build script fixes, add ldflags build option
update and enhance demos
fix bug in 4x grid oversampling
warn if writePNG called while compiled without libpng
make shapes in ShapeList const
and add many other const needed due to snowball effect
slightly optimize Camera::makeRayPacket using _mm_shuffle_ps
make Vector SIMD vectorization disabled by default (causes problems)
fix bug in implicit reflection of transmissive surfaces,
when surface's reflection parameter is set to zero
#!/bin/sh
mkdir -p "$1"
cd "$1"
wget ftp://graphics.stanford.edu/pub/3Dscanrep/bunny.tar.gz
tar xzf bunny.tar.gz
rm bunny.tar.gz
rm -rf bunny/data
mv bunny/reconstruction/* bunny
rmdir bunny/reconstruction
wget ftp://graphics.stanford.edu/pub/3Dscanrep/happy/happy_recon.tar.gz
tar xzf happy_recon.tar.gz
rm happy_recon.tar.gz
mv happy_recon happy
wget ftp://graphics.stanford.edu/pub/3Dscanrep/dragon/dragon_recon.tar.gz
tar xzf dragon_recon.tar.gz
rm dragon_recon.tar.gz
mv dragon_recon dragon