DOPE — visual recreation

Complex · The Gathering 1995 · 320×200 / mode 13h

Object stage

Software 3D path from stage 7: fixed-point 3×3 rotation matrix, per-vertex transform, divide-by-depth projection to a 320×200 target centered at (160,100).

Render tricks

Additive overlay add es:[di],eax Radix depth ordering (face sort) Nibble matte and eax,0f0f0f0fh Work-buffer persistence / background restore

Parameters

Rotation speed 1.00 Projection scale 256 Palette fade (DAC ramp) 0.85 Palette hue (RIX) 168 Posterize levels 32

Display · retina / 4K

Supersample (work buffer) ×4 Smooth upscale (off = authentic chunky pixels) CRT scanlines + vignette

Base render stays 320×200 like mode 13h, but the 3D pass and blit run at 320·N × 200·N internally and the canvas uses full devicePixelRatio — so it's razor-sharp on retina and 4K. ×8 ≈ 2560×1600 internal.

All effects below are reconstructed from the static dissection in dope-analysis.html — the matrix math, additive composition, bitmask depth partition and nibble/palette compromises described there, driven on the GPU instead of a 486.

Original: Dope by Complex (Jmagic, Jugi, Phantom, Reward). Recreation is an interpretation of the analysis, not the original binary.