RE: [Algorithms] Bullets on walls

[Gary M. <ga...@va...>]

Using overlay textures would require you to use a ton of unique textures. .
. can become very unreasonable quickly.

Gary

-----Original Message-----
From: Mark Wayland [mailto:mwa...@to...]
Sent: Thursday, July 20, 2000 9:55 PM
To: gda...@li...
Subject: Re: [Algorithms] Bullets on walls


An extension to Jaimi's method may be to render the bullet holes to an
overlay texture (of which you would have a maximum number) which is only
rendered *once* on-top of the wall. With complex texture mapping this is
obviously not possible, but perhaps for simple quads it would be acceptable
?

Perhaps some form of scalable solution - like use Jaimi's method for a small
number and when a threshold is reached, combine them into the single texture
as I've mentioned and repeat ... ??

Just my 2c worth ...

Mark

> In d3d, this is the way I do it:
>
> Create decals with a one pixel transparent border.
> Then, set the texture address mode to "Clamp".
> Calculate new UV coordinates for your decal based on the wall, instead
> of the Decal - then redraw the entire wall with your decal texture and
> new UV coordinates.
> This way you do not have to clip at all. I would assume you could
> do the same in OpenGL.
>
> Jaimi



_______________________________________________
GDAlgorithms-list mailing list
GDA...@li...
http://lists.sourceforge.net/mailman/listinfo/gdalgorithms-list