Added volume rendering properties to config structure.
Added volume rendering properties to config structure.

ivoflipse/devide,nagyistoce/devide,zhangfangyan/devide,chrisidefix/devide,ivoflipse/devide,zhangfangyan/devide,nagyistoce/devide,fvpolpeta/devide,fvpolpeta/devide,chrisidefix/devide