diff --git a/source/core/rendering/hw_entrypoint.cpp b/source/core/rendering/hw_entrypoint.cpp
index d8325cf61..2496a1f42 100644
--- a/source/core/rendering/hw_entrypoint.cpp
+++ b/source/core/rendering/hw_entrypoint.cpp
@@ -275,7 +275,7 @@ static void CheckTimer(FRenderState &state, uint64_t ShaderStartTime)
 
 void animatecamsprite(double s);
 
-void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, binangle angle, fixedhoriz horizon, binangle rollang)
+void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, binangle angle, fixedhoriz horizon, binangle rollang, double smoothratio)
 {
 	checkRotatedWalls();
 
@@ -295,7 +295,7 @@ void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sect
 	// Get this before everything else
 	FRenderViewpoint r_viewpoint = SetupViewpoint(playersprite, position, sectnum, angle, horizon, rollang);
 	if (cl_capfps) r_viewpoint.TicFrac = 1.;
-	else r_viewpoint.TicFrac = I_GetTimeFrac();
+	else r_viewpoint.TicFrac = smoothratio * (1/65536.);
 
 	screen->mLights->Clear();
 	screen->mViewpoints->Clear();
diff --git a/source/core/rendering/render.h b/source/core/rendering/render.h
index 1214f4f8b..256b65747 100644
--- a/source/core/rendering/render.h
+++ b/source/core/rendering/render.h
@@ -4,7 +4,7 @@
 class FSerializer;
 struct IntRect;
 
-void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, binangle angle, fixedhoriz horizon, binangle rollang);
+void render_drawrooms(spritetype* playersprite, const vec3_t& position, int sectnum, binangle angle, fixedhoriz horizon, binangle rollang, double smoothratio);
 void render_camtex(spritetype* playersprite, const vec3_t& position, int sectnum, binangle angle, fixedhoriz horizon, binangle rollang, FGameTexture* camtex, IntRect& rect, double smoothratio);
 
 struct PortalDesc
diff --git a/source/games/blood/src/view.cpp b/source/games/blood/src/view.cpp
index 7ec536e65..d6ee63a39 100644
--- a/source/games/blood/src/view.cpp
+++ b/source/games/blood/src/view.cpp
@@ -772,7 +772,7 @@ void viewDrawScreen(bool sceneonly)
             fixedhoriz deliriumPitchI = q16horiz(interpolatedvalue(IntToFixed(deliriumPitchO), IntToFixed(deliriumPitch), gInterpolate));
             int bakCstat = gView->pSprite->cstat;
             gView->pSprite->cstat |= (gViewPos == 0) ? CSTAT_SPRITE_INVISIBLE : CSTAT_SPRITE_TRANSLUCENT | CSTAT_SPRITE_TRANSLUCENT_INVERT;
-            render_drawrooms(gView->pSprite, { cX, cY, cZ }, nSectnum, cA, cH + deliriumPitchI, rotscrnang);
+            render_drawrooms(gView->pSprite, { cX, cY, cZ }, nSectnum, cA, cH + deliriumPitchI, rotscrnang, gInterpolate);
             gView->pSprite->cstat = bakCstat;
         }
         else
diff --git a/source/games/duke/src/render.cpp b/source/games/duke/src/render.cpp
index ccf06ee47..c3e11f45b 100644
--- a/source/games/duke/src/render.cpp
+++ b/source/games/duke/src/render.cpp
@@ -83,7 +83,7 @@ void renderView(spritetype* playersprite, int sectnum, int x, int y, int z, bina
 	}
 	else
 	{
-		render_drawrooms(playersprite, { x, y, z }, sectnum, a, h, rotscrnang);
+		render_drawrooms(playersprite, { x, y, z }, sectnum, a, h, rotscrnang, smoothratio);
 	}
 }
 
diff --git a/source/games/exhumed/src/view.cpp b/source/games/exhumed/src/view.cpp
index 165dd7092..0c499d47a 100644
--- a/source/games/exhumed/src/view.cpp
+++ b/source/games/exhumed/src/view.cpp
@@ -367,7 +367,7 @@ void DrawView(double smoothRatio, bool sceneonly)
         }
         else
         {
-            render_drawrooms(nullptr, { nCamerax, nCameray, viewz }, nSector, nCameraa, nCamerapan, rotscrnang);
+            render_drawrooms(nullptr, { nCamerax, nCameray, viewz }, nSector, nCameraa, nCamerapan, rotscrnang, smoothRatio);
         }
 
         if (HavePLURemap())
diff --git a/source/games/sw/src/draw.cpp b/source/games/sw/src/draw.cpp
index d3c71e83e..a89eba696 100644
--- a/source/games/sw/src/draw.cpp
+++ b/source/games/sw/src/draw.cpp
@@ -1615,7 +1615,7 @@ drawscreen(PLAYERp pp, double smoothratio)
     else
     {
         UpdateWallPortalState();
-        render_drawrooms(pp->SpriteP, { tx, ty, tz }, tsectnum, tang, thoriz, trotscrnang);
+        render_drawrooms(pp->SpriteP, { tx, ty, tz }, tsectnum, tang, thoriz, trotscrnang, smoothratio);
         RestorePortalState();
     }