[Radiance-general] Using picture maps on defined materials? (colorpict or brightdata...)

[Lars O. Grobe]

Hi!

I am back working on my image maps.. and still in trouble. While I finally 
know how to do the transformations of my image maps, I have some problems 
with the different types of modifiers radiance offers.

First, I have a limited set of photographs that are to become imagemaps. I 
have some of rather good quality in black/whithe, showing the complete 
objetcs' surfaces. I would like to map these onto the objects in my scene.

Than, I have some pictures which give me color values (they are 
color-corrected), but which don't show the complete surfaces. So I cannot use 
them as patterns.

So which modifier should I use? If I use colorpict, I get grey surfaces (as 
the gray colorpict is mapped ON the material?). I would like to use 
brightdata, but how do I convert my grayscale image into the data-format I 
would need? Is this possibile at least?

One last possibility might be to use the color information from the color 
corrected pictures and apply this color to the greyscale-images. Is this 
possible with the radiance tools (e.g. pcomb)?

Thank you, have a nice weekend, CU,

Lars.