From 22d6e3f2f6b7370296bd7a1cf653118001bd24dd Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sun, 29 May 2022 23:20:09 +0200
Subject: [PATCH] - SW: added interpolation for sine wave floors.

---
 source/games/sw/src/sector.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/games/sw/src/sector.cpp b/source/games/sw/src/sector.cpp
index 486040270..8d20598e0 100644
--- a/source/games/sw/src/sector.cpp
+++ b/source/games/sw/src/sector.cpp
@@ -472,6 +472,8 @@ void SectorSetup(void)
 
             // set the first on up
             swf = &SineWaveFloor[NextSineWave][swf_ndx];
+            if (tag != TAG_SINE_WAVE_CEILING) StartInterpolation(sectp, Interp_Sect_Floorz);
+            if (tag != TAG_SINE_WAVE_FLOOR) StartInterpolation(sectp, Interp_Sect_Ceilingz);
 
             swf->flags = 0;