[Bf-committers] New procedural texture: Planet

Daniel Salazar - 3Developer.com zanqdo at gmail.com
Mon Nov 22 16:37:33 CET 2010

and no picture is worth exactly how many words? :)

Daniel Salazar

On Mon, Nov 22, 2010 at 9:33 AM, <raulf at info.upr.edu.cu> wrote:

> Hi all :)
>  This weekend I need to create a procedural planet for a local work, so I
> went straigth to tinkering with built in procedural textures, sadly there
> where no simple combination of procedurals that provide me satellite like
> view of planet surfaces, in order to achieve that a procedural should
> have some desired properties:
>  It should have iso - lines that remind same high levels, like coastal
> lines or lines like rivers, erosion and features like that. (the closer
> built in procedural that currently have similar features in Blender is
> stucci at high octaves and turbulence and the magic one, but is not enough
> and are quite self similar at every scale)
>  It should be fractal like but should not be very similar among scales
> because otherwise you get very similar and smooth detail at every scale
> (like currently happen with Cloud porcedural)
>  It should provide detail enough at all scales in order to avoid
> increasing the number of noise octaves beyond wthat's currently blender
> have built in, for planet surfaces extremely close shorts should be made
> to the surface or build very big spheres, and from far away any
> smoothness
> will be inmediately spotted.
>  The usual approach is to use lots of layers and composited procedurals
> in order to achive that, with the corresponding slow down, and trial and
> error approach or use some of the excelent directly aviable satellite
> pictures of planets (not an option for people offline like me).
>  So I end up creating a new procedural: "Planet" texture, that has all the
> needed features and more, it provides enough detail at every scale and
> more important, is not very similar at different scales so zooming in
> will give you an entirely different view with new details and features in
> the terrain, it also have iso-lines and features that simulate erosion,
> rivers, platforms, and more , all using a single procedural!!!
>  It also have a very interesting feature: at small scales it have a curl
> like behaviour, and adding more octaves, will add more small curls,
> unlike the current Magic texture that only add detail to the existent
> loops, this will prove usefull for rocks, and texture driven flow for
> particles.
>  As always a picture worth a thousand word, judge yourself, I think this
> texture is worth integration ;) Hope you like it.
>  I have send my post to Lapinou to be uploaded in my site soon.
>                                                       Cheers  Farsthary
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