johns wrote: >> I think you have the term "ray tracing" confused with >> the concept opf a "vector-scan display." > Yes. What is the difference? Do these with Excel. http://www.giwersworld.org/artv/ http://www.giwersworld.org/artiv/ http://www.giwersworld.org/artiii/ http://www.giwersworld.org/artii/ Do anything like these in Excel. That is the difference. And I am not that good at it.
