Question
"Rendering" is the term used to say "making a picture from the data",
"modeling" is the creation of objects and their motions, and "ray tracing"
is a very particular kind of rendering that attempts to achieve realistic
images by computing the color of each pixel by tracing the path of an
imaginary light ray from your eye into the scene, hopefully determining the
right color by finding the object it hits, and then following *that* ray as
it bounces to other objects and light sources…