SciD: the humble beginning

[Simen kjaeraas]

Bill Baxter <wbaxter at gmail.com> wrote:

> Biggest problem with OpenGL is that the quality is crap for 2D stuff,
> and quality really matters when you're trying to do something like
> draw 2000 little markers on a plot and each is only 5 pixels wide.
>
> Best you can do right now with GL without a lot of contortions is
> something like 16x oversampling, but that only works on fairly recent
> / high-end cards (no chance on an intel integrated chipset, for
> instance).  With analytical antialiasing you get 256 levels (vs just
> 16 with hardware AA).  The quality difference is very noticeable,
> especially on plots with lots of fine lines and tiny markers.

You might get away with generating textures at 2-4 times the wanted
resolution, and generate mipmaps for the texture, then read from the
mipmap. Somewhat of a roundabout way of getting the image, but unless
you're using huge textures, it should work. (And even if you're using
huge textures, you can split the job. )

-- 
Simen