Transition walking-zombie look good.

src/AnimNodes/AnimSamplerNode.cc

@@ -23,10 +23,9 @@ void AnimSamplerNode::SetAnimation(ozz::animation::Animation* animation, const S
 void AnimSamplerNode::Evaluate(
     ozz::vector<ozz::math::SoaTransform>* local_matrices) {
   ozz::animation::SamplingJob sampling_job;
-  float ratio = m_sync_track.CalcRatioFromSyncTime(m_anim_ratio);
   sampling_job.animation = m_animation;
   sampling_job.cache = &m_sampling_cache;
-  sampling_job.ratio = ratio;
+  sampling_job.ratio = m_anim_ratio;
   sampling_job.output = make_span(*local_matrices);
   if (!sampling_job.Run()) {
     ozz::log::Err() << "Error sampling animation." << std::endl;

src/AnimNodes/AnimSamplerNode.h

@@ -38,10 +38,9 @@ struct AnimSamplerNode : public AnimNode {
     m_current_time += dt;
     if (!m_override_ratio) {
       if (m_is_time_synced) {
-        m_anim_ratio = fmodf((float)m_current_time, 1.0f);
+        m_anim_ratio = m_sync_track.CalcRatioFromSyncTime(m_current_time);
-        m_current_time = m_anim_ratio;
       } else {
-        m_anim_ratio = fmodf((float)m_current_time / m_sync_track.m_duration, 1.0f);
+        m_anim_ratio = fmodf((float)m_current_time / m_animation->duration(), 1.0f);
       }
     }
 

src/AnimNodes/BlendNode.cc

@@ -49,7 +49,9 @@ void BlendNode::Evaluate(ozz::vector<ozz::math::SoaTransform>* local_matrices) {
 }
 
 void BlendNode::DrawDebugUi() {
-  ImGui::SliderFloat("Weight", &m_weight, 0.f, 1.f);
+  if (ImGui::SliderFloat("Weight", &m_weight, 0.f, 1.f)) {
+    m_sync_track = SyncTrack::Blend(m_weight, m_input_A->m_sync_track, m_input_B->m_sync_track);
+  }
   ImGui::Checkbox("Sync Inputs", &m_sync_inputs);
 
   ImGui::Text("SyncTrack");

src/AnimNodes/BlendNode.h

@@ -45,20 +45,11 @@ struct BlendNode : public AnimNode {
 
   virtual void UpdateTime(float dt) {
     if (m_is_time_synced) {
-      float current_time_absolute = fmodf(m_current_time * m_sync_track.m_duration + dt, 1.0f);
+      m_current_time = fmodf(m_current_time + dt, m_sync_track.m_duration);
-      float current_sync_time = m_sync_track.CalcSyncFromAbsTime(current_time_absolute);
+      float current_sync_time = m_sync_track.CalcSyncFromAbsTime(m_current_time);
-      m_current_time = m_sync_track.CalcRatioFromSyncTime(current_sync_time);
 
-      float time_absolute_A = fmodf (m_input_A->m_current_time * m_input_A->m_sync_track.m_duration, 1.0f);
+      m_input_A->UpdateTime(current_sync_time - m_input_A->m_current_time);
-      float sync_time_A = m_input_A->m_sync_track.CalcSyncFromAbsTime(time_absolute_A);
+      m_input_B->UpdateTime(current_sync_time - m_input_B->m_current_time);
-      float m_ratio_A = m_input_A->m_sync_track.CalcSyncFromAbsTime(sync_time_A);
-      
-      float time_absolute_B = fmodf (m_input_B->m_current_time * m_input_B->m_sync_track.m_duration, 1.0f);
-      float sync_time_B = m_input_B->m_sync_track.CalcSyncFromAbsTime(time_absolute_B);
-      float m_ratio_B = m_input_B->m_sync_track.CalcSyncFromAbsTime(sync_time_B);
-      
-      m_input_A->UpdateTime(current_sync_time);
-      m_input_B->UpdateTime(current_sync_time);
     } else {
       m_current_time += dt;
       m_input_A->UpdateTime(dt);

src/AnimationController.cc

@@ -17,7 +17,7 @@
 #include "SkinnedMesh.h"
 
 AnimationController::AnimationController(SkinnedMesh* skinned_mesh)
-    : m_current_time(0.f), m_paused(false), m_skinned_mesh(skinned_mesh) {
+    : m_current_time(0.f), m_paused(true), m_skinned_mesh(skinned_mesh) {
   const int num_soa_joints = skinned_mesh->m_skeleton.num_soa_joints();
   const int num_joints = skinned_mesh->m_skeleton.num_joints();
   skinned_mesh->m_local_matrices.resize(num_soa_joints);
@@ -32,7 +32,7 @@ AnimationController::AnimationController(SkinnedMesh* skinned_mesh)
 
   AnimSamplerNode* sampler_node1 = new AnimSamplerNode(this);
   sampler_node1->m_name = "AnimSampler1";
-  sampler_node1->SetAnimation(skinned_mesh->m_animations[2], skinned_mesh->m_animation_sync_track[1]);
+  sampler_node1->SetAnimation(skinned_mesh->m_animations[2], skinned_mesh->m_animation_sync_track[2]);
   m_anim_nodes.push_back(sampler_node1);
 
 //  SpeedScaleNode* speed_node = new SpeedScaleNode(this);
@@ -52,10 +52,11 @@ AnimationController::AnimationController(SkinnedMesh* skinned_mesh)
   speed_node1->m_input_node = blend_node;
   m_anim_nodes.push_back(speed_node1);
 
-//  LockTranslationNode* lock_node = new LockTranslationNode(this);
+  LockTranslationNode* lock_node = new LockTranslationNode(this);
-//  lock_node->m_name = "LockNode0";
+  lock_node->m_name = "LockNode0";
-//  lock_node->m_locked_bone_index = 0;
+  lock_node->m_locked_bone_index = 0;
-//  lock_node->m_input = speed_node1;
+  lock_node->m_input = speed_node1;
+  m_anim_nodes.push_back(lock_node);
 
   m_output_node = m_anim_nodes.back();
 

src/SyncTrack.h

@@ -11,6 +11,14 @@
 constexpr int cSyncTrackMaxIntervals = 8;
 
 struct SyncTrack {
+  SyncTrack() : m_duration(0.f), m_num_intervals(0) {
+    for (int i = 0; i < cSyncTrackMaxIntervals; i++) {
+      m_sync_markers[i] = 0.f;
+      m_interval_ratio[i] = 0.f;
+      m_interval_ratio[i] = 0.f;
+    }
+  }
+
   float m_duration;
   int m_num_intervals;
   float m_sync_markers[cSyncTrackMaxIntervals];