[Bf-committers] Idea for textureing method.
Kent Mein
mein at cs.umn.edu
Thu Jan 6 18:01:32 CET 2005
In reply to Robert Wenzlaff (rwenzlaff at soylent-green.com):
You could always try something like this playing with the Normal as input:
http://www.cs.umn.edu/~mein/blender/messedtex.blend
Kent
> On Thursday 06 January 2005 07:06, Ton Roosendaal wrote:
>
> > I also don't really understand how procedurals go wrong in a direction,
> > most procudurals work very well in 3D. (Unless with directional
> > procedurals like 'wood' or 'marble', but for good looking wood you can
> > use other textures much better).
>
> Well, I am scaling a texture in the X more than the Y so it makes long,
> bark-like features. The problem is, when a branch leaves the trunk it starts
> off horizontal, then curves back to vertical. The long features of the bark
> now go across the branch instead of along it's length. Local "Up" always
> needs to be parallel to the long axis of each branch.
>
> http://www.soylent-green.com/Tree.png
>
> The texmesh feature might work. But if I have dozens of banches trying to get
> them all pointed "up" would be an editing nightmare. It's the same problem
> as a complex UV map but now in 3D instead of 2D.
>
> That's why I thought having guide empties to define local changes to the
> texture space would be the way to go. Each can be independantly edited. In
> the case of my tree, I would have a few guide empties along the trunk Z up,
> and where a branch left the trunk, an empty with the Z pointing almost
> horizontal (the local axis of the branch). A texture would blend the two's
> texture spaces so there would be a smooth transition from Z being up, to Z
> being left (in the camera view). The texture would curve along the branch
> like you would expect.
>
> You could have weights and max ranges just like bones to control the blending.
> The first empty on the list would be the default space for when you were past
> the influence range of the others. You might want some kind of special mode
> where you "extrude" empties, like extruding a bone, it parents them to the
> selected empty, and adds it to the list of control empties.
> --
> **********************************************************
> People are always amazed by how much "free time" I have.
> They're also amazed that I don't know who Ally McBeal is.
>
> Frankly, I'm amazed that they can't make the connection.
> **********************************************************
> Robert Wenzlaff rwenzlaff at soylent-green.com
>
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