Re: [SPAM: 6.000] Re: [pygame] How do I make a image transparent?

[Ethan Glasser-Camp <glasse@xxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Ulf Ekström wrote:
> If you do software surface blitting you can speed up the alpha
> blending a lot by using RLE encoding of the transparent surface. I
> suppose there is special code in there for the case of completely
> transparent or completely opaque pixels. You can use it with by doing
> something like surface.set_alpha(0, pygame.RLEACCEL), but I must admit
> I have only used this with the C SDL functions, so perhaps someone can
> fill in the details. The '0' is ignored when the the surface has per
> pixel alpha.
> 
> You can generate the soft edges by asking your artist to draw the
> sprites in high resolution, on a transparent background, and then
> scale them down.

If it involves soft edges, doesn't it involve per-pixel alpha?

I think I need to compile some benchmarks of these approaches. (Thanks
for the RLE suggestion though, I never heard of it.)

Ethan
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFG6qoShRlgoLPrRPwRAg4LAKDW+ptlT1/CfDA0lIyoT9X6pdRXigCghptb
df/aR/uVCiFdHiWqiTa6hhY=
=Sl0K
-----END PGP SIGNATURE-----