Toxicblend

*** Pre-Alpha code ***

A set of plugins that will bring the power of ToxicLibs, Boost Voronoi, jBullet and other geometric libraries to Blender 2.69+. There are several blender plugins. They send objects (vertices, edges/faces) over the net (via google protocol buffers) to a local JVM server. This server then computes the operation (volumetric brush, median axis, simplify 2D polygon, etc. etc) and sends the resulting object back to blender.

I have tested the code on Ubuntu 13.10 & 14.04 (64 bit), Gentoo (64 bit) and OSX 10.9 & 10.10 with mac ports installed.

Dependencies	Notes
http://blender.org 2.69 or higher	Only pure python code is used in blender, so blender addon installation is easy)
http://github.com/malthe/google-protobuf.git	Google protobufs with Python 3 support (only needed if you want to build and or modify the .proto file)
http://bitbucket.org/ead_fritz/toxiclibs	Toxiclibs fork with some minor tweaks (fork of http://toxiclibs.org) (managed by sbt)
http://github.com/toxicblend/jbulletd	Java port of bullet physics with double precision (fork of http://jbullet.advel.cz) (managed by sbt)
http://www.scalatest.org	Scala test suite (managed by sbt)
http://www.scala-sbt.org	Scala build tool
http://akka.io	Tested with version 2.3.4
http://www.boost.org version 1.55	It seems like only 'System' needs to be installed as a library, rest is header files)

Installation & running

Install sbt if not already installed. http://www.scala-sbt.org/

Install boost 1.55 (optional)

./bootstrap.sh --with-python-version=3.3 --with-libraries=system --prefix=/opt/local
b2 install
export BOOST_HOME=/opt/local/
export BOOST_ROOT=/opt/local/

(It is only the medianaxis and boostsimplify addon that uses this code, the rest of the addons will work without this step)

Copy the python files found in src/main/blender_addon/site-packages/ to the site-packages directory of blender. You will find the location with this command in the blender python console:
```
import site; site.getsitepackages()
```
If you like you can make soft links instead, that way the blender sitepackages will be up to date with your git repo.
Import the blender addons found in src/main/blender_addon to blender. Just running them as blender text blocks works.
Compile the jni code (optional)
```
export JAVA_HOME=...path to java.
    
example:export JAVA_HOME=/opt/oracle-jdk-bin-1.7.0.51/

cd toxicblend/src/cpp/boost/

cmake .
	
make
```
(It is only the medianaxis and boostsimplify addon that uses this code, the rest of the addons will work without this step)

compile the scala and java code using sbt

cd toxicblend

sbt

compile  (there are a few warnings generated from google-protobuf and jbulletd)

Run the Java server (still in sbt console)

run

If you experience problems with a missing java library (libmawt.so in my case) you can search for the location and add it to LD_LIBRARY_PATH and restart sbt

find / -name libmawt.so

/opt/oracle-jdk-bin-1.7.0.51/jre/lib/amd64/headless/libmawt.so

/opt/oracle-jdk-bin-1.7.0.51/jre/lib/amd64/xawt/libmawt.so

/opt/icedtea-bin-6.1.12.7/jre/lib/amd64/headless/libmawt.so 

/opt/icedtea-bin-6.1.12.7/jre/lib/amd64/xawt/libmawt.so

export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/opt/oracle-jdk-bin-1.7.0.51/jre/lib/amd64/xawt/

sbt

Run blender from a terminal
```
cd  .../blender-2.72b-linux-glibc211-x86_64/
./blender
```
If any of the addons should hang, you can abort plugin execution with ctrl-C in the terminal.
In blender, press space and search for the addons:

toxicblend_volume (converts edges to volumetric voxels)

toxicblend_metavolume (converts edges to volumetric voxels, stand alone pure python)

toxicblend_applyall (apply all transformations on an object, stand alone pure python)

toxicblend_dragoncurve (draws a parametric dragon curve as edges)

toxicblend_projectionoutline (orthogonally projects an object on an axis plane)

toxicblend_medianaxis (Using an experimental median axis algorithm (native boost code))

toxicblend_boostsimplify (Simplifies sequences of edges (native boost code))

toxicblend_simplegcodegenerator (generates layered gcode from a set of edges)

toxicblend_simplegcodeview (visualizes gcode as a set of edges)

toxicblend_zadjust (wraps a set of edges onto objects, similar to blender shrink wrap modifier but with an optional 'add z component' choise)

I use the combination of toxicblend_medianaxis, toxicblend_boostsimplify, toxicblend_zadjust and toxicblend_simplegcodegenerator to generate gcode for v-carved text onto curved surfaces.

Some day i will document in more detail what the addons actually does and how to use them :)

ecompositor/toxicblend

Toxicblend

Installation & running