@@ -2597,3 +2597,61 @@ (define-public gpaint
(home-page "https://www.gnu.org/software/gpaint/")
(license license:gpl3+)))
+(define-public tachyon
+ (package
+ (name "tachyon")
+ (version "0.99.5")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append
+ "mirror://sagemath/spkg/upstream/tachyon/tachyon-"
+ version ".tar.bz2"))
+ (sha256
+ (base32
+ "1xd6h5d4v6dsnm6w46bdcr15fwkcz44p8dncymfry50i4c83q809"))))
+ (build-system gnu-build-system)
+ (arguments
+ (list #:tests? #f ; no tests
+ #:make-flags #~(list "linux-thr")
+ #:phases
+ #~(modify-phases %standard-phases
+ (delete 'configure)
+ (add-after 'unpack 'prepare-src
+ (lambda _
+ (substitute* "unix/Make-arch"
+ (("CC = cc")
+ (string-append "CC = " #$(cc-for-target))))
+ (chdir "unix")))
+ (add-before 'build 'enable-png-jpeg-support
+ (lambda* (#:key inputs #:allow-other-keys)
+ (substitute* "Make-config"
+ (("USEJPEG=")
+ "USEJPEG = -DUSEJPEG")
+ (("JPEGLIB=")
+ "JPEGLIB = -ljpeg")
+ (("USEPNG=")
+ "USEPNG = -DUSEPNG")
+ (("PNGLIB=")
+ "PNGLIB = -lpng -lz"))))
+ (add-before 'build 'fix-paths
+ (lambda* (#:key inputs #:allow-other-keys)
+ (substitute* "Make-config"
+ (("SHELL=/bin/sh")
+ (string-append "SHELL=" (which "sh"))))))
+ (replace 'install
+ (lambda _
+ (install-file "../compile/linux-thr/tachyon"
+ (string-append #$output "/bin"))
+ (install-file "../compile/linux-thr/libtachyon.a"
+ (string-append #$output "/lib")))))))
+ (inputs (list libjpeg-turbo libpng))
+ ;; The server does not seem to be reliably accessible
+ (home-page "http://jedi.ks.uiuc.edu/~johns/raytracer/")
+ (synopsis "Multithreaded ray tracing software")
+ (description
+ "This package contains the Tachyon raytracer. It supports the typical
+ray tracer features, most of the common geometric primitives, shading and
+texturing modes, etc. It also supports less common features such as HDR image
+output, ambient occlusion lighting, and support for various triangle mesh and
+volumetric texture formats beneficial for molecular visualization.")
+ (license license:bsd-3)))