You probably will ask yourself, what is magento input renderer and I will explain. This is Magento php class which is in charge for “rendering” html form elements. In magento there are different classes for rendering, you can find them in next folder:/lib/Varien/Data/Form/Element. In this folder you will notice next classes for rendering: price, date, image and so on.
Let’s go with our example.
First of all, you should create magento setup file which will add new product attribute with custom frontend input render, example is below: