Changed: #1469 Correction of the algorithm to compute the current look at direction

--HG--
branch : gsoc2012-fabien

code/ryzom/client/src/camera_animation_manager/camera_animation_step_player_factory.cpp

@@ -140,11 +140,8 @@ NLMISC::CVector ICameraAnimationStepPlayer::computeCurrentLookAtDir(float ratio,
 	// We multiply this vector by the ratio so that we can have a vector that represent the current position we are looking at
 	startToFinal = startToFinal * ratio;
 
-	// We compute the position we are looking at
+	// We compute the direction we are looking at
-	NLMISC::CVector currLookAtPos = startDir + startToFinal;
+	NLMISC::CVector currLookAtDir = startDir + startToFinal;
-
-	// We compute the direction
-	NLMISC::CVector currLookAtDir = currLookAtPos - currPos;
 	currLookAtDir.normalize();
 
 	return currLookAtDir;

code/ryzom/client/src/camera_animation_manager/camera_animation_steps_players.cpp

@@ -82,14 +82,11 @@ public:
 
 		float ratio = currCamInfo.ElapsedTimeSinceStartStep / getDuration();
 
-		// We compute the starting look at direction
-		NLMISC::CVector startDir = currCamInfo.CamLookAtDir - currCamInfo.CamPos;
-
 		// We compute the final look at direction
 		NLMISC::CVector finalDir = resolvePositionOrEntityPosition(LookAtPos) - currCamInfo.CamPos;
 
 		// We get the current look at direction
-		camInfo.CamLookAtDir = computeCurrentLookAtDir(ratio, camInfo.CamPos, startDir, finalDir);
+		camInfo.CamLookAtDir = computeCurrentLookAtDir(ratio, camInfo.CamPos, currCamInfo.CamLookAtDir, finalDir);
 
 		return camInfo;
 	}