(50G) [HPGCC3] DRAW3DMATRIX replacement with grayscale surfaces, proof of concept

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Oof, someone dug this old topic up. Didn't expect that, but I'm glad to see that someone is interested.

ex3 is the standard extension for HPGCC3's binaries. They are not compressed or anything, so you just put them on your calculator like any other program, but you need to have an HPGCC3-modified ROM on the calculator to run it.
Unfortunately the modified ROM cannot be distributed because it's obviously derived from the (copyrighted) standard ROM, so you'll have to build it yourself...

The installation instructions on the HPGCC3 website are moderately up-to-date - the rant in the first post of this topic doesn't apply anymore, but I have some fixes you'll probably need. If you don't mind installing Linux for this (doesn't have to be directly on your hardware, a virtual machine is fine), and if you aren't afraid of typing a few commands in a Linux terminal, then I'll happily walk you through the process.