Three-dimensional modeling apparatus, manufacturing method and computer program

A three-dimensional modeling apparatus for modeling a three-dimensional object by laminating a plurality of cross section bodies in a Z direction, the three-dimensional modeling apparatus comprising:

• a head unit for modeling the object by discharging a liquid that is to be a material of the object into each unit grille that is defined in accordance with a modeling resolution of the cross section body in an X direction, a modeling resolution of the cross section body in a Y direction, and a lamination interval of the cross section body in the Z direction;
• and
• a control unit for controlling the head unit,
• wherein the head unit is capable of individually discharging, into the unit grille, an achromatic liquid and a plurality of types of chromatic liquids for expressing a designated color, and
• in a case where one or more types of the chromatic liquids are discharged into the unit grille by controlling the head unit and the spatial volume of the unit grille is not filled with the one or more types of chromatic liquids, the control unit causes the achromatic liquid to be discharged into the unit grille in addition to the one or more types of chromatic liquids so as to fill the spatial volume of the unit grille with both the chromatic liquids and the achromatic liquid.