Geometry::setColorArray() tries to not reallocate the color array.
Geometry::setColorArray() tries to not reallocate the color array.

It also sets the buffer object dirty.

MicBosi/visualizationlibrary,Wulfire/visualizationlibrary,Wulfire/visualizationlibrary,MicBosi/visualizationlibrary,MicBosi/visualizationlibrary,Wulfire/visualizationlibrary