Hi, Im using GU_SDF to build SDF's from files. Whenever i try, i get a box as a result. [/img] // Class to pass volume created via SDF class VRAY_VolumeBuilder: public VRAY_Volume { public: VRAY_VolumeBuilder( GU_SDF_REF sdfRef_, UT_BoundingBox bbox_ ); ~VRAY_VolumeBuilder(); public: virtual void getBoxes( UT_RefArray<UT_BoundingBox> &boxes, float radius, float dbound, float zerothreshold ) const; virtual void getAttributeBinding( UT_StringArray &na