Re: [Celestia-developers] ring shadow bugs

[Pat S. <pa...@su...>]

Selden E Ball Jr wrote:
> It'd be nice if the ring shadow bugs could be fixed which are described
> at  http://www.shatters.net/forum/viewtopic.php?t=7681

It took me a while to figure out what he meant, but I think it's like in
my annotated version of his screenshot:

	http://pat.suwalski.net/celestia/misc/ringshadowbug.jpg

In other rendering-bug news, a lot of the problems with the open-source
ATI driver can be laid to rest. I haven't tried the open nvidia driver,
but I assume it's in similar condition. Most of the problems I was
getting were because of a lack of video memory (32M in my laptop):

  - Commercial drivers running out of memory, downsample light map:
    http://www.engsoc.org/~pat/celestia/misc/ATILightMapIssue.jpg

  - Open-source drivers out of RAM (they don't downsample):
    http://pat.suwalski.net/celestia/misc/opensource-ati-errors.jpg

However, this one is still an issue. I'm sure it's in the
implementation, but any guesses what's actually wrong so that I can file
a good bug?:

	http://pat.suwalski.net/celestia/misc/ATISaturnRings.jpg

Similar thing for Neptune. There does seem to be a hint of the ring
texture, so it's not completely messed.

--Pat