diff --git a/src/system/math/Rot.h b/src/system/math/Rot.h
index d51ba3cf..f5636de2 100644
--- a/src/system/math/Rot.h
+++ b/src/system/math/Rot.h
@@ -21,7 +21,10 @@ void Invert(const Transform&, Transform&);
 void Interp(const Vector3&, const Vector3&, float, Vector3&);
 void Interp(const Hmx::Quat&, const Hmx::Quat&, float, Hmx::Quat&);
 void Interp(const Hmx::Color&, const Hmx::Color&, float, Hmx::Color&);
-void Interp(float, float, float, float&);
+
+inline void Interp(float f1, float f2, float f3, float& fres){
+    fres = f3 * (f2 - f1) + f1;
+}
 
 TextStream& operator<<(TextStream& ts, const Hmx::Quat& v);
 TextStream& operator<<(TextStream& ts, const Vector3& v);
diff --git a/src/system/rndobj/Anim.h b/src/system/rndobj/Anim.h
index 85e81d9f..3ff24754 100644
--- a/src/system/rndobj/Anim.h
+++ b/src/system/rndobj/Anim.h
@@ -29,7 +29,7 @@ class RndAnimatable : public virtual Hmx::Object {
     virtual bool Loop(){ return 0; }
     virtual void StartAnim(){}
     virtual void EndAnim(){}
-    virtual void SetFrame(float frame, float blend); // weak
+    virtual void SetFrame(float frame, float blend){ mFrame = frame; }
     virtual float StartFrame(){ return 0.0f; }
     virtual float EndFrame(){ return 0.0f; }
     virtual Hmx::Object* AnimTarget(){ return this; }
@@ -55,8 +55,8 @@ class RndAnimatable : public virtual Hmx::Object {
     float FramesPerUnit();
     bool ConvertFrames(float&);
 
-    float mFrame;
-    Rate mRate;
+    float mFrame; // 0x8
+    Rate mRate; // 0xc
 };
 
 class AnimTask : public Task {
diff --git a/src/system/rndobj/Cam.h b/src/system/rndobj/Cam.h
index 1466fd32..25af1457 100644
--- a/src/system/rndobj/Cam.h
+++ b/src/system/rndobj/Cam.h
@@ -33,6 +33,10 @@ class RndCam : public RndTransformable {
     DataNode OnSetZRange(const DataArray*);
     DataNode OnSetScreenRect(const DataArray*);
     DataNode OnFarPlane(const DataArray*);
+    
+    float NearPlane() const { return mNearPlane; }
+    float FarPlane() const { return mFarPlane; }
+    float YFov() const { return mYFov; }
 
     static RndCam* sCurrent;
     NEW_OBJ(RndCam)
diff --git a/src/system/rndobj/CamAnim.cpp b/src/system/rndobj/CamAnim.cpp
index 174d5c4a..85c853f8 100644
--- a/src/system/rndobj/CamAnim.cpp
+++ b/src/system/rndobj/CamAnim.cpp
@@ -51,10 +51,31 @@ void RndCamAnim::Replace(Hmx::Object* from, Hmx::Object* to){
     }
 }
 
+// fn_805CE7DC
+void RndCamAnim::SetFrame(float frame, float blend){
+    RndAnimatable::SetFrame(frame, blend);
+    if(mCam){
+        if(!FovKeys().empty()){
+            float ref = mCam->YFov();
+            FovKeys().AtFrame(frame, ref);
+            if(blend != 1.0f){
+                Interp(mCam->YFov(), ref, blend, ref);
+            }
+            mCam->SetFrustum(mCam->NearPlane(), mCam->FarPlane(), ref, 1.0f);
+        }
+    }
+}
+
 float RndCamAnim::EndFrame(){
-    Keys<float, float>& theKeys = mKeysOwner->mFovKeys;
-    if(!theKeys.empty()) return theKeys.back().frame;
-    else return 0.0f;
+    return FovKeys().LastFrame();
+}
+
+// fn_805CE930
+void RndCamAnim::SetKey(float frame){
+    if(mCam){
+        const float& val = mCam->YFov();
+        FovKeys().Add(val, frame, true);
+    }
 }
 
 RndCamAnim::~RndCamAnim(){
diff --git a/src/system/rndobj/CamAnim.h b/src/system/rndobj/CamAnim.h
index 599c4baf..74a6875c 100644
--- a/src/system/rndobj/CamAnim.h
+++ b/src/system/rndobj/CamAnim.h
@@ -23,6 +23,8 @@ class RndCamAnim : public RndAnimatable {
     virtual void Replace(Hmx::Object*, Hmx::Object*);
     virtual void Print();
 
+    Keys<float, float>& FovKeys() { return mKeysOwner->mFovKeys; }
+
     DECLARE_REVS;
     NEW_OVERLOAD;
     DELETE_OVERLOAD;
@@ -31,9 +33,9 @@ class RndCamAnim : public RndAnimatable {
         REGISTER_OBJ_FACTORY(RndCamAnim)
     }
 
-    ObjPtr<RndCam, ObjectDir> mCam;
-    Keys<float, float> mFovKeys;
-    ObjOwnerPtr<RndCamAnim, ObjectDir> mKeysOwner;
+    ObjPtr<RndCam, ObjectDir> mCam; // 0x10
+    Keys<float, float> mFovKeys; // 0x1c
+    ObjOwnerPtr<RndCamAnim, ObjectDir> mKeysOwner; // 0x24
 };
 
 #endif