[Radiance-general] Problem with mesh texture coordinates

[Jack de Valpine]

Hey Mark,

Do you mean to use Lu instead of Lv? The texture coordinates for a mesh 
object are Lu,Lv.

-Jack

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Mark Stock wrote:
> I am using a Radiance mesh primitive, converted using obj2mesh, which 
> contains texture coordinates. I want to use those texture coordinates 
> to set the grey reflectance of the mesh. But when I rvu the model, I get:
>
> rvu: Ly`grey: undefined variable
>
> My .obj file looks like:
>
> vt 0 0.136413
> v -1.86092 -2.25017 -0.364442
> v -1.8692 -2.23265 -0.387964
> v -1.8692 -2.22994 -0.385942
> v -1.86092 -2.24745 -0.36242
> v -1.87395 -2.25237 -0.361491
> v -1.88223 -2.23485 -0.385014
> v -1.88223 -2.23214 -0.382992
> v -1.87395 -2.24965 -0.359469
> f 1/1 2/1 3/1
> f 1/1 3/1 4/1
> f 4/1 3/1 7/1
> ...
>
> My scene.rad file is:
>
> void brightfunc basecolor 2 refl grey.cal 0 0
> basecolor plastic def 0 0 5 1.0 1.0 1.0 0.0 0.0
> def mesh amesh 1 scene.msh 0 0
>
> And grey.cal is simply:
>
> refl = Ly;
>
> What am I doing wrong?
>
> Mark
>
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