This is the scene-file that demonstrates the problem with shiny bicubic
patches.
In the povray.binaries.images I have uploaded some graphics that show you
the location of the control points, to "prove" that the edges connect and
line-up smoothly.

This message belongs to "Re: Possible bug in shiny bicubic_patch (82kb)" in
povray.binaries.images and "Re: Possible bug in shiny bicubic_patch" in
povray.general

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Attachments:
Download 'object_view.zip' (3 KB) Download 'object_view.png' (10 KB)

Preview of image 'object_view.png'

Hi
I see in your code that you // commented flatness in your patches.
Did  You try with flatness 0? default is 0.001 and it lets sometimes patches
to follow slightly different curves and opens gaps.
Marc



3d830028@news.povray.org...
> This is the scene-file that demonstrates the problem with shiny bicubic
> patches.
> In the povray.binaries.images I have uploaded some graphics that show you
> the location of the control points, to "prove" that the edges connect and
> line-up smoothly.
>
> This message belongs to "Re: Possible bug in shiny bicubic_patch (82kb)"
in
> povray.binaries.images and "Re: Possible bug in shiny bicubic_patch" in
> povray.general
>
>
>

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According to docs the default is 0. See copy of help-file-text below.
I tried your suggestion anyway, but it doesn't solve the problem.

"As POV-Ray processes the Bezier patch it makes a test of the current piece
of the patch to see if it is flat enough to just pretend it is a rectangle.
The statement that controls this test is specified with the flatness keyword
followed by a float. Typical flatness values range from 0 to 1 (the lower
the slower). The default if none is specified is 0.0."

"Marc Jacquier" <jac### [at] wanadoofr> schreef in bericht
news:3d833ce4@news.povray.org...
> Hi
> I see in your code that you // commented flatness in your patches.
> Did  You try with flatness 0? default is 0.001 and it lets sometimes
patches
> to follow slightly different curves and opens gaps.
> Marc
>
>

> 3d830028@news.povray.org...
> > This is the scene-file that demonstrates the problem with shiny bicubic
> > patches.
> > In the povray.binaries.images I have uploaded some graphics that show
you
> > the location of the control points, to "prove" that the edges connect
and
> > line-up smoothly.
> >
> > This message belongs to "Re: Possible bug in shiny bicubic_patch (82kb)"
> in
> > povray.binaries.images and "Re: Possible bug in shiny bicubic_patch" in
> > povray.general
> >
> >
> >
>
>

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