On Wed, 23 Jun 1999 14:12:31 -0700, Jerry wrote:
>In <377### [at] compuservecom>, Chris Huff
><Chr### [at] compuservecom> wrote:
>>use it.). But what I really need is an explanation of the program source
>>code, not the scene description language.(There seem to be many
>>commented forms in the source to describe the various functions, but
>>most of them are empty!)
>
>I'd recommend going to Ron Parker's web page at
>http://www2.fwi.com/~parkerr/traces.html and download his "object bounds"
>patch. It is one of the simplest patches I've seen (and also the most
>useful for my work); once you've figured out how to install that, you
>should have an idea of how to make another simple source patch.

It's fine as an example of modifying the tokenizer and the expression
parser, but it doesn't shed much light on the parser in general, or on
the hows and whys of adding textures and objects.

It's also a 3.0-only patch, so it's not even the state of the art (adding
tokens in 3.1 is much simpler.)

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