[Radiance-general] How to map a texture?

[Huangwx at Kyoto-Univ.]

Hi, Dear friends:

I am trying to map pictures to simulate the texture of wood, carpet and so on.
I use ra_tiff to convert a .tif picture into a .pic picture, and then use colorpict to map it such as:

void colorpict image01
9 clip_r clip_g clip_b 02.pic picture.cal frac(U) frac(V) -s 500
0
0

image01 plastic wood_mat
0
0
5 .8 .8 .8 .02 0

I found that the properties of plastic material like "5 .8 .8 .8 .02 0" influence the result greatly. how should I set them properly?

Thanks a lot.

Yours,

Huang
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