gamedevlists-windows

[GD-Windows] From OGL To D3D

[Dave S. <dav...@sd...>]

Before I embark on this great quest of porting some of my code
from OGL to D3D, I would like to know if there are any good
sites that discuss this issue.

I tried googling it, but I end up in holy war debates.  That's not
what I'm interested in.  I just want to know of tricks, traps, and
other migration issues to watch out for to help me on my journey.

Also, it could help me better design some of my code.

Thanks in advance,
-DaveS

Re: [GD-Windows] From OGL To D3D

[Brian H. <bri...@py...>]

At 11:49 AM 2/8/2002 -0500, Dave Smith wrote:
>Before I embark on this great quest of porting some of my code
>from OGL to D3D, I would like to know if there are any good
>sites that discuss this issue.

No sites, unfortunately, at least that I'm aware of.

If you're targeting DX8, then the transition should be fairly smooth 
(depending on how much OGL you were using).  Most of the state stuff has 
direct analogs.  Probably the biggest area of confusion for me was making 
sure my matrices were matching correctly.  I don't remember the exact 
details, but it took some trial and error before I figured out how to map 
an OpenGL projection matrix to the D3D one.

Brian