[Sidefx-houdini-list] instance vopsop trouble

zoran arizanovic zoran.arizanovic at gmail.com
Tue Apr 30 05:06:25 EDT 2013


thanks nikita
tried both not helping much :(


On Tue, Apr 30, 2013 at 10:59 AM, Nikita Musatov <not.a.whale at gmail.com>wrote:

> Point Instancing
> Off
>
> No point instancing. Instead, the instanced object simply replaces the
> instancing object.
>
> Full point instancing
>
> Lets you modify any object-level rendering property (material
> assignment, shading, sampling, dicing, etc.) across point instances
> via an expression, using theinstancepoint() function to get the
> current point index. It also supports the same point attributes as
> fast point instancing. The variation is done at export time, and
> usually leads to much larger IFDs/RIBs and slower export.
>
> Fast point instancing
>
> Renderable properties can only be varied across different point
> instances through a limited set of point attributes:instance,
> material_override, andshop_materialpath. The last two can be easily
> set by using the Material SOP. Additionally, the object-level
> variations are ignored. For example, the instancepoint()function will
> return zero. The variation is done at render time and has very little
> impact on the IFD size or export time.
>
> 2013/4/30 Nikita Musatov <not.a.whale at gmail.com>:
> > If no attribute dependence then fast, else full.
> > http://www.sidefx.com/docs/houdini12.5/nodes/obj/instance#id538568
> >
> > 2013/4/30 zoran arizanovic <zoran.arizanovic at gmail.com>:
> >> no fast is this a problem
> >> which one should be for general cases?
> >>
> >>
> >> On Tue, Apr 30, 2013 at 10:13 AM, Nikita Musatov <not.a.whale at gmail.com
> >wrote:
> >>
> >>> Do you choose Full Point Instancing in Instance node?
> >>>
> >>> 2013/4/30 zoran arizanovic <zoran.arizanovic at gmail.com>:
> >>> > hi
> >>> > i did same setup as in sidefx Halloween tutorial for instancing
> >>> > except i have buildings in for city
> >>> > when i reopen file or try to re render it doesn't respect random
> values
> >>> and
> >>> > random seed values from vopsop attributes but gives me same house all
> >>> over
> >>> > it is hard to awaken it from this unless i try different seed random
> >>> > numbers after a while it starts to take them in
> >>> >
> >>> > force compile or similar doesn't work either
> >>> > it is very anoying as you are never sure if render will have proper
> >>> > instancing or not :(
> >>> >
> >>> > any clues , i am using 376 build
> >>> >
> >>> >
> >>> > --
> >>> > Zoran Arizanovic
> >>> > vfx reel : http://vimeo.com/28605448
> >>> > http://www.imdb.com/name/nm2902303/
> >>> > _______________________________________________
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> >>> > Sidefx-houdini-list at sidefx.com
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> >>>
> >>
> >>
> >>
> >> --
> >> Zoran Arizanovic
> >> vfx reel : http://vimeo.com/28605448
> >> http://www.imdb.com/name/nm2902303/
> >> _______________________________________________
> >> Sidefx-houdini-list mailing list
> >> Sidefx-houdini-list at sidefx.com
> >> https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list
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-- 
Zoran Arizanovic
vfx reel : http://vimeo.com/28605448
http://www.imdb.com/name/nm2902303/



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