less lag - alpha or transparent ?

Gday

One of my most useful textures is the AAclear texture...is is a single pixel I think of alpha clear.

I use this on sides of object to create seamless joins among partially taransparent objects and remove unsighlty lagged edges on picture frames etc.

My question is :

Which method causes less lag ?

1. An Alpha clear texture of 1 pixel applied to a face

or

2. Selecting the texture on one face - select blank texture - tranparency 100%

or is there no difference in performance issues ???

Since you can't select transparency of 100%, the alpha'd texture is better. As far as lag goes, they should be equivalent -- the alpha texture will be slightly slower to download, but if you've got a fast enough connection to play SL, you'd never notice it.

You can't set transparency to 100%. It maxes out at 90%. So if you want completely transparent, a dedicated texture is the only way to go.

You might want to make sure the invisible face has UV sizes of 1,1... It might erg out a tiny fraction of additional speed, but not enough to worry about really.