The current build of Blender 2.70a has OSL disabled. OSL is a major feature of blender and should be selectable at least by a USE flag.
How to reproduce: Launch Blender, switch to the cycles engine, create a material, write an osl script and add a script node.. for more details how to use this feature c.f. http://cgcookie.com/blender/lessons/introduction-to-osl-in-blender-cycles-part-01/ when loading the OSL script a message appears that OSL has been disable in this build. It is enabled in the binary provided by upstream. emerge --info Portage 2.2.8-r1 (default/linux/amd64/13.0/no-multilib, gcc-4.7.3, glibc-2.17, 3.12.13-gentoo x86_64) ================================================================= System uname: Linux-3.12.13-gentoo-x86_64-Intel-R-_Core-TM-_i7-4771_CPU_@_3.50GHz-with-gentoo-2.2 KiB Mem: 16111728 total, 6552304 free KiB Swap: 30427132 total, 30427132 free Timestamp of tree: Wed, 16 Apr 2014 09:00:01 +0000 ld GNU ld (GNU Binutils) 2.23.2 app-shells/bash: 4.2_p45 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.5-r3, 3.3.3 dev-util/cmake: 2.8.12.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.9.6-r3, 1.11.6, 1.13.4 sys-devel/binutils: 2.23.2 sys-devel/gcc: 4.7.3-r1 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.9 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo local_ebuilds ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA NVIDIA-CUDA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -march=native -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -march=native -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -march=native -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/src/LOCAL_EBUILDS" USE="acl alsa amd64 avx avx2 berkdb bzip2 cli cracklib crypt cxx dbus dri fma fontconfig fortran freetype gdbm gif iconv jpeg lcms mmx modules ncurses nls nptl opengl openmp pam pcre png readline session sse sse2 sse4_1 sse4_2 ssl ssse3 svg tcpd threads tiff truetype unicode xft zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en de fr" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="intel i965 nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON
can you provide a patch?
I don't think osl is packaged yet, so nothing I can do here so far.
if you want to push for this, you have to work on an ebuild and open a new bug requesting inclusion of OSL
I plan to create ebuild for it but it looks like OpenShadingLanguage has no distributed source packages except git.
There are several OSL ebuilds around on the internet. i.e. https://github.com/megabaks/stuff/blob/master/media-gfx/osl/osl-9999.ebuild They might be a starting point
I don't think OSL and related projects have ever provided archives of their releases. The ebuild will probably need to pull the tagged release from git. I've been building OSL manually and it's a fairly straight forward build.
we have a live ebuild of blender here https://github.com/hasufell/media-overlay if you want to add a cleaned up osl ebuild and add osl support to the blender live ebuild, provide a pull request Chances this goes into the tree are small right now, but who cares. Ebuild is ebuild.
OSL support is coming to v2.77a ebuilds. A new OSL ebuild has been built and should be added. Sorry for the long wait.
This needs to be changed to adding the osl package to portage as it doesn't exist yet.
This will be added with Blender v2.77a or better. For now, you can try the ebuilds from here (https://github.com/dracwyrm/gentoo-ebuilds) while we perfect them. They change a lot, so be warned on that.
This was going to be added, but can't as OSL only supports LLVM 3.4 and 3.5. There's been talk of supporting new versions, but nothing has come of this. Once there is support for 3.7 and above, this will be added. Packages like Open Source Radeon drivers need newer versions of LLVM as well as others, so this will prevent people from using OSL. Closed until newer LLVM support is added. Sorry.
