Implementing 2D TransferFunction.

FILES:

• VolumeViz/2DTransferFunction/main.cxx
• VolumeViz/2DTransferFunction/SoTransferFunction2D.cxx
• VolumeViz/2DTransferFunction/SoTransferFunction2D.h
• VolumeViz/2DTransferFunction/interface.iv
• VolumeViz/2DTransferFunction/utils.h
• VolumeViz/2DTransferFunction/utils.cxx
• VolumeViz/2DTransferFunction/customShader.glsl

SEE ALSO

SoVolumeRendering, SoTransferFunction