Download this PDF from FontCapture for a full list of the 128 characters in a standard keyboard font. Lightwriting How-To from Adorama Learning Center on Vimeo.Ĭlick the HD is Off button to view this fullscreen over at !įirst things first: Making the Light Writing alphabetThe first thing you need to do is create your alphabet–both capitals, lower case, numbers, symbols, and any other special characters you may want: 5 point stars, 6 point stars, spirals, squiggles, smileys, and whatnot. We used iMovie, Garage Band, along with Adobe Bridge CS4 for the making of this video, but you should be able to easily translate these steps to whichever video, audio and photo browser you are most comfortable with. Here’s a Lightwriting video we made to illustrate and point to this How-To on Vimeo So, here, well in time for the holiday season, is a step-by-step guide for making your own Light writing shots to make light writing videos, and even a light-writing font!
It was very well received by our friends, and several people asked how we went about the Light Writing bit.
I haven't yet looked at why ld.bfd makes mpi_fortran_argvs_null_ versioned local, that does seem odd.Last year, we made a holiday video stitched from a series of still frames of my wife spelling out “H-A-P-P-Y–H-O-L-I-D-A-Y-S” with a pocket LED flashlight. I believe it is a bug that lld and gold do not do this. This is old established behaviour, dating back to at least 1997. If at runtime the dynamic linker may choose the common symbol with the largest size, then it's quite correct for ld to do so too. OK, so we don't have STT_COMMON here (ld.bfd was implemented before STT_COMMON was added to the ELF spec), but the behaviour of common symbols is clear. If no such symbol is found, it looks for the STT_COMMON definition of that name that has the largest size." The ELF spec says of STT_COMMON symbols: "When the dynamic linker encounters a reference to a symbol that resolves to a definition of type STT_COMMON, it may (but is not required to) change its symbol resolution rules as follows: instead of binding the reference to the first symbol found with the given name, the dynamic linker searches for the first symbol with that name with type other than STT_COMMON. In a.o we have a STB_GLOBAL STT_OBJECT mpi_fortran_argvs_null_ SHN_COMMON symbol. What is the correct result when linking ld -shared -o a.so a.o b.so? In b.so we have a STB_GLOBAL STT_OBJECT mpi_fortran_argvs_null_ defined in. (The Fortran declaration in ompi/include/mpif-f08-types.h is problematic.Ĭharacter, dimension(1, 1), bind(C, name="mpi_fortran_argvs_null_") :: MPI_ARGVS_NULL) This affects the libopenmpi-dev package on Debian (it has patches to enable symbol versioning). Originally reported at but it turns out to be related to openmpi and GNU ld.