Backface cull
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Overview
backface_cull controls whether or not backward facing triangles are not filtered out when ray tracing.
Syntax
# on; default
set backface_cull, 1
# off; allows the visualization of the "other side" (inside) of a surface
set backface_cull, 0
Note: To allow or disallow visualization of the inside of a surface, see two_sided_lighting.
Examples
cull_backface ON
cull_backface OFF
