The chemical reactions and pathways resulting in the formation of isopentenyl diphosphate by the mevalonate-independent pathway that contributes to terpenoid biosynthesis. Isopentenyl diphosphate (IPP) is the fundamental unit in isoprenoid biosynthesis and is biosynthesized from pyruvate and glyceraldehyde 3-phosphate via intermediates, including 1-deoxy-D-xylulose 5-phosphate.