forked from Ports/goldeneye-pc-port
James Dansereau
327e6fe1a7
New env-gated GE_D75D probe (gfx_pc.cpp) captures per-frame V/T token stream + per-triangle rejection/emission accounting for the front-end logo window. Findings (bare front-end boot, logo = frames ~244+, nv=93/nt=1018): - Slot-overwrite (M-195's leading hypothesis) REFUTED: the DL is streamed (V TTT...VTTT interleaved), max triangle vertex index = 15, so no cross-batch vertex clobbering can occur. - Rejection gates are not the cause: of 1018 tris/frame, trivial-reject=0, backface-cull ~520 (normal half), ~500 reach GL, all on-screen (NDC in [-1,1]^2). Not the invisible flag; vertex colors [0,255]; depth normal. - PPM analysis: logo window renders 0-33 content px/frame (the 'tiny fragment'), vs title quads at 8.36% coverage. - Narrowed cause: combine mode 0x009ffe4f19ffe4f1 parses to rgb a=TEXEL0 c=SHADE (texture-modulate); gfx_generate_cc sets used_textures[0]=1, but the material still renders black-on-black. Next step: trace where the TEXEL0 sampler is lost between combiner build and draw (shader_id0 -> GL program / prg[tm] / texture upload). Port-layer fast3d only; no rule-2 sign-off needed. Probes env-gated, inert without GE_D75D (verified: 0 lines in a normal run).