diff --git a/source/blood/src/common_game.h b/source/blood/src/common_game.h
index 99751eedd..d64d69c7a 100644
--- a/source/blood/src/common_game.h
+++ b/source/blood/src/common_game.h
@@ -658,6 +658,11 @@ inline int interpolate(int a, int b, int c)
     return a+mulscale16(b-a,c);
 }
 
+inline double finterpolate(double a, double b, double c)
+{
+    return a+fmulscale16(b-a,c);
+}
+
 inline int interpolateang(int a, int b, int c)
 {
     return a+mulscale16(((b-a+1024)&2047)-1024, c);
diff --git a/source/blood/src/hudsprites.cpp b/source/blood/src/hudsprites.cpp
index bb4e063a4..20e21906d 100644
--- a/source/blood/src/hudsprites.cpp
+++ b/source/blood/src/hudsprites.cpp
@@ -95,7 +95,7 @@ static void viewBurnTime(int gScale)
 }
 
 
-void hudDraw(PLAYER *gView, int nSectnum, int defaultHoriz, int bobx, int boby, int zDelta, int basepal)
+void hudDraw(PLAYER *gView, int nSectnum, int defaultHoriz, double bobx, double boby, int zDelta, int basepal)
 {
 	if (gViewPos == 0)
 	{
diff --git a/source/blood/src/view.cpp b/source/blood/src/view.cpp
index 6a1d60caf..12dd88191 100644
--- a/source/blood/src/view.cpp
+++ b/source/blood/src/view.cpp
@@ -64,7 +64,7 @@ struct INTERPOLATE {
 int gViewMode = 3;
 int gViewSize = 2;
 
-int gInterpolate;
+double gInterpolate;
 int nInterpolations;
 char gInterpolateSprite[(kMaxSprites+7)>>3];
 char gInterpolateWall[(kMaxWalls+7)>>3];
@@ -779,8 +779,8 @@ void viewDrawScreen(bool sceneonly)
         fix16_t q16slopehoriz = gView->q16slopehoriz;
         int v74 = gView->bobWidth;
         int v8c = gView->bobHeight;
-        int v4c = gView->swayWidth;
-        int v48 = gView->swayHeight;
+        double v4c = gView->swayWidth;
+        double v48 = gView->swayHeight;
         int nSectnum = gView->pSprite->sectnum;
         if (cl_interpolate)
         {
@@ -796,8 +796,8 @@ void viewDrawScreen(bool sceneonly)
                 q16slopehoriz = interpolate(predictOld.at28, predict.at28, gInterpolate);
                 v74 = interpolate(predictOld.atc, predict.atc, gInterpolate);
                 v8c = interpolate(predictOld.at8, predict.at8, gInterpolate);
-                v4c = interpolate(predictOld.at1c, predict.at1c, gInterpolate);
-                v48 = interpolate(predictOld.at18, predict.at18, gInterpolate);
+                v4c = finterpolate(predictOld.at1c, predict.at1c, gInterpolate);
+                v48 = finterpolate(predictOld.at18, predict.at18, gInterpolate);
             }
             else
             {
@@ -811,8 +811,8 @@ void viewDrawScreen(bool sceneonly)
                 q16slopehoriz = interpolate(pView->at28, q16slopehoriz, gInterpolate);
                 v74 = interpolate(pView->atc, v74, gInterpolate);
                 v8c = interpolate(pView->at8, v8c, gInterpolate);
-                v4c = interpolate(pView->at1c, v4c, gInterpolate);
-                v48 = interpolate(pView->at18, v48, gInterpolate);
+                v4c = finterpolate(pView->at1c, v4c, gInterpolate);
+                v48 = finterpolate(pView->at18, v48, gInterpolate);
             }
         }
         if (gView == gMe && (numplayers <= 1 || gPrediction) && gView->pXSprite->health != 0 && !VanillaMode())
diff --git a/source/blood/src/view.h b/source/blood/src/view.h
index 78e2f0eb0..2fc07cdaa 100644
--- a/source/blood/src/view.h
+++ b/source/blood/src/view.h
@@ -145,9 +145,9 @@ extern int gViewXCenter, gViewYCenter;
 extern int gViewX0, gViewY0, gViewX1, gViewY1;
 extern int gViewX0S, gViewY0S, gViewX1S, gViewY1S;
 extern int gLastPal;
-extern int gInterpolate;
+extern double gInterpolate;
 
-void hudDraw(PLAYER* gView, int nSectnum, int defaultHoriz, int bobx, int boby, int zDelta, int basepal);
+void hudDraw(PLAYER* gView, int nSectnum, int defaultHoriz, double bobx, double boby, int zDelta, int basepal);
 void viewToggle(int viewMode);
 void viewInitializePrediction(void);
 void viewUpdatePrediction(GINPUT *pInput);