Artstation - Introduction to Gaea
https://www.artstation.com/learning/courses/QJg/introduction-to-gaea

In this course, Kem Yaralioglu will cover the fundamental nodes used for terrain creation in Gaea. This is a brief overview of all of the common nodes that he uses frequently to create landscapes. This will not necessarily cover how to create a production level landscape but will cover how to use the nodes together. This course is designed to provide a solid base for navigating, understanding, and using Gaea.

Artstation - Introduction to Houdini - Procedural Scattering & Houdini in UE4
https://www.artstation.com/learning/courses/rv9/introduction-to-houdini-procedural-scattering-houdini-in-ue4

In this course, Kem Yaralioglu shows how to prepare and use HDA inside UE4. He covers the scattering node and how to expose parameters that can then be updated in-editor. This will not necessarily cover how to create a production level landscape but will cover how to use the scatter node and how HDA’s work.

Artstation - Introduction to Houdini - Generating Terrain
http://www.artstation.com/learning/courses/x3J/introduction-to-houdini-generating-terrain

In this course, Kem Yaralioglu covers the fundamental nodes used for terrain creation inside Houdini. This course is a brief overview of all of the common nodes that are used frequently to create landscapes. This class covers how to use the nodes together on your way to learning how to create a production level landscape.

In this course, Javier Perez takes you through the basic UI of Substance Designer. This is an entry-level course that will familiarize you with the tools and panels of software and equip you with the knowledge needed to begin creating materials and learning from other courses on Substance Designer. If you are new to Substance Designer, this is where your journey begins!

ArtStation - Creating Materials in Unreal Engine - Part 1 - Introduction to the UE4 Material Editor

https://www.artstation.com/learning/courses/kLJ/introduction-to-the-ue4-material-editor

Part 1 of 5. In this five-part series, Kem Yaralioglu breaks down his process for creating master materials, terrain shaders as well as some advanced materials in Unreal Engine. With the help of Material Functions, each shader is fully scalable, allowing the artist to build upon the foundation that they create throughout production. In this first part of a five-part series, Kem covers all of the necessary knowledge required to navigate and work with the UE4 Material Editor.

http://www.artstation.com/marketplace/p/xA2qz/switching-to-maya-for-game-artists

 This course will be a bit different than most of our courses. In this course, we will focus on how to switch to Maya for game artists from any other 3d software like blender or 3ds max. Now the reason I say for game artists is because I will mostly be focused on the modeling and texturing side of Maya. This means we will not be covering things like animation, rendering, or simulations.