[Radiance-general] Ambient exclude transfomed material in instances

[Gregory J. Ward]

Hi Jack,

Thanks for the idea of using obj2mesh.

As to your question, the final modifier is the one that must be  
excluded (or included) using the -a[eEiI] option.  I Iebele's file,  
this means the mixpict modifier.

Do you know what error comes out of obj2mesh using the xfrog .OBJ file?

-Greg

> From: Jack de Valpine <jedev at visarc.com>
> Date: April 2, 2007 2:00:36 PM PDT
>
> Hi Greg and Iebele,
>
> I have a comment and a question on this.
>
> First, Iebele, I have also just gotten a 3D xfrog tree. FYI, it is  
> possible to generate an obj, convert to a radiance mesh and use  
> Local u,v coordinate mapping to get the leaf and bark materials to  
> apply. I have a tree right now that basically has a few materials  
> defined for it:
> bark with colorpict modifier
> leaf with colorpict modifier
> leaf-mix mixpict - this uses an alpha version of the leaf to mix  
> between void (ie where the alpha is black) and the leaf material (2)
> The question for Greg is this, to exclude the leaves from the  
> ambient calculation what needs to be listed in the exclude file the  
> "leaf" material and/or the "leaf-mix" material?
>
> Iebele, the one thing to note is that the obj file that comes out  
> of xfrog does not play well with obj2mesh or obj2rad. Thus I have  
> to bring it into PolyTrans and re-export as an obj to get a file  
> that radiance is happy with.
>
> Best,
>
> -Jack