[Radiance-general] Ambient exclude transfomed material in instances

[iebele]

Hi,

I have a complex scene in which I use instances which I want to exclude 
from ambient calculation.

The problem is that I use !xform  ..... with file A that include 
materials to create another file B  that is later used as an instance.
I need the materials in file A excluded from ambient calculation.
The exclusion does not seem to work in my case, which makes the 
rendering times enormous ( lightyear - 0.01 % progress per hour in the 
picturel, very very much rays )

Any help is most  welcome.

-Iebele




This is how I build up the scene:


*File 
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/blad.rad 
contains:*


## A single leaf
#
# images must be included in this file, needs transform too (in xform)
#

# IMAGE
void  colorpict AL05lef_color.pic.0.map
19 red green blue
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05lef_color.pic
/disk12/materials/picture.cal
tile_u tile_v
-s 1.0 -rx  0 -ry  0 -rz 0 -t  -0.5 0 0
0 1 1.13149171

# MATERIAL
AL05lef_color.pic.0.map plastic  AL05lef_color.pic.0.col
0 0 5
2 2 2
0.0 0

# Mixture
void mixpict AL05lef_color.pic.0.trans
19 AL05lef_color.pic.0.col  void green
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05lef_alpha.pic
/disk12/materials/picture.cal
pic_u pic_v
-s 1 -rx  0 -ry  0 -rz 0 -t -0.5 0 0
0 1 1.13149171

# The leaf
AL05lef_color.pic.0.trans polygon AL05lef_color.pic.0.polygon
0 0 12
-0.5  0 0
0.5 0 0
0.5 0 1.13149171
-0.5  0 1.13149171


*file AL05m.raw (leaves of a tree) contains many  lines like:*

!xform -rx 60.095138 -ry 47.844579 -rz 7.070462 -s 0.200000 -t -0.322761 
0.124242 14.044600 
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/blad.rad




*The octree of the tree (AL05m.raw) and the leaves **is build like:*

oconv -w- -f  
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/blad.rad     
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05m.mat 
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05m.raw 
 > AL05m.oct

*
File bomen.rad contains lines like:

*# boom plein_gevel
void instance boom_plein_gevel
9
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05m.oct
-s .9
-rz 56.018930
-t -6.509 93.251  -2.6
0
0
*
The scene is compiled like:*

oconv -w-  sky.rad   otherstuff.raw bomen.raw   > model.oct


*File 
/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05m.ae 
contains the line:*

 -ae AL05m.dxf_Default -ae  AL05m.dxf_bark_col -ae  
AL05m.dxf_bark_col_leaf_a -ae AL05m.dxf_bark_col_roots1 -ae 
AL05m.dxf_leaf_col_leaf2 -ae AL05m.dxf_leaf_col -ae  
AL05lef_color.pic.0.col -ae AL05lef_color.pic.0.trans

*The scene is rendered like:

*rpict -x 16000 -y 16000  -lr 4  -t 300 -ab 4 -st 0.01 -ar 128  -dp 512 
-dr 3 -dc .5 -dt .05 -ds .15 -aa .15 -ar 128 -ad 512 -as 256 -av 3 3 3  
-vf hermitage17.vp  
@/disk12/Bilbliotheek/Xfrog/AL05_Aesculus_hippocastanum_Horse_Chestnut/AL05m.ae 
model.oct   | pfilt -1 -x 4000 -y 4000  > hermitage17.pic*
*