- WIP

source/CMakeLists.txt

@@ -1284,6 +1284,7 @@ set (PCH_SOURCES
 	games/exhumed/all.cpp
 	games/blood/all.cpp
 	games/sw/all.cpp
+	
 )
 
 if( ${HAVE_VM_JIT} )

source/build/include/buildtypes.h

@@ -32,6 +32,20 @@ enum
     CSTAT_SECTOR_METHOD = 384
 };
 
+enum
+{
+    PORTAL_SECTOR_FLOOR = 1,
+    PORTAL_SECTOR_CEILING = 2,
+    PORTAL_SECTOR_FLOOR_REFLECT = 4,
+    PORTAL_SECTOR_CEILING_REFLECT = 8,
+};
+
+enum
+{
+    PORTAL_WALL_VIEW = 1,
+    PORTAL_WALL_MIRROR = 2,
+};
+
 //40 bytes
 struct sectortype
 {
@@ -53,6 +67,7 @@ struct sectortype
 
     uint8_t dirty;
     float ceilingxpan_, ceilingypan_, floorxpan_, floorypan_;
+    uint8_t portalflags;
 
     int ceilingxpan() const { return int(ceilingxpan_); }
     int ceilingypan() const { return int(ceilingypan_); }
@@ -104,6 +119,7 @@ struct walltype
     int16_t extra;
     float xpan_, ypan_;
     angle_t clipangle;
+    uint8_t portalflags;
 
     int xpan() const { return int(xpan_); }
     int ypan() const { return int(ypan_); }

source/build/src/engine.cpp

@@ -849,71 +849,42 @@ CVAR(Bool, testnewinterface, true, 0)
 int32_t renderDrawRoomsQ16(int32_t daposx, int32_t daposy, int32_t daposz,
                            fixed_t daang, fixed_t dahoriz, int16_t dacursectnum)
 {
-    for (int i = 0; i < numwalls; ++i)
+    checkRotatedWalls();
-    {
-        if (wall[i].cstat & CSTAT_WALL_ROTATE_90)
-        {
-            auto& w = wall[i];
-            auto& tile = RotTile(w.picnum + animateoffs(w.picnum, 16384));
-
-            if (tile.newtile == -1 && tile.owner == -1)
-            {
-                auto owner = w.picnum + animateoffs(w.picnum, 16384);
-
-                tile.newtile = TileFiles.tileCreateRotated(owner);
-                assert(tile.newtile != -1);
-
-                RotTile(tile.newtile).owner = w.picnum + animateoffs(w.picnum, 16384);
-
-            }
-        }
-    }
-
-
-    int32_t i;
 
     if (gl_fogmode == 1) gl_fogmode = 2;	// only radial fog works with Build's screwed up coordinate system.
 
-    set_globalpos(daposx, daposy, daposz);
-    set_globalang(daang);
-
-    global100horiz = dahoriz;
-
-    // xdimenscale is Scale(xdimen,yxaspect,320);
-    // normalization by viewingrange so that center-of-aim doesn't depend on it
-    qglobalhoriz = MulScale(dahoriz, DivScale(xdimenscale, viewingrange, 16), 16)+IntToFixed(ydimen>>1);
-
-    globalcursectnum = dacursectnum;
-
-    memset(gotsector, 0, sizeof(gotsector));
-
-    i = xdimen-1;
-
     // Update starting sector number (common to classic and Polymost).
     // ADJUST_GLOBALCURSECTNUM.
-    if (globalcursectnum >= MAXSECTORS)
+    if (dacursectnum >= MAXSECTORS)
-        globalcursectnum -= MAXSECTORS;
+        dacursectnum -= MAXSECTORS;
     else
     {
-        i = globalcursectnum;
+        int i = dacursectnum;
-        updatesector(globalposx,globalposy,&globalcursectnum);
+        updatesector(daposx, daposy, &dacursectnum);
-        if (globalcursectnum < 0) globalcursectnum = i;
+        if (dacursectnum < 0) dacursectnum = i;
 
         // PK 20110123: I'm not sure what the line above is supposed to do, but 'i'
         //              *can* be negative, so let's just quit here in that case...
-        if (globalcursectnum<0)
+        if (dacursectnum < 0)
             return 0;
     }
 
     if (!testnewrenderer)
     {
+        set_globalpos(daposx, daposy, daposz);
+        set_globalang(daang);
+
+        global100horiz = dahoriz;
+
+        memset(gotsector, 0, sizeof(gotsector));
+        qglobalhoriz = MulScale(dahoriz, DivScale(xdimenscale, viewingrange, 16), 16) + IntToFixed(ydimen >> 1);
+        globalcursectnum = dacursectnum;
         Polymost::polymost_drawrooms();
     }
     else
     {
         vec3_t pos = { daposx, daposy, daposz };
-        //if (!testnewinterface) render_drawrooms_(pos, globalcursectnum, daang, dahoriz, rollang, r_fov, false, false);
+        render_drawrooms(nullptr, pos, dacursectnum, daang, dahoriz, rollang, 0);
-        /*else*/ render_drawrooms(pos, globalcursectnum, daang, dahoriz, rollang, false, false);
     }
 
     return inpreparemirror;

source/build/src/polymost.cpp

@@ -2477,7 +2477,7 @@ void polymost_prepareMirror(int32_t dax, int32_t day, int32_t daz, fixed_t daang
     gvrcorrection = viewingrange*(1.f/65536.f);
     //if (glprojectionhacks == 2)
     {
-        // calculates the extend of the zenith glitch
+        // calculates the extent of the zenith glitch
         float verticalfovtan = (fviewingrange * (windowxy2.y-windowxy1.y) * 5.f) / ((float)yxaspect * (windowxy2.x-windowxy1.x) * 4.f);
         float verticalfov = atanf(verticalfovtan) * (2.f / pi::pi());
         static constexpr float const maxhorizangle = 0.6361136f; // horiz of 199 in degrees

source/core/gamefuncs.cpp

@@ -260,6 +260,37 @@ void GetFlatSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out)
 }
 
 
+//==========================================================================
+//
+// Check if some walls are set to be rotated textures.
+// Ideally this should just have been done with texture rotation,
+// but the effects on the render code would be too severe due to the alignment mess.
+//
+//==========================================================================
+
+void checkRotatedWalls()
+{
+	for (int i = 0; i < numwalls; ++i)
+	{
+		if (wall[i].cstat & CSTAT_WALL_ROTATE_90)
+		{
+			auto& w = wall[i];
+			auto& tile = RotTile(w.picnum + animateoffs(w.picnum, 16384));
+
+			if (tile.newtile == -1 && tile.owner == -1)
+			{
+				auto owner = w.picnum + animateoffs(w.picnum, 16384);
+
+				tile.newtile = TileFiles.tileCreateRotated(owner);
+				assert(tile.newtile != -1);
+
+				RotTile(tile.newtile).owner = w.picnum + animateoffs(w.picnum, 16384);
+
+			}
+		}
+	}
+}
+
 //==========================================================================
 //
 // vector serializers

source/core/gamefuncs.h

@@ -12,6 +12,7 @@ void PlanesAtPoint(const sectortype* sec, float dax, float day, float* ceilz, fl
 void setWallSectors();
 void GetWallSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out);
 void GetFlatSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out);
+void checkRotatedWalls();
 
 // y is negated so that the orientation is the same as in GZDoom, in order to use its utilities.
 // The render code should NOT use Build coordinates for anything!

source/core/gamestruct.h

@@ -101,6 +101,7 @@ struct GameInterface
 	virtual int chaseCamX(binangle ang) { return 0; }
 	virtual int chaseCamY(binangle ang) { return 0; }
 	virtual int chaseCamZ(fixedhoriz horiz) { return 0; }
+	virtual void processSprites(int viewx, int viewy, int viewz, binangle viewang, double smoothRatio) {}
 
 	virtual FString statFPS()
 	{

source/core/maploader.cpp

@@ -43,6 +43,7 @@
 #include "gamecontrol.h"
 #include "gamefuncs.h"
 #include "sectorgeometry.h"
+#include "render.h"
 
 
 static void ReadSectorV7(FileReader& fr, sectortype& sect)

source/core/rendering/hw_entrypoint.cpp

@@ -31,16 +31,10 @@
 //#include "a_dynlight.h"
 #include "v_video.h"
 #include "m_png.h"
-//#include "doomstat.h"
-//#include "r_data/r_interpolate.h"
-//#include "r_utility.h"
-//#include "d_player.h"
 #include "i_time.h"
 #include "hw_dynlightdata.h"
 #include "hw_clock.h"
 #include "flatvertices.h"
-//#include "v_palette.h"
-//#include "d_main.h"
 
 #include "hw_renderstate.h"
 #include "hw_lightbuffer.h"
@@ -49,12 +43,12 @@
 #include "hw_clipper.h"
 //#include "hwrenderer/scene/hw_portal.h"
 #include "hw_vrmodes.h"
-//#include "g_levellocals.h"
 
 #include "hw_drawstructs.h"
 #include "hw_drawlist.h"
 #include "hw_drawinfo.h"
 #include "gamecvars.h"
+#include "render.h"
 
 EXTERN_CVAR(Bool, cl_capfps)
 bool NoInterpolateView;
@@ -178,9 +172,10 @@ void RenderViewpoint(FRenderViewpoint& mainvp, IntRect* bounds, float fov, float
 //
 //===========================================================================
 
-FRenderViewpoint SetupView(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang)
+FRenderViewpoint SetupView(spritetype* cam, const vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang)
 {
 	FRenderViewpoint r_viewpoint{};
+	r_viewpoint.CameraSprite = cam;
 	r_viewpoint.SectNum = sectnum;
 	r_viewpoint.Pos = { position.x / 16.f, position.y / -16.f, position.z / -256.f };
 	r_viewpoint.HWAngles.Yaw = -90.f + q16ang(q16angle).asdeg();
@@ -269,13 +264,25 @@ static void CheckTimer(FRenderState &state, uint64_t ShaderStartTime)
 }
 
 
-void render_drawrooms(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, bool mirror, bool planemirror)
+void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, int flags)
 {
+	checkRotatedWalls();
+
+	if (gl_fogmode == 1) gl_fogmode = 2;	// still needed?
+
+	if (flags & RSF_UPDATESECTOR)
+	{
+		int16_t sect = sectnum;
+		updatesector(position.x, position.y, &sect);
+		if (sect >= 0) sectnum = sect;
+		if (sectnum < 0) return;
+	}
+
 	auto RenderState = screen->RenderState();
 	RenderState->SetVertexBuffer(screen->mVertexData);
 	screen->mVertexData->Reset();
 
-	FRenderViewpoint r_viewpoint = SetupView(position, sectnum, q16angle, q16horizon, rollang);
+	FRenderViewpoint r_viewpoint = SetupView(playersprite, position, sectnum, q16angle, q16horizon, rollang);
 	iter_dlightf = iter_dlight = draw_dlight = draw_dlightf = 0;
 
 	checkBenchActive();
@@ -326,6 +333,6 @@ void render_drawrooms(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q
 
 	screen->ImageTransitionScene(true); // Only relevant for Vulkan.
 
-	RenderViewpoint(r_viewpoint, NULL, r_viewpoint.FieldOfView.Degrees, ratio, fovratio, true, true);
+	RenderViewpoint(r_viewpoint, nullptr, r_viewpoint.FieldOfView.Degrees, ratio, fovratio, flags & RSF_MIRROR, flags & RSF_PLANEMIRROR);
 	All.Unclock();
 }

source/core/rendering/render.h

@@ -1,4 +1,11 @@
 #pragma once
 #include "build.h"
 
-void render_drawrooms(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, bool mirror, bool planemirror);
+void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, int flags);
+
+enum ERenderSceneFlags
+{
+	RSF_MIRROR = 1,
+	RSF_PLANEMIRROR = 2,
+	RSF_UPDATESECTOR = 4,
+};

source/core/rendering/scene/hw_drawinfo.h

@@ -35,6 +35,7 @@ class FRenderState;
 
 struct FRenderViewpoint
 {
+	spritetype* CameraSprite;
 	DVector3 Pos;
 	FRotator HWAngles;
 	FAngle FieldOfView;

source/core/savegamehelp.cpp

@@ -554,6 +554,7 @@ FSerializer &Serialize(FSerializer &arc, const char *key, sectortype &c, sectort
 			("lotag", c.lotag, def->lotag)
 			("hitag", c.hitag, def->hitag)
 			("extra", c.extra, def->extra)
+			("portalflags", c.portalflags, def->portalflags)
 			.EndObject();
 	}
 	return arc;
@@ -580,6 +581,7 @@ FSerializer &Serialize(FSerializer &arc, const char *key, walltype &c, walltype
 			("lotag", c.lotag, def->lotag)
 			("hitag", c.hitag, def->hitag)
 			("extra", c.extra, def->extra)
+			("portalflags", c.portalflags, def->portalflags)
 			.EndObject();
 	}
 	return arc;

source/games/blood/all.cpp

@@ -66,5 +66,9 @@
 #include "src/view.cpp"
 #include "src/warp.cpp"
 #include "src/weapon.cpp"
+
+#include "src/_polymost.cpp"
+
 // This includes the VM so it is last
 #include "src/d_menu.cpp"
+

source/games/blood/src/_polymost.cpp

@@ -0,0 +1,336 @@
+
+BEGIN_BLD_NS
+
+
+// leftover bits needed to keep Polymost running through the transition.
+// This is mainly the game side part of the portal renderer.
+
+void collectTSpritesForPortal(int x, int y, int i, int interpolation)
+{
+    int nSector = mirror[i].link;
+    int nSector2 = mirror[i].wallnum;
+    int nSprite;
+    SectIterator it(nSector);
+    while ((nSprite = it.NextIndex()) >= 0)
+    {
+        spritetype* pSprite = &sprite[nSprite];
+        if (pSprite == gView->pSprite)
+            continue;
+        int top, bottom;
+        GetSpriteExtents(pSprite, &top, &bottom);
+        int zCeil, zFloor;
+        getzsofslope(nSector, pSprite->x, pSprite->y, &zCeil, &zFloor);
+        if (pSprite->statnum == kStatDude && (top < zCeil || bottom > zFloor))
+        {
+            int j = i;
+            if (mirror[i].type == 2)
+                j++;
+            else
+                j--;
+            int dx = mirror[j].dx;
+            int dy = mirror[j].dy;
+            int dz = mirror[j].dz;
+            tspritetype* pTSprite = &tsprite[spritesortcnt++];
+            *pTSprite = {};
+            pTSprite->type = pSprite->type;
+            pTSprite->index = pSprite->index;
+            pTSprite->sectnum = nSector2;
+            pTSprite->x = pSprite->x + dx;
+            pTSprite->y = pSprite->y + dy;
+            pTSprite->z = pSprite->z + dz;
+            pTSprite->ang = pSprite->ang;
+            pTSprite->picnum = pSprite->picnum;
+            pTSprite->shade = pSprite->shade;
+            pTSprite->pal = pSprite->pal;
+            pTSprite->xrepeat = pSprite->xrepeat;
+            pTSprite->yrepeat = pSprite->yrepeat;
+            pTSprite->xoffset = pSprite->xoffset;
+            pTSprite->yoffset = pSprite->yoffset;
+            pTSprite->cstat = pSprite->cstat;
+            pTSprite->statnum = kStatDecoration;
+            pTSprite->owner = pSprite->index;
+            pTSprite->extra = pSprite->extra;
+            pTSprite->flags = pSprite->hitag | 0x200;
+            pTSprite->x = dx + interpolate(pSprite->ox, pSprite->x, interpolation);
+            pTSprite->y = dy + interpolate(pSprite->oy, pSprite->y, interpolation);
+            pTSprite->z = dz + interpolate(pSprite->oz, pSprite->z, interpolation);
+            pTSprite->ang = pSprite->interpolatedang(interpolation);
+
+            int nAnim = 0;
+            switch (picanm[pTSprite->picnum].extra & 7)
+            {
+            case 1:
+            {
+                int dX = x - pTSprite->x;
+                int dY = y - pTSprite->y;
+                RotateVector(&dX, &dY, 128 - pTSprite->ang);
+                nAnim = GetOctant(dX, dY);
+                if (nAnim <= 4)
+                {
+                    pTSprite->cstat &= ~4;
+                }
+                else
+                {
+                    nAnim = 8 - nAnim;
+                    pTSprite->cstat |= 4;
+                }
+                break;
+            }
+            case 2:
+            {
+                int dX = x - pTSprite->x;
+                int dY = y - pTSprite->y;
+                RotateVector(&dX, &dY, 128 - pTSprite->ang);
+                nAnim = GetOctant(dX, dY);
+                break;
+            }
+            }
+            while (nAnim > 0)
+            {
+                pTSprite->picnum += picanm[pTSprite->picnum].num + 1;
+                nAnim--;
+            }
+
+            spritesortcnt++;
+        }
+    }
+
+}
+
+void processSpritesOnOtherSideOfPortal(int x, int y, int interpolation)
+{
+    if (spritesortcnt == 0) return;
+    int nViewSprites = spritesortcnt-1;
+    for (int nTSprite = nViewSprites; nTSprite >= 0; nTSprite--)
+    {
+        tspritetype *pTSprite = &tsprite[nTSprite];
+        pTSprite->xrepeat = pTSprite->yrepeat = 0;
+    }
+    for (int i = mirrorcnt-1; i >= 0; i--)
+    {
+        int nTile = 4080+i;
+        if (TestBitString(gotpic, nTile))
+        {
+            if (mirror[i].type == 1 || mirror[i].type == 2)
+            {
+                collectTSpritesForPortal(x, y, i, interpolation);
+            }
+        }
+    }
+}
+
+
+void render3DViewPolymost(int nSectnum, int cX, int cY, int cZ, binangle cA, fixedhoriz cH)
+{
+    int yxAspect = yxaspect;
+    int viewingRange = viewingrange;
+    videoSetCorrectedAspect();
+
+    int v1 = xs_CRoundToInt(double(viewingrange) * tan(r_fov * (pi::pi() / 360.)));
+
+    renderSetAspect(v1, yxaspect);
+
+
+    int ceilingZ, floorZ;
+    getzsofslope(nSectnum, cX, cY, &ceilingZ, &floorZ);
+    if (cZ >= floorZ)
+    {
+        cZ = floorZ - (gUpperLink[nSectnum] >= 0 ? 0 : (8 << 8));
+    }
+    if (cZ <= ceilingZ)
+    {
+        cZ = ceilingZ + (gLowerLink[nSectnum] >= 0 ? 0 : (8 << 8));
+    }
+    cH = q16horiz(ClipRange(cH.asq16(), gi->playerHorizMin(), gi->playerHorizMax()));
+RORHACK:
+    int ror_status[16];
+    for (int i = 0; i < 16; i++)
+        ror_status[i] = TestBitString(gotpic, 4080 + i);
+    fixed_t deliriumPitchI = interpolate(IntToFixed(deliriumPitchO), IntToFixed(deliriumPitch), gInterpolate);
+    DrawMirrors(cX, cY, cZ, cA.asq16(), cH.asq16() + deliriumPitchI, gInterpolate, gViewIndex);
+    int bakCstat = gView->pSprite->cstat;
+    if (gViewPos == 0)
+    {
+        gView->pSprite->cstat |= 32768;
+    }
+    else
+    {
+        gView->pSprite->cstat |= 514;
+    }
+
+    renderDrawRoomsQ16(cX, cY, cZ, cA.asq16(), cH.asq16() + deliriumPitchI, nSectnum);
+    viewProcessSprites(cX, cY, cZ, cA.asbuild(), gInterpolate);
+    bool do_ror_hack = false;
+    for (int i = 0; i < 16; i++)
+        if (ror_status[i] != TestBitString(gotpic, 4080 + i))
+            do_ror_hack = true;
+    if (do_ror_hack)
+    {
+        gView->pSprite->cstat = bakCstat;
+        spritesortcnt = 0;
+        goto RORHACK;
+    }
+    setPortalFlags(1);
+    int nSpriteSortCnt = spritesortcnt;
+    renderDrawMasks();
+    spritesortcnt = nSpriteSortCnt;
+    setPortalFlags(0);
+    processSpritesOnOtherSideOfPortal(cX, cY, gInterpolate);
+    renderDrawMasks();
+    gView->pSprite->cstat = bakCstat;
+
+}
+
+// hack the portal planes with the sky flag for rendering. Only Polymost needs this hack.
+void setPortalFlags(char mode)
+{
+    for (int i = mirrorcnt - 1; i >= 0; i--)
+    {
+        int nTile = 4080 + i;
+        if (TestBitString(gotpic, nTile))
+        {
+            switch (mirror[i].type)
+            {
+            case 1:
+                if (mode)
+                    sector[mirror[i].wallnum].ceilingstat |= 1;
+                else
+                    sector[mirror[i].wallnum].ceilingstat &= ~1;
+                break;
+            case 2:
+                if (mode)
+                    sector[mirror[i].wallnum].floorstat |= 1;
+                else
+                    sector[mirror[i].wallnum].floorstat &= ~1;
+                break;
+            }
+        }
+    }
+}
+
+
+void DrawMirrors(int x, int y, int z, fixed_t a, fixed_t horiz, int smooth, int viewPlayer)
+{
+    for (int i = mirrorcnt - 1; i >= 0; i--)
+    {
+        int nTile = 4080 + i;
+        if (TestBitString(gotpic, nTile))
+        {
+            ClearBitString(gotpic, nTile);
+            switch (mirror[i].type)
+            {
+            case 0:
+            {
+                int nWall = mirror[i].link;
+                int nSector = sectorofwall(nWall);
+                walltype* pWall = &wall[nWall];
+                int nNextWall = pWall->nextwall;
+                int nNextSector = pWall->nextsector;
+                pWall->nextwall = mirrorwall[0];
+                pWall->nextsector = mirrorsector;
+                wall[mirrorwall[0]].nextwall = nWall;
+                wall[mirrorwall[0]].nextsector = nSector;
+                wall[mirrorwall[0]].x = wall[pWall->point2].x;
+                wall[mirrorwall[0]].y = wall[pWall->point2].y;
+                wall[mirrorwall[1]].x = pWall->x;
+                wall[mirrorwall[1]].y = pWall->y;
+                wall[mirrorwall[2]].x = wall[mirrorwall[1]].x + (wall[mirrorwall[1]].x - wall[mirrorwall[0]].x) * 16;
+                wall[mirrorwall[2]].y = wall[mirrorwall[1]].y + (wall[mirrorwall[1]].y - wall[mirrorwall[0]].y) * 16;
+                wall[mirrorwall[3]].x = wall[mirrorwall[0]].x + (wall[mirrorwall[0]].x - wall[mirrorwall[1]].x) * 16;
+                wall[mirrorwall[3]].y = wall[mirrorwall[0]].y + (wall[mirrorwall[0]].y - wall[mirrorwall[1]].y) * 16;
+                sector[mirrorsector].floorz = sector[nSector].floorz;
+                sector[mirrorsector].ceilingz = sector[nSector].ceilingz;
+                int cx, cy, ca;
+                if (GetWallType(nWall) == kWallStack)
+                {
+                    cx = x - (wall[pWall->hitag].x - wall[pWall->point2].x);
+                    cy = y - (wall[pWall->hitag].y - wall[pWall->point2].y);
+                    ca = a;
+                }
+                else
+                {
+                    renderPrepareMirror(x, y, z, a, horiz, nWall, &cx, &cy, &ca);
+                }
+                int32_t didmirror = renderDrawRoomsQ16(cx, cy, z, ca, horiz, mirrorsector | MAXSECTORS);
+                viewProcessSprites(cx, cy, z, FixedToInt(ca), smooth);
+                renderDrawMasks();
+                if (GetWallType(nWall) != kWallStack)
+                    renderCompleteMirror();
+                if (wall[nWall].pal != 0 || wall[nWall].shade != 0)
+                    TranslateMirrorColors(wall[nWall].shade, wall[nWall].pal);
+                pWall->nextwall = nNextWall;
+                pWall->nextsector = nNextSector;
+                return;
+            }
+            case 1:
+            {
+                r_rorphase = 1;
+                int nSector = mirror[i].link;
+                int bakCstat;
+                if (viewPlayer >= 0)
+                {
+                    bakCstat = gPlayer[viewPlayer].pSprite->cstat;
+                    if (gViewPos == 0)
+                    {
+                        gPlayer[viewPlayer].pSprite->cstat |= 32768;
+                    }
+                    else
+                    {
+                        gPlayer[viewPlayer].pSprite->cstat |= 514;
+                    }
+                }
+                renderDrawRoomsQ16(x + mirror[i].dx, y + mirror[i].dy, z + mirror[i].dz, a, horiz, nSector | MAXSECTORS);
+                viewProcessSprites(x + mirror[i].dx, y + mirror[i].dy, z + mirror[i].dz, FixedToInt(a), smooth);
+                short fstat = sector[nSector].floorstat;
+                sector[nSector].floorstat |= 1;
+                renderDrawMasks();
+                sector[nSector].floorstat = fstat;
+                for (int i = 0; i < 16; i++)
+                    ClearBitString(gotpic, 4080 + i);
+                if (viewPlayer >= 0)
+                {
+                    gPlayer[viewPlayer].pSprite->cstat = bakCstat;
+                }
+                r_rorphase = 0;
+                return;
+            }
+            case 2:
+            {
+                r_rorphase = 1;
+                int nSector = mirror[i].link;
+                int bakCstat;
+                if (viewPlayer >= 0)
+                {
+                    bakCstat = gPlayer[viewPlayer].pSprite->cstat;
+                    if (gViewPos == 0)
+                    {
+                        gPlayer[viewPlayer].pSprite->cstat |= 32768;
+                    }
+                    else
+                    {
+                        gPlayer[viewPlayer].pSprite->cstat |= 514;
+                    }
+                }
+                renderDrawRoomsQ16(x + mirror[i].dx, y + mirror[i].dy, z + mirror[i].dz, a, horiz, nSector | MAXSECTORS);
+                viewProcessSprites(x + mirror[i].dx, y + mirror[i].dy, z + mirror[i].dz, FixedToInt(a), smooth);
+                short cstat = sector[nSector].ceilingstat;
+                sector[nSector].ceilingstat |= 1;
+                renderDrawMasks();
+                sector[nSector].ceilingstat = cstat;
+                for (int i = 0; i < 16; i++)
+                    ClearBitString(gotpic, 4080 + i);
+                if (viewPlayer >= 0)
+                {
+                    gPlayer[viewPlayer].pSprite->cstat = bakCstat;
+                }
+                r_rorphase = 0;
+                return;
+            }
+            }
+        }
+    }
+}
+
+
+
+END_BLD_NS

source/games/blood/src/animatesprite.cpp

@@ -887,4 +887,9 @@ void viewProcessSprites(int32_t cX, int32_t cY, int32_t cZ, int32_t cA, int32_t
 }
 
 
+void GameInterface::processSprites(int viewx, int viewy, int viewz, binangle viewang, double smoothRatio)
+{
+    viewProcessSprites(viewx, viewy, viewz, viewang.asbuild(), int(smoothRatio));
+}
+
 END_BLD_NS

source/games/blood/src/blood.h

@@ -35,7 +35,6 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "ai.h"
 #include "aistate.h"
 #include "aiunicult.h"
-#include "blood.h"
 #include "callback.h"
 #include "db.h"
 #include "endgame.h"
@@ -83,6 +82,20 @@ void ProcessFrame(void);
 void ScanINIFiles(void);
 void EndLevel();
 
+struct MIRROR
+{
+	int type;
+	int link;
+	int dx;
+	int dy;
+	int dz;
+	int wallnum;
+};
+
+extern MIRROR mirror[16];
+extern int mirrorcnt, mirrorsector, mirrorwall[4];
+
+
 inline bool DemoRecordStatus(void)
 {
     return false;
@@ -131,9 +144,10 @@ struct GameInterface : ::GameInterface
 	void ToggleThirdPerson() override;
 	void SwitchCoopView() override;
 	void ToggleShowWeapon() override;
-	int chaseCamX(binangle ang) { return MulScale(-Cos(ang.asbuild()), 1280, 30); }
+	int chaseCamX(binangle ang) override { return MulScale(-Cos(ang.asbuild()), 1280, 30); }
-	int chaseCamY(binangle ang) { return MulScale(-Sin(ang.asbuild()), 1280, 30); }
+	int chaseCamY(binangle ang) override { return MulScale(-Sin(ang.asbuild()), 1280, 30); }
-	int chaseCamZ(fixedhoriz horiz) { return FixedToInt(MulScale(horiz.asq16(), 1280, 3)) - (16 << 8); }
+	int chaseCamZ(fixedhoriz horiz) override { return FixedToInt(MulScale(horiz.asq16(), 1280, 3)) - (16 << 8); }
+	void processSprites(int viewx, int viewy, int viewz, binangle viewang, double smoothRatio) override;
 
 	GameStats getStats() override;
 };

source/games/blood/src/bloodactor.h

@@ -1,13 +1,5 @@
 #pragma once
 
-#include "build.h"
-#include "common_game.h"
-#include "db.h"
-#include "ai.h"
-#include "nnexts.h"
-#include "seq.h"
-#include "aiunicult.h"
-
 BEGIN_BLD_NS
 
 extern int cumulDamage[kMaxXSprites];

source/games/blood/src/mirrors.cpp

@@ -23,23 +23,16 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "ns.h"	// Must come before everything else!
 
 #include "build.h"
-#include "compat.h"
+#include "automap.h"
+#include "mmulti.h"
+#include "savegamehelp.h"
+
 #include "blood.h" 
 
 BEGIN_BLD_NS
 
 int mirrorcnt, mirrorsector, mirrorwall[4];
 
-typedef struct
-{
-    int type;
-    int link;
-    int dx;
-    int dy;
-    int dz;
-    int wallnum;
-} MIRROR;
-
 MIRROR mirror[16];
 
 void InitMirrors(void)
@@ -64,6 +57,7 @@ void InitMirrors(void)
             if (wall[i].extra > 0 && GetWallType(i) == kWallStack)
             {
                 wall[i].overpicnum = nTile;
+                wall[i].portalflags = PORTAL_WALL_VIEW;
                 mirror[mirrorcnt].wallnum = i;
                 mirror[mirrorcnt].type = 0;
                 wall[i].cstat |= 32;
@@ -96,6 +90,7 @@ void InitMirrors(void)
             wall[i].picnum = nTile;
             mirror[mirrorcnt].type = 0;
             wall[i].cstat |= 32;
+            wall[i].portalflags = PORTAL_WALL_MIRROR;
             mirrorcnt++;
             continue;
         }
@@ -121,6 +116,7 @@ void InitMirrors(void)
             mirror[mirrorcnt].wallnum = i;
             mirror[mirrorcnt].link = j;
             sector[i].floorpicnum = 4080+mirrorcnt;
+            sector[i].portalflags = PORTAL_SECTOR_FLOOR;
             mirrorcnt++;
             mirror[mirrorcnt].type = 1;
             mirror[mirrorcnt].dx = sprite[nLink].x-sprite[nLink2].x;
@@ -129,10 +125,12 @@ void InitMirrors(void)
             mirror[mirrorcnt].wallnum = j;
             mirror[mirrorcnt].link = i;
             sector[j].ceilingpicnum = 4080+mirrorcnt;
+            sector[j].portalflags = PORTAL_SECTOR_CEILING;
             mirrorcnt++;
         }
     }
     mirrorsector = numsectors;
+#if 1 // The new backend won't need this shit anymore.
     for (int i = 0; i < 4; i++)
     {
         mirrorwall[i] = numwalls+i;
@@ -148,270 +146,13 @@ void InitMirrors(void)
     sector[mirrorsector].floorpicnum = 504;
     sector[mirrorsector].wallptr = mirrorwall[0];
     sector[mirrorsector].wallnum = 4;
+#endif
 }
 
 void TranslateMirrorColors(int nShade, int nPalette)
 {
 }
 
-void sub_5571C(char mode)
-{
-    for (int i = mirrorcnt-1; i >= 0; i--)
-    {
-        int nTile = 4080+i;
-        if (TestBitString(gotpic, nTile))
-        {
-            switch (mirror[i].type)
-            {
-                case 1:
-                    if (mode)
-                        sector[mirror[i].wallnum].ceilingstat |= 1;
-                    else
-                        sector[mirror[i].wallnum].ceilingstat &= ~1;
-                    break;
-                case 2:
-                    if (mode)
-                        sector[mirror[i].wallnum].floorstat |= 1;
-                    else
-                        sector[mirror[i].wallnum].floorstat &= ~1;
-                    break;
-            }
-        }
-    }
-}
-
-void sub_557C4(int x, int y, int interpolation)
-{
-    if (spritesortcnt == 0) return;
-    int nViewSprites = spritesortcnt-1;
-    for (int nTSprite = nViewSprites; nTSprite >= 0; nTSprite--)
-    {
-        tspritetype *pTSprite = &tsprite[nTSprite];
-        pTSprite->xrepeat = pTSprite->yrepeat = 0;
-    }
-    for (int i = mirrorcnt-1; i >= 0; i--)
-    {
-        int nTile = 4080+i;
-        if (TestBitString(gotpic, nTile))
-        {
-            if (mirror[i].type == 1 || mirror[i].type == 2)
-            {
-                int nSector = mirror[i].link;
-                int nSector2 = mirror[i].wallnum;
-                int nSprite;
-                SectIterator it(nSector);
-                while ((nSprite = it.NextIndex()) >= 0)
-                {
-                    spritetype *pSprite = &sprite[nSprite];
-                    if (pSprite == gView->pSprite)
-                        continue;
-                    int top, bottom;
-                    GetSpriteExtents(pSprite, &top, &bottom);
-                    int zCeil, zFloor;
-                    getzsofslope(nSector, pSprite->x, pSprite->y, &zCeil, &zFloor);
-                    if (pSprite->statnum == kStatDude && (top < zCeil || bottom > zFloor))
-                    {
-                        int j = i;
-                        if (mirror[i].type == 2)
-                            j++;
-                        else
-                            j--;
-                        int dx = mirror[j].dx;
-                        int dy = mirror[j].dy;
-                        int dz = mirror[j].dz;
-                        tspritetype *pTSprite = &tsprite[spritesortcnt];
-                        memset(pTSprite, 0, sizeof(tspritetype));
-                        pTSprite->type = pSprite->type;
-                        pTSprite->index = pSprite->index;
-                        pTSprite->sectnum = nSector2;
-                        pTSprite->x = pSprite->x+dx;
-                        pTSprite->y = pSprite->y+dy;
-                        pTSprite->z = pSprite->z+dz;
-                        pTSprite->ang = pSprite->ang;
-                        pTSprite->picnum = pSprite->picnum;
-                        pTSprite->shade = pSprite->shade;
-                        pTSprite->pal = pSprite->pal;
-                        pTSprite->xrepeat = pSprite->xrepeat;
-                        pTSprite->yrepeat = pSprite->yrepeat;
-                        pTSprite->xoffset = pSprite->xoffset;
-                        pTSprite->yoffset = pSprite->yoffset;
-                        pTSprite->cstat = pSprite->cstat;
-                        pTSprite->statnum = kStatDecoration;
-                        pTSprite->owner = pSprite->index;
-                        pTSprite->extra = pSprite->extra;
-                        pTSprite->flags = pSprite->hitag|0x200;
-                        pTSprite->x = dx+interpolate(pSprite->ox, pSprite->x, interpolation);
-                        pTSprite->y = dy+interpolate(pSprite->oy, pSprite->y, interpolation);
-                        pTSprite->z = dz+interpolate(pSprite->oz, pSprite->z, interpolation);
-                        pTSprite->ang = pSprite->interpolatedang(interpolation);
-                        spritesortcnt++;
-                    }
-                }
-            }
-        }
-    }
-    for (int nTSprite = spritesortcnt-1; nTSprite >= nViewSprites; nTSprite--)
-    {
-        tspritetype *pTSprite = &tsprite[nTSprite];
-        int nAnim = 0;
-        switch (picanm[pTSprite->picnum].extra&7)
-        {
-        case 1:
-        {
-            int dX = x - pTSprite->x;
-            int dY = y - pTSprite->y;
-            RotateVector(&dX, &dY, 128 - pTSprite->ang);
-            nAnim = GetOctant(dX, dY);
-            if (nAnim <= 4)
-            {
-                pTSprite->cstat &= ~4;
-            }
-            else
-            {
-                nAnim = 8 - nAnim;
-                pTSprite->cstat |= 4;
-            }
-            break;
-        }
-        case 2:
-        {
-            int dX = x - pTSprite->x;
-            int dY = y - pTSprite->y;
-            RotateVector(&dX, &dY, 128 - pTSprite->ang);
-            nAnim = GetOctant(dX, dY);
-            break;
-        }
-        }
-        while (nAnim > 0)
-        {
-            pTSprite->picnum += picanm[pTSprite->picnum].num+1;
-            nAnim--;
-        }
-    }
-}
-
-void DrawMirrors(int x, int y, int z, fixed_t a, fixed_t horiz, int smooth, int viewPlayer)
-{
-    for (int i = mirrorcnt - 1; i >= 0; i--)
-    {
-        int nTile = 4080+i;
-        if (TestBitString(gotpic, nTile))
-        {
-            ClearBitString(gotpic, nTile);
-            switch (mirror[i].type)
-            {
-            case 0:
-            {
-                int nWall = mirror[i].link;
-                int nSector = sectorofwall(nWall);
-                walltype *pWall = &wall[nWall];
-                int nNextWall = pWall->nextwall;
-                int nNextSector = pWall->nextsector;
-                pWall->nextwall = mirrorwall[0];
-                pWall->nextsector = mirrorsector;
-                wall[mirrorwall[0]].nextwall = nWall;
-                wall[mirrorwall[0]].nextsector = nSector;
-                wall[mirrorwall[0]].x = wall[pWall->point2].x;
-                wall[mirrorwall[0]].y = wall[pWall->point2].y;
-                wall[mirrorwall[1]].x = pWall->x;
-                wall[mirrorwall[1]].y = pWall->y;
-                wall[mirrorwall[2]].x = wall[mirrorwall[1]].x+(wall[mirrorwall[1]].x-wall[mirrorwall[0]].x)*16;
-                wall[mirrorwall[2]].y = wall[mirrorwall[1]].y+(wall[mirrorwall[1]].y-wall[mirrorwall[0]].y)*16;
-                wall[mirrorwall[3]].x = wall[mirrorwall[0]].x+(wall[mirrorwall[0]].x-wall[mirrorwall[1]].x)*16;
-                wall[mirrorwall[3]].y = wall[mirrorwall[0]].y+(wall[mirrorwall[0]].y-wall[mirrorwall[1]].y)*16;
-                sector[mirrorsector].floorz = sector[nSector].floorz;
-                sector[mirrorsector].ceilingz = sector[nSector].ceilingz;
-                int cx, cy, ca;
-                if (GetWallType(nWall) == kWallStack)
-                {
-                     cx = x - (wall[pWall->hitag].x-wall[pWall->point2].x);
-                     cy = y - (wall[pWall->hitag].y-wall[pWall->point2].y);
-                     ca = a;
-                }
-                else
-                {
-                    renderPrepareMirror(x,y,z,a,horiz,nWall,&cx,&cy,&ca);
-                }
-                int32_t didmirror = renderDrawRoomsQ16(cx, cy, z, ca,horiz,mirrorsector|MAXSECTORS);
-                viewProcessSprites(cx,cy,z,FixedToInt(ca),smooth);
-                renderDrawMasks();
-                if (GetWallType(nWall) != kWallStack)
-                    renderCompleteMirror();
-                if (wall[nWall].pal != 0 || wall[nWall].shade != 0)
-                    TranslateMirrorColors(wall[nWall].shade, wall[nWall].pal);
-                pWall->nextwall = nNextWall;
-                pWall->nextsector = nNextSector;
-                return;
-            }
-            case 1:
-            {
-                r_rorphase = 1;
-                int nSector = mirror[i].link;
-                int bakCstat;
-                if (viewPlayer >= 0)
-                {
-                    bakCstat = gPlayer[viewPlayer].pSprite->cstat;
-                    if (gViewPos == 0)
-                    {
-                        gPlayer[viewPlayer].pSprite->cstat |= 32768;
-                    }
-                    else
-                    {
-                        gPlayer[viewPlayer].pSprite->cstat |= 514;
-                    }
-                }
-                renderDrawRoomsQ16(x+mirror[i].dx, y+mirror[i].dy, z+mirror[i].dz, a, horiz, nSector|MAXSECTORS);
-                viewProcessSprites(x+mirror[i].dx, y+mirror[i].dy, z+mirror[i].dz, FixedToInt(a), smooth);
-                short fstat = sector[nSector].floorstat;
-                sector[nSector].floorstat |= 1;
-                renderDrawMasks();
-                sector[nSector].floorstat = fstat;
-                for (int i = 0; i < 16; i++)
-                    ClearBitString(gotpic, 4080+i);
-                if (viewPlayer >= 0)
-                {
-                    gPlayer[viewPlayer].pSprite->cstat = bakCstat;
-                }
-                r_rorphase = 0;
-                return;
-            }
-            case 2:
-            {
-                r_rorphase = 1;
-                int nSector = mirror[i].link;
-                int bakCstat;
-                if (viewPlayer >= 0)
-                {
-                    bakCstat = gPlayer[viewPlayer].pSprite->cstat;
-                    if (gViewPos == 0)
-                    {
-                        gPlayer[viewPlayer].pSprite->cstat |= 32768;
-                    }
-                    else
-                    {
-                        gPlayer[viewPlayer].pSprite->cstat |= 514;
-                    }
-                }
-                renderDrawRoomsQ16(x+mirror[i].dx, y+mirror[i].dy, z+mirror[i].dz, a, horiz, nSector|MAXSECTORS);
-                viewProcessSprites(x+mirror[i].dx, y+mirror[i].dy, z+mirror[i].dz, FixedToInt(a), smooth);
-                short cstat = sector[nSector].ceilingstat;
-                sector[nSector].ceilingstat |= 1;
-                renderDrawMasks();
-                sector[nSector].ceilingstat = cstat;
-                for (int i = 0; i < 16; i++)
-                    ClearBitString(gotpic, 4080+i);
-                if (viewPlayer >= 0)
-                {
-                    gPlayer[viewPlayer].pSprite->cstat = bakCstat;
-                }
-                r_rorphase = 0;
-                return;
-            }
-            }
-        }
-    }
-}
-
 //---------------------------------------------------------------------------
 //
 //

source/games/blood/src/misc.h

@@ -37,8 +37,8 @@ void FireInit(void);
 void FireProcess(void);
 void UpdateNetworkMenus(void); 
 void InitMirrors(void);
-void sub_5571C(char mode);
+void setPortalFlags(char mode);
-void sub_557C4(int x, int y, int interpolation);
+void processSpritesOnOtherSideOfPortal(int x, int y, int interpolation);
 void DrawMirrors(int x, int y, int z, fixed_t a, fixed_t horiz, int smooth, int viewPlayer);
 int qanimateoffs(int a1, int a2);
 void HookReplaceFunctions();

source/games/blood/src/nnexts.cpp

@@ -34,7 +34,6 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "mmulti.h"
 #include "blood.h"
 #include "savegamehelp.h"
-#include "bloodactor.h"
 
 BEGIN_BLD_NS
 

source/games/blood/src/nnexts.h

@@ -355,10 +355,11 @@ XSPRITE* evrListRedirectors(int objType, int objXIndex, XSPRITE* pXRedir, int* t
 XSPRITE* evrIsRedirector(int nSprite);
 int listTx(XSPRITE* pXRedir, int tx);
 void seqSpawnerOffSameTx(XSPRITE* pXSource);
-#endif
 
 ////////////////////////////////////////////////////////////////////////
 // This file provides modern features for mappers.
 // For full documentation please visit http://cruo.bloodgame.ru/xxsystem
 ////////////////////////////////////////////////////////////////////////////////////
 END_BLD_NS
+
+#endif

source/games/blood/src/view.cpp

@@ -42,8 +42,10 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "automap.h"
 #include "gamefuncs.h"
 #include "v_draw.h"
+#include "render.h"
 #include "glbackend/glbackend.h"
 
+EXTERN_CVAR(Bool, testnewrenderer)
 BEGIN_BLD_NS
 
 FixedBitArray<kMaxSprites> gInterpolateSprite;
@@ -450,6 +452,101 @@ static void DrawMap(spritetype* pSprite)
         setViewport(hud_size);
 }
 
+void SetupView(int &cX, int& cY, int& cZ, binangle& cA, fixedhoriz& cH, int& nSectnum, double& zDelta)
+{
+    int bobWidth, bobHeight;
+    lookangle rotscrnang;
+    double shakeX, shakeY;
+    nSectnum = gView->pSprite->sectnum;
+    if (numplayers > 1 && gView == gMe && gPrediction && gMe->pXSprite->health > 0)
+    {
+        nSectnum = predict.sectnum;
+        cX = interpolate(predictOld.x, predict.x, gInterpolate);
+        cY = interpolate(predictOld.y, predict.y, gInterpolate);
+        cZ = interpolate(predictOld.viewz, predict.viewz, gInterpolate);
+        zDelta = finterpolate(predictOld.weaponZ, predict.weaponZ, gInterpolate);
+        bobWidth = interpolate(predictOld.bobWidth, predict.bobWidth, gInterpolate);
+        bobHeight = interpolate(predictOld.bobHeight, predict.bobHeight, gInterpolate);
+        shakeX = finterpolate(predictOld.shakeBobX, predict.shakeBobX, gInterpolate);
+        shakeY = finterpolate(predictOld.shakeBobY, predict.shakeBobY, gInterpolate);
+
+        if (!SyncInput())
+        {
+            cA = bamang(predict.angle.asbam() + predict.look_ang.asbam());
+            cH = predict.horiz + predict.horizoff;
+            rotscrnang = predict.rotscrnang;
+        }
+        else
+        {
+            uint32_t oang = predictOld.angle.asbam() + predictOld.look_ang.asbam();
+            uint32_t ang = predict.angle.asbam() + predict.look_ang.asbam();
+            cA = interpolateangbin(oang, ang, gInterpolate);
+
+            fixed_t ohoriz = (predictOld.horiz + predictOld.horizoff).asq16();
+            fixed_t horiz = (predict.horiz + predict.horizoff).asq16();
+            cH = q16horiz(interpolate(ohoriz, horiz, gInterpolate));
+
+            rotscrnang = interpolateanglook(predictOld.rotscrnang.asbam(), predict.rotscrnang.asbam(), gInterpolate);
+        }
+    }
+    else
+    {
+        VIEW* pView = &gPrevView[gViewIndex];
+        cX = interpolate(pView->x, gView->pSprite->x, gInterpolate);
+        cY = interpolate(pView->y, gView->pSprite->y, gInterpolate);
+        cZ = interpolate(pView->viewz, gView->zView, gInterpolate);
+        zDelta = finterpolate(pView->weaponZ, gView->zWeapon - gView->zView - (12 << 8), gInterpolate);
+        bobWidth = interpolate(pView->bobWidth, gView->bobWidth, gInterpolate);
+        bobHeight = interpolate(pView->bobHeight, gView->bobHeight, gInterpolate);
+        shakeX = finterpolate(pView->shakeBobX, gView->swayWidth, gInterpolate);
+        shakeY = finterpolate(pView->shakeBobY, gView->swayHeight, gInterpolate);
+
+        if (!SyncInput())
+        {
+            cA = gView->angle.sum();
+            cH = gView->horizon.sum();
+            rotscrnang = gView->angle.rotscrnang;
+        }
+        else
+        {
+            cA = gView->angle.interpolatedsum(gInterpolate);
+            cH = gView->horizon.interpolatedsum(gInterpolate);
+            rotscrnang = gView->angle.interpolatedrotscrn(gInterpolate);
+        }
+    }
+
+    viewUpdateShake();
+    cH += buildhoriz(shakeHoriz);
+    cA += buildang(shakeAngle);
+    cX += shakeX;
+    cY += shakeY;
+    cZ += shakeZ;
+    shakeX += shakeBobX;
+    shakeY += shakeBobY;
+    cH += buildhoriz(MulScale(0x40000000 - Cos(gView->tiltEffect << 2), 30, 30));
+    if (gViewPos == 0)
+    {
+        if (cl_viewhbob)
+        {
+            cX -= MulScale(bobWidth, Sin(cA.asbuild()), 30) >> 4;
+            cY += MulScale(bobWidth, Cos(cA.asbuild()), 30) >> 4;
+        }
+        if (cl_viewvbob)
+        {
+            cZ += bobHeight;
+        }
+        cZ += xs_CRoundToInt(cH.asq16() / 6553.6);
+        cameradist = -1;
+        cameraclock = PlayClock + MulScale(4, (int)gInterpolate, 16);
+    }
+    else
+    {
+        calcChaseCamPos((int*)&cX, (int*)&cY, (int*)&cZ, gView->pSprite, (short*)&nSectnum, cA, cH, gInterpolate);
+    }
+    CheckLink((int*)&cX, (int*)&cY, (int*)&cZ, &nSectnum);
+    renderSetRollAngle(rotscrnang.asbuildf());
+}
+
 void renderCrystalBall()
 {
 #if 0
@@ -541,23 +638,7 @@ RORHACKOTHER:
 #endif
 }
 
-void render3DViewPolymost()
+void render3DViewPolymost(int nSectnum, int cX, int cY, int cZ, binangle cA, fixedhoriz cH);
-{
-    int yxAspect = yxaspect;
-    int viewingRange = viewingrange;
-    videoSetCorrectedAspect();
-
-    int v1 = xs_CRoundToInt(double(viewingrange) * tan(r_fov * (pi::pi() / 360.)));
-
-    renderSetAspect(v1, yxaspect);
-
-}
-
-// The hackery in this code necessitates separating the main render functions because the modern renderer does not need
-// the messed up way to render portals.
-void render3DViewModern()
-{
-}
 
 void viewDrawScreen(bool sceneonly)
 {
@@ -600,113 +681,25 @@ void viewDrawScreen(bool sceneonly)
         UpdateDacs(basepal);
         UpdateBlend();
 
-        int cX, cY, cZ, bobWidth, bobHeight;
+        int cX, cY, cZ;
-        lookangle rotscrnang;
         binangle cA;
         fixedhoriz cH;
-        double zDelta, shakeX, shakeY;
+        int nSectnum;
-        int nSectnum = gView->pSprite->sectnum;
+        double zDelta;
-        if (numplayers > 1 && gView == gMe && gPrediction && gMe->pXSprite->health > 0)
+        SetupView(cX, cY, cZ, cA, cH, nSectnum, zDelta);
-        {
-            nSectnum = predict.sectnum;
-            cX = interpolate(predictOld.x, predict.x, gInterpolate);
-            cY = interpolate(predictOld.y, predict.y, gInterpolate);
-            cZ = interpolate(predictOld.viewz, predict.viewz, gInterpolate);
-            zDelta = finterpolate(predictOld.weaponZ, predict.weaponZ, gInterpolate);
-            bobWidth = interpolate(predictOld.bobWidth, predict.bobWidth, gInterpolate);
-            bobHeight = interpolate(predictOld.bobHeight, predict.bobHeight, gInterpolate);
-            shakeX = finterpolate(predictOld.shakeBobX, predict.shakeBobX, gInterpolate);
-            shakeY = finterpolate(predictOld.shakeBobY, predict.shakeBobY, gInterpolate);
 
-            if (!SyncInput())
+        int tilt = interpolateang(gScreenTiltO, gScreenTilt, gInterpolate);
-            {
-                cA = bamang(predict.angle.asbam() + predict.look_ang.asbam());
-                cH = predict.horiz + predict.horizoff;
-                rotscrnang = predict.rotscrnang;
-            }
-            else
-            {
-                uint32_t oang = predictOld.angle.asbam() + predictOld.look_ang.asbam();
-                uint32_t ang = predict.angle.asbam() + predict.look_ang.asbam();
-                cA = interpolateangbin(oang, ang, gInterpolate);
-
-                fixed_t ohoriz = (predictOld.horiz + predictOld.horizoff).asq16();
-                fixed_t horiz = (predict.horiz + predict.horizoff).asq16();
-                cH = q16horiz(interpolate(ohoriz, horiz, gInterpolate));
-
-                rotscrnang = interpolateanglook(predictOld.rotscrnang.asbam(), predict.rotscrnang.asbam(), gInterpolate);
-            }
-        }
-        else
-        {
-            VIEW* pView = &gPrevView[gViewIndex];
-            cX = interpolate(pView->x, gView->pSprite->x, gInterpolate);
-            cY = interpolate(pView->y, gView->pSprite->y, gInterpolate);
-            cZ = interpolate(pView->viewz, gView->zView, gInterpolate);
-            zDelta = finterpolate(pView->weaponZ, gView->zWeapon - gView->zView - (12 << 8), gInterpolate);
-            bobWidth = interpolate(pView->bobWidth, gView->bobWidth, gInterpolate);
-            bobHeight = interpolate(pView->bobHeight, gView->bobHeight, gInterpolate);
-            shakeX = finterpolate(pView->shakeBobX, gView->swayWidth, gInterpolate);
-            shakeY = finterpolate(pView->shakeBobY, gView->swayHeight, gInterpolate);
-
-            if (!SyncInput())
-            {
-                cA = gView->angle.sum();
-                cH = gView->horizon.sum();
-                rotscrnang = gView->angle.rotscrnang;
-            }
-            else
-            {
-                cA = gView->angle.interpolatedsum(gInterpolate);
-                cH = gView->horizon.interpolatedsum(gInterpolate);
-                rotscrnang = gView->angle.interpolatedrotscrn(gInterpolate);
-            }
-        }
-
-        viewUpdateShake();
-        cH += buildhoriz(shakeHoriz);
-        cA += buildang(shakeAngle);
-        cX += shakeX;
-        cY += shakeY;
-        cZ += shakeZ;
-        shakeX += shakeBobX;
-        shakeY += shakeBobY;
-        cH += buildhoriz(MulScale(0x40000000 - Cos(gView->tiltEffect << 2), 30, 30));
-        if (gViewPos == 0)
-        {
-            if (cl_viewhbob)
-            {
-                cX -= MulScale(bobWidth, Sin(cA.asbuild()), 30) >> 4;
-                cY += MulScale(bobWidth, Cos(cA.asbuild()), 30) >> 4;
-            }
-            if (cl_viewvbob)
-            {
-                cZ += bobHeight;
-            }
-            cZ += xs_CRoundToInt(cH.asq16() / 6553.6);
-            cameradist = -1;
-            cameraclock = PlayClock + MulScale(4, (int)gInterpolate, 16);
-        }
-        else
-        {
-            calcChaseCamPos((int*)&cX, (int*)&cY, (int*)&cZ, gView->pSprite, (short*)&nSectnum, cA, cH, gInterpolate);
-        }
-        CheckLink((int*)&cX, (int*)&cY, (int*)&cZ, &nSectnum);
-        int v78 = interpolateang(gScreenTiltO, gScreenTilt, gInterpolate);
         uint8_t v14 = 0;
         uint8_t v10 = 0;
         bool bDelirium = powerupCheck(gView, kPwUpDeliriumShroom) > 0;
         static bool bDeliriumOld = false;
         //int tiltcs, tiltdim;
-        uint8_t v4 = powerupCheck(gView, kPwUpCrystalBall) > 0;
+        uint8_t otherview = powerupCheck(gView, kPwUpCrystalBall) > 0;
-#ifdef USE_OPENGL
+        if (tilt || bDelirium)
-        renderSetRollAngle(rotscrnang.asbuildf());
-#endif
-        if (v78 || bDelirium)
         {
-            renderSetRollAngle(v78);
+            renderSetRollAngle(tilt);
         }
-        else if (v4 && gNetPlayers > 1)
+        else if (otherview && gNetPlayers > 1)
         {
 #if 0    
             renderCrystalBall();
@@ -723,7 +716,7 @@ void viewDrawScreen(bool sceneonly)
             deliriumTurn = 0;
             deliriumPitch = 0;
         }
-        int unk = 0;
+        int brightness = 0;
 
         int nSprite;
         StatIterator it(kStatExplosion);
@@ -735,7 +728,7 @@ void viewDrawScreen(bool sceneonly)
             XSPRITE* pXSprite = &xsprite[nXSprite];
             if (TestBitString(gotsector, pSprite->sectnum))
             {
-                unk += pXSprite->data3 * 32;
+                brightness += pXSprite->data3 * 32;
             }
         }
         it.Reset(kStatProjectile);
@@ -747,81 +740,49 @@ void viewDrawScreen(bool sceneonly)
             case kMissileTeslaAlt:
             case kMissileFlareAlt:
             case kMissileTeslaRegular:
-                if (TestBitString(gotsector, pSprite->sectnum)) unk += 256;
+                if (TestBitString(gotsector, pSprite->sectnum)) brightness += 256;
                 break;
             }
         }
-        g_visibility = (int32_t)(ClipLow(gVisibility - 32 * gView->visibility - unk, 0));
+        g_visibility = (int32_t)(ClipLow(gVisibility - 32 * gView->visibility - brightness, 0));
         cA += q16ang(interpolateangfix16(IntToFixed(deliriumTurnO), IntToFixed(deliriumTurn), gInterpolate));
-        int vfc, vf8;
+
-        getzsofslope(nSectnum, cX, cY, &vfc, &vf8);
+        int ceilingZ, floorZ;
-        if (cZ >= vf8)
+        getzsofslope(nSectnum, cX, cY, &ceilingZ, &floorZ);
+        if (cZ >= floorZ)
         {
-            cZ = vf8 - (gUpperLink[nSectnum] >= 0 ? 0 : (8 << 8));
+            cZ = floorZ - (gUpperLink[nSectnum] >= 0 ? 0 : (8 << 8));
         }
-        if (cZ <= vfc)
+        if (cZ <= ceilingZ)
         {
-            cZ = vfc + (gLowerLink[nSectnum] >= 0 ? 0 : (8 << 8));
+            cZ = ceilingZ + (gLowerLink[nSectnum] >= 0 ? 0 : (8 << 8));
         }
         cH = q16horiz(ClipRange(cH.asq16(), gi->playerHorizMin(), gi->playerHorizMax()));
-    RORHACK:
-        int ror_status[16];
-        for (int i = 0; i < 16; i++)
-            ror_status[i] = TestBitString(gotpic, 4080 + i);
-        fixed_t deliriumPitchI = interpolate(IntToFixed(deliriumPitchO), IntToFixed(deliriumPitch), gInterpolate);
-        DrawMirrors(cX, cY, cZ, cA.asq16(), cH.asq16() + deliriumPitchI, gInterpolate, gViewIndex);
-        int bakCstat = gView->pSprite->cstat;
-        if (gViewPos == 0)
-        {
-            gView->pSprite->cstat |= 32768;
-        }
-        else
-        {
-            gView->pSprite->cstat |= 514;
-        }
 
-        renderDrawRoomsQ16(cX, cY, cZ, cA.asq16(), cH.asq16() + deliriumPitchI, nSectnum);
+        if ((tilt || bDelirium) && !sceneonly)
-        viewProcessSprites(cX, cY, cZ, cA.asbuild(), gInterpolate);
-        bool do_ror_hack = false;
-        for (int i = 0; i < 16; i++)
-            if (ror_status[i] != TestBitString(gotpic, 4080 + i))
-                do_ror_hack = true;
-        if (do_ror_hack)
-        {
-            gView->pSprite->cstat = bakCstat;
-            spritesortcnt = 0;
-            goto RORHACK;
-        }
-        sub_5571C(1);
-        int nSpriteSortCnt = spritesortcnt;
-        renderDrawMasks();
-        spritesortcnt = nSpriteSortCnt;
-        sub_5571C(0);
-        sub_557C4(cX, cY, gInterpolate);
-        renderDrawMasks();
-        gView->pSprite->cstat = bakCstat;
-
-        if ((v78 || bDelirium) && !sceneonly)
         {
             if (gDeliriumBlur)
             {
-                // todo: Implement using modern techniques instead of relying on deprecated old stuff that isn't well supported anymore.
+                // todo: Set up a blurring postprocessing shader.
-                /* names broken up so that searching for GL keywords won't find them anymore
+                //const float fBlur = pow(1.f/3.f, 30.f/g_frameRate);
-                if (!bDeliriumOld)
+                //g lAccum(GL _MULT, fBlur);
-                {
+                //g lAccum(GL _ACCUM, 1.f-fBlur);
-                    g lAccum(GL_LOAD, 1.f);
+                //g lAccum(GL _RETURN, 1.f);
-                }
-                else
-                {
-                    const float fBlur = pow(1.f/3.f, 30.f/g_frameRate);
-                    g lAccum(GL _MULT, fBlur);
-                    g lAccum(GL _ACCUM, 1.f-fBlur);
-                    g lAccum(GL _RETURN, 1.f);
-                }
-                */
             }
         }
 
+        if (testnewrenderer)
+        {
+            fixed_t deliriumPitchI = interpolate(IntToFixed(deliriumPitchO), IntToFixed(deliriumPitch), gInterpolate);
+            int bakCstat = gView->pSprite->cstat;
+            gView->pSprite->cstat |= (gViewPos == 0) ? CSTAT_SPRITE_INVISIBLE : CSTAT_SPRITE_TRANSLUCENT | CSTAT_SPRITE_TRANSLUCENT_INVERT;
+            render_drawrooms(gView->pSprite, { cX, cY, cZ }, nSectnum, cA.asq16(), cH.asq16() + deliriumPitchI, 0, RSF_UPDATESECTOR);
+            gView->pSprite->cstat = bakCstat;
+        }
+        else
+        {
+            render3DViewPolymost(nSectnum, cX, cY, cZ, cA, cH);
+        }
         bDeliriumOld = bDelirium && gDeliriumBlur;
 
         int nClipDist = gView->pSprite->clipdist << 2;