mirror of
https://github.com/ZDoom/Raze.git
synced 2024-12-12 05:32:14 +00:00
401 lines
10 KiB
C++
401 lines
10 KiB
C++
//
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Copyright(C) 2000-2016 Christoph Oelckers
|
|
// All rights reserved.
|
|
//
|
|
// 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 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with this program. If not, see http://www.gnu.org/licenses/
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
/*
|
|
** gl_flat.cpp
|
|
** Flat processing
|
|
**
|
|
*/
|
|
|
|
#include "matrix.h"
|
|
#include "hw_dynlightdata.h"
|
|
#include "hw_cvars.h"
|
|
#include "hw_clock.h"
|
|
#include "hw_material.h"
|
|
#include "hw_drawinfo.h"
|
|
#include "flatvertices.h"
|
|
#include "hw_lightbuffer.h"
|
|
#include "hw_drawstructs.h"
|
|
#include "hw_renderstate.h"
|
|
#include "texturemanager.h"
|
|
#include "earcut.hpp"
|
|
|
|
#ifdef _DEBUG
|
|
CVAR(Int, gl_breaksec, -1, 0)
|
|
#endif
|
|
|
|
extern PalEntry GlobalMapFog;
|
|
extern float GlobalFogDensity;
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
#if 0
|
|
void HWFlat::SetupLights(HWDrawInfo *di, FLightNode * node, FDynLightData &lightdata, int portalgroup)
|
|
{
|
|
Plane p;
|
|
|
|
lightdata.Clear();
|
|
if (renderstyle == STYLE_Add && !di->Level->lightadditivesurfaces)
|
|
{
|
|
dynlightindex = -1;
|
|
return; // no lights on additively blended surfaces.
|
|
}
|
|
while (node)
|
|
{
|
|
FDynamicLight * light = node->lightsource;
|
|
|
|
if (!light->IsActive())
|
|
{
|
|
node = node->nextLight;
|
|
continue;
|
|
}
|
|
iter_dlightf++;
|
|
|
|
// we must do the side check here because gl_GetLight needs the correct plane orientation
|
|
// which we don't have for Legacy-style 3D-floors
|
|
double planeh = plane.plane.ZatPoint(light->Pos);
|
|
if ((planeh<light->Z() && ceiling) || (planeh>light->Z() && !ceiling))
|
|
{
|
|
node = node->nextLight;
|
|
continue;
|
|
}
|
|
|
|
p.Set(plane.plane.Normal(), plane.plane.fD());
|
|
draw_dlightf += GetLight(lightdata, portalgroup, p, light, false);
|
|
node = node->nextLight;
|
|
}
|
|
|
|
dynlightindex = screen->mLights->UploadLights(lightdata);
|
|
}
|
|
#endif
|
|
|
|
//==========================================================================
|
|
//
|
|
// CalcPlane fixme - this should be stored in the sector, not be recalculated each frame.
|
|
//
|
|
//==========================================================================
|
|
|
|
static FVector3 CalcNormal(sectortype* sector, int plane)
|
|
{
|
|
FVector3 pt[3];
|
|
|
|
auto wal = &wall[sector->wallptr];
|
|
auto wal2 = &wall[wal->point2];
|
|
|
|
pt[0] = { (float)WallStartX(wal), (float)WallStartY(wal), 0 };
|
|
pt[1] = { (float)WallEndX(wal), (float)WallEndY(wal), 0 };
|
|
PlanesAtPoint(sector, wal->x, wal->y, plane ? &pt[0].Z : nullptr, plane? nullptr : &pt[0].Z);
|
|
PlanesAtPoint(sector, wal2->x, wal2->y, plane ? &pt[1].Z : nullptr, plane ? nullptr : &pt[1].Z);
|
|
|
|
if (pt[0].X == pt[1].X)
|
|
{
|
|
if (pt[0].Y == pt[1].Y) return { 0.f, 0.f, plane ? -1.f : 1.f };
|
|
pt[2].X = pt[0].X + 4;
|
|
pt[2].Y = pt[0].Y;
|
|
}
|
|
else
|
|
{
|
|
pt[2].X = pt[0].X;
|
|
pt[2].Y = pt[0].Y + 4;
|
|
}
|
|
PlanesAtPoint(sector, pt[2].X * 16, pt[2].Y * 16, plane ? &pt[2].Z : nullptr, plane ? nullptr : &pt[2].Z);
|
|
|
|
auto normal = (pt[2] - pt[0]) ^ (pt[1] - pt[0]);
|
|
|
|
if ((pt[2].Z < 0 && !plane) || (pt[2].Z > 0 && plane)) return -pt[2];
|
|
return pt[2];
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// this should be buffered later.
|
|
//
|
|
//==========================================================================
|
|
|
|
void HWFlat::MakeVertices()
|
|
{
|
|
int numvertices = sec->wallnum;
|
|
|
|
TArray<FVector3> points(numvertices, true);
|
|
using Point = std::pair<float, float>;
|
|
std::vector<std::vector<Point>> polygon;
|
|
std::vector<Point>* curPoly;
|
|
|
|
polygon.resize(1);
|
|
curPoly = &polygon.back();
|
|
|
|
for (int i = 0; i < numvertices; i++)
|
|
{
|
|
auto wal = &wall[sec->wallptr + i];
|
|
|
|
float X = WallStartX(wal);
|
|
float Y = WallStartY(wal);
|
|
curPoly->push_back(std::make_pair(X, Y));
|
|
if (wal->point2 != sec->wallptr+i+1 && i < numvertices - 1)
|
|
{
|
|
polygon.resize(polygon.size() + 1);
|
|
curPoly = &polygon.back();
|
|
}
|
|
}
|
|
// Now make sure that the outer boundary is the first polygon by picking a point that's as much to the outside as possible.
|
|
int outer = 0;
|
|
float minx = FLT_MAX;
|
|
float miny = FLT_MAX;
|
|
for (size_t a = 0; a < polygon.size(); a++)
|
|
{
|
|
for (auto& pt : polygon[a])
|
|
{
|
|
if (pt.first < minx || (pt.first == minx && pt.second < miny))
|
|
{
|
|
minx = pt.first;
|
|
miny = pt.second;
|
|
outer = a;
|
|
}
|
|
}
|
|
}
|
|
if (outer != 0) std::swap(polygon[0], polygon[outer]);
|
|
auto indices = mapbox::earcut(polygon);
|
|
|
|
int p = 0;
|
|
for (size_t a = 0; a < polygon.size(); a++)
|
|
{
|
|
for (auto& pt : polygon[a])
|
|
{
|
|
float planez;
|
|
PlanesAtPoint(sec, (pt.first * 16), (pt.second * -16), plane ? &planez : nullptr, !plane ? &planez : nullptr);
|
|
FVector3 point = { pt.first, pt.second, planez };
|
|
points[p++] = point;
|
|
}
|
|
}
|
|
|
|
auto ret = screen->mVertexData->AllocVertices(indices.size());
|
|
auto vp = ret.first;
|
|
for (auto i : indices)
|
|
{
|
|
auto& pt = points[indices[i]];
|
|
vp->SetVertex(pt.X, pt.Z, pt.Y);
|
|
vp->SetTexCoord(pt.X / 64.f, pt.Y / 64.f); // todo: align
|
|
vp++;
|
|
}
|
|
vertindex = ret.second;
|
|
vertcount = indices.size();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
void HWFlat::DrawFlat(HWDrawInfo *di, FRenderState &state, bool translucent)
|
|
{
|
|
if (screen->BuffersArePersistent())
|
|
{
|
|
MakeVertices();
|
|
}
|
|
|
|
#ifdef _DEBUG
|
|
if (sec - sector == gl_breaksec)
|
|
{
|
|
int a = 0;
|
|
}
|
|
#endif
|
|
|
|
state.SetNormal(CalcNormal(sector, plane));
|
|
|
|
// Fog must be done before the texture so that the texture selector can override it.
|
|
bool foggy = (GlobalMapFog || (fade & 0xffffff));
|
|
auto ShadeDiv = lookups.tables[palette].ShadeFactor;
|
|
// Disable brightmaps if non-black fog is used.
|
|
if (ShadeDiv >= 1 / 1000.f && foggy)
|
|
{
|
|
state.EnableFog(1);
|
|
float density = GlobalMapFog ? GlobalFogDensity : 350.f - Scale(numshades - shade, 150, numshades);
|
|
state.SetFog((GlobalMapFog) ? GlobalMapFog : fade, density);
|
|
state.SetSoftLightLevel(255);
|
|
state.SetLightParms(128.f, 1 / 1000.f);
|
|
}
|
|
else
|
|
{
|
|
state.EnableFog(0);
|
|
state.SetFog(0, 0);
|
|
state.SetSoftLightLevel(ShadeDiv >= 1 / 1000.f ? 255 - Scale(shade, 255, numshades) : 255);
|
|
state.SetLightParms(visibility, ShadeDiv / (numshades - 2));
|
|
}
|
|
|
|
// The shade rgb from the tint is ignored here.
|
|
state.SetColor(PalEntry(255, globalr, globalg, globalb));
|
|
|
|
if (translucent)
|
|
{
|
|
state.SetRenderStyle(renderstyle);
|
|
if (!texture->GetTranslucency()) state.AlphaFunc(Alpha_GEqual, gl_mask_threshold);
|
|
else state.AlphaFunc(Alpha_GEqual, 0.f);
|
|
}
|
|
state.SetMaterial(texture, UF_Texture, 0, CLAMP_NONE, 0, -1);
|
|
|
|
state.SetLightIndex(dynlightindex);
|
|
state.Draw(DT_Triangles, vertindex, vertcount);
|
|
vertexcount += vertcount;
|
|
|
|
state.EnableTextureMatrix(false);
|
|
|
|
state.SetRenderStyle(DefaultRenderStyle());
|
|
//state.SetObjectColor(0xffffffff);
|
|
//state.SetAddColor(0);
|
|
//state.ApplyTextureManipulation(nullptr);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// HWFlat::PutFlat
|
|
//
|
|
// submit to the renderer
|
|
//
|
|
//==========================================================================
|
|
|
|
void HWFlat::PutFlat(HWDrawInfo *di, int whichplane)
|
|
{
|
|
if (!screen->BuffersArePersistent()) // 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)))
|
|
{
|
|
SetupLights(di, section->lighthead, lightdata, sector->PortalGroup);
|
|
}
|
|
#endif
|
|
MakeVertices();
|
|
}
|
|
plane = whichplane;
|
|
di->AddFlat(this);
|
|
rendered_flats++;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Process a sector's flats for rendering
|
|
// This function is only called once per sector.
|
|
// Subsequent subsectors are just quickly added to the ss_renderflags array
|
|
//
|
|
//==========================================================================
|
|
|
|
void HWFlat::ProcessSector(HWDrawInfo *di, sectortype * frontsector, int which)
|
|
{
|
|
#ifdef _DEBUG
|
|
if (frontsector - sector == gl_breaksec)
|
|
{
|
|
int a = 0;
|
|
}
|
|
#endif
|
|
|
|
dynlightindex = -1;
|
|
|
|
const auto &vp = di->Viewpoint;
|
|
|
|
float florz, ceilz;
|
|
PlanesAtPoint(frontsector, vp.Pos.X, vp.Pos.Y, &ceilz, &florz);
|
|
|
|
fade = lookups.getFade(frontsector->floorpal); // fog is per sector.
|
|
visibility = sectorVisibility(frontsector);
|
|
sec = frontsector;
|
|
|
|
//
|
|
//
|
|
//
|
|
// do floors
|
|
//
|
|
//
|
|
//
|
|
if ((which & SSRF_RENDERFLOOR) && !(frontsector->floorstat & CSTAT_SECTOR_SKY) && florz <= vp.Pos.Z)
|
|
{
|
|
// process the original floor first.
|
|
|
|
shade = frontsector->floorshade;
|
|
palette = frontsector->floorpal;
|
|
|
|
//port = frontsector->ValidatePortal(sector_t::floor);
|
|
#if 0
|
|
if ((stack = (port != NULL)))
|
|
{
|
|
alpha = frontsector->GetAlpha(sector_t::floor);
|
|
}
|
|
else
|
|
#endif
|
|
alpha = 1.0f;
|
|
|
|
if (alpha != 0.f)
|
|
{
|
|
int tilenum = frontsector->floorpicnum;
|
|
tileUpdatePicnum(&tilenum, tilenum, 0);
|
|
texture = tileGetTexture(tilenum);
|
|
if (texture && texture->isValid())
|
|
{
|
|
//iboindex = frontsector->iboindex[sector_t::floor];
|
|
renderstyle = STYLE_Translucent;
|
|
PutFlat(di, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
//
|
|
//
|
|
// do ceilings
|
|
//
|
|
//
|
|
//
|
|
if ((which & SSRF_RENDERCEILING) && !(frontsector->ceilingstat & CSTAT_SECTOR_SKY) && ceilz >= vp.Pos.Z)
|
|
{
|
|
// process the original ceiling first.
|
|
|
|
shade = frontsector->ceilingshade;
|
|
palette = frontsector->ceilingpal;
|
|
|
|
|
|
/*
|
|
port = frontsector->ValidatePortal(sector_t::ceiling);
|
|
if ((stack = (port != NULL)))
|
|
{
|
|
alpha = frontsector->GetAlpha(sector_t::ceiling);
|
|
}
|
|
else*/
|
|
alpha = 1.0f;
|
|
|
|
if (alpha != 0.f)
|
|
{
|
|
//iboindex = frontsector->iboindex[sector_t::ceiling];
|
|
|
|
int tilenum = frontsector->ceilingpicnum;
|
|
tileUpdatePicnum(&tilenum, tilenum, 0);
|
|
texture = tileGetTexture(tilenum);
|
|
if (texture && texture->isValid())
|
|
{
|
|
//iboindex = frontsector->iboindex[sector_t::floor];
|
|
renderstyle = STYLE_Translucent;
|
|
PutFlat(di, 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|