Second Life Forums Archive - 20 Meter Hemisphere?

Silas Sachs

Registered User

Join date: 21 Oct 2005

Posts: 23

11-18-2005 16:20

I know that SL limits prims to 10m x 10 m x 10m max. Is there perhaps a tip or trick to creating a collection of prims that appears to be a 20 Meter diameter Hemisphere without looking like a geodesic dome or involving a huge number of prims? The inside needs to be hollow to boot.

Kenn Nilsson

AeonVox

Join date: 24 May 2005

Posts: 897

11-18-2005 23:18

It's really not possible to my knowledge...I've struggled with large round shapes for some time...you can do a lot of creative "rounded rectangles"...but no true sphere larger than 10 cubic meters...

...and if anyone has...PLEASE share

_____________________

--AeonVox--

Computer games don't affect kids; I mean if Pac-Man affected us as kids, we'd all be running around in darkened rooms chasing ghosts, eating magic pills, and listening to repetitive, addictive, electronic music.

Seifert Surface

Mathematician

Join date: 14 Jun 2005

Posts: 912

11-18-2005 23:44

There are a couple of scripted solutions, using many large (but less than 10m) flat prims to approximate a sphere. Cadroe Murphy's Shapemaker tool makes large spheres and tori. Jeffrey Gomez's 3d Model Importer can also be used to do it. Forum searches for either of these will turn up the relevant threads.

_____________________

-Seifert Surface
2G!tGLf 2nLt9cG

Silas Sachs

Registered User

Join date: 21 Oct 2005

Posts: 23

11-19-2005 12:15

Thanks for the info, I've seen the shapemaker tool, but not real familiar with how it works, I'll look at it a little more once I get back home to an SL capable machine.

Bertha Horton

Fat w/ Ice Cream

Join date: 19 Sep 2005

Posts: 835

11-19-2005 21:22

I've been experimenting with big prims for a 30x30x30 sphere, and will later be doing a hemisphere at 60x60x30.

The bottom part seems to work best as a half-sphere at 10x10x1, and then surrounded by eight rectangular prims with 30% cut off the top and then reversed so the smaller edge is at the bottom.

But for all this, it just can't be made to look smooth enough. I'll check out the tools mentioned above and see if they work.

Part of the trouble is that the whole sphere / hemisphere exteriors need to be textured, so "a bunch of circles/ flattened hemispheres" won't work because then nothing will line up.

Edit: I'm using Cadroe Murphy's Shapemaker, and it's interesting. The big sphere rezzes, but it won't offset with the /12 zoffset command like it should, so I have to move the tool to where I want the sphere. Works great though.

_____________________

Trapped in a world she never made!

Senuka Harbinger

A-Life, one bit at a time

Join date: 24 Oct 2005

Posts: 491

11-23-2005 11:12

someone created an exporter for wavefront that would build any wavefront shape out of a bunch of prims shaped like triangles. I'll try to dig up a link for it, but they were able to make a sphere 100mx100mx100m using it.

[edit] link for the exporter thingy is here

20 Meter Hemisphere?
Silas Sachs Registered User Join date: 21 Oct 2005 Posts: 23	11-18-2005 16:20 I know that SL limits prims to 10m x 10 m x 10m max. Is there perhaps a tip or trick to creating a collection of prims that appears to be a 20 Meter diameter Hemisphere without looking like a geodesic dome or involving a huge number of prims? The inside needs to be hollow to boot.
Kenn Nilsson AeonVox Join date: 24 May 2005 Posts: 897	11-18-2005 23:18 It's really not possible to my knowledge...I've struggled with large round shapes for some time...you can do a lot of creative "rounded rectangles"...but no true sphere larger than 10 cubic meters... ...and if anyone has...PLEASE share _____________________ --AeonVox-- Computer games don't affect kids; I mean if Pac-Man affected us as kids, we'd all be running around in darkened rooms chasing ghosts, eating magic pills, and listening to repetitive, addictive, electronic music.
Seifert Surface Mathematician Join date: 14 Jun 2005 Posts: 912	11-18-2005 23:44 There are a couple of scripted solutions, using many large (but less than 10m) flat prims to approximate a sphere. Cadroe Murphy's Shapemaker tool makes large spheres and tori. Jeffrey Gomez's 3d Model Importer can also be used to do it. Forum searches for either of these will turn up the relevant threads. _____________________ -Seifert Surface 2G!tGLf 2nLt9cG
Silas Sachs Registered User Join date: 21 Oct 2005 Posts: 23	11-19-2005 12:15 Thanks for the info, I've seen the shapemaker tool, but not real familiar with how it works, I'll look at it a little more once I get back home to an SL capable machine.
Bertha Horton Fat w/ Ice Cream Join date: 19 Sep 2005 Posts: 835	11-19-2005 21:22 I've been experimenting with big prims for a 30x30x30 sphere, and will later be doing a hemisphere at 60x60x30. The bottom part seems to work best as a half-sphere at 10x10x1, and then surrounded by eight rectangular prims with 30% cut off the top and then reversed so the smaller edge is at the bottom. But for all this, it just can't be made to look smooth enough. I'll check out the tools mentioned above and see if they work. Part of the trouble is that the whole sphere / hemisphere exteriors need to be textured, so "a bunch of circles/ flattened hemispheres" won't work because then nothing will line up. Edit: I'm using Cadroe Murphy's Shapemaker, and it's interesting. The big sphere rezzes, but it won't offset with the /12 zoffset command like it should, so I have to move the tool to where I want the sphere. Works great though. _____________________ Trapped in a world she never made!
Senuka Harbinger A-Life, one bit at a time Join date: 24 Oct 2005 Posts: 491	11-23-2005 11:12 someone created an exporter for wavefront that would build any wavefront shape out of a bunch of prims shaped like triangles. I'll try to dig up a link for it, but they were able to make a sphere 100mx100mx100m using it. [edit] link for the exporter thingy is here

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20 Meter Hemisphere?