Re: [isugamedev-devel] changing colors of textures

[Kevin M. <ke...@vr...>]

you'll need to choose modulate or blend (not decal) to make opengl blend
with the under laying color of the p[oly...

@--@---@---@----@-----@------@------@-----@----@---@---@--@
Kevin Meinert                                  __  _   __
http://www.vrac.iastate.edu/~kevn         \  ||  \| \ /  `
Virtual Reality Applications Center        \ ||.-'|--\\
Howe Hall, Iowa State University, Ames Iowa \||  \|   \`__,
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On Wed, 10 Apr 2002, Justin Hare wrote:

> Actually, if you set the polygon's color using glColor3f(...) you can
> significantly change the texture's color at runtime.
>
> What you could do is make one set of textures in grayscale, then use the
> glColor3f(...) calls to set the color it appears when rendered.
>
> For instance, if you had a white light, you can make the textured polygon
> appear blue with the grayscale texture by doing
> glColor3f( 0.0, 0.0, 1.0, 1.0 );
>
> Is that what you're trying to do?
>
> I'm thinking that if you have a green-ish texture to start off and do the
> same thing, you'll end up with a turquoise texture if you glColor it to
> blue. But if you use the grayscale textures, you'll have full control of
> the color shade they have when rendered.
>
>
> justin
>
> -----------------------------------------
> Justin Hare  <ja...@vr...>
> Virtual Reality Applications Center
> Iowa State University, Howe Hall
> http://www.vrac.iastate.edu
> -----------------------------------------
>
> On Wed, 10 Apr 2002, Josh Brown wrote:
>
> > Date: Wed, 10 Apr 2002 15:23:35 -0500
> > From: Josh Brown <br...@vr...>
> > To: game dev club developers <isu...@li...>
> > Subject: [isugamedev-devel] changing colors of textures
> >
> >
> > I am working on a simple game that is texturing polygons using mipmapping.
> > I have 4 textures drawn they all use 1 color, I need a copy of those
> > textures in a different color.  Is there a way to make openGL draw the
> > texture using a different color?  Is there a flag that when I call
> > glColor3f(...) sets the color of a texture map.  Or am I going to have to
> > settle for making a new set of the textures in the different color and
> > applying those instead of originals?
> >
> > Thanks
> > Josh
> >
> >
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> >
>
>
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