Yes, have bug report to e-mail (hikmetkoyuncuproducts@gmail.com)

No, but we strongly recommend you, because this will make it very easy to use. But if you don't want install add-ons, then you can easily link or append nodes to in your scene.

You can find this information at the Installation Guide.

We believe in empowering the Blender community of artists and this is our way of making it accessible to everyone - students and professionals alike.

Absolutely! You're free to do this as long as you don't sell and/or redistribute the nodes in the raw format and claim exclusive ownership.

VSHADE contains 376 nodes.

For professionals, time is money. Creating a realistic material generally too hard and time consuming. An average scene has many objects, and each object has at least one material. When we start create materials for all of this objects, this takes much much more time. When you have to repeat this action for every scene, every time you need to waste your time. And time is money.

For amateurs, I think there are master artists who are great at creating materials! I can not understand how they do it. But I want to create great materials and great scenes too. How can I do? Blender's shader system can be too complicated when I want create realistic materials. I want create realistic materials easily and I don't want my shader setup turns like spider web.