pcf development
minor updates to tutorial 42
Use shadow sampler in tutorial 42
Added ImageMagick initialization
cleanup
Bugfix - need to calculate world space and not clip space.
solve a quadratic equation to find the size of the bounding sphere
Fixed the calculation of the bounding sphere
Use WRAP when setting the stencil op
Fixed index ordering
add arcsyn submodule to get the framework bits
add a readme explaining the perl dependencies
implemented tutorial 01 in perl
implemented tutorial 02 in perl
implemented tutorial 03 in perl
implemented tutorial 04 in perl
implemented tutorial 05 in perl
implemented tutorial 06 in perl
implemented tutorial 07 in perl
implemented tutorial 08 in perl