diff --git a/src/playsim/a_decals.cpp b/src/playsim/a_decals.cpp
index fc712a5d8..1eb5a588e 100644
--- a/src/playsim/a_decals.cpp
+++ b/src/playsim/a_decals.cpp
@@ -830,14 +830,23 @@ DBaseDecal *DImpactDecal::CloneSelf (const FDecalTemplate *tpl, double ix, doubl
 //
 //----------------------------------------------------------------------------
 
-void SprayDecal(AActor *shooter, const char *name, double distance)
+void SprayDecal(AActor *shooter, const char *name, double distance, double DirX, double DirY, double DirZ)
 {
 	FTraceResults trace;
-
-	DAngle ang = shooter->Angles.Yaw;
-	DAngle pitch = shooter->Angles.Pitch;
-	double c = pitch.Cos();
-	DVector3 vec(c * ang.Cos(), c * ang.Sin(), -pitch.Sin());
+	DVector3 vec;
+	//use new behavior only if directional vector not equal to zero vector
+	if (DirX != 0 || DirY != 0 || DirZ != 0)
+	{
+		vec = DVector3(DirX, DirY, DirZ);
+	}
+	
+	else
+	{
+		DAngle ang = shooter->Angles.Yaw;
+		DAngle pitch = shooter->Angles.Pitch;
+		double c = pitch.Cos();
+		vec = DVector3(c * ang.Cos(), c * ang.Sin(), -pitch.Sin());
+	}
 
 	if (Trace(shooter->PosPlusZ(shooter->Height / 2), shooter->Sector, vec, distance, 0, ML_BLOCKEVERYTHING, shooter, trace, TRACE_NoSky))
 	{
diff --git a/src/playsim/a_sharedglobal.h b/src/playsim/a_sharedglobal.h
index 9396b10a8..1246255ea 100644
--- a/src/playsim/a_sharedglobal.h
+++ b/src/playsim/a_sharedglobal.h
@@ -12,7 +12,7 @@ class DBaseDecal;
 struct SpreadInfo;
 
 DBaseDecal *ShootDecal(FLevelLocals *Level, const FDecalTemplate *tpl, sector_t *sec, double x, double y, double z, DAngle angle, double tracedist, bool permanent);
-void SprayDecal(AActor *shooter, const char *name,double distance = 172.);
+void SprayDecal(AActor *shooter, const char *name,double distance = 172., double DirX = 0., double DirY = 0., double DirZ = 0.);
 
 class DBaseDecal : public DThinker
 {
diff --git a/src/playsim/p_actionfunctions.cpp b/src/playsim/p_actionfunctions.cpp
index 78dce5852..047aed2a5 100644
--- a/src/playsim/p_actionfunctions.cpp
+++ b/src/playsim/p_actionfunctions.cpp
@@ -4917,7 +4917,10 @@ DEFINE_ACTION_FUNCTION(AActor, A_SprayDecal)
 	PARAM_SELF_PROLOGUE(AActor);
 	PARAM_STRING(name);
 	PARAM_FLOAT(dist);
-	SprayDecal(self, name, dist);
+	PARAM_FLOAT(DirX);
+	PARAM_FLOAT(DirY);
+	PARAM_FLOAT(DirZ);
+	SprayDecal(self, name, dist, DirX, DirY, DirZ);
 	return 0;
 }
 
diff --git a/wadsrc/static/zscript/actors/actor.zs b/wadsrc/static/zscript/actors/actor.zs
index 27a929fdd..28dd0b295 100644
--- a/wadsrc/static/zscript/actors/actor.zs
+++ b/wadsrc/static/zscript/actors/actor.zs
@@ -1157,7 +1157,7 @@ class Actor : Thinker native
 	native bool A_SetVisibleRotation(double anglestart = 0, double angleend = 0, double pitchstart = 0, double pitchend = 0, int flags = 0, int ptr = AAPTR_DEFAULT);
 	native void A_SetTranslation(name transname);
 	native bool A_SetSize(double newradius = -1, double newheight = -1, bool testpos = false);
-	native void A_SprayDecal(String name, double dist = 172);
+	native void A_SprayDecal(String name, double dist = 172, double DirX = 0, double DirY = 0, double DirZ = 0);
 	native void A_SetMugshotState(String name);
 	native void CopyBloodColor(Actor other);