Test 1: Near-Z Clipping
(DIV-001 CRITICAL)
- Reference triangle at Z=5.0 (safe), test triangle at Z controlled by
D-pad
- D-pad left/right cycles Z: 5.0, 1.0, 0.5, 0.1, 0.01, 0.001
- Hardware: garbage at Zā0. Flycast: clean disappearance.
Test 2: Depth Precision
(DIV-002 HIGH)
- Two overlapping quads (RED behind, GREEN front) separated by
delta=0.0001
- D-pad moves from Z=1 to Z=100
- Hardware: Z-fight at far range (1/W precision loss). Flycast: clean
GREEN.