From a04fcce3a998025b765a567791595b3129ae414d Mon Sep 17 00:00:00 2001
From: Monster Iestyn <iestynjealous@ntlworld.com>
Date: Thu, 9 Jun 2016 22:07:43 +0100
Subject: [PATCH] Hack to fix midtextures for polyobjects being mucked up
"frontsector" in this part of the code isn't actually the polyobject's sector for back-side polyobject segs, it's the in-level sector the polyobject as a whole is being rendered in it turns out.
---
src/r_segs.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/r_segs.c b/src/r_segs.c
index a2487771be..07fe554c24 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -2483,6 +2483,15 @@ void R_StoreWallRange(INT32 start, INT32 stop)
#ifdef ESLOPE
maskedtextureheight = ds_p->maskedtextureheight; // note to red, this == &(ds_p->maskedtextureheight[0])
+#ifdef POLYOBJECTS
+ if (curline->polyseg) { // use REAL front and back floors please, so midtexture rendering isn't mucked up
+ rw_midtextureslide = rw_midtexturebackslide = 0;
+ if (!!(linedef->flags & ML_DONTPEGBOTTOM) ^ !!(linedef->flags & ML_EFFECT3))
+ rw_midtexturemid = rw_midtextureback = max(curline->frontsector->floorheight, curline->backsector->floorheight) - viewz;
+ else
+ rw_midtexturemid = rw_midtextureback = min(curline->frontsector->ceilingheight, curline->backsector->ceilingheight) - viewz;
+ } else
+#endif
// Set midtexture starting height
if (linedef->flags & ML_EFFECT2) { // Ignore slopes when texturing
rw_midtextureslide = rw_midtexturebackslide = 0;
--
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