void FDrawInfo::FloodLowerGap(seg_t * seg)
{
wallseg ws;
sector_t ffake, bfake;
sector_t * fakefsector = gl_FakeFlat(seg->frontsector, &ffake, true);
sector_t * fakebsector = gl_FakeFlat(seg->backsector, &bfake, false);
vertex_t * v1, * v2;
// Although the plane can be sloped this code will only be called
// when the edge itself is not.
fixed_t backz = fakebsector->floorplane.ZatPoint(seg->v1);
fixed_t frontz = fakefsector->floorplane.ZatPoint(seg->v1);
if (fakebsector->GetTexture(sector_t::floor) == skyflatnum) return;
if (fakebsector->GetPlaneTexZ(sector_t::floor) > viewz) return;
if (seg->sidedef == seg->linedef->sidedef[0])
{
v1=seg->linedef->v1;
v2=seg->linedef->v2;
}
else
{
v1=seg->linedef->v2;
v2=seg->linedef->v1;
}
ws.x1= FIXED2FLOAT(v1->x);
ws.y1= FIXED2FLOAT(v1->y);
ws.x2= FIXED2FLOAT(v2->x);
ws.y2= FIXED2FLOAT(v2->y);
ws.z2= FIXED2FLOAT(frontz);
ws.z1= FIXED2FLOAT(backz);
// Step1: Draw a stencil into the gap
SetupFloodStencil(&ws);
// Step2: Project the ceiling plane into the gap
DrawFloodedPlane(&ws, ws.z1, fakebsector, false);
// Step3: Delete the stencil
ClearFloodStencil(&ws);
}
void FDrawInfo::FloodLowerGap(seg_t * seg)
{
wallseg ws;
sector_t ffake, bfake;
sector_t * fakefsector = hw_FakeFlat(seg->frontsector, &ffake, in_area, true);
sector_t * fakebsector = hw_FakeFlat(seg->backsector, &bfake, in_area, false);
vertex_t * v1, * v2;
// Although the plane can be sloped this code will only be called
// when the edge itself is not.
double backz = fakebsector->floorplane.ZatPoint(seg->v1);
double frontz = fakefsector->floorplane.ZatPoint(seg->v1);
if (fakebsector->GetTexture(sector_t::floor) == skyflatnum) return;
if (fakebsector->GetPlaneTexZ(sector_t::floor) > Viewpoint.Pos.Z) return;
if (seg->sidedef == seg->linedef->sidedef[0])
{
v1=seg->linedef->v1;
v2=seg->linedef->v2;
}
else
{
v1=seg->linedef->v2;
v2=seg->linedef->v1;
}
ws.x1 = v1->fX();
ws.y1 = v1->fY();
ws.x2 = v2->fX();
ws.y2 = v2->fY();
ws.z2= frontz;
ws.z1= backz;
// Step1: Draw a stencil into the gap
SetupFloodStencil(&ws);
// Step2: Project the ceiling plane into the gap
DrawFloodedPlane(&ws, ws.z1, fakebsector, false);
// Step3: Delete the stencil
ClearFloodStencil(&ws);
}