Re: Glossy Reflection Bug?

[Arvid Björn <arvid.bjorn(at)palladiumfilm.com>]

Any known reason for leaving that out of the regular phong, by the way?


Reinhard Claus wrote:

> Hi there,
>
> It makes sense not to calculate glossy reflections of glossy 
> reflections but hard reflections of glossies like in your case should 
> be ok. It seems xsi has a common raydepth counter for both glossy and 
> hard reflections and optimizes by only calulating glossies at raydepth #1.
> Ideally the two reflection types should be counted separately.
>
> For working around this you could dump phong refl and build your own 
> using the reflection_diffuse shader. This has a setting for glossy depth
>
> Reinhard
>
> 2005/10/26, Michael Klein <forum(at)virtualrepublic.org 
> <mailto:forum(at)virtualrepublic.org>>:
>
>     Hi,
>
>     I have an interesting problem.
>
>     Watch my picture at:
>     http://www.virtualrepublic.org/xsi/glossy_bug.jpg
>
>     You will recognize that the glossy reflection in the floor plane will
>     reflected normal in the sphere.
>     This seems wrong to me. I expect a reflected floor with a blurred
>     environment in the sphere.
>     Actually I use HDRi Environment but this occurs also with a normal
>     textured
>     environment sphere.
>
>     Any ideas if this is a missing feature in the raytracing code?
>     How is glossy computed? By a shader alghorythm at the end?
>
>     Regards,
>     President Michael Klein
>     virtual republic
>
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>
>
> 2005/10/26, Michael Klein <forum(at)virtualrepublic.org 
> <mailto:forum(at)virtualrepublic.org>>:
>
>     Hi,
>
>     I have an interesting problem.
>
>     Watch my picture at:
>     http://www.virtualrepublic.org/xsi/glossy_bug.jpg
>
>     You will recognize that the glossy reflection in the floor plane will
>     reflected normal in the sphere.
>     This seems wrong to me. I expect a reflected floor with a blurred
>     environment in the sphere.
>     Actually I use HDRi Environment but this occurs also with a normal
>     textured
>     environment sphere.
>
>     Any ideas if this is a missing feature in the raytracing code?
>     How is glossy computed? By a shader alghorythm at the end?
>
>     Regards,
>     President Michael Klein
>     virtual republic
>
>     ---
>     Unsubscribe? Mail Majordomo(at)Softimage.COM
>     <mailto:Majordomo(at)Softimage.COM> with the following text in body:
>     unsubscribe xsi
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