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Feat: Write mesh overlay as a separate <stem>_mesh image

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--draw-mesh no longer modifies the primary render.  The clean HDR FITS and
tone-mapped image are written first, then the final image-plane mesh is
overlaid in place on the already-consumed HDR buffer and saved as a
<stem>_mesh sibling.  This applies uniformly to single-frame, movie-frame,
and imported lens-map renders, with derived paths validated before catalog,
spacetime, and render initialization.

Dummy PSF backends still write nothing and report ignoring --draw-mesh.  The
reference-image target now uses the configured image extension so the
ENABLE_PNG=0 test path passes, and the CLI tests cover clean-main identity,
sibling naming, PATH_MAX overflow, and zero-tolerance HDR comparison.

README, README.zh-CN, and usage.md describe the new naming; the mesh reference
asset is renamed to match.
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wyj committed 2026-09-26 17:01:25 -04:00
1 parent e4d093a9fe
commit 2a0197229a
7 files changed
+267 -68
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mk/reference_images.mk
+2 -2
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@@ -9,8 +9,8 @@ test: test-reference-images
test-reference-images: $(FLOATDIFF_SCRIPT) $(REFERENCE_DIR)/minkowski_ra1_dec1_640x360_HDR.fits $(REFERENCE_DIR)/schwarzschild_ra1_dec1_fov60_640x360_HDR.fits
$(MAKE) SPACETIME=minkowski ENABLE_HDR=1 backend
mkdir -p $(REFERENCE_TMP_DIR)
OMP_NUM_THREADS=16 $(BUILD_DIR)/minkowski_sky --catalog assets/sky_grid_5deg.csv --output $(REFERENCE_TMP_DIR)/minkowski_ra1_dec1_640x360.png --hdr-output --width 640 --height 360 --fov-deg 30 --look-ra-deg 1 --look-dec-deg 1 --exposure 0.1 --observer-radius 30 --observer-velocity 0 0 0 --psf-fwhm-pixels 2.7 --psf-moffat-beta 4.5 --max-magnification 1e300 --max-cache-psf-flux 1 --psf-relative-tail 1e-8 --psf-min-y 0 --coarse-cell-pixels 16 --refine-max-level 0 --refine-angle-abs-deg 0.001 --refine-angle-rel 0.1 --refine-jacobian-min 1e-3 --refine-min-edge-pixels 0.5 --refine-min-area-pixels2 0.25 --catalog-load-workers 4
OMP_NUM_THREADS=16 $(BUILD_DIR)/minkowski_sky --catalog assets/sky_grid_5deg.csv --output $(REFERENCE_TMP_DIR)/minkowski_ra1_dec1_640x360.$(IMAGE_EXT) --hdr-output --width 640 --height 360 --fov-deg 30 --look-ra-deg 1 --look-dec-deg 1 --exposure 0.1 --observer-radius 30 --observer-velocity 0 0 0 --psf-fwhm-pixels 2.7 --psf-moffat-beta 4.5 --max-magnification 1e300 --max-cache-psf-flux 1 --psf-relative-tail 1e-8 --psf-min-y 0 --coarse-cell-pixels 16 --refine-max-level 0 --refine-angle-abs-deg 0.001 --refine-angle-rel 0.1 --refine-jacobian-min 1e-3 --refine-min-edge-pixels 0.5 --refine-min-area-pixels2 0.25 --catalog-load-workers 4
python3 $(FLOATDIFF_SCRIPT) $(REFERENCE_DIR)/minkowski_ra1_dec1_640x360_HDR.fits $(REFERENCE_TMP_DIR)/minkowski_ra1_dec1_640x360_HDR.fits
$(MAKE) SPACETIME=schwarzschild ENABLE_HDR=1 backend
OMP_NUM_THREADS=16 $(BUILD_DIR)/schwarzschild_sky --catalog assets/sky_grid_5deg.csv --output $(REFERENCE_TMP_DIR)/schwarzschild_ra1_dec1_fov60_640x360.png --hdr-output --width 640 --height 360 --fov-deg 60 --look-ra-deg 1 --look-dec-deg 1 --exposure 0.1 --observer-radius 30 --observer-velocity 0 0 0 --psf-fwhm-pixels 2.7 --psf-moffat-beta 4.5 --max-magnification 1e300 --max-cache-psf-flux 1 --psf-relative-tail 1e-8 --psf-min-y 0 --coarse-cell-pixels 16 --refine-max-level 0 --refine-angle-abs-deg 0.001 --refine-angle-rel 0.1 --refine-jacobian-min 1e-3 --refine-min-edge-pixels 0.5 --refine-min-area-pixels2 0.25 --catalog-load-workers 4
OMP_NUM_THREADS=16 $(BUILD_DIR)/schwarzschild_sky --catalog assets/sky_grid_5deg.csv --output $(REFERENCE_TMP_DIR)/schwarzschild_ra1_dec1_fov60_640x360.$(IMAGE_EXT) --hdr-output --width 640 --height 360 --fov-deg 60 --look-ra-deg 1 --look-dec-deg 1 --exposure 0.1 --observer-radius 30 --observer-velocity 0 0 0 --psf-fwhm-pixels 2.7 --psf-moffat-beta 4.5 --max-magnification 1e300 --max-cache-psf-flux 1 --psf-relative-tail 1e-8 --psf-min-y 0 --coarse-cell-pixels 16 --refine-max-level 0 --refine-angle-abs-deg 0.001 --refine-angle-rel 0.1 --refine-jacobian-min 1e-3 --refine-min-edge-pixels 0.5 --refine-min-area-pixels2 0.25 --catalog-load-workers 4
python3 $(FLOATDIFF_SCRIPT) $(REFERENCE_DIR)/schwarzschild_ra1_dec1_fov60_640x360_HDR.fits $(REFERENCE_TMP_DIR)/schwarzschild_ra1_dec1_fov60_640x360_HDR.fits