Place the mod you have just downloaded (.jar file) into the Mods folder.Open the folder Application Support and look for Minecraft. On mac open finder, hold down ALT and click Go then Library in the top menu bar.On windows open Run from the start menu, type %appdata% and click Run.Locate the minecraft application folder.Make sure you have already installed Minecraft Forge.Only worry about the animations of your own renderers.Attach additional renderers wherever you want.
Smart Render Mod 1.8.9/1.7.10 replaces the player renderer and all its models with a system that much more follows the pattern of a “scene graph” than the standard Minecraft player renderer and its standard Minecraft models and therefore enables the creation of much more complex animations using much less code.