diff --git a/source/core/coreactor.h b/source/core/coreactor.h
index bf2fef33d..478648c9a 100644
--- a/source/core/coreactor.h
+++ b/source/core/coreactor.h
@@ -176,6 +176,11 @@ public:
 		return opos.plusZ(oviewzoffset);
 	}
 
+	DVector3 getRenderPos(const double interpfrac)
+	{
+		return interpolatedpos(interpfrac).plusZ(interpolatedvalue(oviewzoffset, viewzoffset, interpfrac));
+	}
+
 	sectortype* sector() const
 	{
 		return spr.sectp;
diff --git a/source/games/duke/src/render.cpp b/source/games/duke/src/render.cpp
index 7108f403a..ad0b4f2f9 100644
--- a/source/games/duke/src/render.cpp
+++ b/source/games/duke/src/render.cpp
@@ -293,7 +293,7 @@ void displayrooms(int snum, double interpfrac, bool sceneonly)
 		}
 		else
 		{
-			cpos = viewer->interpolatedpos(interpfrac).plusZ(viewer->viewzoffset);
+			cpos = viewer->getRenderPos(interpfrac);
 
 			if (SyncInput())
 			{