This is not a reflective sphere over a checkered plane.

It is a cube, subdivided five times using the Catmull-Clark subdivision 
scheme.  There are 6144 faces in the resulting polygon mesh, which are 
rendered as 12288 triangles in POV-Ray.

I'm rewriting my surface subdivision macros to use the Catmull-Clark 
scheme because I am updating my modeler to use faces with more than four 
vertices.  Because the number of faces in the original mesh can vary 
quite a bit, the macros have to be completely rewritten from the ground 
up, and as you can see from this pic, I don't have normal interpolation 
implemented yet.  I also don't have texture mapping turned on, either.

When these are working and I've written the .INC file export in my 
modeler to match it, the new version (v1.7, which also supports .OBJ 
file import) will be released, and then I'll start work on a posing and 
key-framing and all that.

Regards,
John

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John VanSickle <evi### [at] hotmailcom> wrote:
> This is not a reflective sphere over a checkered plane.
>
> It is a cube, subdivided five times using the Catmull-Clark subdivision
> scheme.

oh, groovy...

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John VanSickle wrote:
> This is not a reflective sphere over a checkered plane.
> 
> It is a cube, subdivided five times using the Catmull-Clark subdivision 
> scheme.  There are 6144 faces in the resulting polygon mesh, which are 
> rendered as 12288 triangles in POV-Ray.

Nice RSCOCP!

> I'm rewriting my surface subdivision macros to use the Catmull-Clark 
> scheme because I am updating my modeler to use faces with more than four 
> vertices.  Because the number of faces in the original mesh can vary 
> quite a bit, the macros have to be completely rewritten from the ground 
> up, and as you can see from this pic, I don't have normal interpolation 
> implemented yet.  I also don't have texture mapping turned on, either.
> 
> When these are working and I've written the .INC file export in my 
> modeler to match it, the new version (v1.7, which also supports .OBJ 
> file import) will be released, and then I'll start work on a posing and 
> key-framing and all that.

I will be looking forward to this!

Sam

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John VanSickle <evi### [at] hotmailcom> wrote:
> This is not a reflective sphere over a checkered plane.
>
> It is a cube, subdivided five times using the Catmull-Clark subdivision
> scheme.  There are 6144 faces in the resulting polygon mesh, which are
> rendered as 12288 triangles in POV-Ray.
>
> I'm rewriting my surface subdivision macros to use the Catmull-Clark
> scheme because I am updating my modeler to use faces with more than four
> vertices.  Because the number of faces in the original mesh can vary
> quite a bit, the macros have to be completely rewritten from the ground
> up, and as you can see from this pic, I don't have normal interpolation
> implemented yet.  I also don't have texture mapping turned on, either.
>
> When these are working and I've written the .INC file export in my
> modeler to match it, the new version (v1.7, which also supports .OBJ
> file import) will be released, and then I'll start work on a posing and
> key-framing and all that.
>
> Regards,
> John

Thanks for all the work, John!  I'm wondering if you've played around any with
TopMod and looked at the myriad subdivision schemes they implement?

http://www.topmod3d.org/

Dave Matthews

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