Inspired by the geometry of diatoms and the protista drawings by Ernst Haekel, HexLogic_A utilizes shading behavior and gradient transitions within a structural skin system. Based on a differential hexagonal tiling, each component reacts to environmental conditions through the relationship of the cell’s orientation to an incident solar vector. This relationship promotes shading in areas of high solar gain and cell dilation in areas of low gain. The component’s subdivision and scaling produces a range of associated conditions that vary from frame-like to panel-like, the result of which creates optimal lighting conditions and an assembly that is environmentally responsive. HexLogic_A deployed advanced VB.NET scripting and was developed in Grasshopper.