Re: [Plib-devel] texture repeating

[Steve B. <sjb...@ai...>]

"Curtis L. Olson" wrote:

> In ssg is there a way to control whether a texture is set to "repeat"
> or not?

Sure - that's the second and third parameters of ssgSimpleState::setTexture().
 
> I want to slap a texture down on top of a specific area and have the
> texture cover it completely ... texture coordinates of lower corner
> are (0,0), upper corner are (1,1), etc.

Yes - that's correct.
 
> Now, what I'm finding is that if I have a texture that is all black
> along one edge and all white along the other edge, I get some bleed
> across to the opposite edge ...

A classic problem - which setting non-repeating clamps will cure
completely.

> i.e. some of that white on one edge
> scrolls around and shows up on the opposite edge and visa versa for
> the black ... this makes it really ugly to piece together adjacent
> textures because you always can see the joint because of this bleed
> across.

Joining two textures is a harder problem...for which I wrote a FAQ:

   http://web2.airmail.net/sjbaker1/tiling_textures.html

> I'm assuming this is because the ssg textures are by default set to
> repeat, right?

Yes - by default they repeat because that's what most people want.
 
> Do you have any strategies you can share for avoiding this problem?

Check out the FAQ...I just re-read it and I think it covers everything.

It's all rather disappointing for the purist though.

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