[ViewVC] Diff of: radiance/ray/src/rt/glass.c

Comparing ray/src/rt/glass.c (file contents):
Revision 2.4 by greg, Wed Oct 14 12:27:47 1992 UTC vs.
Revision 2.5 by greg, Mon Nov 30 12:02:54 1992 UTC

#	Line 27 \| Line 27 \| static char SCCSid[] = "$SunId$ LBL";
27		* 3 red grn blu
28		*
29		* The color is used for the transmission at normal incidence.
30	<	* To compute transmission (tn) from transmissivity (Tn) use:
30	>	* To compute transmissivity (tn) from transmittance (Tn) use:
31		*
32		* tn = (sqrt(.8402528435+.0072522239TnTn)-.9166530661)/.0036261119/Tn
33		*
34	<	* The transmission of standard 88% transmissivity glass is 0.96.
34	>	* The transmissivity of standard 88% transmittance glass is 0.96.
35		* A refractive index other than the default can be used by giving
36		* it as the fourth real argument. The above formula no longer applies.
37		*

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