Wrapping a sphere - possible?

[ajreed]

I've not seen it done using Xara - maybe because its not possible. Maybe this is a challenge.

Is it possible to wrap a bitmap fill round a sphere? And by that I mean so you get the correct visual edge distortion as the fill pattern reaches the visual horizon.

Can achieve the desired result using a ray tracer, but hell - I just bought Xara! [img]/infopop/emoticons/icon_biggrin.gif[/img]

[ajreed]

I've not seen it done using Xara - maybe because its not possible. Maybe this is a challenge.

Is it possible to wrap a bitmap fill round a sphere? And by that I mean so you get the correct visual edge distortion as the fill pattern reaches the visual horizon.

Can achieve the desired result using a ray tracer, but hell - I just bought Xara! [img]/infopop/emoticons/icon_biggrin.gif[/img]

[Sean Sedwards]

You could try my Spherical Mould filter in the Shareware Xone. I think Gary's created an example of what you're talking about.

If you also use the Emboss plug-in to create a 'bump map', you can apply it to the fill as a transparency to add texture.

Regards - Sean

[Erik Heyninck]

I wanted to divorce, and go back to CorelDraw, but couldn't... [img]/infopop/emoticons/icon_rolleyes.gif[/img]

So here I am back.

Yes, it can.
1/import bitmap
2/trace bitmap
3/mould to circle
4/draw another circle with the same dimensions.
5/make this second one a sphere in shadowy (blueblack) hues to pure white.
6/put it on top of the bitmap (be patient as Xara needs to calculate)
7/ make a little sphere with transparent edges in, in this case yellowy green and put this on the highlight.
8/ create the reflection by combining two spheres to get a moon of greenish yellowblue
9/ play with transparancies, feathering etc
10/ group and export as Jpeg or Tiff

(wanting to play further, I pushed Xara over the limit and had a crash. so no xar to be posted. unluckily)

but I saved the bitmap. The jpeg loses some quality, but still gives an idea. the xar would have been better as i would have been able to change the dimensions etc

enjoy

[Erik Heyninck]

is the bitmap

[ivan louette]

For small images you could use the technique described

here

And with more details in the original thread.

Regards,

ivan

[gwpriester]

Eric

I'm glad you did not defect to CorelDRAW :-)

But, tracing images is a pain in the butt.

Sean's SS-Mould tool is quick and it is easy. If you don't like the results, hit Undo and try another setting.

Gary

Gary Priester

Moderator Person

Be It Rarely So Humble...

[Erik Heyninck]

Thanks, Gary.

But correct me if I am wrong: I wouldn't use a bitmap filter because it has to adapt the bitmap mosaic and eliminate a lot of pixels, resulting in unsharp borders. When tracing the bitmap, you work with vectors, and these can be reduced in size without loss.

But I will install the plugin anyway... I thought these plugins were for CXara, not X [img]/infopop/emoticons/icon_rolleyes.gif[/img]