- implemented RR's geometry effect.

The grossest of all gross render hack that were ever done with Build...

source/core/automap.cpp

@@ -478,7 +478,7 @@ static void drawwhitelines(int cposx, int cposy, int czoom, int cang)
 		for (j = startwall, wal = &wall[startwall]; j < endwall; j++, wal++)
 		{
 			if (wal->nextwall >= 0) continue;
-			if (!tileGetTexture(wal->picnum)->isValid()) continue;
+			if (!gFullMap && !tileGetTexture(wal->picnum)->isValid()) continue;
 
 			if ((g_gameType & GAMEFLAG_SW) && !gFullMap && !show2dwall[j])
 				continue;
@@ -588,7 +588,7 @@ void renderDrawMapView(int cposx, int cposy, int czoom, int cang)
 		int picnum = sector[i].floorpicnum;
 		if ((unsigned)picnum >= (unsigned)MAXTILES) continue;
 
-		auto mesh = sectorGeometry.get(i, 0);
+		auto mesh = sectorGeometry.get(i, 0, { 0.f,0.f });
 		vertices.Resize(mesh->vertices.Size());
 		for (unsigned j = 0; j < mesh->vertices.Size(); j++)
 		{

source/core/gamestruct.h

@@ -47,6 +47,19 @@ struct MapRecord;
 
 extern cycle_t drawtime, actortime, thinktime, gameupdatetime;
 
+struct GeoEffect
+{
+	int* geosectorwarp;
+	int* geosectorwarp2;
+	int* geosector;
+	int* geox;
+	int* geoy;
+	int* geox2;
+	int* geoy2;
+	int geocnt;
+
+};
+
 struct GameInterface
 {
 	virtual const char* Name() { return "$"; }
@@ -107,6 +120,7 @@ struct GameInterface
 	virtual void UpdateCameras(double smoothratio) {}
 	virtual void EnterPortal(spritetype* viewer, int type) {}
 	virtual void LeavePortal(spritetype* viewer, int type) {}
+	virtual bool GetGeoEffect(GeoEffect* eff, int viewsector) { return false; }
 
 	virtual FString statFPS()
 	{

source/core/rendering/hw_entrypoint.cpp

@@ -6,7 +6,7 @@
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 2 of the License, or
+// the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 //
 // This program is distributed in the hope that it will be useful,

source/core/rendering/scene/hw_drawinfo.cpp

@@ -384,6 +384,8 @@ void HWDrawInfo::CreateScene()
 	screen->mLights->Map();
 
 	spritesortcnt = 0;
+	ingeo = false;
+	geoofs = { 0,0 };
 
 	vec2_t view = { int(vp.Pos.X * 16), int(vp.Pos.Y * -16) };
 	mDrawer.Init(this, mClipper, view);
@@ -397,6 +399,79 @@ void HWDrawInfo::CreateScene()
 	DispatchSprites();
 	SetupSprite.Unclock();
 
+	GeoEffect eff;
+	int effsect = vp.SectNums ? vp.SectNums[0] : vp.SectCount;
+	int drawsect = effsect;
+	// RR geometry hack. Ugh...
+	// This just adds to the existing render list, so we must offset the effect areas to the same xy-space as the main one as we cannot change the view matrix.
+	if (gi->GetGeoEffect(&eff, effsect))
+	{
+		ingeo = true;
+		geoofs = { (float)eff.geox[0], (float)eff.geoy[0] };
+		// process the first layer.
+		for (int i = 0; i < eff.geocnt; i++)
+		{
+			auto sect = &sector[eff.geosectorwarp[i]];
+			for (auto w = 0; w < sect->wallnum; w++)
+			{
+				auto wal = &wall[sect->wallptr + w];
+				wal->x += eff.geox[i];
+				wal->y += eff.geoy[i];
+			}
+			sect->dirty = 255;
+			if (eff.geosector[i] == effsect) drawsect = eff.geosectorwarp[i];
+		}
+
+		mClipper->Clear();
+		mClipper->SafeAddClipRange(bamang(vp.RotAngle + a1), bamang(vp.RotAngle - a1));
+		mDrawer.Init(this, mClipper, view);
+		mDrawer.RenderScene(&drawsect, 1);
+
+		for (int i = 0; i < eff.geocnt; i++)
+		{
+			auto sect = &sector[eff.geosectorwarp[i]];
+			for (auto w = 0; w < sect->wallnum; w++)
+			{
+				auto wal = &wall[sect->wallptr + w];
+				wal->x -= eff.geox[i];
+				wal->y -= eff.geoy[i];
+			}
+		}
+
+		// Now the second layer. Same shit, different arrays.
+		geoofs = { (float)eff.geox2[0], (float)eff.geoy2[0] };
+		for (int i = 0; i < eff.geocnt; i++)
+		{
+			auto sect = &sector[eff.geosectorwarp2[i]];
+			for (auto w = 0; w < sect->wallnum; w++)
+			{
+				auto wal = &wall[sect->wallptr + w];
+				wal->x += eff.geox2[i];
+				wal->y += eff.geoy2[i];
+			}
+			sect->dirty = 255;
+			if (eff.geosector[i] == effsect) drawsect = eff.geosectorwarp2[i];
+		}
+
+		mClipper->Clear();
+		mClipper->SafeAddClipRange(bamang(vp.RotAngle + a1), bamang(vp.RotAngle - a1));
+		mDrawer.Init(this, mClipper, view);
+		mDrawer.RenderScene(&drawsect, 1);
+
+		for (int i = 0; i < eff.geocnt; i++)
+		{
+			auto sect = &sector[eff.geosectorwarp2[i]];
+			for (auto w = 0; w < sect->wallnum; w++)
+			{
+				auto wal = &wall[sect->wallptr + w];
+				wal->x -= eff.geox2[i];
+				wal->y -= eff.geoy2[i];
+			}
+		}
+		ingeo = false;
+	}
+
+
 	screen->mLights->Unmap();
 	screen->mVertexData->Unmap();
 

source/core/rendering/scene/hw_drawinfo.h

@@ -109,10 +109,12 @@ struct HWDrawInfo
 	HWViewpointUniforms VPUniforms;	// per-viewpoint uniform state
 	TArray<HWPortal *> Portals;
 	spritetype tsprite[MAXSPRITESONSCREEN];
-	int spritesortcnt = 0;
+	int spritesortcnt;
 
 	// This is needed by the BSP traverser.
 	bool multithread;
+	bool ingeo;
+	FVector2 geoofs;
 
 private:
     bool inview;

source/core/rendering/scene/hw_drawstructs.h

@@ -258,6 +258,7 @@ public:
 	FRenderStyle RenderStyle;
 	int iboindex;
 	bool stack;
+	FVector2 geoofs;
 	//int vboheight;
 
 	int plane;

source/core/rendering/scene/hw_flats.cpp

@@ -101,7 +101,7 @@ void HWFlat::MakeVertices()
 	bool canvas = texture->isHardwareCanvas();
 	if (sprite == nullptr)
 	{
-		auto mesh = sectorGeometry.get(sec - sector, plane);
+		auto mesh = sectorGeometry.get(sec - sector, plane, geoofs);
 		if (!mesh) return;
 		auto ret = screen->mVertexData->AllocVertices(mesh->vertices.Size());
 		auto vp = ret.first;
@@ -161,7 +161,7 @@ void HWFlat::DrawFlat(HWDrawInfo *di, FRenderState &state, bool translucent)
 
 	if (!sprite)
 	{
-		auto mesh = sectorGeometry.get(sec - sector, plane);
+		auto mesh = sectorGeometry.get(sec - sector, plane, geoofs);
 		state.SetNormal(mesh->normal);
 	}
 	else
@@ -231,7 +231,7 @@ void HWFlat::PutFlat(HWDrawInfo *di, int whichplane)
 {
 	vertcount = 0;
 	plane = whichplane;
-	if (!screen->BuffersArePersistent() || sprite)	// should be made static buffer content later (when the logic is working)
+	if (!screen->BuffersArePersistent() || sprite || di->ingeo)	// should be made static buffer content later (when the logic is working)
 	{
 #if 0
 		if (di->Level->HasDynamicLights && texture != nullptr && !di->isFullbrightScene() && !(hacktype & (SSRF_PLANEHACK | SSRF_FLOODHACK)))
@@ -273,6 +273,7 @@ void HWFlat::ProcessSector(HWDrawInfo *di, sectortype * frontsector, int which)
 	visibility = sectorVisibility(frontsector);
 	sec = frontsector;
 	sprite = nullptr;
+	geoofs = di->geoofs;
 
 	//
 	//

source/core/sectorgeometry.cpp

@@ -99,17 +99,19 @@ class UVCalculator
 	FGameTexture* tex;
 	float xpanning, ypanning;
 	float xscaled, yscaled;
+	FVector2 offset;
 
 public:
 
 	// Moved in from pragmas.h
-	UVCalculator(sectortype* sec, int plane, FGameTexture* tx)
+	UVCalculator(sectortype* sec, int plane, FGameTexture* tx, const FVector2& off)
 	{
 		float xpan, ypan;
 
 		sect = sec;
 		tex = tx;
 		myplane = plane;
+		offset = off;
 
 		auto firstwall = &wall[sec->wallptr];
 		ix1 = firstwall->x;
@@ -188,8 +190,8 @@ public:
 		}
 		else 
 		{
-			tu = x;
-			tv = -y;
+			tu = x - offset.X;
+			tv = -y - offset.Y;
 		}
 
 		if (stat & CSTAT_SECTOR_SWAPXY)
@@ -212,7 +214,7 @@ public:
 //
 //==========================================================================
 
-void SectorGeometry::MakeVertices(unsigned int secnum, int plane)
+void SectorGeometry::MakeVertices(unsigned int secnum, int plane, const FVector2& offset)
 {
 	auto sec = &sector[secnum];
 	int numvertices = sec->wallnum;
@@ -297,7 +299,7 @@ void SectorGeometry::MakeVertices(unsigned int secnum, int plane)
 
 	auto texture = tileGetTexture(plane ? sec->ceilingpicnum : sec->floorpicnum);
 
-	UVCalculator uvcalc(sec, plane, texture);
+	UVCalculator uvcalc(sec, plane, texture, offset);
 	
 	for(unsigned i = 0; i < entry.vertices.Size(); i++)
 	{
@@ -317,7 +319,7 @@ void SectorGeometry::MakeVertices(unsigned int secnum, int plane)
 //
 //==========================================================================
 
-void SectorGeometry::ValidateSector(unsigned int secnum, int plane)
+void SectorGeometry::ValidateSector(unsigned int secnum, int plane, const FVector2& offset)
 {
 	auto sec = &sector[secnum];
 	auto compare = &data[secnum].compare[plane];
@@ -350,5 +352,5 @@ void SectorGeometry::ValidateSector(unsigned int secnum, int plane)
 	*compare = *sec;
 	data[secnum].poscompare[plane] = wall[sec->wallptr].pos;
 	data[secnum].poscompare2[plane] = wall[wall[sec->wallptr].point2].pos;
-	MakeVertices(secnum, plane);
+	MakeVertices(secnum, plane, offset);
 }

source/core/sectorgeometry.h

@@ -23,14 +23,14 @@ class SectorGeometry
 {
 	TArray<SectorGeometryData> data;
 
-	void ValidateSector(unsigned sectnum, int plane);
-	void MakeVertices(unsigned sectnum, int plane);
+	void ValidateSector(unsigned sectnum, int plane, const FVector2& offset);
+	void MakeVertices(unsigned sectnum, int plane, const FVector2& offset);
 
 public:
-	SectorGeometryPlane* get(unsigned sectnum, int plane)
+	SectorGeometryPlane* get(unsigned sectnum, int plane, const FVector2& offset)
 	{
 		if (sectnum >= data.Size()) return nullptr;
-		ValidateSector(sectnum, plane);
+		ValidateSector(sectnum, plane, offset);
 		return &data[sectnum].planes[plane];
 	}
 

source/games/duke/src/duke3d.h

@@ -69,6 +69,7 @@ struct GameInterface : public ::GameInterface
 	void UpdateCameras(double smoothratio) override;
 	void EnterPortal(spritetype* viewer, int type) override;
 	void LeavePortal(spritetype* viewer, int type) override;
+	bool GetGeoEffect(GeoEffect* eff, int viewsector) override;
 
 };
 

source/games/duke/src/render.cpp

@@ -144,6 +144,23 @@ void GameInterface::LeavePortal(spritetype* viewer, int type)
 	if (type == PORTAL_WALL_MIRROR) display_mirror--;
 }
 
+bool GameInterface::GetGeoEffect(GeoEffect* eff, int viewsector)
+{
+	if (!isRR() || sector[viewsector].lotag == 848)
+	{
+		eff->geocnt = geocnt;
+		eff->geosector = geosector;
+		eff->geosectorwarp = geosectorwarp;
+		eff->geosectorwarp2 = geosectorwarp2;
+		eff->geox = geox;
+		eff->geoy = geoy;
+		eff->geox2 = geox2;
+		eff->geoy2 = geoy2;
+		return true;
+	}
+	return false;
+}
+
 //---------------------------------------------------------------------------
 //
 // RRRA's drug distortion effect