Where to create fine and smooth idle human animation?

Did I need other software like blender or cinema 4D or inside of Unity?

I tried to found tutorial to learn and make but looks imposible to create
fine and smoooth animation of body inside unity?

 

Yeah generally you would use Blender, Cinema 4d, 3ds Max or whatever 3d software you prefer. Then you would do the character modelling and animations within that software and export them with the model ready for unity

 

Another option is to generate the animation using motion capture software such as Cinema Mo-Cap. Cinema Mo-Cap is nice because it works directly in Unity but you can export to other applications such as Blender if you need to touch up the clips. They're still working on dual-camera support, though, so you can't capture some motions yet.

 

I made some test animation in Blender, but was impossible for me to upload in unity and to use it.
Dont know why. Looks like something is wrong. Can I just import animation or model with animation is the rule?

 

Is there an error or something? Maybe there something wrong with your export settings?