00126: add comment in planet2.cfg for atmosphere2 arguments

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Summary: add comment in planet2.cfg for atmosphere2 arguments

Created: 2008–12–04 11:01

Status: Released

Category: Request

From: frankie

Version: 2.0

Released_In: 2.3

Description:

there is a comment describing the arguments for the atmosphere option to planet2, but the new atmosphere2 syntax is not commented to explain what the arguments are.

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Comments

frankie October 19, 2012, at 01:20 PM: Unlike the atmosphere command, atmosphere2 replaces the "exponential" and "linear" terms with a single "density_falloff_exponent" term that defines how fast the density of the atmosphere falls to zero.

#         atmosphere2( surface_density, end_elevation, sR, sG, sB [, density_falloff_exponent [, aRatio, aR, aG, aB] ] )
#            /* surface_density = amount scattered per unit volume at the planet's surface */
#            /* end_elevation = altitude above planetary elipsoid where the atmosphere density falls below 0.1% of density at the planet's surface */
#            /* density_falloff_exponent = the exponent used in computing rate of density falloff (linear = 1.0) */
#            /* s(RGB) = normalized scattered color */
#            /* aRatio = absorbtion to scattering ratio */
#            /* a(RGB) = normalized absorbed color */

This was also added in planet2_earth.cfg as a comment.

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Associated Commits

| commit | 3425106a2771b06f89731a72b6e787bee54c84e9 link5 | || | Author: | Frankie | | Date: | Fri Oct 19 13:20:01 2012 -0500 | | Message: | [@Issue 00126: Updated comment to also show atmosphere2 syntax @] |

Affected Files:

configs/planet2_earth.cfg | 7 +++++++
 1 file changed, 7 insertions(+)