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Hi there,
i have a problem with csg-objects. I have created an object with spatch,
imported it as mdl and wanted to combine it with another object in order
to make a hole into the spatch-object. Tried it with csg in moray, but
it doesn't work. Povray told me, no csg with patches allowed. Is there
any possibility to manage it?
Hope, someone can help me....
best wishes,
Bob
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: Povray told me, no csg with patches allowed.
That's right.
It's because povray can't determine whether a point is inside a patch or
not.
Megapov can do it for triangle meshes. I wonder if it works for patches.
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
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Warp schrieb:
> : Povray told me, no csg with patches allowed.
>
> That's right.
> It's because povray can't determine whether a point is inside a patch or
> not.
>
> Megapov can do it for triangle meshes. I wonder if it works for patches.
>
Thanks for the hint.
I'm not familiar with megapov (what is it?). Sorry for my ignorance. Trying to
download it.
bob
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news:39491122.213EA2AC@exmail.de...
|
| > : Povray told me, no csg with patches allowed.
| >
| > That's right.
| > It's because povray can't determine whether a point is inside a patch or
| > not.
| >
| > Megapov can do it for triangle meshes. I wonder if it works for patches.
| >
|
| Thanks for the hint.
| I'm not familiar with megapov (what is it?). Sorry for my ignorance. Trying
to
| download it.
It will always warn but it can still do a 'difference' although it turns out
like a 'clipped_by' instead, i.e. no surface at the intersection. This is
true in MegaPov 0.5a as well, the URL leading to MegaPov is:
http://www.nathan.kopp.com/patched.htm
Bob
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> i have a problem with csg-objects. I have created an object with spatch,
> imported it as mdl and wanted to combine it with another object in order
> to make a hole into the spatch-object. Tried it with csg in moray, but
> it doesn't work. Povray told me, no csg with patches allowed. Is there
> any possibility to manage it?
>
> Hope, someone can help me....
About the only sensible way to have a hole in a patch object is to build
your patch object with the required hole already in it...
Of course, this may not class as 'help' :)
Bye for now,
Jamie.
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if you go to the images newsgroup, you can find my recent xwing pics.
the fuselage and nose cone were made in spatch, exported as a dxf
(triangles) imported into 3ds max where all i did was make sure the
normals were pointing the right way, then exported as a 3ds file, and
finally converted into a udo. then by hand, in the inc file that was
made in the udo process, i added the inside_vector needed for megapov to
make it a solid mesh. with this solid mesh i was able to cut things out
including the square hole the wings go into, the cockpit, and many fine
details. it isn't perfect however, and when i get some time, i am going
to go back into spatch and build the holes into the original. i just
wish spatch was able to have more precise entry of nodes. does anyone
know if hamapatch does?
>
> Hi there,
> i have a problem with csg-objects. I have created an object with spatch,
> imported it as mdl and wanted to combine it with another object in order
> to make a hole into the spatch-object. Tried it with csg in moray, but
> it doesn't work. Povray told me, no csg with patches allowed. Is there
> any possibility to manage it?
>
> Hope, someone can help me....
>
> best wishes,
>
> Bob
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Bob Hughes <per### [at] aolcom?subject=pov-news:> wrote:
: It will always warn but it can still do a 'difference' although it turns out
: like a 'clipped_by' instead, i.e. no surface at the intersection.
I think that it's caused because a mesh and a patch will always say that
a point is outside. In megapov there's a patch that can determine whether
a point is inside or outside the mesh (I wonder how slow it is because it
does ray-mesh intersection tests).
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
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