Isosurface Early Stage Companion Cube

thingiverse

Another isosurface takes shape, resembling the early stages of evolution for the trusty companion cube from Portal. Print Settings Printer: Eaglemoss Vector3 Rafts: No Supports: Yes Resolution: 0.2mm Infill: 20% Notes: Some lower sections could benefit from additional supports to avoid potential print failures. How I Designed This I began with code designed for my students, helping them launch 3D graphics projects by creating models in Vertex and Index Buffers programmatically. I then sourced the Marching Cubes function, modifying it to accept an equation and produce a Vertex Buffer containing a specified iso-surface of that equation. The resulting object was then displayed and exported as a basic obj file, which was further refined in Netfabb by stitching together fragments and truncating the bottom to ensure proper alignment on the build plate. I experimented with various equations until achieving this intriguing object, reminiscent of the early stages of evolution for the Portal Weighted Companion Cube. Equation: (cos(x) * cos(y) * cos(z) + fmod(x,1) * fmod(y,1) * fmod(z,1) * fmod(x, 1) * fmod(y, 1) * fmod(z, 1) - (x * x+y * y < 0.1 ) - (x * x + z * z < 0.1) - (z * z + y * y < 0.1)) * exp(-(x * x+y * y+z * z- PI * PI) ) = 0.7 Within the region of [-Pi,Pi] along all axes.