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- Fix mid texture rendering for self-referencing sector lines

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Magnus Norddahl 2018-04-05 01:40:58 +02:00
parent b6f184491b
commit b1d33d1bba
1 changed files with 26 additions and 14 deletions
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40
src/swrenderer/line/r_renderdrawsegment.cpp
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@ -264,28 +264,40 @@ namespace swrenderer
WallC.sx1 = ds->sx1;
WallC.sx2 = ds->sx2;
double top, bot;
GetMaskedWallTopBottom(ds, top, bot);
top -= Thread->Viewport->viewpoint.Pos.Z;
bot -= Thread->Viewport->viewpoint.Pos.Z;
// Unclipped vanilla Doom range for the wall. Relies on ceiling/floor clip to clamp the wall in range.
double ceilZ = textop;
double floorZ = textop - texheight;
// The 3D Floors implementation destroys the ceiling clip when doing its height passes..
if (m3DFloor.clipTop || m3DFloor.clipBottom)
{
// Use the actual correct wall range for the midtexture.
// This doesn't work for self-referenced sectors, which is why we only do it if we have 3D floors.
double top, bot;
GetMaskedWallTopBottom(ds, top, bot);
top -= Thread->Viewport->viewpoint.Pos.Z;
bot -= Thread->Viewport->viewpoint.Pos.Z;
ceilZ = MIN(ceilZ, top);
floorZ = MAX(floorZ, bot);
}
// Clip wall by the current 3D floor render range.
if (m3DFloor.clipTop)
{
wallupper.Project(Thread->Viewport.get(), textop < m3DFloor.sclipTop - Thread->Viewport->viewpoint.Pos.Z ? textop : m3DFloor.sclipTop - Thread->Viewport->viewpoint.Pos.Z, &WallC);
}
else
{
wallupper.Project(Thread->Viewport.get(), MIN(textop, top), &WallC);
double clipZ = m3DFloor.sclipTop - Thread->Viewport->viewpoint.Pos.Z;
ceilZ = MIN(ceilZ, clipZ);
}
if (m3DFloor.clipBottom)
{
walllower.Project(Thread->Viewport.get(), textop - texheight > m3DFloor.sclipBottom - Thread->Viewport->viewpoint.Pos.Z ? textop - texheight : m3DFloor.sclipBottom - Thread->Viewport->viewpoint.Pos.Z, &WallC);
}
else
{
walllower.Project(Thread->Viewport.get(), MAX(textop - texheight, bot), &WallC);
double clipZ = m3DFloor.sclipBottom - Thread->Viewport->viewpoint.Pos.Z;
floorZ = MAX(floorZ, clipZ);
}
wallupper.Project(Thread->Viewport.get(), ceilZ, &WallC);
walllower.Project(Thread->Viewport.get(), floorZ, &WallC);
for (int i = x1; i < x2; i++)
{
if (wallupper.ScreenY[i] < mceilingclip[i])