[Sidefx-houdini-list] ifd rendering with procedural delayed load - question

Peter Robbinson probbins at sympatico.ca
Mon Nov 19 13:47:12 EST 2007


Hmmm, I found it Mark.

In the "For Rendering" folder of the Edit Parameter Interface, I used 
"all" as the filter and under
Mantra9.0/Render , "Declare all materials" is the only thing listed.

PeterR

Phil Spicer wrote:
> Hi Mark,
>
> Nope, I cannot find it; even by filtering in the manner you suggest.
>
> Kind regards,
>
> Phil.
>
>
> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com
> [mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Mark Elendt
> Sent: 19 November 2007 15:50
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] ifd rendering with procedural delayed
> load - question
>
> On Monday Nov 19 at 13:38, Phil Spicer wrote:
>   
>> Hi,
>>
>> I have made a teapot which is half orange clay, and half chrome for
>>     
> its
>   
>> materials, and I have saved it out as a .bgeo file.
>>
>> If I load it in using a File SOP and press render, it appears as it
>> should (given that it can still see the materials which are still
>> present in the scene).
>>
>> I then attempt to perform a procedural delayed load on the teapot (by
>> creating a 'Mantra: Delayed Load shader', and pointing it to the .bgeo
>> file), and I call it at Object Level in the Render>Geometry>Procedual
>> Shader section of the teapot object's parameters. When I render
>>     
> however
>   
>> the geometry appears but it is without its material information.
>>
>> Where am I going wrong? 
>>
>> Kind regards,
>>     
>
> There's a rendering property on the output driver to "Declare All
> Materials".
>
> Usually only materials which are used in your scene will be output to
> the IFD.  However, if you have a .bgeo file which you're loading,
> Houdini doesn't know which materials it uses, and they won't be output
> to the IFD (so mantra won't be able to find them).
>
> By turning on "Declare All Materials", all the material definitions in
> the .hip file will be sent to the IFD, regardless of whether Houdini
> thinks they are needed or not.
>
> Open "Edit Rendering Parameters' on the ROP and filter out "material"
> or "declare" and you should find it...
>
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>   

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