[Sidefx-houdini-list] renderman raytrace shadows

Louis Dunlevy ld at dneg.com
Tue Jan 22 11:49:52 EST 2008


ahh.. sorry!

I'm rather pathetic with H9 I'm afraid... :-[

Phil Spicer wrote:
> Hi Louis,
>
> We got 8.2 working fine, every time. It was always very stable. It is
> version 9 which seems a bit more problematic.
>
> Kind regards,
>
> Phil.
>
>
> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com
> [mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Louis
> Dunlevy
> Sent: 22 January 2008 16:14
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] renderman raytrace shadows
>
> in H8.2
>
> Shading Tab -> RIB -> Diffuse Ray Visibility -> Visible - Use Cs/Os (or 
> shader if you like )
>
> haven't tried H9..
>
> Phil Spicer wrote:
>   
>> Hi there,
>>
>>
>> No this does not work either... I checked every combination I can
>>     
> think
>   
>> of. The error returned in the shell is:
>>
>> P80005 {ERROR}   Parameterlist type mismatch in RIB stream. (at line
>>     
> 233
>   
>> in stdin)
>> Z10003 {WARNING} Shaders invoke raytracing, but no traceable objects
>> exist. [<Shading>  Object:'/shop/rman_base'  Shader:'asad_light']
>>
>> This is a simple scene with a VOP RSI shader (lighting model >
>>     
> output).
>   
>> The shader is converted to a material called rman_base and assigned to
>> all objects.
>>
>> The rib1 output driver has it transmission visibility set to visible
>> with no effect. I then tried assigning transmission visibility to each
>> object with no effect. I also tried switching between Ray-Traced
>>     
> Shadows
>   
>> and the raytrace depthmap command with no effect.
>>
>> Has anyone else encountered this? Is the Light Template the only way
>> forward?
>>
>> 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: 21 January 2008 15:46
>> To: sidefx-houdini-list at sidefx.com
>> Subject: Re: [Sidefx-houdini-list] renderman raytrace shadows
>>
>> On Monday Jan 21 at 15:28, Phil Spicer wrote:
>>   
>>     
>>> This does not work (at least in my case). I am using H9.0.782, and
>>> receive the following shell errors when I try to implement renderman
>>> raytrace shadows:
>>>
>>> Z10003 {WARNING} Shaders invoke raytracing, but no traceabl
>>> e objects exist. [<Shading>  Object:'/obj/platonic_object1/
>>> shopnet1/material1'  Shader:'asad_light']
>>>
>>> P80005 {ERROR}   Parameterlist type mismatch in RIB stream.
>>>  (at line 218 in stdin)
>>>
>>> Any thoughts?
>>>     
>>>       
>> The "default" value for the transmission visibility attribute is false
>> (meaning that by default objects aren't visible to shadow rays).
>>
>> When rendering from the "View: RenderMan", you're getting the default
>> values.
>>
>> If you put down an output driver, the creation script *should* set the
>> transmission visibility to on by default.  This is inherited by all
>> object.
>>
>> So, if this still isn't working, check the value of the
>> ri_visibletransmission parameter on the output driver (or add it to
>> objects).
>>
>> Ditto for ri_visiblespecular.
>>
>> There was a bug fixed very recently with ri_visiblediffuse, when used
>> in conjunction with the indirectdiffuse() shade-op.  It's just a minor
>> bug though, and would affect performance rather than behaviour.
>>
>> Cheers,
>>
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>>
>>
>>
>>
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>>     
>
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