86d76b3a26
sweep_leaf_ramp dumps the nested ptloop01/ptloop02 leaf keyframes -- position, alpha, rotation, scale and time -- which is where the ramp the port asked for actually lives. sweep_positions now also pools alpha against position per strip and prints the slope, with the quantisation stated: NDC prints to two decimals, so one frame's dx is 6.4 px and alpha is one level, and at three or four frames the two declared slopes (+0.0814 and -0.0651) are inside that noise. It is a direction and magnitude check, not a discrimination. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
79 lines
3.5 KiB
Python
Executable File
79 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Where the two rotated sweep strips are, per frame, and how their alpha ramps.
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sweep_positions.py <xenia_re_ui_draws_NN.log> [...]
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The blend map reports a quad's SIZE. That identifies an element and says nothing
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about whether it is on screen: a parked quad is still a draw call. This prints the
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NDC x-range and the per-vertex colour of every 8-vertex ADDITIVE draw, per frame,
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so "submitted" and "visible" stop being the same observation.
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NDC x is in [-1, +1] across the surface, so a strip overlaps the screen iff
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x_min < 1 and x_max > -1. Movement between frames is the loop running.
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"""
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import re
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import sys
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VIS_LO, VIS_HI = -1.0, 1.0
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def quads(line):
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vs = [(float(a), float(b), c) for a, b, c in
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re.findall(r"\[(-?\d+\.\d+),(-?\d+\.\d+),z=[-\d.]+,col=([0-9A-F]{8})\]", line)]
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return [vs[i:i + 4] for i in range(0, len(vs) - 3, 4)]
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def main():
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for path in sys.argv[1:]:
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print("=== %s ===" % path)
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lines = open(path).read().splitlines()
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rows = []
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frame = 0
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print("%-6s %-5s %-6s %-18s %-18s %-8s %s"
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% ("frame", "draw", "quad", "NDC x range", "NDC y range", "col", "on screen?"))
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for i, line in enumerate(lines):
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m = re.match(r"--- frame (\d+) ---", line)
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if m:
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frame = int(m.group(1))
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continue
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m = re.search(r"^\s*(\d+) prim=\d+ indices=(\d+).* blend=0x01010101", line)
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if not m or i + 1 >= len(lines):
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continue
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for k, q in enumerate(quads(lines[i + 1])):
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xs = [p[0] for p in q]
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ys = [p[1] for p in q]
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rows.append((frame, m.group(1), k, xs, ys, q[0][2]))
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on = min(xs) < VIS_HI and max(xs) > VIS_LO and min(ys) < VIS_HI and max(ys) > VIS_LO
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print("%-6d %-5s %-6d %7.2f .. %7.2f %7.2f .. %7.2f %-8s %s"
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% (frame, m.group(1), k, min(xs), max(xs), min(ys), max(ys),
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q[0][2], "ON SCREEN" if on else "parked off screen"))
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# ── alpha vs position, pooled per strip ────────────────────────────
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# The disc declares the ramp in the ptloop01/ptloop02 LEAF keyframes:
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# pteff03 x -39 -> 1521 over t 150..540, alpha 128 -> 255
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# pteff03a x 1111 -> -839 over t 150..630, alpha 128 -> 255
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# which predict d(alpha)/dx of +0.0814 and -0.0651 per design pixel.
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# This measures the same slope off the GPU. NDC prints to two decimals,
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# so one frame's dx is quantised to 6.4 px and alpha to 1 level -- with
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# only a handful of frames the two predictions are INSIDE that noise and
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# this cannot separate them. It is a direction and a magnitude check.
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by_h = {}
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for f, d, q, xs, ys, col in rows:
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h = round((max(ys) - min(ys)) / 2 * 720)
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if h < 900:
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continue
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by_h.setdefault(h, []).append((min(xs), int(col[0:2], 16)))
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print("alpha vs position, per tall strip (design px, alpha level):")
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for h, pts in sorted(by_h.items()):
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pts.sort()
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span_x = (pts[-1][0] - pts[0][0]) * 640
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span_a = pts[-1][1] - pts[0][1]
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slope = span_a / span_x if span_x else float("nan")
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print(" h=%-5d n=%d x %.0f..%.0f px alpha %d..%d d(alpha)/dx %+.4f"
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% (h, len(pts), pts[0][0] * 640, pts[-1][0] * 640,
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pts[0][1], pts[-1][1], slope))
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print()
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if __name__ == "__main__":
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main()
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