On Jul 1, 10:31 pm, Miss Elaine Eos <M...@[EMAIL PROTECTED]
>
wrote:
> In article <1183323712.231134.54...@[EMAIL PROTECTED]
>,
>
> b...@[EMAIL PROTECTED]
wrote:
> > I am working on some software rendering code that does triangle
> > rasterization. I am testing by creating a quad comprised of two
> > triangles. However, there is a clear seam where the triangles
> > meet. The seam is caused by certain pixels not getting filled
> > in. Is there a standard way of getting rid of this?
>
> This is almost certainly a rounding/FP problem. The standard ways to
> fix it are to (a) adjust your rounding algorithms and/or (b) over-draw
> your triangles by a pixel on one or both ends (which is really just
> another way of adjusting your rounding.)
>
> Write a program that draws different triangles to see what the actual
> effect is. You'll likely notice a pattern, and be able to deduce a fix
> from that. It's not uncommon for this to be an off-by-one bug, or for
> the solution to be the apparent introduction of one.
>
> --
> Please take off your pants or I won't read your e-mail.
> I will not, no matter how "good" the deal, patronise any business which
sends
> unsolicited commercial e-mail or that advertises in discussion
newsgroups.
I implemented top-left fill convention, and there were still seams.
Then I changed float to double, and it worked.
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