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Want to create a sphere with wrinkled edges...
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Want to create a sphere with wrinkled edges... // Roundtable
Post by davidjohnson // Oct 2, 2007, 4:07pm
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davidjohnson
Total Posts: 169
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I want to add a texture to a sphere, simple enough, but I want the texture to actually transform/mold the object so that edges are not smooth and take on the texture characteristics. I only have TS 6.6, so I don't know if this is possible...any suggestions? |
Post by jamesmc // Oct 2, 2007, 5:03pm
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jamesmc
Total Posts: 2566
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I think what you want to do is what is called displacement mapping. Where the displacement map actually "displaces" the geometry when it is rendered.
This is done with a texture map that is white with shades of gray defining where you want displacement.
You can get this right away from the built in displacement shaders inside trueSpace or you can make your own with texture maps in a paint program.
Since you just want them on edges, you would need to UV Map the object and save that UV map, so you can paint on it.
The first image is what I used from the UV texture map from trueSpace and put some white bars evenly spaced.
The second image is what a normal default sphere looks like with the map applied after rending. |
Post by splinters // Oct 2, 2007, 9:11pm
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splinters
Total Posts: 4148
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Isn't that bump mapping James?
Vray (or LW) does not support true displacement mapping (yet) and we only have dribble to use for that feature. That actually changes the geometry of the mesh rather than the illusion that a bump map gives.
Either way though, the effect is there if that does the trick but shadows are not 'displaced' using the bump method... |
Post by SiW // Oct 2, 2007, 10:19pm
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SiW
Total Posts: 298
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Unless you buy the FANTASTIC AND AMAZING dribble ;) then you're limited to trying to find a copy of trueDisplacement (can you even still register it anymore? does it work in tS6?) and using that on a really dense sphere. |
Post by Vizu // Oct 3, 2007, 12:25am
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Vizu
Total Posts: 628
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http://www.digivision.com.tw/truespace/tsplugin/ck_truedisp.zip
try this
or just go to http://www.digivision.com.tw/truespace/tsplugin/index.htm to see many more PlInns |
Post by 3dpdk // Oct 3, 2007, 12:38am
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3dpdk
Total Posts: 212
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What everyone is saying here, davidjohnson, is that there is nothing resident in tS6.6 that will do what you want The bump map jamesmc has shown you is as close as you'll get in 6.6 but if you examine the sphere closely from a top-down view you would see the geometry of the sphere has not changed at all. The bump map only creates the illusion of texture. As splinters points out shadows and silhouettes of the object will reveal a smooth geometry.
For tS6.6 you will have to call on an external program or plug-in for true displacement.
Links apparently already supplied before I could post this. |
Post by Vizu // Oct 3, 2007, 2:24am
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Vizu
Total Posts: 628
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3dpdk ! this is why i post the Link to the Truespace truedisplacement Link.
I have work with it and it works well.
all he have to do is using a good texture for it and a high poly sphere. |
Post by TomG // Oct 3, 2007, 2:47am
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TomG
Total Posts: 3397
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Hi all,
Just to summarize and confirm. What James describes is bump mapping, not displacement mapping - at render time it gives the illusion that the geometry of the surface has changed, but the edges of the object (and its shadows etc) will reveal that the geometry has not changed at all (it works by altering the normals at points on the surface, without actually altering the surface).
Displacement mapping does what you mention and is not included natively in tS6.6.
You can add displacement mapping (of a sort) using the plugin link posted. The plugin is free, so it adds that functionality at no charge.
Other purchased plugins such as the newly released Dribble can also do displacement mapping (without the need to go for a very poly dense object, so there is an advantage to that approach) but in the case of Dribble will mean using a different render engine (I think - Simon will correct me if I am wrong there! But I believe using Dribble to get displacement will mean rendering with 3Delight rather than tS6.6's native Lightworks).
HTH!
Tom |
Post by SiW // Oct 3, 2007, 6:33am
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SiW
Total Posts: 298
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You can add displacement mapping (of a sort) using the plugin link posted. The plugin is free, so it adds that functionality at no charge.
Is trueDisplacement free? The download talks about registering it. Aside from that it should do the job well as long as you can live with a very high-poly mesh and having to recreate it whenever you want to change the displacement texture.
Trivia: A long time ago I was going to do a special release of coolpowers2 (cp2: integral), with all the plugins recreated with more features. The revamped displacedatplace worked with arbritrary meshes, just like trueDisplace.
But I believe using Dribble to get displacement will mean rendering with 3Delight rather than tS6.6's native Lightworks
Correct. |
Post by TomG // Oct 3, 2007, 9:49am
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TomG
Total Posts: 3397
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Hmm I thought it was free but not 100% sure - I think all PI items became free when PI closed down, but could be wrong. Someone will need to fill us in on the details (I will try if I get time to download and install but that may be a while!).
Thanks!
Tom |
Post by rjeff // Oct 3, 2007, 10:28am
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rjeff
Total Posts: 1260
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Totall of subject here..do not mean to Hijack the link, but we are on subject. SIW why did you not make Dribble work with the TS renderer? What if you don't have the cash to buy all the differnent things you would need to make it work? |
Post by jamesmc // Oct 3, 2007, 10:51am
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jamesmc
Total Posts: 2566
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Ya, it's bump mapping, but as you said I can't demonstrate displacement texture with tS.
I was going to use another program to show it, but Norm would spank me and send me on my way. :)
I'll just show a sphere with the same displacement map I used above. Hopefully, that is within bounds. Just for educational purposes.:) |
Post by Chester Desmond // Oct 3, 2007, 11:00am
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Chester Desmond
Total Posts: 323
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trueDisplacement is(was) from CK Game Factory which, sadly, appears to have vanished. It was a shareware plugin which I believe had a limit on the resolution of the mesh you could use until registered. It worked great although the high polycounts required were a bit of a pain. |
Post by splinters // Oct 3, 2007, 11:27am
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splinters
Total Posts: 4148
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Totall of subject here..do not mean to Hijack the link, but we are on subject. SIW why did you not make Dribble work with the TS renderer? What if you don't have the cash to buy all the differnent things you would need to make it work?
tS renderer does not support the features dribble does; GI, displacement mapping , SSS etc. if dribble suported lightworks, it would be exactly as it is now...:confused:
As for running it, Dribble is a paltry £15 for one mans hard work over 10 years, 3delight is free. C'mon that is not expensive at all.
Neither is Vray when you consider how good it is but that is 300 dollars?? |
Post by SiW // Oct 3, 2007, 11:35am
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SiW
Total Posts: 298
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Not going to comment on the price as that'd be tacky *grin* but what splinters says is correct; the point is to replace Lightworks, not add to it. There are simply things that you can't do efficiently with addons if a renderer doesn't support the functionality. That's why the majority of complete 3D packages today offer a choice in renderer, I'm just expanding those choices for tS users. |
Post by rjeff // Oct 3, 2007, 1:52pm
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rjeff
Total Posts: 1260
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free? the site said it was 1000..I agree SIW price is cool. I though very reasonable. |
Post by Burnart // Oct 3, 2007, 3:19pm
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Burnart
Total Posts: 839
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The way they describe it on the site is a bit confusing - but a single license for 3Delight on a machine is free. However, to setup multiples will cost a $1000 for the next additional license presumable because you must be a high powered professional who can afford it! (I think dribble is absolutely marvellous for the price and I look forward to the coming updates and future development of it. If he isn't already, SiW should be installed in the pantheon of tS gods! Sorry for continuing off topic.)
Whats the feeling about posting old shareware/freeware plugins if the original links are broken? I'm sure someone must have a copy of CK's displacement mapper. |
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