| 118 |
|
options, and should obey both Helmholtz reciprocity and |
| 119 |
|
integrate to less than 1 over each projected incident hemisphere |
| 120 |
|
for energy conservation. |
| 121 |
+ |
The variable and function definitions in each |
| 122 |
+ |
.I \-f source |
| 123 |
+ |
file are read and compiled from the RADIANCE library where it is found. |
| 124 |
|
If the |
| 125 |
|
.I \-t3 |
| 126 |
|
option is specified, the defined function is assumed to be isotropic. |
| 153 |
|
isotropic Phong distribution: |
| 154 |
|
.IP "" .2i |
| 155 |
|
bsdf2ttree -g 5 -t3 -e 'phong(ix,iy,iz,ox,oy,oz) = if(iz, .1+((iz+oz)/sqrt((ix+ox)^2+(iy+oy)^2+(iz+oz)^2))^50, 0)' phong > phong.xml |
| 156 |
+ |
.SH ENVIRONMENT |
| 157 |
+ |
RAYPATH the directories to check for auxiliary files. |
| 158 |
|
.SH AUTHOR |
| 159 |
|
Greg Ward |
| 160 |
|
.SH "SEE ALSO" |
