GLM Reflect Function: Calculating Reflection Direction

glm::reflect is a function in the GLM library that computes the reflection direction for an incident vector and a surface normal. It takes in two parameters: the incident vector and the surface normal, both of which are 3D vectors. The function returns a 3D vector that represents the reflection direction of the incident vector off the surface with the given normal.

The glm::reflect function uses the following formula to compute the reflection direction: R = I - 2 * dot(N, I) * N

where R is the reflection direction, I is the incident vector, and N is the surface normal.

This function is often used in computer graphics and game development to simulate the reflection of light off of surfaces such as mirrors or water.