4 ms·

If I’m not mistaken, for your last paragraph, general visibility tests for lines that does not otherwise involve actual rendering is typically just called ray c

• dahart 8y ago
  You’re not mistaken, ray casting would be more common, but ray tracing is also used. This is especially true among people that design path tracing renderers where we consider “ray tracing” to be a visibility primitive. “Trace a ray” and “cast a ray” are synonymous. I also think using “ray tracing” for visibility might start become more popular now with RTX hardware since the “ray tracing” hardware only provides the visibility test, not a renderer.