/usr/share/doc/raster3d/examples/example1.script is in raster3d-doc 3.0-3-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | #!/bin/bash
# E A Merritt January 2003
# Illustration of
# material properties
# file indirection
# R3D_LIB environmental variable
# gamma correction applied while rendering
#
export R3D_LIB="../materials"
render -gamma 1.1 -png < example1.r3d | display png:-
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