This article tells you how to get bone position of a skeleton's ref pose.

This article briefly tells you some issues I discovered about sub anim input node in UE 4.23.

This article tells you how to get access to skeletalmesh vertices in UE4.

This article introduces the animation framework in ue4, in a programmer's perspective.

This article tells you something about SAP(sweep and prune) for scene collision detection.

This article tells you how GJK algorithm is applied for collision detection.

This article tells you something about physX scratch buffer in Unity.

These are some learning notes about Smashing the Stack while taking the course `Introduction to Cyber Security` on Coursera.

This article tell you how axis division number effect blendspace in Unreal Engine 4.

This article give details about 2D blend types in Unity animation blend tree node.