[Sidefx-houdini-list] Curves normals

Pablo Giménez pablogipi at gmail.com
Thu Aug 26 13:21:17 EDT 2010


2010/8/26 Andrew D Lyons <tstexture at gmail.com>:
> have you looked at the hair shader? From memory there is some kind of
> oscillation along v that creates a more tubular look.
I made a quick look at it, and I think is using the s texture
coordinate to get the rounding effect.
>
> 2010/8/26 Pablo Giménez <pablogipi at gmail.com>:
>> 2010/8/26 Szymon Kapeniak <szymon.kapeniak at gmail.com>:
>>>> The t is fine, going from 0 to 1 along the curve lenght, but s is
>>>> supposed to be along the curve "cross sections" width, and this is not
>>>> happening.
>>>
>>> Isn't it related to recent optimization in Mantra (ver11)?:
>>> """
>>> Tuesday, July 6, 2010
>>> Houdini 11.0.434: Optimize micropolygon rendering of curves by shading
>>> only a single edge of points on the curve rather than both edges. Add
>>> an option, vm_curvesurface, to enable the old behavior that shades
>>> curves as surfaces.
>>> """
>> Thanks Simon, this seems to be the solution, but unfortunately is not
>> doing nothing.
>> I have tried to add to the object, material and even the mantra node
>> but I got the same render as without it.
>> I am using H11.0.446.9
>> Looking at the explanation this render property is what I ahve been
>> looking for, but or is not implementes, or has a bug because the s
>> texture coordinate is still not created.
>>>
>>> hth,
>>> skk.
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>>
>>
>>
>> --
>> Un saludo
>> Best Regards
>> Pablo Giménez
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>
>
>
> --
> =======================================
> Andrew D Lyons | Digital Artist | http://www.tstex.com
> =======================================
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-- 
Un saludo
Best Regards
Pablo Giménez



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