I believe I have solved the tesselation bug...
More on that later, but before exposing my solution and myself to ridicule, 
I would like to test it with some scenes whose tesselation previously failed
 (well, not really failed, just a bogus mesh).

I did my experiment on a bogus cylinder I once get, and
all I could find is the tesselation of the moving sphere on the
patch page (and also the newsgroup).

So, does anyone have some bogus generated mesh that I could try ?
(Possibly only with object from 3.1, because I have not Megapov installed,
so no isosurface, please).

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> 
> So, does anyone have some bogus generated mesh that I could try ?
> (Possibly only with object from 3.1, because I have not Megapov installed,
> so no isosurface, please).

I think isosurfaces would not be very good to prove things anyway, because
the whole isosurface intersection stuff is quite critical.

I don't have any specific object here you should try, but i think some
CSG's,  blobs and text objects would be good examples to test.

I will save my congratulations until you reveal your solution. ;-)

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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I recall trying to tesselate BlobMan objects and the bug showing up there.

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

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Warp wrote:
> 
>   I recall trying to tesselate BlobMan objects and the bug showing up there.
> 

Any specific scene ?
I cannot try every values for the blobman parameters...,
I'm not immortal yet...

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Oo - can't wait!

BTW which version does it run on? 3.1, 3.5, Megapov .6, .7 ?

- Nekar


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Christoph Hormann wrote:
> 

> >
> > So, does anyone have some bogus generated mesh that I could try ?
> > (Possibly only with object from 3.1, because I have not Megapov installed,
> > so no isosurface, please).

> I don't have any specific object here you should try, but i think some
> CSG's,  blobs and text objects would be good examples to test.

I have done some tests with blobs already, but maybe not the Bogus blobs...
I have also my own set of test objects... BUT...
Given the fact that the initial bogus (sphere) only appeared when 
moving the sphere, I may very well miss a bogus case that someone
already know about. So, I would like to perform a kind of private beta
(with scene from other people, even if I'm not yet ready to publish
the correction
[before that, I need to gain confidence with my analysis 
of the cause of the problem {I'm nearly OK for the theory, and so far the 
scenes I tested where fine, but know problem scenes are the better}]

Thanks for the suggestion of ttf ! I missed that basic one, as well as CSG
(I played with torus, superellipsoid, cylinder and so on, but still missed the
basic CSG and ttf one! I would better reopen the pov manual and check with 
each finite solid primitive...

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Nekar Xenos wrote:
> 
> Oo - can't wait!

You will have to. At least a little.
(Anyway, for this weekend, you should have the next 3.5 beta to install,
 or otherwise it will be expired for everybody, 
so you will have something to do.)

> 
> BTW which version does it run on? 3.1, 3.5, Megapov .6, .7 ?
>

Currently, only MY personnal 3.1 derivative... on Linux. The patch code is 
not in a publishable state. But you will have the explanation sooner than the
code IF it is really the cause that I have isolated.

Maybe someone incorporated the initial patch of Warp (which was for
Megapov [UV mapping was required]) in a variant of Megapov ?

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news:3BBDD3B6.E11BF559@atosorigin.com...
> Nekar Xenos wrote:
> >
> > Oo - can't wait!
>
> You will have to. At least a little.
> (Anyway, for this weekend, you should have the next 3.5 beta to install,
>  or otherwise it will be expired for everybody,
> so you will have something to do.)
>
> >
> > BTW which version does it run on? 3.1, 3.5, Megapov .6, .7 ?
> >
>
> Currently, only MY personnal 3.1 derivative... on Linux. The patch code is
> not in a publishable state. But you will have the explanation sooner than the
> code IF it is really the cause that I have isolated.
>
Will it work on Windoze?

- Nekar


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Nekar Xenos wrote:
> Will it work on Windoze?
> 
Of course, when someone with the ZinZin compilation system will have
 incorporated it in whatever (Mega)Pov version.
There is no Linux dependancy, It's just that I only have the compiler for Linux.

Pov is portable. Pov is great.

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I look forward to seeing this patch working and integrated into the next
incarnation of megapov based on the 3.5 code as I belive it to be
potentially one of the most useful additions to Pov. So good luck, fingers
crossed.

Mick

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