b3dTFormedY

Returns Y component of last transform result (from b3dTFormPoint/Vector/Normal). Takes no parameters. Returns Y coordinate (Double) from g_lastTFormedResult. Reads g_lastTFormedResult.y value stored by b3dTFormPoint, b3dTFormVector, or b3dTFormNormal. Simple getter for transformed Y component.

This function retrieves transformed Y. Transform sequence: (1) Call b3dTFormPoint/Vector/Normal to transform coordinates, (2) Call b3dTFormedY (and X/Z) to retrieve components. Y-axis convention: returned value in user space (+Y up), already negated from internal DirectX space (-Y up) by TFormPoint/Vector/Normal. Use cases: (1) Position transforms (get world Y after local-to-world transform), (2) Direction transforms (get world direction Y after rotation), (3) Normal transforms (get transformed normal Y for lighting), (4) Attachment points (get world position Y of local offset), (5) Height queries (extract Y from transformed result). Common pattern: b3dTFormPoint(localX, localY, localZ, entity, 0), worldX=b3dTFormedX(), worldY=b3dTFormedY(), worldZ=b3dTFormedZ(). Typical usage: retrieve transformed coordinates after TFormPoint/Vector/Normal call, use for world position calculations or direction vectors. Result source: g_lastTFormedResult is global variable updated by TFormPoint/Vector/Normal (last transform overwrites previous result, not thread-safe). Performance: O(1) read (simple global variable access, instant). Alternative: b3dTFormVectorY convenience function combines transform and retrieval (single call instead of two). Related: b3dTFormedX/Z retrieve X and Z components, b3dTFormPoint/Vector/Normal perform transforms and store results, b3dTFormVectorY combines transform and Y retrieval.