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Line portal rendering

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This commit is contained in:
Magnus Norddahl 2016-11-25 23:44:55 +01:00
commit cc3ac9ea05
4 changed files with 228 additions and 10 deletions
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79
src/r_poly_wall.cpp
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@ -23,6 +23,9 @@
#include <stdlib.h>
#include "templates.h"
#include "doomdef.h"
#include "doomstat.h"
#include "doomdata.h"
#include "p_lnspec.h"
#include "sbar.h"
#include "r_data/r_translate.h"
#include "r_poly_wall.h"
@ -30,8 +33,82 @@
#include "r_poly.h"
#include "r_sky.h" // for skyflatnum
bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, seg_t *line, sector_t *frontsector, uint32_t subsectorDepth, uint32_t stencilValue, std::vector<PolyTranslucentObject> &translucentWallsOutput)
EXTERN_CVAR(Bool, r_drawmirrors)
bool RenderPolyWall::RenderLine(const TriMatrix &worldToClip, seg_t *line, sector_t *frontsector, uint32_t subsectorDepth, uint32_t stencilValue, std::vector<PolyTranslucentObject> &translucentWallsOutput, std::vector<std::unique_ptr<PolyDrawLinePortal>> &linePortals)
{
PolyDrawLinePortal *polyportal = nullptr;
if (line->backsector == nullptr && line->sidedef == line->linedef->sidedef[0] && (line->linedef->special == Line_Mirror && r_drawmirrors))
{
linePortals.push_back(std::make_unique<PolyDrawLinePortal>(line->linedef));
polyportal = linePortals.back().get();
}
else if (line->linedef && line->linedef->isVisualPortal())
{
FLinePortal *portal = line->linedef->getPortal();
for (auto &p : linePortals)
{
if (p->Portal == portal) // To do: what other criterias do we need to check for?
{
polyportal = p.get();
break;
}
}
if (!polyportal)
{
linePortals.push_back(std::make_unique<PolyDrawLinePortal>(portal));
polyportal = linePortals.back().get();
}
}
if (polyportal)
{
double ceil1 = frontsector->ceilingplane.ZatPoint(line->v1);
double floor1 = frontsector->floorplane.ZatPoint(line->v1);
double ceil2 = frontsector->ceilingplane.ZatPoint(line->v2);
double floor2 = frontsector->floorplane.ZatPoint(line->v2);
DVector2 v1 = line->v1->fPos();
DVector2 v2 = line->v2->fPos();
TriVertex *vertices = PolyVertexBuffer::GetVertices(4);
if (!vertices)
return true;
vertices[0].x = (float)v1.X;
vertices[0].y = (float)v1.Y;
vertices[0].z = (float)ceil1;
vertices[0].w = 1.0f;
vertices[1].x = (float)v2.X;
vertices[1].y = (float)v2.Y;
vertices[1].z = (float)ceil2;
vertices[1].w = 1.0f;
vertices[2].x = (float)v2.X;
vertices[2].y = (float)v2.Y;
vertices[2].z = (float)floor2;
vertices[2].w = 1.0f;
vertices[3].x = (float)v1.X;
vertices[3].y = (float)v1.Y;
vertices[3].z = (float)floor1;
vertices[3].w = 1.0f;
PolyDrawArgs args;
args.uniforms.flags = 0;
args.objectToClip = &worldToClip;
args.vinput = vertices;
args.vcount = 4;
args.mode = TriangleDrawMode::Fan;
args.ccw = true;
args.stenciltestvalue = stencilValue;
args.stencilwritevalue = polyportal->StencilValue;
PolyTriangleDrawer::draw(args, TriDrawVariant::Stencil, TriBlendMode::Copy);
polyportal->Shape.push_back({ vertices, 4, true, subsectorDepth });
return true;
}
RenderPolyWall wall;
wall.LineSeg = line;
wall.Line = line->linedef;