POV/Vivid conversions
4 messages in this thread
Syndesis Corporation makes InterChange Plus, a system of translators for many
3D modeling formats such as DXF, 3D Studio, Wavefront, LightWave, Imagine,
Sculpt, and many others. We're the "Hijaak" of 3D translations. InterChange
Plus is available on the Amiga now; we hope to be shipping the Windows version
later this year.
As a demonstration of our translation tools, we're producing a CDROM called the
"Syndesis 3D-ROM". It will be ready at the end of this month. It is a
collection of more than 500 3D models, all translated to several of the formats
we support, such as DXF and 3D Studio.
We've got most of the data ready for the first volume, but we want to explore
supporting POV and Vivid for future discs.
Our translator's internal database keeps a hierarchy of sub-objects
(parent-child, brother-sister, etc.) Each sub-object is composed of polygons.
(They could be triangles or more complex polygons; we have subroutines to
reduce to triangles.) Each polygon indexes into a table of surfaces, each
surface includes a name, a color, a reflected color, a transmitted (filter)
color, a specular color, a Kd diffuse coefficient for ambient color, glossiness
for shininess, a Ks specularity coefficient, a refraction index, bits for
luminous, wireframe and smooth settings. Each sub-object has a name, too.
I'd like to start a thread to discuss how we might best translate our internal
database to POV and Vivid formats.
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The translation to Vivid should be fairly simple. The only possible problem I
can see is that Vivid's input format tends to group primitives with the same
surface definition. This shouldn't be much of a problem. Translating the
other way may be more challenging. Feel free to contact me directly for
help/questions/input, etc. My home number is (206)641-8615 or I can be emailed
here.
Stephen Coy
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Within a sub-object, it's not hard for me to traverse the list of
polygons searching for facessimilarly-sucolored faces, and output them
sa as a group.in a series. I'll look at the Vivid docs.
/post
Message # 21239 posted
Within a sub-object, it's not hard for me to traverse the list of polygons
searching for similarly-colored faces, and output them in a series. I'll look
at the Vivid docs.
There is 1 Reply.
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The same issue might arrise in POV-Ray. If you do..
union {
object {… texture {…}}
object {… texture {…}}
object {… texture {…}}
object {… texture {…}}
}
it makes seperate copies of the texture for each object. If you do…
union {
object {…}
object {…}
object {…}
object {…}
texture {…}
}
it shares the texture among them all.
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