[CSC 415] Lab Fixed

[Andrew J. Pounds]

The lab should be ready to go for the FPS and OSD stuff.  If you run 
into problem on you own computer with compiling the GL code, then here 
are the steps I had to follow:

1. make sure all of your graphics card drivers are up to date

2. make sure that you have the most recent OpenGL libraries and header 
files that your particular distribution will allow.

Here is the big problem -- all of these new things we are doing with 
shaders hinge on the system recognizing the newer extensions and 
functions (especially beyond OpenGL 4.3).  The problem we had in the 
labs was that everything was up do date except that the GLEW library was 
ONLY recognizing functions found in OpenGL 4.3 and earlier.  These were 
header files and libraries that are maintained along with the 
distribution.  That's why the lab systems (running CentOS 7) would not 
run the code but my home systems (running Rocky 8) would.  Anyway, I 
dowloaded the source code for GLEW and built it from scratch and 
installed it on each of the systems over the old version of GLEW.  
Everything seems to be working fine now.  I can't wait to see what 
breaks when we turn on lighting!

I should have code and examples and a video on how to do the OSD display 
to you in the next day or so.  I have tried to keep the same philosophy 
as with the FPS display and made individual pieces that you can add you 
code -- but I did some cool stuff with the vertex shader this time that 
I think you will find useful.

Oh -- and the mistakes you can make on this can KILL performance.  I'll 
show you that too...



-- 
*Andrew J. Pounds, Ph.D.*
/Professor of Chemistry and Computer Science/
/Director of the Computational Science Program/
/Mercer University, Macon, GA, 31207 (478) 301-5627 /
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://theochem.mercer.edu/pipermail/csc415/attachments/20230322/43de5c60/attachment.html>