Tagged: Mac

Why we will be drooling over the new Mac Pro

It looks like something out of a science fiction movie (and apparently it looks a lot like a Japanese trash can too), but the Mac Pro will be a piece of reality in a few months.


People who love Apple hardware, and use computers for graphics rendering or video will be dying to get their hands on this device. Here are the top five reasons why we will want to see the new Mac Pro on our desktop:

1. The Design. What is it? A coffee grinder? It’s a bit weird for a computer, but increadibly sleek at the same time. It reminds me a bit of the SGI O2, but way cooler. This device will probably be a major iconic design in the Apple’s historical lineup. The current Mac Pro is a beautiful machine, but the new Mac Pro makes the old cheese grater look retro.

2. Power. With up to 12 cores of Xeon 5 processor and 40 GB per second PCIe bandwidth, the new Mac Pro can deliver cpu performance up to 2x the current Mac Pro.

3. Speed. The new Mac Pro will support up to 128GB of ram and feature 60GB per second memory bandwidth, 2x the current bandwidth. The storage is “Next generation PCIe flash storage” that can read/write at 1250MB per second. 20Gb per second thunderbolt expansion ports. Super fast.

3. Graphics. The new Mac Pro will have, standard, two AMD FirePro GPUs with up to 6GB of dedicated VRAM graphics. The machine supports 4k video and up to three 4k displays.

4. Size. It’s like an eighth the size of the current Mac Pro.

Extracting raw keyframe data from After Effects keyframe data

You can easily “export” keyframe data from After Effects by copying the key frames in the timeline, then pasting them to a text file.

We want to extract raw key frame data, from After Effects formatted key fame data, via shell script, so that it can be used by Maya or other animation apps.

After Effects keyframe data looks like this:

Adobe After Effects 8.0 Keyframe Data Units Per Second 29.97 Source Width 900 Source Height 506 Source Pixel Aspect Ratio 1 Comp Pixel Aspect Ratio 1 Effects Sound Keys #1 Output 1 #22 Frame 1 0.000261479 2 0.00608461 3 0.0153011 4 0.0274689 5 0.0395869 6 0.0493024 7 0.0562797 8 0.0557284

We need something more like this:

0.000261479 0.00608461 0.0153011 0.0274689 0.0395869 0.0493024 0.0562797 0.0557284

Use this shell script to extract the keys: AfterEffectsKeyExtract.sh
Read this for a detailed explanation of the script.
Usage (in the terminal): path/to/AfterEffectsKeyExtract.sh path/to/keyFrameData.txt

Use this shell script to batch process several files:
Usage (in the terminal): path/to/BatchExtract.sh path/to/directory

Also see: http://oliverwolfson.com/importing-keyframe-data-to-maya/

Here is a primer on shell scripting. You can run a shell script on a Mac or in Linux, through the Terminal, or on a PC with a app like Cygwin.

UPDATE! The NEW! The python script, linked here, will do the same, import After Effects Sound Keys keyframes, from .txt files, to Maya, but it will also take care of the formatting, so there is no need to run the shell script on your After Effects keyframes before importing. Look for the NEW! script.

Rename multiple files with Mac shell script

Simple renaming and renumbering script for multiple files

num=0 for j in *.jpg do mv "$j" `printf "myFILE.%05d.jpg" $num` num=`echo "$num + 1" | bc` done

Usage: In any text editor, modify the script so that the extension in the second line (here .jpg) exactly matches the extension of the files you want to modify. Also, change the file name in line four (here myFILE) to whatever name you want to use. In the Terminal, cd to the directory with your files. Paste the script to the terminal, hit enter.

Note, the way this is set up, the script will rename every file of the specified .extension in the current directory.

Replace file name suffix:

Another script. This script changes the suffix of each specified file in a directory. In this example from “myName_000_01.JPG” to “myName_000.jpg”

for i in *.JPG do mv $i `basename -s _01.JPG $i`.jpg done

Edit the the first line of the script so that it works on the appropriate files. In this example we have several files that have the extension of .JPG in common. Each of these files will be renamed.

The “mv” unix command is used to rename the files. Using the “basename” utility and the “-s” flag we can designate what part original name we want to keep, rather the suffix we want to remove. In this example the suffix we want to remove is “_01.JPG”.

Specify the new suffix that you want to add (here it’s “.jpg”).

Next, open a terminal window. Navigate to the directory where your files reside. Enter “sh” in the window, hit enter. Paste the script, and hit enter. That’s it.

scripts written with the assistance of Jeshua Lacock of OpenOSX.com