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root/radiance/ray/src/gen/rev.cal
Revision: 2.3
Committed: Sat Feb 22 02:07:24 2003 UTC (21 years, 1 month ago) by greg
Branch: MAIN
CVS Tags: rad5R4, rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R5, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3, HEAD
Changes since 2.2: +1 -2 lines
Log Message:
Changes and check-in for 3.5 release
Includes new source files and modifications not recorded for many years
See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release

File Contents

# User Rev Content
1 greg 2.3 { RCSid: $Id$ }
2 greg 1.1 {
3     Phong normal interpolation for surfaces of revolution about z.
4    
5     11/7/88
6    
7     (A1,A2) = (Mz,Bz)
8     (A3,A4) = (Mr,Br)
9     }
10    
11 gwlarson 2.2 rev_dr = rev_rad*A3 + A4;
12     rev_rad = sqrt(Px*Px + Py*Py);
13    
14 greg 1.1 rev_dx = rev_dr * Px/rev_rad;
15     rev_dy = rev_dr * Py/rev_rad;
16     rev_dz = Pz*A1 + A2;