diff --git a/include/functions.h b/include/functions.h
index a105a46b9a..3a7ce33825 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -1606,7 +1606,7 @@ LightNode* Lights_FindBufSlot();
 void Lights_FreeNode(LightNode* light);
 void LightContext_Init(PlayState* play, LightContext* lightCtx);
 void LightContext_SetAmbientColor(LightContext* lightCtx, u8 r, u8 g, u8 b);
-void func_80102544(LightContext* lightCtx, u8 a1, u8 a2, u8 a3, s16 numLights, s16 sp16);
+void LightContext_SetFogProperties(LightContext* lightCtx, u8 r, u8 g, u8 b, s16 near, s16 far);
 Lights* LightContext_NewLights(LightContext* lightCtx, GraphicsContext* gfxCtx);
 void LightContext_InitList(PlayState* play, LightContext* lightCtx);
 void LightContext_DestroyList(PlayState* play, LightContext* lightCtx);
@@ -2444,8 +2444,8 @@ void func_80165438(UNK_PTR param_1);
 // void Play_DrawMotionBlur(void);
 // void Play_InitMotionBlur(void);
 // void Play_DestroyMotionBlur(void);
-void Play_SetMotionBlurAlpha(u32 motionBlurAlpha);
-void Play_EnableMotionBlur(u32 motionBlurAlpha);
+void Play_SetMotionBlurAlpha(u32 alpha);
+void Play_EnableMotionBlur(u32 alpha);
 void Play_DisableMotionBlur(void);
 // void func_801656A4(UNK_TYPE1 param_1, UNK_TYPE1 param_2, UNK_TYPE1 param_3, UNK_TYPE1 param_4, UNK_TYPE4 param_5, UNK_TYPE4 param_6, UNK_TYPE4 param_7, UNK_TYPE4 param_8);
 // void Play_EnableMotionBlurPriority(void);
@@ -2454,7 +2454,7 @@ void Play_DisableMotionBlur(void);
 // void Play_ChooseDynamicTransition(void);
 // void Play_SetupTransition(void);
 // void Play_ClearTransition(void);
-Gfx* func_801660B8(PlayState* this, Gfx* gfx);
+Gfx* Play_SetFog(PlayState* this, Gfx* gfx);
 void Play_Destroy(GameState* thisx);
 // void func_801663C4(void);
 // void func_80166644(void);
diff --git a/include/z64light.h b/include/z64light.h
index df7c1b4fac..ba7fe36845 100644
--- a/include/z64light.h
+++ b/include/z64light.h
@@ -74,11 +74,9 @@ typedef struct LightsBuffer {
 typedef struct LightContext {
     /* 0x0 */ LightNode* listHead;
     /* 0x4 */ Color_RGB8 ambient;
-    /* 0x7 */ u8 unk7;
-    /* 0x8 */ u8 unk8;
-    /* 0x9 */ u8 unk9;
-    /* 0xA */ s16 unkA;
-    /* 0xC */ s16 unkC;
+    /* 0x7 */ Color_RGB8 fogColor;
+    /* 0xA */ s16 fogNear;
+    /* 0xC */ s16 fogFar;
 } LightContext; // size = 0x10
 
 typedef enum LightType {
diff --git a/src/code/z_actor.c b/src/code/z_actor.c
index 7734c4e1bf..a8ef010916 100644
--- a/src/code/z_actor.c
+++ b/src/code/z_actor.c
@@ -2686,7 +2686,7 @@ void Actor_DrawLensActors(PlayState* play, s32 numActors, Actor** actors) {
 
         // spAC = phi_s1;
         Actor_DrawLensOverlay(&spAC, play->actorCtx.lensMaskSize);
-        phi_s1_2 = func_801660B8(play, spAC);
+        phi_s1_2 = Play_SetFog(play, spAC);
 
         for (spB4 = 0; spB4 < numActors; spB4++, actors++) {
             Actor_Draw(play, *actors);
diff --git a/src/code/z_draw.c b/src/code/z_draw.c
index 4167b4cea4..a2686be8e3 100644
--- a/src/code/z_draw.c
+++ b/src/code/z_draw.c
@@ -837,7 +837,7 @@ void GetItem_DrawRemains(PlayState* play, s16 drawId) {
     gSPMatrix(POLY_OPA_DISP++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
     gSPDisplayList(POLY_OPA_DISP++, sDrawItemTable[drawId].drawResources[0]);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     CLOSE_DISPS(play->state.gfxCtx);
 }
diff --git a/src/code/z_eff_ss_dead.c b/src/code/z_eff_ss_dead.c
index b7c6af97e3..6c416e3c85 100644
--- a/src/code/z_eff_ss_dead.c
+++ b/src/code/z_eff_ss_dead.c
@@ -50,7 +50,7 @@ void func_800AE5A0(PlayState* play) {
     OPEN_DISPS(play->state.gfxCtx);
 
     gDPPipeSync(POLY_OPA_DISP++);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     CLOSE_DISPS(play->state.gfxCtx);
 }
@@ -105,7 +105,7 @@ void func_800AE8EC(PlayState* play) {
     OPEN_DISPS(play->state.gfxCtx);
 
     gDPPipeSync(POLY_XLU_DISP++);
-    POLY_XLU_DISP = func_801660B8(play, POLY_XLU_DISP);
+    POLY_XLU_DISP = Play_SetFog(play, POLY_XLU_DISP);
 
     CLOSE_DISPS(play->state.gfxCtx);
 }
diff --git a/src/code/z_en_item00.c b/src/code/z_en_item00.c
index d6ab737c7b..6534aa6a74 100644
--- a/src/code/z_en_item00.c
+++ b/src/code/z_en_item00.c
@@ -819,7 +819,7 @@ void EnItem00_DrawSprite(EnItem00* this, PlayState* play) {
 
     OPEN_DISPS(play->state.gfxCtx);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     if (this->actor.params == ITEM00_NUTS_10) {
         texIndex = 6;
diff --git a/src/code/z_lights.c b/src/code/z_lights.c
index e3e732eb39..62ee0dd688 100644
--- a/src/code/z_lights.c
+++ b/src/code/z_lights.c
@@ -251,7 +251,7 @@ void Lights_FreeNode(LightNode* light) {
 void LightContext_Init(PlayState* play, LightContext* lightCtx) {
     LightContext_InitList(play, lightCtx);
     LightContext_SetAmbientColor(lightCtx, 80, 80, 80);
-    func_80102544(lightCtx, 0, 0, 0, 0x3E4, 0x3200);
+    LightContext_SetFogProperties(lightCtx, 0, 0, 0, 0x3E4, 0x3200);
     bzero(&sLightsBuffer, sizeof(LightsBuffer));
 }
 
@@ -261,12 +261,12 @@ void LightContext_SetAmbientColor(LightContext* lightCtx, u8 r, u8 g, u8 b) {
     lightCtx->ambient.b = b;
 }
 
-void func_80102544(LightContext* lightCtx, u8 a1, u8 a2, u8 a3, s16 numLights, s16 sp16) {
-    lightCtx->unk7 = a1;
-    lightCtx->unk8 = a2;
-    lightCtx->unk9 = a3;
-    lightCtx->unkA = numLights;
-    lightCtx->unkC = sp16;
+void LightContext_SetFogProperties(LightContext* lightCtx, u8 r, u8 g, u8 b, s16 near, s16 far) {
+    lightCtx->fogColor.r = r;
+    lightCtx->fogColor.g = g;
+    lightCtx->fogColor.b = b;
+    lightCtx->fogNear = near;
+    lightCtx->fogFar = far;
 }
 
 /**
diff --git a/src/code/z_play.c b/src/code/z_play.c
index 2115db4e2a..b38cf825f2 100644
--- a/src/code/z_play.c
+++ b/src/code/z_play.c
@@ -387,11 +387,11 @@ void Play_ClearTransition(PlayState* this) {
     this->transitionCtx.transitionType = -1;
 }
 
-Gfx* func_801660B8(PlayState* this, Gfx* gfx) {
-    s32 phi_v1 = this->lightCtx.unkC * (5.0f / 64.0f);
+Gfx* Play_SetFog(PlayState* this, Gfx* gfx) {
+    s32 fogFar = this->lightCtx.fogFar * (5.0f / 64.0f);
 
-    return Gfx_SetFogWithSync(gfx, this->lightCtx.unk7, this->lightCtx.unk8, this->lightCtx.unk9, 0,
-                              this->lightCtx.unkA, (phi_v1 <= 1000) ? 1000 : phi_v1);
+    return Gfx_SetFogWithSync(gfx, this->lightCtx.fogColor.r, this->lightCtx.fogColor.g, this->lightCtx.fogColor.b, 0,
+                              this->lightCtx.fogNear, (fogFar <= 1000) ? 1000 : fogFar);
 }
 
 void Play_Destroy(GameState* thisx) {
@@ -1158,7 +1158,8 @@ void Play_Draw(PlayState* this) {
         if (this->skyboxCtx.skyboxShouldDraw || (this->roomCtx.curRoom.mesh->type0.type == 1)) {
             func_8012CF0C(gfxCtx, 0, 1, 0, 0, 0);
         } else {
-            func_8012CF0C(gfxCtx, 1, 1, this->lightCtx.unk7, this->lightCtx.unk8, this->lightCtx.unk9);
+            func_8012CF0C(gfxCtx, 1, 1, this->lightCtx.fogColor.r, this->lightCtx.fogColor.g,
+                          this->lightCtx.fogColor.b);
         }
     } else {
         func_8012CF0C(gfxCtx, 0, 0, 0, 0, 0);
@@ -1184,11 +1185,11 @@ void Play_Draw(PlayState* this) {
 
     ShrinkWindow_Draw(gfxCtx);
 
-    POLY_OPA_DISP = func_801660B8(this, POLY_OPA_DISP);
-    POLY_XLU_DISP = func_801660B8(this, POLY_XLU_DISP);
+    POLY_OPA_DISP = Play_SetFog(this, POLY_OPA_DISP);
+    POLY_XLU_DISP = Play_SetFog(this, POLY_XLU_DISP);
 
     // fogFar
-    var_fv0 = this->lightCtx.unkC;
+    var_fv0 = this->lightCtx.fogFar;
     if (var_fv0 > 12800.0f) {
         var_fv0 = 12800.0f;
     }
diff --git a/src/code/z_player_lib.c b/src/code/z_player_lib.c
index 6f4198fc79..3a5da948a0 100644
--- a/src/code/z_player_lib.c
+++ b/src/code/z_player_lib.c
@@ -94,7 +94,7 @@ void func_801229A0(PlayState* play, Player* player) {
     OPEN_DISPS(play->state.gfxCtx);
 
     if ((gSaveContext.jinxTimer != 0) || (player->invincibilityTimer > 0)) {
-        POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+        POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     }
 
     CLOSE_DISPS(play->state.gfxCtx);
diff --git a/src/code/z_rcp.c b/src/code/z_rcp.c
index 8ece56e359..a56d25d85b 100644
--- a/src/code/z_rcp.c
+++ b/src/code/z_rcp.c
@@ -777,19 +777,19 @@ Gfx* Gfx_SetFog(Gfx* gfx, s32 r, s32 g, s32 b, s32 a, s32 n, s32 f) {
 
     if (n >= 997) {
         if (n >= 1000) {
-            gSPFogFactor(gfx + 1, 0, 0); // gSPFogPosition(gfx++, ?, ?)
+            gSPFogFactor(&gfx[1], 0, 0); // gSPFogPosition(gfx++, ?, ?)
         } else {
-            gSPFogFactor(gfx + 1, 0x7FFF, 0x8100); // gSPFogPosition(gfx++, ?, ?)
+            gSPFogFactor(&gfx[1], 0x7FFF, 0x8100); // gSPFogPosition(gfx++, ?, ?)
         }
     } else {
         if (n < 0) {
-            gSPFogFactor(gfx + 1, 0, 255); // gSPFogPosition(gfx++, ?, ?)
+            gSPFogFactor(&gfx[1], 0, 255); // gSPFogPosition(gfx++, ?, ?)
         } else {
-            gSPFogPosition(gfx + 1, n, f);
+            gSPFogPosition(&gfx[1], n, f);
         }
     }
 
-    return gfx + 2;
+    return &gfx[2];
 }
 
 Gfx* Gfx_SetFogWithSync(Gfx* gfx, s32 r, s32 g, s32 b, s32 a, s32 n, s32 f) {
diff --git a/src/overlays/actors/ovl_Boss_02/z_boss_02.c b/src/overlays/actors/ovl_Boss_02/z_boss_02.c
index 19d4731747..61c2445bf5 100644
--- a/src/overlays/actors/ovl_Boss_02/z_boss_02.c
+++ b/src/overlays/actors/ovl_Boss_02/z_boss_02.c
@@ -1392,7 +1392,7 @@ void Boss02_Twinmold_Draw(Actor* thisx, PlayState* play2) {
     }
 
     SkelAnime_DrawOpa(play, this->skelAnime.skeleton, this->skelAnime.jointTable, NULL, NULL, &this->actor);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     spA4 = 0.0f;
     spA0 = 0.0f;
@@ -1427,7 +1427,7 @@ void Boss02_Twinmold_Draw(Actor* thisx, PlayState* play2) {
             if (sp98 < this->unk_01BC[phi_v0].y) {
                 gSPDisplayList(POLY_OPA_DISP++, D_809DFA9C[i]);
             }
-            POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+            POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
         }
 
         if (i == 21) {
diff --git a/src/overlays/actors/ovl_Boss_03/z_boss_03.c b/src/overlays/actors/ovl_Boss_03/z_boss_03.c
index 6eedc24442..00c147b355 100644
--- a/src/overlays/actors/ovl_Boss_03/z_boss_03.c
+++ b/src/overlays/actors/ovl_Boss_03/z_boss_03.c
@@ -2274,7 +2274,7 @@ void Boss03_Draw(Actor* thisx, PlayState* play) {
         Matrix_Translate(0.0f, -600.0f, 0.0f, MTXMODE_APPLY);
         SkelAnime_DrawFlexOpa(play, this->skelAnime.skeleton, this->skelAnime.jointTable, this->skelAnime.dListCount,
                               Boss03_OverrideLimbDraw, Boss03_PostLimbDraw, &this->actor);
-        POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+        POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     }
 
     this->unk_2BC = 0;
diff --git a/src/overlays/actors/ovl_Boss_04/z_boss_04.c b/src/overlays/actors/ovl_Boss_04/z_boss_04.c
index bdbd137fff..8eef7f8e2a 100644
--- a/src/overlays/actors/ovl_Boss_04/z_boss_04.c
+++ b/src/overlays/actors/ovl_Boss_04/z_boss_04.c
@@ -828,7 +828,7 @@ void Boss04_Draw(Actor* thisx, PlayState* play) {
     SkelAnime_DrawFlexOpa(play, this->skelAnime.skeleton, this->skelAnime.jointTable, this->skelAnime.dListCount,
                           Boss04_OverrideLimbDraw, Boss04_PostLimbDraw, &this->actor);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     if (this->actionFunc != func_809EC568) {
         func_8012C448(play->state.gfxCtx);
diff --git a/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c b/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
index 90ccb1382f..07184a1f0d 100644
--- a/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
+++ b/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
@@ -1024,9 +1024,9 @@ void DmStk_Init(Actor* thisx, PlayState* play) {
         this->deflectCount = 0;
         this->maskType = SK_MASK_TYPE_NORMAL;
         this->animIndex = SK_ANIM_IDLE;
-        this->fogR = play->lightCtx.unk7;
-        this->fogG = play->lightCtx.unk8;
-        this->fogB = play->lightCtx.unk9;
+        this->fogR = play->lightCtx.fogColor.r;
+        this->fogG = play->lightCtx.fogColor.g;
+        this->fogB = play->lightCtx.fogColor.b;
 
         if ((play->sceneId == SCENE_LOST_WOODS) && (gSaveContext.sceneLayer == 1)) {
             this->alpha = 0;
@@ -1594,9 +1594,9 @@ void DmStk_UpdateCutscenes(DmStk* this, PlayState* play) {
             this->fadeInState++;
         }
 
-        this->fogR = play->lightCtx.unk7 * this->fogScale;
-        this->fogG = play->lightCtx.unk8 * this->fogScale;
-        this->fogB = play->lightCtx.unk9 * this->fogScale;
+        this->fogR = play->lightCtx.fogColor.r * this->fogScale;
+        this->fogG = play->lightCtx.fogColor.g * this->fogScale;
+        this->fogB = play->lightCtx.fogColor.b * this->fogScale;
     } else if (this->fadeInState == SK_FADE_IN_STATE_INCREASE_FOG) {
         if (this->fogN < 996) {
             this->fogN += 10;
@@ -1894,7 +1894,7 @@ void DmStk_PostLimbDraw2(PlayState* play, s32 limbIndex, Gfx** dList, Vec3s* rot
                     POLY_OPA_DISP = Gfx_SetFog(POLY_OPA_DISP, this->fogR, this->fogG, this->fogB, this->fogA,
                                                this->fogN, this->fogF);
                     gSPDisplayList(POLY_OPA_DISP++, gSkullKidMajorasMask1DL);
-                    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+                    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
                 } else {
                     gSPDisplayList(POLY_OPA_DISP++, gSkullKidMajorasMask1DL);
                 }
diff --git a/src/overlays/actors/ovl_En_Col_Man/z_en_col_man.c b/src/overlays/actors/ovl_En_Col_Man/z_en_col_man.c
index 0b909d61f3..0b6031227f 100644
--- a/src/overlays/actors/ovl_En_Col_Man/z_en_col_man.c
+++ b/src/overlays/actors/ovl_En_Col_Man/z_en_col_man.c
@@ -244,7 +244,7 @@ void func_80AFE4AC(Actor* thisx, PlayState* play) {
     func_8012C2DC(play->state.gfxCtx);
     func_8012C28C(play->state.gfxCtx);
     OPEN_DISPS(play->state.gfxCtx);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
     gSPSegment(POLY_OPA_DISP++, 0x08, Lib_SegmentedToVirtual(gDropRecoveryHeartTex));
     gSPMatrix(POLY_OPA_DISP++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
@@ -266,7 +266,7 @@ void func_80AFE584(Actor* thisx, PlayState* play) {
 void func_80AFE650(Actor* thisx, PlayState* play) {
     func_8012C28C(play->state.gfxCtx);
     OPEN_DISPS(play->state.gfxCtx);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
     gSPSegment(POLY_OPA_DISP++, 0x08, Lib_SegmentedToVirtual(gDropBombTex));
     gSPMatrix(POLY_OPA_DISP++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
diff --git a/src/overlays/actors/ovl_En_Fall/z_en_fall.c b/src/overlays/actors/ovl_En_Fall/z_en_fall.c
index 1f32b74593..dfe3c3fa2f 100644
--- a/src/overlays/actors/ovl_En_Fall/z_en_fall.c
+++ b/src/overlays/actors/ovl_En_Fall/z_en_fall.c
@@ -784,7 +784,7 @@ void EnFall_LodMoon_Draw(Actor* thisx, PlayState* play) {
     gSPDisplayList(POLY_OPA_DISP++, gLodmoonEyesDL);
     gSPLoadGeometryMode(POLY_OPA_DISP++, G_ZBUFFER | G_SHADE | G_CULL_BACK | G_LIGHTING | G_SHADING_SMOOTH);
     gSPDisplayList(POLY_OPA_DISP++, gLodmoonMoonDL);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     CLOSE_DISPS(play->state.gfxCtx);
 }
diff --git a/src/overlays/actors/ovl_En_Fu/z_en_fu.c b/src/overlays/actors/ovl_En_Fu/z_en_fu.c
index c0be813614..7987bac44a 100644
--- a/src/overlays/actors/ovl_En_Fu/z_en_fu.c
+++ b/src/overlays/actors/ovl_En_Fu/z_en_fu.c
@@ -1448,7 +1448,7 @@ void func_80964950(PlayState* play, EnFuUnkStruct* ptr, s32 len) {
 
     OPEN_DISPS(play->state.gfxCtx);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
 
     for (i = 0; i < len; i++, ptr++) {
diff --git a/src/overlays/actors/ovl_En_Ot/z_en_ot.c b/src/overlays/actors/ovl_En_Ot/z_en_ot.c
index bf93b729fb..ef76189b36 100644
--- a/src/overlays/actors/ovl_En_Ot/z_en_ot.c
+++ b/src/overlays/actors/ovl_En_Ot/z_en_ot.c
@@ -1137,7 +1137,7 @@ void func_80B5E1D8(PlayState* play, EnOtUnkStruct* arg1, s32 arg2) {
 
     OPEN_DISPS(play->state.gfxCtx);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
 
     for (i = 0; i < arg2; i++, arg1++) {
diff --git a/src/overlays/actors/ovl_En_Tanron3/z_en_tanron3.c b/src/overlays/actors/ovl_En_Tanron3/z_en_tanron3.c
index d683cde8ce..15b430c09f 100644
--- a/src/overlays/actors/ovl_En_Tanron3/z_en_tanron3.c
+++ b/src/overlays/actors/ovl_En_Tanron3/z_en_tanron3.c
@@ -458,7 +458,7 @@ void EnTanron3_Draw(Actor* thisx, PlayState* play) {
     }
     SkelAnime_DrawFlexOpa(play, this->skelAnime.skeleton, this->skelAnime.jointTable, this->skelAnime.dListCount,
                           EnTanron3_OverrideLimbDraw, NULL, &this->actor);
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     CLOSE_DISPS(play->state.gfxCtx);
 }
diff --git a/src/overlays/actors/ovl_En_Test6/z_en_test6.c b/src/overlays/actors/ovl_En_Test6/z_en_test6.c
index 46efe4e1a2..ae433012e3 100644
--- a/src/overlays/actors/ovl_En_Test6/z_en_test6.c
+++ b/src/overlays/actors/ovl_En_Test6/z_en_test6.c
@@ -211,7 +211,7 @@ void func_80A90D34(EnTest6* this, PlayState* play, EnTest6Struct* ptr) {
     if (ptr->unk_00 != 0) {
         Matrix_Translate(ptr->unk_08 * ptr->unk_04, ptr->unk_0C, ptr->unk_10 * ptr->unk_04, MTXMODE_NEW);
         Matrix_Scale(ptr->unk_04 * 0.02f, ptr->unk_04 * 0.02f, ptr->unk_04 * 0.02f, MTXMODE_APPLY);
-        POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+        POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
         POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
 
         gSPSegment(POLY_OPA_DISP++, 0x08, Lib_SegmentedToVirtual(D_80A9402C[ptr->unk_00]));
diff --git a/src/overlays/actors/ovl_En_Tg/z_en_tg.c b/src/overlays/actors/ovl_En_Tg/z_en_tg.c
index f4c970ea80..cbbf638640 100644
--- a/src/overlays/actors/ovl_En_Tg/z_en_tg.c
+++ b/src/overlays/actors/ovl_En_Tg/z_en_tg.c
@@ -259,7 +259,7 @@ void EnTg_DrawHearts(PlayState* play, EnTgHeartEffect* effect, s32 numEffects) {
 
     OPEN_DISPS(play->state.gfxCtx);
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     POLY_OPA_DISP = func_8012C724(POLY_OPA_DISP);
 
     for (i = 0; i < numEffects; i++, effect++) {
diff --git a/src/overlays/actors/ovl_En_Water_Effect/z_en_water_effect.c b/src/overlays/actors/ovl_En_Water_Effect/z_en_water_effect.c
index aa36b69472..0da22cb23a 100644
--- a/src/overlays/actors/ovl_En_Water_Effect/z_en_water_effect.c
+++ b/src/overlays/actors/ovl_En_Water_Effect/z_en_water_effect.c
@@ -570,7 +570,7 @@ void func_80A5A184(Actor* thisx, PlayState* play2) {
         }
     }
 
-    POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+    POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
 
     CLOSE_DISPS(gfxCtx);
 }
diff --git a/src/overlays/actors/ovl_En_Zob/z_en_zob.c b/src/overlays/actors/ovl_En_Zob/z_en_zob.c
index 1970e53df2..7d901034d8 100644
--- a/src/overlays/actors/ovl_En_Zob/z_en_zob.c
+++ b/src/overlays/actors/ovl_En_Zob/z_en_zob.c
@@ -769,7 +769,7 @@ void EnZob_Draw(Actor* thisx, PlayState* play) {
                           func_80BA0F64, func_80BA0FAC, &this->actor);
 
     if (this->unk_2F4 & 0x20) {
-        POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+        POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     }
 
     CLOSE_DISPS(play->state.gfxCtx);
diff --git a/src/overlays/actors/ovl_En_Zos/z_en_zos.c b/src/overlays/actors/ovl_En_Zos/z_en_zos.c
index 11fcc25953..04e50e1d6d 100644
--- a/src/overlays/actors/ovl_En_Zos/z_en_zos.c
+++ b/src/overlays/actors/ovl_En_Zos/z_en_zos.c
@@ -761,7 +761,7 @@ void EnZos_Draw(Actor* thisx, PlayState* play) {
                           func_80BBC4E4, func_80BBC500, &this->actor);
 
     if (this->unk_2B6 & 0x40) {
-        POLY_OPA_DISP = func_801660B8(play, POLY_OPA_DISP);
+        POLY_OPA_DISP = Play_SetFog(play, POLY_OPA_DISP);
     }
 
     CLOSE_DISPS(play->state.gfxCtx);
diff --git a/tools/disasm/functions.txt b/tools/disasm/functions.txt
index 4908ea296b..68e94619c2 100644
--- a/tools/disasm/functions.txt
+++ b/tools/disasm/functions.txt
@@ -1881,7 +1881,7 @@
     0x80102464:("Lights_FreeNode",),
     0x801024AC:("LightContext_Init",),
     0x80102518:("LightContext_SetAmbientColor",),
-    0x80102544:("func_80102544",),
+    0x80102544:("LightContext_SetFogProperties",),
     0x80102580:("LightContext_NewLights",),
     0x801025B8:("LightContext_InitList",),
     0x801025C8:("LightContext_DestroyList",),
@@ -2985,7 +2985,7 @@
     0x80165E7C:("Play_ChooseDynamicTransition",),
     0x80165EC0:("Play_SetupTransition",),
     0x80166060:("Play_ClearTransition",),
-    0x801660B8:("func_801660B8",),
+    0x801660B8:("Play_SetFog",),
     0x8016613C:("Play_Destroy",),
     0x801663C4:("func_801663C4",),
     0x80166644:("func_80166644",),
diff --git a/tools/sizes/code_functions.csv b/tools/sizes/code_functions.csv
index b0dde73d76..e72aa7b149 100644
--- a/tools/sizes/code_functions.csv
+++ b/tools/sizes/code_functions.csv
@@ -1395,7 +1395,7 @@ asm/non_matchings/code/z_lights/Lights_FindBufSlot.s,Lights_FindBufSlot,0x801023
 asm/non_matchings/code/z_lights/Lights_FreeNode.s,Lights_FreeNode,0x80102464,0x12
 asm/non_matchings/code/z_lights/LightContext_Init.s,LightContext_Init,0x801024AC,0x1B
 asm/non_matchings/code/z_lights/LightContext_SetAmbientColor.s,LightContext_SetAmbientColor,0x80102518,0xB
-asm/non_matchings/code/z_lights/func_80102544.s,func_80102544,0x80102544,0xF
+asm/non_matchings/code/z_lights/LightContext_SetFogProperties.s,LightContext_SetFogProperties,0x80102544,0xF
 asm/non_matchings/code/z_lights/LightContext_NewLights.s,LightContext_NewLights,0x80102580,0xE
 asm/non_matchings/code/z_lights/LightContext_InitList.s,LightContext_InitList,0x801025B8,0x4
 asm/non_matchings/code/z_lights/LightContext_DestroyList.s,LightContext_DestroyList,0x801025C8,0x17
@@ -2499,7 +2499,7 @@ asm/non_matchings/code/z_play/func_80165E1C.s,func_80165E1C,0x80165E1C,0x18
 asm/non_matchings/code/z_play/Play_ChooseDynamicTransition.s,Play_ChooseDynamicTransition,0x80165E7C,0x11
 asm/non_matchings/code/z_play/Play_SetupTransition.s,Play_SetupTransition,0x80165EC0,0x68
 asm/non_matchings/code/z_play/Play_ClearTransition.s,Play_ClearTransition,0x80166060,0x16
-asm/non_matchings/code/z_play/func_801660B8.s,func_801660B8,0x801660B8,0x21
+asm/non_matchings/code/z_play/Play_SetFog.s,Play_SetFog,0x801660B8,0x21
 asm/non_matchings/code/z_play/Play_Destroy.s,Play_Destroy,0x8016613C,0xA2
 asm/non_matchings/code/z_play/func_801663C4.s,func_801663C4,0x801663C4,0xA0
 asm/non_matchings/code/z_play/func_80166644.s,func_80166644,0x80166644,0x9C