Fixed camera interpolation double skips, made the skybox skip interpolation with the camera, fixed particles getting incorrectly matched

lib/rt64

@@ -1 +1 @@
-Subproject commit 482b9c9e48e97627b374a997dc8e21116af712e7
+Subproject commit 8cced1f560a5513595b0d32335ac36244b82a411

patches/camera_transform_tagging.c

@@ -10,6 +10,20 @@ static bool camera_ignore_tracking = false;
 static bool in_kaleido = false;
 static bool prev_in_kaleido = false;
 
+static bool camera_skipped = false;
+
+void set_camera_skipped(bool skipped) {
+    camera_skipped = skipped;
+}
+
+void clear_camera_skipped() {
+    camera_skipped = false;
+}
+
+bool camera_was_skipped() {
+    return camera_skipped;
+}
+
 void camera_pre_play_update(PlayState* play) {
 }
 
@@ -126,15 +140,13 @@ bool should_interpolate_perspective(Vec3f* eye, Vec3f* at) {
         return true;
     }
 
-    if (velocity_diff > 50.0f) {
-        return false;
-    }
-
-    if (at_dist > 50.0f) {
-        return false;
-    }
-
-    if (eye_dist > 300.0f) {
+    if (velocity_diff > 50.0f || at_dist > 50.0f || eye_dist > 300.0f) {
+        eye_velocity.x = 0.0f;
+        eye_velocity.y = 0.0f;
+        eye_velocity.z = 0.0f;
+        at_velocity.x = 0.0f;
+        at_velocity.y = 0.0f;
+        at_velocity.z = 0.0f;
         return false;
     }
 
@@ -194,6 +206,9 @@ void View_Apply(View* view, s32 mask) {
             G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR);
     }
 
+    // Record whether the camera was skipped for later use.
+    set_camera_skipped(!interpolate_camera);
+
     camera_interpolation_forced = false;
     camera_skip_interpolation_forced = false;
 

patches/particle_transform_tagging.c

@@ -3,14 +3,83 @@
 
 extern EffectSsInfo sEffectSsInfo;
 
+#define MAX_PARTICLES 256
+u8 particle_reset_list[MAX_PARTICLES];
+
+// @recomp Patched to track that the particle has been reset.
+void EffectSS_ResetEntry(EffectSs* particle) {
+    u32 i;
+
+    particle->type = EFFECT_SS_MAX;
+    particle->accel.x = particle->accel.y = particle->accel.z = 0;
+    particle->velocity.x = particle->velocity.y = particle->velocity.z = 0;
+    particle->vec.x = particle->vec.y = particle->vec.z = 0;
+    particle->pos.x = particle->pos.y = particle->pos.z = 0;
+    particle->life = -1;
+    particle->flags = 0;
+    particle->priority = 128;
+    particle->draw = NULL;
+    particle->update = NULL;
+    particle->gfx = NULL;
+    particle->actor = NULL;
+
+    for (i = 0; i < ARRAY_COUNT(particle->regs); i++) {
+        particle->regs[i] = 0;
+    }
+
+    // @recomp Get this particle's index and mark it as being reset.
+    u32 particle_index = particle - &sEffectSsInfo.dataTable[0];
+    if (particle_index >= sEffectSsInfo.size) {
+        recomp_crash("Invalid particle was reset!\n");
+    }
+    particle_reset_list[particle_index] = true;
+}
+
+// @recomp Check numEntries to be sure enough space has been allocated for tracking particle statuses.
+void EffectSS_Init(PlayState* play, s32 numEntries) {
+    u32 i;
+    EffectSs* effectsSs;
+    EffectSsOverlay* overlay;
+
+    // @recomp Perform the numEntries check.
+    if (numEntries > MAX_PARTICLES) {
+        recomp_crash("Particle reset list too small!\n");
+    }
+
+    sEffectSsInfo.dataTable = (EffectSs*)THA_AllocTailAlign16(&play->state.tha, numEntries * sizeof(EffectSs));
+    sEffectSsInfo.searchIndex = 0;
+    sEffectSsInfo.size = numEntries;
+
+    for (effectsSs = &sEffectSsInfo.dataTable[0]; effectsSs < &sEffectSsInfo.dataTable[sEffectSsInfo.size];
+         effectsSs++) {
+        EffectSS_ResetEntry(effectsSs);
+    }
+
+    overlay = &gParticleOverlayTable[0];
+    for (i = 0; i < EFFECT_SS_MAX; i++) {
+        overlay->loadedRamAddr = NULL;
+        overlay++;
+    }
+}
+
 // @recomp Add transform tags to particles
 void EffectSS_DrawParticle(PlayState* play, s32 index) {
     EffectSs* entry = &sEffectSsInfo.dataTable[index];
 
     OPEN_DISPS(play->state.gfxCtx);
 
+    // @recomp If this particle was just reset then skip interpolation.
+    if (particle_reset_list[index]) {
+        gEXMatrixGroupDecomposed(POLY_OPA_DISP++, PARTICLE_TRANSFORM_ID_START + index, G_EX_PUSH, G_MTX_MODELVIEW, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_ORDER_LINEAR);
+        gEXMatrixGroupDecomposed(POLY_XLU_DISP++, PARTICLE_TRANSFORM_ID_START + index, G_EX_PUSH, G_MTX_MODELVIEW, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_ORDER_LINEAR);
+    }
+    else {
         gEXMatrixGroupDecomposed(POLY_OPA_DISP++, PARTICLE_TRANSFORM_ID_START + index, G_EX_PUSH, G_MTX_MODELVIEW, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR);
         gEXMatrixGroupDecomposed(POLY_XLU_DISP++, PARTICLE_TRANSFORM_ID_START + index, G_EX_PUSH, G_MTX_MODELVIEW, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR);
+    }
+
+    // @recomp Clear this particle's reset state.
+    particle_reset_list[index] = false;
     
     if (entry->draw != NULL) {
         entry->draw(play, index, entry);

patches/patches.h

@@ -48,4 +48,10 @@ void draw_dpad_icons(PlayState* play);
 
 void View_ApplyInterpolate(View* view, s32 mask, bool reset_interpolation_state);
 
+void set_camera_skipped(bool skipped);
+void clear_camera_skipped();
+bool camera_was_skipped();
+
+void recomp_crash(const char* err);
+
 #endif

patches/sky_transform_tagging.c

@@ -30,9 +30,15 @@ void Skybox_Draw(SkyboxContext* skyboxCtx, GraphicsContext* gfxCtx, s16 skyboxId
 
     gSPMatrix(POLY_OPA_DISP++, sSkyboxDrawMatrix, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
     
-    // @recomp Tag the skybox's matrix.
+    // @recomp Tag the skybox's matrix, skipping interpolation if the camera's interpolation was also skipped.
+    if (camera_was_skipped()) {
+        gEXMatrixGroupDecomposed(POLY_OPA_DISP++, SKYBOX_TRANSFORM_ID_START, G_EX_PUSH, G_MTX_MODELVIEW,
+            G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR);
+    }
+    else {
         gEXMatrixGroupDecomposed(POLY_OPA_DISP++, SKYBOX_TRANSFORM_ID_START, G_EX_PUSH, G_MTX_MODELVIEW,
             G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_INTERPOLATE, G_EX_COMPONENT_SKIP, G_EX_COMPONENT_INTERPOLATE, G_EX_ORDER_LINEAR);
+    }
     
     gDPSetColorDither(POLY_OPA_DISP++, G_CD_MAGICSQ);
     gDPSetTextureFilter(POLY_OPA_DISP++, G_TF_BILERP);

patches/ui_patches.c

@@ -97,6 +97,9 @@ void Graph_ExecuteAndDraw(GraphicsContext* gfxCtx, GameState* gameState) {
     // @recomp Send the current framerate to RT64, including any extra VI interrupt periods. 
     gEXSetRefreshRate(POLY_OPA_DISP++, 60 / (gameState->framerateDivisor + extra_vis));
 
+    // @recomp Clear the camera skip state.
+    clear_camera_skipped();
+
     gSPEndDisplayList(WORK_DISP++);
     gSPEndDisplayList(POLY_OPA_DISP++);
     gSPEndDisplayList(POLY_XLU_DISP++);

ultramodern/events.cpp

@@ -274,7 +274,6 @@ uint32_t ultramodern::get_target_framerate(uint32_t original) {
 
     switch (graphics_config.rr_option) {
         case RT64::UserConfiguration::RefreshRate::Original:
-        case RT64::UserConfiguration::RefreshRate::OriginalDelay:
         default:
             return original;
         case RT64::UserConfiguration::RefreshRate::Manual: