On 14-11-2011 8:53, Thomas de Groot wrote:
> [...] Another track to investigate is the use of transparency, i.e.
> a transparency map. I am not sure, it depends on how the uv-mapping of
> the tubes is done.

OK. I investigated the uv_mapping and that appears to be nicely done, 
with the seam along the length axis of each individual hair/tube.

Use of transparency maps is not necessary/recommended as the hairs are 
too thin.

However, if needed/wanted, one can of course use transmit or better 
filter, within the texture to play with the transparency of the hair.

The following material has been used for the attached image. Note the 
gradient x for colour change from root to tip. No filter applied here 
but it subtly alters the overall aspect when used. Advice: filter 0 at 
the root; filter <1.0 at the tip. Be careful with the use of any warp as 
this can upset your scheme.

The material used:

material {
   texture {
     uv_mapping
     pigment {
       gradient x
       pigment_map {
         [0.20 srgb <  0,   0,   0>/255 filter 0.0]
         [1.00 srgb <255, 255, 255>/255 filter 0.0]
       }
       scale <1, 1, 1>
       warp {turbulence <0.0, 0.01, 0.01>}
     }
     finish {
       specular 0.2
       roughness 0.005
       diffuse 0.8
     }
   }
}


All comments welcome of course!

Thomas

Post a reply to this message

Attachments:
Download 'poserfiguretest.png' (204 KB)

Preview of image 'poserfiguretest.png'