Thomas de Groot wrote:
> "Jim Charter" <jrc### [at] msncom> schreef in bericht 
> news:457883e0@news.povray.org...
> 
>>Here is some quick results I got using the mesh displacement capability
>>of Poseray

> 
> 
> Yes this works fairly well in Poseray, although with some limitations 
> indeed. Displacement mapping is probably the best option.
> 
> A very exciting tool at this moment is Silo 2.0, currently in beta version, 
> which has a powerful displacement painting tool. Drawback is that it is 
> currently only available to Silo 1.x owners. However, the price is 
> acceptable for what is offered and the learning curve is smooth. See 
> http://nevercenter.com/
> 
> Otherwise, as said already above, isosurfaces would do the job, but here the 
> object is a mesh so, I don't know how to go from there.
> 
> Thomas 
> 
> 
There is no universal solution imho.  As you say for certain effects 
this will work and features the flexibility of mesh.  Obviously, 
resolution is the huge issue.  The resolution needed to get pockmarks, 
for instance, isn't necessary over the whole model but currently there 
is no other way  and if you did apply that degree of resolution to the 
whole model the data files would be prohibitively large.

Subdivision modelling such as supported in Blender and Silo might be 
used to leverage such a situation if used craftily but again it would be 
specific to the effect, not a universal solution.

btw, would the Silo displacement painting tool accept a texture, perhaps 
like using a custom brush in photoshop?

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"Jim Charter" <jrc### [at] msncom> schreef in bericht 
news:4579315e$1@news.povray.org...
>
> btw, would the Silo displacement painting tool accept a texture, perhaps 
> like using a custom brush in photoshop?

Yes, it does. You can define your own custom brushes. Amongst other things, 
an image_map, or pinch, smooth, push, smudge. As you can subdivide only 
parts of the mesh, you have full control over over what parts need 
displacement (after subdivision) and what others don't.
Silo 2 is also proposing better uv-mapping control with texture unwrapping 
possibilities. I have not yet explored those areas, but it looks promising.

Thomas

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Florian Brucker wrote:
> Jim Charter wrote:
> 
>>Here is some quick results I got using the mesh displacement capability 
>>of Poseray
> 
> 
> Eew, the transformed one looks *really* gross :)
> 
> 
> Florian
Thanks, sort of a mix of skullbone and brain tissue.

Both models are transformed btw, the second picture with the larger 
scale texture carries some effects from the previously applied small 
scall map.  Interesting potential, no?

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