In this post I’m going to explain how to classify a point with respect a plane, that is, given a certain plane and a point, we will see how to decide whether the point is laying on the plane surface, or it is located on the positive or negative half-spaces defined by the plane.

# Monthly Archives: June 2015

# Extracting frustum planes from modelview-projection matrix

In this post I’m going to explain how to extract the parameters of each frustum plane in the local space of the object with a certain modelview-projection matrix. Knowing the frustum planes may be useful in some cases. The first one that comes to my mind is to perform frustum culling, which I will explain soon in a separated post.