))
{
gi->EnterPortal(di->Viewpoint.CameraSprite, GetType());
di->DrawScene(DM_PORTAL);
gi->LeavePortal(di->Viewpoint.CameraSprite, GetType());
auto type = GetType();
gi->EnterPortal(di->Viewpoint.CameraSprite, type);
di->DrawScene(DM_PORTAL, type == PORTAL_SECTOR_CEILING);
gi->LeavePortal(di->Viewpoint.CameraSprite, type);
Shutdown(di, state);
}
else state.ClearScreen();