sme### [at] skynetbe (Smellenbergh) wrote:
> The original tutorial of Christophe Bouffartige's clothray can be found
> at: http://tofbouf.free.fr/clothray/index_en.html
> It doesn't contain more info on the constraints, but there is a page
> with some example scenes at:
> http://tofbouf.free.fr/clothray/mpg/mpg.html
> You could check these to figure out how those extra's work.
>
> Keep in mind that the .cth file is a list of grid points written row
> after row. If you need to constraint points, you have to figure out
> their sequence number in that list, and append them at the end.
> In the .cth file add a line with:
>   list_number, constraint.x, constraint.y, constraint.z
> for each point that needs to be constarined.
>
> Example; a 5*5 grid around the center where we want to hold that center
> point at <0,0,0>
> Add
>   #fopen file "filename.cth" append
>     #write(file, 12, ", 0.0, 0.0, 0.0,n")
>   #fclose file
> in the scene file. This will be written as
>   12, 0.0, 0.0, 0.0,
> at the end of the .cth file. The center point is point number thirteen,
> but we start counting from zero!!
> The figures after the point number are restricting coefficients for each
> direction. Zero means no movement. One means no restraint, and values in
> between allow only for a fraction of the step.
>
> I hope this gets you started,

> --
>
> e-mail:sme### [at] skynetbe
>
> http://users.skynet.be/smellenbergh

Thank you very much, this gets me started indeed! I thought constraints were
applied only to sides, now I see the error of my ways.

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