add opengl support

[chaz/rasterize] / README

diff --git a/README b/README
index b5f29c8640b4648b764b326eae98823f01ee57b2..1c34ba15f13380c9d6d89201d7624d3b72161e14 100644 (file)
--- a/README
+++ b/README
@@ -3,14 +3,24 @@ CS5600 University of Utah
 Charles McGarvey
 mcgarvey@eng.utah.edu
 
-Project 2 Notes
+Project 4 Notes
 
-To build, just `make' it.  You will need GNU make; it won't work well with any
-other kind of make(1).  Once built, the executable is called rasterize.  The
-default options should meet the assignment specification.
+To build, just `make' it.  You will need GNU make; it won't work well with
+any other kind of make(1).  Once built, the executable is called rasterize.
+
+Caveats:
+
+1. All the mangling to get the data into a form that OpenGL likes happens
+in the draw function, so it's slow.
+
+2. The shaders do Phong lighting and texture mapping, but only two lights
+are supported at a time since that's all my laptop can do with the drivers
+I'm currently using.
+
+3. The PPM importer doesn't handle comments, and the BMP importer is also
+quite picky about the depth and color space.  Of course, importing will
+fail without any useful explanation.
 
 Known to run on:
- * Linux 3.2.1-gentoo
- * NetBSD 5.1.2
- * Darwin 10.8.0 (in the Mac lab)
+ * Linux 3.2.1-gentoo (x86_64)