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root/radiance/ray/src/rt/rayinit.cal
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Comparing ray/src/rt/rayinit.cal (file contents):
Revision 2.13 by greg, Sat Feb 22 02:07:29 2003 UTC vs.
Revision 2.15 by greg, Mon Mar 25 16:10:00 2013 UTC

# Line 1 | Line 1
1 < { RCSid: $Id$ }
1 > { RCSid $Id$ }
2   {
3          Initialization file for Radiance.
4  
# Line 17 | Line 17
17          Kx, Ky, Kz                      - world k unit vector
18          arg(n)                          - real arguments, arg(0) is count
19  
20 <        For brdf functions, the following are also available:
20 >        For mesh objects, the following are available:
21  
22 +        Lu, Lv                          - local (u,v) coordinates
23 +
24 +        For *func & *data materials, the following are also available:
25 +
26          NxP, NyP, NzP                   - perturbed surface normal
27          RdotP                           - perturbed ray dot product
28          CrP, CgP, CbP                   - perturbed material color
# Line 37 | Line 41
41  
42          sin(x), cos(x), tan(x),
43          asin(x), acos(x),
44 <        atan(x), atan2(y,x)             - standard trig functions
44 >        atan(x), atan2(y,x)             - standard trig functions (radians)
45  
46          floor(x), ceil(x)               - g.l.b. & l.u.b.
47  

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