11-23-2012
Now it works , thank you to all who helped me.
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LEARN ABOUT DEBIAN
mksource
MKSOURCE(1) General Commands Manual MKSOURCE(1)
NAME
mksource - compute distant sources for RADIANCE image-based lighting
SYNOPSIS
mksource [ -d nsamps ][ -t thresh ][ -a maxang ] [ octree ]
DESCRIPTION
Mksource produces a RADIANCE scene description of distant illum sources corresponding to bright, concentrated regions in the given ambient
environment. Any local geometry is ignored in the input octree, which should be derived from a captured light probe and modeled as a dis-
tant hemispherical or spherical glow source. The output sources may then be combined with this environment to produce a more efficient
scene for rendering, faster and less prone to sampling artifacts.
The -d option may be used to specify the number of ray samples, which defaults to 262,000. Calculation time is roughly proportional to
this setting, and the default is fine enough to resolve sources the size of the sun (half a degree) or larger.
The -t option may be used to manually set the radiance threshold for sources, in watts/sr/meter^2. The default uses the top 2 percentile
of the environment, which is usally a good value.
The -a option may be used to specify a maximum source diameter, which defaults to 15 degrees. Mkillum silently enforces a maximum of 180
degrees for this option.
If no input octree is specified, the standard input is read.
EXAMPLE
To add sources with a maximum size of 20 degrees to the enviornment described in environ.oct:
mksource -a 20 environ.oct > srcs.rad
oconv -i environ.oct srcs.rad > env+srcs.oct
AUTHOR
Greg Ward
SEE ALSO
mkillum(1), rpict(1), rvu(1)
RADIANCE
04/11/05 MKSOURCE(1)