diff --git a/src/playsim/a_dynlight.cpp b/src/playsim/a_dynlight.cpp
index 98d105acb..b274d63c6 100644
--- a/src/playsim/a_dynlight.cpp
+++ b/src/playsim/a_dynlight.cpp
@@ -256,7 +256,7 @@ void FDynamicLight::Tick()
 
 	if (owned)
 	{
-		if (!target->state)
+		if (!target->state || !target->ShouldRenderLocally())
 		{
 			Deactivate();
 			return;
diff --git a/src/playsim/actor.h b/src/playsim/actor.h
index b51cee366..ca7c1d7f9 100644
--- a/src/playsim/actor.h
+++ b/src/playsim/actor.h
@@ -501,6 +501,7 @@ enum ActorRenderFlag2
 	RF2_FLIPSPRITEOFFSETX		= 0x0010,
 	RF2_FLIPSPRITEOFFSETY		= 0x0020,
 	RF2_CAMFOLLOWSPLAYER		= 0x0040,	// Matches the cam's base position and angles to the main viewpoint.
+	RF2_NOMIPMAP				= 0x0080,	// [Nash] forces no mipmapping on sprites. Useful for tiny sprites that need to remain visually crisp
 };
 
 // This translucency value produces the closest match to Heretic's TINTTAB.
diff --git a/src/playsim/dthinker.cpp b/src/playsim/dthinker.cpp
index 3214decf3..4229de792 100644
--- a/src/playsim/dthinker.cpp
+++ b/src/playsim/dthinker.cpp
@@ -132,7 +132,7 @@ void FThinkerCollection::RunThinkers(FLevelLocals *Level)
 				if (dolights) ac->SetDynamicLights();
 			}
 			// This was merged from P_RunEffects to eliminate the costly duplicate ThinkerIterator loop.
-			if ((ac->effects || ac->fountaincolor) && !Level->isFrozen())
+			if ((ac->effects || ac->fountaincolor) && ac->ShouldRenderLocally() && !Level->isFrozen())
 			{
 				P_RunEffect(ac, ac->effects);
 			}
diff --git a/src/playsim/p_effect.h b/src/playsim/p_effect.h
index 29f1cb720..5eafdcd4b 100644
--- a/src/playsim/p_effect.h
+++ b/src/playsim/p_effect.h
@@ -69,6 +69,7 @@ enum EParticleFlags
 	SPF_FACECAMERA				= 1 << 11,
 	SPF_NOFACECAMERA			= 1 << 12,
 	SPF_ROLLCENTER				= 1 << 13,
+	SPF_NOMIPMAP				= 1 << 14,
 };
 
 class DVisualThinker;
diff --git a/src/rendering/hwrenderer/scene/hw_drawstructs.h b/src/rendering/hwrenderer/scene/hw_drawstructs.h
index 00706f81e..fa0f098ea 100644
--- a/src/rendering/hwrenderer/scene/hw_drawstructs.h
+++ b/src/rendering/hwrenderer/scene/hw_drawstructs.h
@@ -411,6 +411,7 @@ public:
 	TArray<lightlist_t> *lightlist;
 	DRotator Angles;
 
+	bool nomipmap; // force the sprite to have no mipmaps (ensures tiny sprites in the distance stay crisp)
 
 	void SplitSprite(HWDrawInfo *di, FRenderState& state, sector_t * frontsector, bool translucent);
 	void PerformSpriteClipAdjustment(AActor *thing, const DVector2 &thingpos, float spriteheight);
diff --git a/src/rendering/hwrenderer/scene/hw_sprites.cpp b/src/rendering/hwrenderer/scene/hw_sprites.cpp
index 68ea7bf7e..3f84c6982 100644
--- a/src/rendering/hwrenderer/scene/hw_sprites.cpp
+++ b/src/rendering/hwrenderer/scene/hw_sprites.cpp
@@ -224,8 +224,10 @@ void HWSprite::DrawSprite(HWDrawInfo *di, FRenderState &state, bool translucent)
 		state.SetFog(0, 0);
 	}
 
+	int clampmode = nomipmap ? CLAMP_XY_NOMIP : CLAMP_XY;
+
 	uint32_t spritetype = actor? uint32_t(actor->renderflags & RF_SPRITETYPEMASK) : 0;
-	if (texture) state.SetMaterial(texture, UF_Sprite, (spritetype == RF_FACESPRITE) ? CTF_Expand : 0, CLAMP_XY, translation, OverrideShader);
+	if (texture) state.SetMaterial(texture, UF_Sprite, (spritetype == RF_FACESPRITE) ? CTF_Expand : 0, clampmode, translation, OverrideShader);
 	else if (!modelframe) state.EnableTexture(false);
 
 	//SetColor(lightlevel, rel, Colormap, trans);
@@ -834,6 +836,8 @@ void HWSprite::Process(HWDrawInfo *di, FRenderState& state, AActor* thing, secto
 			return;
 	}
 
+	nomipmap = (thing->renderflags2 & RF2_NOMIPMAP);
+
 	// check renderrequired vs ~r_rendercaps, if anything matches we don't support that feature,
 	// check renderhidden vs r_rendercaps, if anything matches we do support that feature and should hide it.
 	if ((!r_debug_disable_vis_filter && !!(thing->RenderRequired & ~r_renderercaps)) ||
@@ -1377,6 +1381,7 @@ void HWSprite::ProcessParticle(HWDrawInfo *di, FRenderState& state, particle_t *
 	actor = nullptr;
 	this->particle = particle;
 	fullbright = particle->flags & SPF_FULLBRIGHT;
+	nomipmap = particle->flags & SPF_NOMIPMAP;
 
 	if (di->isFullbrightScene()) 
 	{
diff --git a/src/scripting/thingdef_data.cpp b/src/scripting/thingdef_data.cpp
index 997ab78b1..570dd2a4e 100644
--- a/src/scripting/thingdef_data.cpp
+++ b/src/scripting/thingdef_data.cpp
@@ -384,6 +384,7 @@ static FFlagDef ActorFlagDefs[]=
 	DEFINE_FLAG(RF2, FLIPSPRITEOFFSETX, AActor, renderflags2),
 	DEFINE_FLAG(RF2, FLIPSPRITEOFFSETY, AActor, renderflags2),
 	DEFINE_FLAG(RF2, CAMFOLLOWSPLAYER, AActor, renderflags2),
+	DEFINE_FLAG(RF2, NOMIPMAP, AActor, renderflags2),
 
 	// Bounce flags
 	DEFINE_FLAG2(BOUNCE_Walls, BOUNCEONWALLS, AActor, BounceFlags),
diff --git a/wadsrc/static/zscript/constants.zs b/wadsrc/static/zscript/constants.zs
index 38481ba55..38bf37a65 100644
--- a/wadsrc/static/zscript/constants.zs
+++ b/wadsrc/static/zscript/constants.zs
@@ -718,6 +718,7 @@ enum EParticleFlags
 	SPF_FACECAMERA				= 1 << 11,
 	SPF_NOFACECAMERA			= 1 << 12,
 	SPF_ROLLCENTER				= 1 << 13,
+	SPF_NOMIPMAP				= 1 << 14,
 
 	SPF_RELATIVE				= SPF_RELPOS|SPF_RELVEL|SPF_RELACCEL|SPF_RELANG
 };