In tutorial 16 > class ObjLoader > Line 307, 308, 309, I get weird splitting.
The string to split is 3/5/5 (for example) > After splitting is 3/5, and could not calculate int.Parse(indices[0]) - vertexOffset.
I was wondering, was that working for you? Because I exported an objs from 3ds max. There were some problems like additional spaces in the obj (where should not excisted), but this issue is in the code. And I was wondering is Tutorial 16 still in construction or is it complete? I am on vacation now, but when I get home, I will try the objs from the link you gave to the previous issue. Thanks.

I'm trying to modify tutorial 5 so that the edges of the cube are always the same color, regardless of the color of each face of the cube. Something like this:

How could I achieve this? I've been struggling for hours now

All tutorials run except #16 Could not find a part of the path '...\OpenGLTutorial16\OpenGLTutorial16\bin\Debug\enterprise\enterprise.obj'. The obj doesn't seem to exist in any directory.

i couldn't detect the cause of the bug but bug is in your OnMove function x or y gets 1 above or below the value of downX/Y and it doesn't send mouse to the downX/Y cordinates so it increases yaw and pitch. i just modified the condition like this:
if((x == downX && y == downY) || Math.Pow((downX - x), 2) + Math.Pow((downY - y), 2) < 16) return;

and it works. i hope it helps

you can see problem here:
http://pastebin.com/9xRZHipQ

I'm taking a look at tutorial 15. I'm wondering how I could set the default camera zoom (or perspective) for the cube to take all avaiable screen space (without overflow).

I'm aiming to achieve something like this:

In provided code, I would have to press "W" until the zoom makes the cube take all available screen height. Is it a way to set this default zoom dinamically taking into account the cube size so it always take all screen height or width without overflowing?

the values in Quaternion class go over the max value resulting in scaling of the object