Refactor Interpolation System

6 files changed, 103 insertions, 80 deletions

diff --git a/src/engine/fox_beam.c b/src/engine/fox_beam.c
index ae19d6f7..4006d4dc 100644
--- a/src/engine/fox_beam.c
+++ b/src/engine/fox_beam.c
@@ -1067,6 +1067,8 @@ void PlayerShot_DrawHitmark(PlayerShot* shot) {
             return;
         }
     } else {
+        FrameInterpolation_RecordOpenChild(shot, 1);
+
         shot->obj.rot.y = -gPlayer[gPlayerNum].camYaw;
         Matrix_RotateY(gGfxMatrix, shot->obj.rot.y, MTXF_APPLY);
         Matrix_Scale(gGfxMatrix, 2.0f, 2.0f, 2.0f, MTXF_APPLY);
@@ -1088,6 +1090,8 @@ void PlayerShot_DrawHitmark(PlayerShot* shot) {
                 gSPDisplayList(gMasterDisp++, D_1025800);
                 break;
         }
+
+        FrameInterpolation_RecordCloseChild();
     }
 }
 
@@ -1249,6 +1253,8 @@ void PlayerShot_DrawShot(PlayerShot* shot) {
             Object_Kill(&shot->obj, shot->sfxSource);
         }
     } else {
+        FrameInterpolation_RecordOpenChild(shot, 0);
+        
         if ((shot->obj.id == PLAYERSHOT_TANK) || (shot->obj.id == PLAYERSHOT_ON_FOOT) ||
             (shot->obj.id == PLAYERSHOT_7)) {
             shot->obj.rot.y = RAD_TO_DEG(-gPlayer[gPlayerNum].camYaw);
@@ -1512,12 +1518,11 @@ void PlayerShot_DrawShot(PlayerShot* shot) {
                 gSPDisplayList(gMasterDisp++, D_GREAT_FOX_E00DFB0);
                 break;
         }
+        FrameInterpolation_RecordCloseChild();
     }
 }
 
 void PlayerShot_Draw(PlayerShot* shot) {
-    FrameInterpolation_RecordOpenChild(shot, 0);
-    FrameInterpolation_RecordMarker(__FILE__, __LINE__);
     switch (shot->obj.status) {
         case SHOT_ACTIVE:
             PlayerShot_DrawShot(shot);
@@ -1526,7 +1531,6 @@ void PlayerShot_Draw(PlayerShot* shot) {
             PlayerShot_DrawHitmark(shot);
             break;
     }
-    FrameInterpolation_RecordCloseChild();
 }
 
 void PlayerShot_UpdateHitmark(PlayerShot* shot) {
diff --git a/src/engine/fox_bg.c b/src/engine/fox_bg.c
index 9cdb5f07..06f83608 100644
--- a/src/engine/fox_bg.c
+++ b/src/engine/fox_bg.c
@@ -308,7 +308,6 @@ void Background_DrawStarfield(void) {
                     FrameInterpolation_ShouldInterpolateFrame(false);
                 } else {
                     FrameInterpolation_RecordOpenChild("Starfield", i);
-                    FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                 }
 
                 // Translate to (vx, vy) in ortho coordinates
@@ -442,9 +441,8 @@ void Background_DrawPartialStarfield(s32 yMin, s32 yMax) { // Stars that are in
 
         // Check if the star is within the visible screen area
         if ((vx >= 0) && (vx < currentScreenWidth) && (yMin < vy) && (vy < yMax)) {
-            // Tag the transform. Assuming TAG_STARFIELD is a defined base tag value
-            FrameInterpolation_RecordOpenChild("SmallStarfield", i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+            
+            FrameInterpolation_RecordOpenChild("PartialStarfield", i);
             // Translate to (vx, vy) in ortho coordinates
             Matrix_Push(&gGfxMatrix);
             Matrix_Translate(gGfxMatrix, vx - (currentScreenWidth / 2.0f), -(vy - (currentScreenHeight / 2.0f)), 0.0f,
@@ -551,7 +549,6 @@ void Background_DrawBackdrop(void) {
                         } else {
                             // @port: Tag the transform.
                             FrameInterpolation_RecordOpenChild("Backdrop", i);
-                            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                         }
 
                         switch (gCurrentLevel) {
@@ -627,7 +624,6 @@ void Background_DrawBackdrop(void) {
                         } else {
                             // @port: Tag the transform.
                             FrameInterpolation_RecordOpenChild("Backdrop", i);
-                            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                         }
 
                         switch ((s32) gCurrentLevel) {
@@ -669,7 +665,6 @@ void Background_DrawBackdrop(void) {
                         } else {
                             // @port: Tag the transform.
                             FrameInterpolation_RecordOpenChild("Backdrop", 0);
-                            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                         }
 
                         if ((gDrawBackdrop == 2) || (gDrawBackdrop == 7)) {
@@ -771,7 +766,6 @@ void Background_DrawBackdrop(void) {
                         // Render the textures across the screen (left to right)
                         for (int i = 0; i < 5; i++) {
                             FrameInterpolation_RecordOpenChild("Backdrop", i);
-                            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                             if (gPlayer[0].state == PLAYERSTATE_LEVEL_INTRO) {
                                 gSPDisplayList(gMasterDisp++, D_AQ_601AFF0);
                             } else {
@@ -839,7 +833,6 @@ void Background_DrawBackdrop(void) {
                         } else {
                             // @port: Tag the transform.
                             FrameInterpolation_RecordOpenChild("Backdrop", i);
-                            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
                         }
 
                         if (gCurrentLevel == LEVEL_TITANIA) {
@@ -1139,12 +1132,16 @@ void Background_DrawSun(void) {
             sunScale = sKaSunScales;
         }
         for (i = 0; i < 5; i++, sunColor++, sunAlpha++, sunDL++, sunScale++) {
+            FrameInterpolation_RecordOpenChild("Sun", i);
+
             Matrix_Push(&gGfxMatrix);
             Matrix_Scale(gGfxMatrix, *sunScale, *sunScale, *sunScale, MTXF_APPLY);
             Matrix_SetGfxMtx(&gMasterDisp);
             gDPSetPrimColor(gMasterDisp++, 0x00, 0x00, sunColor->r, sunColor->g, sunColor->b, *sunAlpha);
             gSPDisplayList(gMasterDisp++, *sunDL);
             Matrix_Pop(&gGfxMatrix);
+
+            FrameInterpolation_RecordCloseChild();
         }
         Matrix_Pop(&gGfxMatrix);
     }
@@ -1265,7 +1262,7 @@ void AllRangeGround_Draw(void) {
         // LOWER RIGHT QUADRANT
         if (gPlayer[0].pos.x > maxDistX && gPlayer[0].pos.z > maxDistZ) {
             // lower right corner piece : 4
-            // // lower middle left piece : 5
+            // lower middle left piece : 5
             // lower middle right piece : 6
             // side upper right piece: 14
             // side lower right piece : 15
@@ -1274,11 +1271,11 @@ void AllRangeGround_Draw(void) {
             }
         }
 
-        Matrix_Push(&gGfxMatrix);
-
         // @port: Tag the transform.
         FrameInterpolation_RecordOpenChild("360Ground", i);
 
+        Matrix_Push(&gGfxMatrix);
+
         Matrix_Translate(gGfxMatrix, sGroundPositions360x_FIX[i], 0.0f, sGroundPositions360z_FIX[i], MTXF_APPLY);
 
         if (gCurrentLevel == LEVEL_TRAINING) {
@@ -1394,6 +1391,8 @@ void Background_DrawGround(void) {
 #endif
     }
 
+    FrameInterpolation_RecordOpenChild("Ground", 0);
+
     Matrix_Push(&gGfxMatrix);
     Matrix_Translate(gGfxMatrix, gPlayer[gPlayerNum].xPath, -3.0f + gCameraShakeY, sp1D4, MTXF_APPLY);
 
@@ -2255,6 +2254,8 @@ void Background_DrawGround(void) {
             break;
     }
     Matrix_Pop(&gGfxMatrix);
+
+    FrameInterpolation_RecordCloseChild();
 }
 
 // Unused. Early water implementation in Aquas?
diff --git a/src/engine/fox_display.c b/src/engine/fox_display.c
index 8351cd54..1434d68a 100644
--- a/src/engine/fox_display.c
+++ b/src/engine/fox_display.c
@@ -271,11 +271,11 @@ void Display_OnFootFalco_PostLimbDraw(s32 limbIndex, Vec3f* rot, void* data) {
 }
 
 void Display_OnFootMuzzleFlash(Player* player) {
-    Matrix_Push(&gGfxMatrix);
-
     // @port: Tag the transform.
     FrameInterpolation_RecordOpenChild("Display_OnFootMuzzleFlash", player->num);
 
+    Matrix_Push(&gGfxMatrix);
+
     Matrix_Copy(gGfxMatrix, &gIdentityMatrix);
     if ((player->state == PLAYERSTATE_ACTIVE) && (player->csTimer != 0)) {
         Matrix_Translate(gGfxMatrix, D_display_801613B0[player->num].x, D_display_801613B0[player->num].y,
@@ -325,6 +325,8 @@ void Display_Landmaster(Player* player) {
     Vec3f sp4C = { 0.0f, 0.0f, 90.0f };
     Vec3f sp40 = { 0.0f, 40.0f, -70.0f };
 
+    FrameInterpolation_RecordOpenChild("Landmaster", player->num);
+
     Matrix_Push(&gGfxMatrix);
 
     if (!gVersusMode) {
@@ -364,6 +366,8 @@ void Display_Landmaster(Player* player) {
 
     Matrix_MultVec3f(gGfxMatrix, &sp4C, &D_display_80161548[player->num]);
     Matrix_Pop(&gGfxMatrix);
+    
+    FrameInterpolation_RecordCloseChild();
 }
 
 Gfx* sFaceDL[] = { aAwFoxHeadDL, aAwFalcoHeadDL, aAwSlippyHeadDL, aAwPeppyHeadDL };
@@ -375,11 +379,11 @@ f32 sReticleScales[] = { 0.0f, 0.0f, 0.0f, 0.0f };
 f32 sPlayerShadowing = 0.0f;
 
 void Display_LandmasterMuzzleFlash(Player* player) {
-    Matrix_Push(&gGfxMatrix);
-
     // @port: Tag the transform.
     FrameInterpolation_RecordOpenChild("Display_LandmasterMuzzleFlash", player->num);
 
+    Matrix_Push(&gGfxMatrix);
+
     if ((player->state == PLAYERSTATE_ACTIVE) && (player->unk_1A0 != 0)) {
         Matrix_Translate(gGfxMatrix, D_display_80161548[player->num].x, D_display_80161548[player->num].y,
                          D_display_80161548[player->num].z, MTXF_APPLY);
@@ -431,11 +435,11 @@ void Display_LandmasterThrusters(Player* player) {
             sp2C *= 1.1f;
         }
 
-        Matrix_Push(&gGfxMatrix);
-
         // @port: Tag the transform.
         FrameInterpolation_RecordOpenChild("Display_LandmasterThrusters_1", player->num);
 
+        Matrix_Push(&gGfxMatrix);
+
         Matrix_Translate(gGfxMatrix, 20.0f, 30.0f, -10.0f, MTXF_APPLY);
 
         if (!gVersusMode) {
@@ -468,11 +472,11 @@ void Display_LandmasterThrusters(Player* player) {
             sp2C *= 1.1f;
         }
 
-        Matrix_Push(&gGfxMatrix);
-
         // @port: Tag the transform.
         FrameInterpolation_RecordOpenChild("Display_LandmasterThrusters_2", player->num);
 
+        Matrix_Push(&gGfxMatrix);
+
         Matrix_Translate(gGfxMatrix, -20.0f, 30.0f, -10.0f, MTXF_APPLY);
 
         if (!gVersusMode) {
@@ -697,10 +701,11 @@ void Display_ArwingWings(ArwingInfo* arwing) {
     }
 
     gSPSetGeometryMode(gMasterDisp++, G_CULL_BACK);
-    Matrix_Pop(&gGfxMatrix);
 
     // @port Pop the transform id.
     FrameInterpolation_RecordCloseChild();
+
+    Matrix_Pop(&gGfxMatrix);
 }
 
 void Display_Unused(f32 arg0, f32 arg1, UNK_TYPE arg2, UNK_TYPE arg3) {
@@ -708,11 +713,11 @@ void Display_Unused(f32 arg0, f32 arg1, UNK_TYPE arg2, UNK_TYPE arg3) {
 }
 
 void Display_CockpitGlass(void) {
-    Matrix_Push(&gGfxMatrix);
-
     // @port: Tag the transform.
     FrameInterpolation_RecordOpenChild("Display_CockpitGlass", 0);
 
+    Matrix_Push(&gGfxMatrix);
+
     Matrix_Copy(gGfxMatrix, &D_display_80161418[0]);
     Matrix_Translate(gGfxMatrix, 0.0f, D_display_800CA290, D_display_800CA294, MTXF_APPLY);
     Matrix_Scale(gGfxMatrix, D_display_800CA28C, D_display_800CA28C, D_display_800CA28C, MTXF_APPLY);
@@ -793,10 +798,10 @@ void Display_Reticle(Player* player) {
         (((gGameState == GSTATE_PLAY) && (player->state == PLAYERSTATE_ACTIVE)) || (gGameState == GSTATE_MENU))) {
         for (i = 0; i < 2; i++) {
             FrameInterpolation_RecordOpenChild("Reticle", (player->num << 16) + i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
             translate = &D_display_801613E0[i];
             Matrix_Push(&gGfxMatrix);
             Matrix_Translate(gGfxMatrix, translate->x, translate->y, translate->z, MTXF_APPLY);
+
             if (gChargeTimers[player->num] >= 20) {
                 RCP_SetupDL(&gMasterDisp, SETUPDL_63_OPTIONAL);
                 if (i == 1) {
@@ -815,6 +820,7 @@ void Display_Reticle(Player* player) {
                 Matrix_Scale(gGfxMatrix, sReticleScales[player->num], sReticleScales[player->num], 1.0f, MTXF_APPLY);
                 Math_SmoothStepToF(&sReticleScales[player->num], 1.0f, 1.0f, 0.2f, 0.0f);
             }
+
             Matrix_Scale(gGfxMatrix, 4.0f, 4.0f, 4.0f, MTXF_APPLY);
             Matrix_SetGfxMtx(&gMasterDisp);
             gSPDisplayList(gMasterDisp++, D_1024F60);
@@ -856,6 +862,8 @@ void Display_PlayerShadow_Draw(Player* player) {
         player->shadowing = 180;
     }
 
+    FrameInterpolation_RecordOpenChild("PlayerShadow", player->num);
+
     switch (player->form) {
         case FORM_ARWING:
         fake_label:
@@ -895,6 +903,8 @@ void Display_PlayerShadow_Draw(Player* player) {
             Matrix_Pop(&gGfxMatrix);
             break;
     }
+
+    FrameInterpolation_RecordCloseChild();
 }
 
 void Display_DrawEngineGlow(EngineGlowColor color) {
@@ -921,6 +931,9 @@ void Display_DrawEngineGlow(EngineGlowColor color) {
 void Display_LandmasterEngineGlow_Draw(Player* player) {
     RCP_SetupDL_64();
     gDPSetPrimColor(gMasterDisp++, 0x00, 0x00, 255, 255, 255, 100);
+
+    FrameInterpolation_RecordOpenChild("LandmasterEngineGlow", player->num);
+
     Matrix_Push(&gGfxMatrix);
     Matrix_RotateZ(gGfxMatrix, player->bankAngle * M_DTOR, MTXF_APPLY);
     if (player->form == FORM_LANDMASTER) {
@@ -941,6 +954,8 @@ void Display_LandmasterEngineGlow_Draw(Player* player) {
     Matrix_SetGfxMtx(&gMasterDisp);
     Display_DrawEngineGlow(gLevelType);
     Matrix_Pop(&gGfxMatrix);
+
+    FrameInterpolation_RecordCloseChild();
 }
 
 void Display_BarrelRollShield(Player* player) {
@@ -970,10 +985,10 @@ void Display_BarrelRollShield(Player* player) {
             zRotDirection = -1.0f;
         }
 
-        Matrix_Push(&gGfxMatrix);
-
         // @port: Tag the transform.
-        FrameInterpolation_RecordOpenChild("BarrelRollShield", 0);
+        FrameInterpolation_RecordOpenChild("BarrelRollShield", player->num);
+
+        Matrix_Push(&gGfxMatrix);
 
         Matrix_Translate(gGfxMatrix, player->pos.x + dest.x, player->pos.y + dest.y,
                          player->trueZpos + player->zPath + dest.z, MTXF_APPLY);
@@ -1005,10 +1020,10 @@ void Display_BarrelRollShield(Player* player) {
 
 void Display_UnusedShield(Player* player) {
     if (gShieldAlpha[player->num] > 1.0f) {
-        Matrix_Push(&gGfxMatrix);
-
         // @port: Tag the transform.
-        FrameInterpolation_RecordOpenChild("Display_UnusedShield", 0);
+        FrameInterpolation_RecordOpenChild("Display_UnusedShield", player->num);
+
+        Matrix_Push(&gGfxMatrix);
 
         Matrix_Copy(gGfxMatrix, &D_display_80161418[player->num]);
         Matrix_Translate(gGfxMatrix, 0.0f, -5.0f, 10.0f, MTXF_APPLY);
@@ -1046,12 +1061,16 @@ void Display_ArwingLaserCharge(Player* player) {
             Matrix_MultVec3f(gCalcMatrix, &spC4, &sp94);
         }
 
+        
         Matrix_Push(&gGfxMatrix);
-
+        
         sp80 = gChargeTimers[player->num] / 20.0f;
-
+        
         Matrix_Translate(gGfxMatrix, sp94.x, sp94.y, sp94.z, MTXF_NEW);
         Matrix_Scale(gGfxMatrix, sp80, sp80, 1.0f, MTXF_APPLY);
+        
+        FrameInterpolation_RecordOpenChild("ArwingLaserCharge", player->num);
+        
         Matrix_Push(&gGfxMatrix);
 
         if (player->alternateView && (gLevelMode == LEVELMODE_ON_RAILS)) {
@@ -1089,6 +1108,10 @@ void Display_ArwingLaserCharge(Player* player) {
         gSPDisplayList(gMasterDisp++, aStarDL);
         Matrix_Pop(&gGfxMatrix);
 
+        FrameInterpolation_RecordCloseChild();
+
+        FrameInterpolation_RecordOpenChild("ArwingLaserCharge2", player->num);
+
         if (player->alternateView && (gLevelMode == LEVELMODE_ON_RAILS)) {
             Matrix_Scale(gGfxMatrix, 0.3f, 0.3f, 0.3f, MTXF_APPLY);
         }
@@ -1103,6 +1126,8 @@ void Display_ArwingLaserCharge(Player* player) {
         Matrix_SetGfxMtx(&gMasterDisp);
         gSPDisplayList(gMasterDisp++, aOrbDL);
         Matrix_Pop(&gGfxMatrix);
+
+        FrameInterpolation_RecordCloseChild();
     }
     if (gMuzzleFlashScale[player->num] > 0.1f) {
         Matrix_Push(&gGfxMatrix);
@@ -1124,10 +1149,10 @@ void Display_ArwingLaserCharge(Player* player) {
                     Matrix_MultVec3f(gCalcMatrix, &spC4, &sp94);
                 }
 
-                Matrix_Push(&gGfxMatrix);
-
                 // @port: Tag the transform.
-                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash", 0);
+                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash1", player->num);
+
+                Matrix_Push(&gGfxMatrix);
 
                 Matrix_Translate(gGfxMatrix, sp94.x, sp94.y, sp94.z, MTXF_NEW);
                 Matrix_Scale(gGfxMatrix, gMuzzleFlashScale[player->num], gMuzzleFlashScale[player->num], 1.0f,
@@ -1152,10 +1177,11 @@ void Display_ArwingLaserCharge(Player* player) {
                 }
                 Matrix_MultVec3f(gCalcMatrix, &spAC, &sp94);
                 Matrix_MultVec3f(gCalcMatrix, &spA0, &sp88);
-                Matrix_Push(&gGfxMatrix);
 
                 // @port: Tag the transform.
-                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash", 0);
+                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash2", player->num);
+
+                Matrix_Push(&gGfxMatrix);
 
                 Matrix_Translate(gGfxMatrix, sp94.x, sp94.y, sp94.z, MTXF_NEW);
                 Matrix_Scale(gGfxMatrix, gMuzzleFlashScale[player->num], gMuzzleFlashScale[player->num], 1.0f,
@@ -1170,7 +1196,7 @@ void Display_ArwingLaserCharge(Player* player) {
                 Matrix_Push(&gGfxMatrix);
 
                 // @port: Tag the transform.
-                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash", 1);
+                FrameInterpolation_RecordOpenChild("ArwingMuzzleFlash3", player->num);
 
                 Matrix_Translate(gGfxMatrix, sp88.x, sp88.y, sp88.z, MTXF_NEW);
                 Matrix_Scale(gGfxMatrix, gMuzzleFlashScale[player->num], gMuzzleFlashScale[player->num], 1.0f,
@@ -1343,7 +1369,7 @@ void Display_ArwingWingTrail_Draw(Player* player) {
         gDPSetPrimColor(gMasterDisp++, 0x00, 0x00, 255, 255, 255, 100);
 
         // @port: Tag the transform.
-        FrameInterpolation_RecordOpenChild("WingTrail", 0);
+        FrameInterpolation_RecordOpenChild("WingTrail", player->num);
 
         if (player->arwing.leftWingState == WINGSTATE_INTACT) {
             Matrix_Push(&gGfxMatrix);
@@ -1363,7 +1389,7 @@ void Display_ArwingWingTrail_Draw(Player* player) {
         FrameInterpolation_RecordCloseChild();
 
         // @port: Tag the transform.
-        FrameInterpolation_RecordOpenChild("WingTrail", 1);
+        FrameInterpolation_RecordOpenChild("WingTrail2", player->num);
 
         if (player->arwing.rightWingState == WINGSTATE_INTACT) {
             Matrix_Push(&gGfxMatrix);
@@ -1637,8 +1663,8 @@ void Display_ActorMarks(void) {
 
         for (i = 0; i < ARRAY_COUNT(gTeamArrowsViewPos); i++) {
             if (gTeamArrowsViewPos[i].z < 0.0f) {
-                FrameInterpolation_RecordOpenChild(&gTeamArrowsViewPos[i], i);
-                FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+                FrameInterpolation_RecordOpenChild("ActorMarks", i);
+                
                 var_fs0 = (VEC3F_MAG(&gTeamArrowsViewPos[i])) * 0.0015f;
                 if (var_fs0 > 100.0f) {
                     var_fs0 = 100.0f;
@@ -1683,8 +1709,7 @@ void Display_LockOnIndicator(void) {
         if (gLockOnTargetViewPos[i].z < 0.0f) {
             var_fs0 = VEC3F_MAG(&gLockOnTargetViewPos[i]);
             if (var_fs0 < 20000.0f) {
-                FrameInterpolation_RecordOpenChild("LcckOnIndicator", 0);
-                FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+                FrameInterpolation_RecordOpenChild("LockOnIndicator", i);
                 var_fs0 *= 0.0015f;
                 if (var_fs0 > 100.0f) {
                     var_fs0 = 100.0f;
@@ -1797,9 +1822,7 @@ void Display_CsLevelCompleteHandleCamera(Player* player) {
             break;
     }
 }
-#if 1
-f32 gTestVarF = 0.0f;
-#endif
+
 void Display_Update(void) {
     s32 i;
     Vec3f tempVec;
@@ -1895,8 +1918,7 @@ void Display_Update(void) {
         printf("CAMERA 1 SKIPED: %d\n", camSkipTimes++);
         gCamera1Skipped = true;
     } else {
-        FrameInterpolation_RecordOpenChild("GamePlayCam", 0);
-        FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+        FrameInterpolation_RecordOpenChild("GamePlayCam", camPlayer->num);
         gCamera1Skipped = false;
     }
 
@@ -1919,10 +1941,8 @@ void Display_Update(void) {
     }
 
     Background_DrawBackdrop();
-    FrameInterpolation_RecordOpenChild("Sun", 0);
-    FrameInterpolation_RecordMarker(__FILE__, __LINE__);
     Background_DrawSun();
-    FrameInterpolation_RecordCloseChild();
+    
     Matrix_Push(&gGfxMatrix);
     Matrix_LookAt(gGfxMatrix, gPlayCamEye.x, gPlayCamEye.y, gPlayCamEye.z, gPlayCamAt.x, gPlayCamAt.y, gPlayCamAt.z,
                   playerCamUp.x, playerCamUp.y, playerCamUp.z, MTXF_APPLY);
@@ -1938,10 +1958,7 @@ void Display_Update(void) {
             Matrix_Pop(&gGfxMatrix);
         } else if (gGroundSurface != SURFACE_WATER) {
             D_bg_8015F964 = false;
-            FrameInterpolation_RecordOpenChild("Ground", 0);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
             Background_DrawGround();
-            FrameInterpolation_RecordCloseChild();
         }
     }
 
@@ -2010,10 +2027,7 @@ void Display_Update(void) {
     if ((gGroundSurface == SURFACE_WATER) || (gAqDrawMode != 0)) {
         D_bg_8015F964 = true;
         Effect_Draw(1);
-        FrameInterpolation_RecordOpenChild("Ground", 0);
-        FrameInterpolation_RecordMarker(__FILE__, __LINE__);
         Background_DrawGround();
-        FrameInterpolation_RecordCloseChild();
     }
 
     if ((gCurrentLevel != LEVEL_AQUAS) &&
@@ -2026,12 +2040,9 @@ void Display_Update(void) {
 
     for (i = 0, player = &gPlayer[0]; i < gCamCount; i++, player++) {
         if (sPlayersVisible[i]) {
-            FrameInterpolation_RecordOpenChild(player, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
             Display_PlayerShadow_Update(player);
             Display_PlayerFeatures(player);
             Display_ArwingWingTrail_Update(player);
-            FrameInterpolation_RecordCloseChild();
         }
     }
 
diff --git a/src/engine/fox_edisplay.c b/src/engine/fox_edisplay.c
index 8ac59c45..969cd8ad 100644
--- a/src/engine/fox_edisplay.c
+++ b/src/engine/fox_edisplay.c
@@ -833,8 +833,7 @@ void ItemCheckpoint_Draw(ItemCheckpoint* this) {
     s32 i;
 
     if (((gGameFrameCount & 0x18) != 0) && (this->state == 0)) {
-        FrameInterpolation_RecordOpenChild(this, 0);
-        FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+        FrameInterpolation_RecordOpenChild("ItemCheckpoint", 0);
         Matrix_Push(&gGfxMatrix);
         RCP_SetupDL(&gMasterDisp, SETUPDL_64);
         gDPSetPrimColor(gMasterDisp++, 0x00, 0x00, 255, 255, 0, 255);
@@ -846,14 +845,14 @@ void ItemCheckpoint_Draw(ItemCheckpoint* this) {
         Matrix_Pop(&gGfxMatrix);
         FrameInterpolation_RecordCloseChild();
     }
-    FrameInterpolation_RecordOpenChild(this, 1);
-    FrameInterpolation_RecordMarker(__FILE__, __LINE__);
     RCP_SetupDL(&gMasterDisp, SETUPDL_29);
     gSPTexture(gMasterDisp++, 2000, 2000, 0, G_TX_RENDERTILE, G_ON);
     gSPSetGeometryMode(gMasterDisp++, G_TEXTURE_GEN);
     Matrix_RotateZ(gGfxMatrix, this->unk_58 * M_DTOR, MTXF_APPLY);
 
     for (i = 0; i < 8; i++) {
+        FrameInterpolation_RecordOpenChild("ItemCheckpoint", i + 1);
+
         Matrix_Push(&gGfxMatrix);
         Matrix_RotateZ(gGfxMatrix, i * 45.0f * M_DTOR, MTXF_APPLY);
         Matrix_Translate(gGfxMatrix, 2.0f * this->width, 0.0f, 0.0f, MTXF_APPLY);
@@ -861,9 +860,10 @@ void ItemCheckpoint_Draw(ItemCheckpoint* this) {
         Graphics_SetScaleMtx(2.0f * this->unk_50);
         gSPDisplayList(gMasterDisp++, D_101CAE0);
         Matrix_Pop(&gGfxMatrix);
+
+        FrameInterpolation_RecordCloseChild();
     }
     gSPClearGeometryMode(gMasterDisp++, G_TEXTURE_GEN);
-    FrameInterpolation_RecordCloseChild();
 }
 
 void ItemSilverRing_Draw(ItemSilverRing* this) {
@@ -1797,7 +1797,7 @@ void Object_DrawAll(s32 cullDirection) {
 
         for (i = 0, scenery360 = gScenery360; i < 200; i++, scenery360++) {
             FrameInterpolation_RecordOpenChild(scenery360, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             if ((scenery360->obj.status == OBJ_ACTIVE) && (scenery360->obj.id != OBJ_SCENERY_LEVEL_OBJECTS)) {
                 if (gCurrentLevel == LEVEL_BOLSE) {
                     spAC.x = scenery360->sfxSource[0];
@@ -1810,6 +1810,7 @@ void Object_DrawAll(s32 cullDirection) {
                 Scenery360_Draw(scenery360);
                 Matrix_Pop(&gGfxMatrix);
             }
+
             FrameInterpolation_RecordCloseChild();
         }
     } else {
@@ -1817,7 +1818,7 @@ void Object_DrawAll(s32 cullDirection) {
         for (i = 0, scenery = gScenery; i < ARRAY_COUNT(gScenery); i++, scenery++) {
             if (scenery->obj.status >= OBJ_ACTIVE) {
                 FrameInterpolation_RecordOpenChild(scenery, i);
-                FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
                 if (cullDirection > 0) {
                     Display_SetSecondLight(&scenery->obj.pos);
                 }
@@ -1825,6 +1826,7 @@ void Object_DrawAll(s32 cullDirection) {
                 Scenery_Draw(scenery, cullDirection);
                 Matrix_Pop(&gGfxMatrix);
                 Object_UpdateSfxSource(scenery->sfxSource);
+
                 FrameInterpolation_RecordCloseChild();
             }
         }
@@ -1833,7 +1835,7 @@ void Object_DrawAll(s32 cullDirection) {
     for (i = 0, boss = &gBosses[0]; i < ARRAY_COUNT(gBosses); i++, boss++) {
         if ((boss->obj.status >= OBJ_ACTIVE) && (boss->obj.id != OBJ_BOSS_BO_BASE_SHIELD)) {
             FrameInterpolation_RecordOpenChild(boss, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             if ((boss->timer_05C % 2) == 0) {
                 RCP_SetupDL_29(gFogRed, gFogGreen, gFogBlue, gFogAlpha, gFogNear, gFogFar);
             } else {
@@ -1850,6 +1852,7 @@ void Object_DrawAll(s32 cullDirection) {
                 Object_DrawShadow(i, &boss->obj);
                 Matrix_Pop(&gGfxMatrix);
             }
+
             FrameInterpolation_RecordCloseChild();
         }
     }
@@ -1860,7 +1863,7 @@ void Object_DrawAll(s32 cullDirection) {
     for (i = 0, sprite = &gSprites[0]; i < ARRAY_COUNT(gSprites); i++, sprite++) {
         if ((sprite->obj.status >= OBJ_ACTIVE) && func_enmy_80060FE4(&sprite->obj.pos, -12000.0f)) {
             FrameInterpolation_RecordOpenChild(sprite, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             Matrix_Push(&gGfxMatrix);
 
             if ((sprite->obj.id == OBJ_SPRITE_CO_RUIN1) || (sprite->obj.id == OBJ_SPRITE_CO_RUIN2)) {
@@ -1871,6 +1874,7 @@ void Object_DrawAll(s32 cullDirection) {
 
             Sprite_Draw(sprite, cullDirection);
             Matrix_Pop(&gGfxMatrix);
+
             FrameInterpolation_RecordCloseChild();
         }
     }
@@ -1878,7 +1882,7 @@ void Object_DrawAll(s32 cullDirection) {
     for (i = 0, actor = &gActors[0]; i < ARRAY_COUNT(gActors); i++, actor++) {
         if (actor->obj.status >= OBJ_ACTIVE) {
             FrameInterpolation_RecordOpenChild(actor, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             if ((actor->timer_0C6 % 2) == 0) {
                 if (gCurrentLevel == LEVEL_UNK_15) {
                     RCP_SetupDL_23();
@@ -1940,12 +1944,13 @@ void Object_DrawAll(s32 cullDirection) {
     for (i = 0, item = &gItems[0]; i < ARRAY_COUNT(gItems); i++, item++) {
         if (item->obj.status >= OBJ_ACTIVE) {
             FrameInterpolation_RecordOpenChild(item, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             Matrix_Push(&gGfxMatrix);
             RCP_SetupDL(&gMasterDisp, SETUPDL_29);
             Object_SetCullDirection(cullDirection);
             Item_Draw(item, cullDirection);
             Matrix_Pop(&gGfxMatrix);
+
             FrameInterpolation_RecordCloseChild();
         }
     }
@@ -1964,7 +1969,7 @@ void Effect_DrawAll(s32 arg0) {
     for (i = 0, effect = &gEffects[0]; i < ARRAY_COUNT(gEffects); i++, effect++) {
         if (effect->obj.status >= OBJ_ACTIVE) {
             FrameInterpolation_RecordOpenChild(effect, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             if (effect->info.unk_14 == 1) {
                 effect->obj.rot.y = RAD_TO_DEG(-gPlayer[gPlayerNum].camYaw);
                 effect->obj.rot.x = RAD_TO_DEG(gPlayer[gPlayerNum].camPitch);
@@ -1985,6 +1990,7 @@ void Effect_DrawAll(s32 arg0) {
                     Matrix_Pop(&gGfxMatrix);
                 }
             }
+
             FrameInterpolation_RecordCloseChild();
         }
     }
@@ -1992,7 +1998,7 @@ void Effect_DrawAll(s32 arg0) {
     for (i = 0, boss = &gBosses[0]; i < ARRAY_COUNT(gBosses); i++, boss++) {
         if ((boss->obj.status >= OBJ_ACTIVE) && (boss->obj.id == OBJ_BOSS_BO_BASE_SHIELD)) {
             FrameInterpolation_RecordOpenChild(boss, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             if ((boss->timer_05C % 2) == 0) {
                 RCP_SetupDL_29(gFogRed, gFogGreen, gFogBlue, gFogAlpha, gFogNear, gFogFar);
             } else {
@@ -2002,6 +2008,7 @@ void Effect_DrawAll(s32 arg0) {
             Matrix_Push(&gGfxMatrix);
             Boss_Draw(boss, arg0);
             Matrix_Pop(&gGfxMatrix);
+
             FrameInterpolation_RecordCloseChild();
         }
     }
@@ -2065,7 +2072,6 @@ void TexturedLine_Draw(void) {
     for (i = 0; i < ARRAY_COUNT(gTexturedLines); i++) {
         TexturedLine* texLine = &gTexturedLines[i];
         FrameInterpolation_RecordOpenChild(texLine, i);
-        FrameInterpolation_RecordMarker(__FILE__, __LINE__);
 
         if (gTexturedLines[i].mode != 0) {
             Matrix_Push(&gGfxMatrix);
diff --git a/src/engine/fox_effect.c b/src/engine/fox_effect.c
index 3a7665a5..ada1e7ca 100644
--- a/src/engine/fox_effect.c
+++ b/src/engine/fox_effect.c
@@ -148,10 +148,11 @@ void BonusText_DrawAll(void) {
     for (i = 0, bonus = gBonusText; i < ARRAY_COUNT(gBonusText); i++, bonus++) {
         if (bonus->hits != 0) {
             FrameInterpolation_RecordOpenChild(bonus, i);
-            FrameInterpolation_RecordMarker(__FILE__, __LINE__);
+
             Matrix_Push(&gGfxMatrix);
             BonusText_Draw(bonus);
             Matrix_Pop(&gGfxMatrix);
+            
             FrameInterpolation_RecordCloseChild();
         }
     }
diff --git a/src/engine/fox_play.c b/src/engine/fox_play.c
index cb8cc26c..c11c9dd6 100644
--- a/src/engine/fox_play.c
+++ b/src/engine/fox_play.c
@@ -2919,7 +2919,7 @@ void Play_Init(void) {
     D_ctx_801782C8 = 0;
 
     if (gCurrentLevel == LEVEL_TITANIA) {
-        Ground_801B5110(0.0f, 0.0f, 200.0f);
+        Ground_Init(0.0f, 0.0f, 200.0f);
     }
     if (gCurrentLevel == LEVEL_AQUAS) {
         gWaterLevel = 1000.0f;