Yeah, thought github link was enough, but here it is: 
 
public static void registerRender(Block block, int meta, String fileName) 
{
	Item item = Item.getItemFromBlock(block);
	Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(item, meta,
			new ModelResourceLocation(modid + ":" + fileName, "inventory"));
	System.out.println(modid + ":" + fileName);
}