From cc852ef0fe72dd13ea7e254b7a5018ad9899919f Mon Sep 17 00:00:00 2001
From: spherallic <spherallic@gmail.com>
Date: Thu, 29 Jun 2023 11:46:12 +0200
Subject: [PATCH] Fix Y scaling on 2-sided midtextures in OpenGL
---
src/hardware/hw_main.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index a8992a28d6..2db1099210 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -1272,6 +1272,7 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
if (gl_midtexture && HWR_BlendMidtextureSurface(&Surf))
{
sector_t *front, *back;
+ fixed_t texheight = FixedDiv(textureheight[gl_midtexture], gl_sidedef->scaley_mid);
INT32 repeats;
if (gl_linedef->frontsector->heightsec != -1)
@@ -1300,8 +1301,8 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
else
low = back->floorheight;
- repeats = (high - low) / textureheight[gl_midtexture];
- if ((high - low) % textureheight[gl_midtexture])
+ repeats = (high - low) / texheight;
+ if ((high - low) % texheight)
repeats++; // tile an extra time to fill the gap -- Monster Iestyn
}
else
@@ -1324,7 +1325,7 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
popenbottom = popenbottomslope = back->floorheight;
}
else
- {
+ {
popentop = min(worldtop, worldhigh);
popenbottom = max(worldbottom, worldlow);
popentopslope = min(worldtopslope, worldhighslope);
@@ -1332,7 +1333,7 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
}
// Find the wall's coordinates
- fixed_t midtexheight = textureheight[gl_midtexture] * repeats;
+ fixed_t midtexheight = texheight * repeats;
// Texture is not skewed
if (gl_linedef->flags & ML_NOSKEW)
--
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