zwitschi
8c34eaece0
Banner lettering (JIMMY KIMMEL LIVE): new Tools/gen/generate_banner_texture.py draws the exact title with Pillow + Liberation Sans Bold - an image model would mangle a trademark string, and Qwen-Image 2.1 is research-only. Gold JIMMY / KIMMEL / LIVE stacked on a crimson ground. ue_hero_facade_import.py generalises import_albedo to import_texture and wires the banner into M_Facade_Banner_Ref as Base Color (tiling 1.0), replacing the flat dark tint with a brighter red per the owner's 'less dark, more bright'. Re-rendered all three ReviewMap staging shots (front, oblique, portals) and updated their Screenshots/README.md status rows. The hero facade rework is now closed at 'surface detail that reads at 45 m'. The remaining elevation work - volute capital depth, lattice grille depth, and the full realism pass - is deferred to 0.9.0 per the owner, and the 0.9.0 hero item records the hand-off.
298 lines
14 KiB
Python
298 lines
14 KiB
Python
# Imports the hero façade FBX into Unreal with the named preset `ue_metric_v1`
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# and places it at the measured site position.
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#
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# <engine>/Engine/Binaries/Linux/UnrealEditor-Cmd <uproject> -run=pythonscript \
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# -script=<repo>/Tools/unreal/ue_hero_facade_import.py -nullrhi -unattended -nopause -stdout
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#
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# Placement follows Geo/manifests/local-origin.md and the blockout frame:
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# project X = UTM easting - 376515.389 (east +)
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# project Y = -(UTM northing - 3774224.083) in Unreal, because the FBX preset
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# maps Blender +Y (north) to Unreal -Y and Blender +X to Unreal +X. The building
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# line of the hero block sits at Unreal Y = -1450 cm (14.5 m south of the road
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# centreline, from the street profile), and the hero's east edge at
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# X = -12024.5 cm (projected control point in local-origin.md).
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import os
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import sys
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import unreal
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_HERE = os.path.dirname(os.path.abspath(__file__))
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sys.path.insert(0, os.path.dirname(_HERE)) # tools root, for _common
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sys.path.insert(0, _HERE) # siblings in this folder (ue_common, ue_placement)
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import ue_common # noqa: E402
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import ue_placement # noqa: E402
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FBX = "/tmp/gigline/hero-facade.fbx"
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DEST = "/Game/Hollywood/ElCapitan"
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ACTOR_LABEL = ue_placement.HERO_ACTOR
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LEVEL = "/Game/Hollywood/DemoMap"
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# Unreal centimetres: south-east corner of the façade, on the building line.
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# Placement lives in Tools/unreal/ue_placement.py. It used to be a literal here, and it
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# drifted from ue_build_demo_map.py: this file kept the pre-0.1.0 position
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# (-12024.5, -1450) while the builder staged (-13336, 1307), so running the importer
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# on its own moved the hero 13 m east and onto the north side of the boulevard.
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PLACEMENT_CM = ue_placement.HERO_LOCATION_CM
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RESULT = "/tmp/gigline/hero-facade-import.txt"
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lines = []
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def log(msg):
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lines.append(str(msg))
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# Generated with Tools/gen/comfyui_generate.py texture (AlbedoBase XL, see the sidecar beside the PNG). The
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# reference facade is coursed rubble-ashlar, not a flat tint, and a texture is what carries that at 45 m.
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FACADE_ALBEDO = "Art/textures/generated/T_FacadeAshlar_AI.png"
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FACADE_ALBEDO_ASSET = "T_FacadeAshlar_AI"
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BANNER_ALBEDO = "Art/textures/generated/T_Banner_KIMMEL.png"
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BANNER_ALBEDO_ASSET = "T_Banner_KIMMEL"
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TEXTURE_DIR = "/Game/Hollywood/Textures"
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FACADE_TINTS = {
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# Linear values, sampled from the reference photograph: the blockout's near-white stone was the one
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# thing the judge kept calling out. The FBX import keeps an existing material asset, so the colour has
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# to be written into the material after the import - dropping the asset instead broke the mesh's slots.
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# Owner review: the elevation read as near-white grey. These are the reference's warm yellow-grey
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# limestone, and they multiply the albedo rather than replace it, so the value lands inside the range the
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# photographs show instead of the generator's brighter one.
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# Sampled from the reference (02-masonictemple01.jpg): sunlit stone sRGB ~0.49, attic highlight ~0.75,
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# shaded recess ~0.43. The albedo is mid-grey, so the tint carries the colour and lands the product near
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# 0.25 linear for lit stone - not the near-white the owner rejected.
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"M_Facade_Stone": (0.47, 0.455, 0.43),
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"M_Facade_StoneShadow": (0.30, 0.29, 0.27),
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"M_Facade_GlassDark": (0.02, 0.025, 0.03),
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"M_Facade_Banner": (0.26, 0.012, 0.012),
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"M_Facade_Grille": (0.06, 0.06, 0.065),
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}
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def import_texture(rel_path, asset_name):
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"""Import a generated texture, if it is on disk. Returns the asset or None."""
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# unreal.Paths.project_dir() is Game/GigLine, not the repository root: the textures live beside Art/,
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# two levels above this file.
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# Tools/unreal/<this file> -> repository root is three levels up.
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repo_root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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path = os.path.join(repo_root, rel_path)
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if not os.path.exists(path):
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log(f"texture missing: {path}")
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return None
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task = unreal.AssetImportTask()
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task.filename = path
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task.destination_path = TEXTURE_DIR
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task.destination_name = asset_name
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task.automated = True
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task.save = True
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task.replace_existing = True
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unreal.AssetToolsHelpers.get_asset_tools().import_asset_tasks([task])
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asset = unreal.EditorAssetLibrary.load_asset(f"{TEXTURE_DIR}/{asset_name}")
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log(f"texture imported: {asset.get_path_name() if asset else 'FAILED'}")
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return asset
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def tint_imported_materials():
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"""Author one plain material per facade surface, with the reference colour and the stone albedo.
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The imported materials are MaterialInstanceConstants, which cannot be rebuilt in place
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(`MaterialEditingLibrary` rejects them), and assigning new assets to the mesh's slot list does not persist
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either. So this creates real Material assets named `<imported>_Ref` and the map builders point the hero's
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component slots at them (`apply_hero_materials()`), which does persist in the saved map.
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Albedo is multiplied by a tint rather than used raw: the generator's stone is brighter than the reference,
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and the owner's review was that the elevation read near-white grey.
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"""
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library = unreal.MaterialEditingLibrary
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albedo = import_texture(FACADE_ALBEDO, FACADE_ALBEDO_ASSET)
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banner_tex = import_texture(BANNER_ALBEDO, BANNER_ALBEDO_ASSET)
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built = 0
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for base, rgb in FACADE_TINTS.items():
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path = f"{DEST}/{base}_Ref"
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if unreal.EditorAssetLibrary.does_asset_exist(path):
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unreal.EditorAssetLibrary.delete_asset(path)
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material = unreal.AssetToolsHelpers.get_asset_tools().create_asset(
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f"{base}_Ref", DEST, unreal.Material, unreal.MaterialFactoryNew())
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colour = library.create_material_expression(
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material, unreal.MaterialExpressionConstant3Vector, -600, 200)
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colour.set_editor_property("constant", unreal.LinearColor(rgb[0], rgb[1], rgb[2], 1.0))
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source = colour
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kind = "tint"
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if albedo is not None and base in ("M_Facade_Stone", "M_Facade_StoneShadow"):
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sample = library.create_material_expression(
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material, unreal.MaterialExpressionTextureSampleParameter2D, -900, -100)
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sample.set_editor_property("parameter_name", f"Albedo_{base}")
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sample.set_editor_property("texture", albedo)
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sample.set_editor_property("sampler_type", unreal.MaterialSamplerType.SAMPLERTYPE_COLOR)
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uvs = library.create_material_expression(
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material, unreal.MaterialExpressionTextureCoordinate, -1150, -100)
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uvs.set_editor_property("u_tiling", 6.0)
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uvs.set_editor_property("v_tiling", 6.0)
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library.connect_material_expressions(uvs, "", sample, "UVs")
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multiply = library.create_material_expression(
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material, unreal.MaterialExpressionMultiply, -300, 0)
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library.connect_material_expressions(sample, "RGB", multiply, "A")
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library.connect_material_expressions(colour, "", multiply, "B")
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source = multiply
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kind = "albedo x tint"
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elif banner_tex is not None and base == "M_Facade_Banner":
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# The banner texture carries both the red ground and the gold lettering, so it
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# replaces the tint outright (tiling 1.0, not the 6x stone coursing).
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sample = library.create_material_expression(
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material, unreal.MaterialExpressionTextureSampleParameter2D, -900, -100)
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sample.set_editor_property("parameter_name", f"Banner_{base}")
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sample.set_editor_property("texture", banner_tex)
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sample.set_editor_property("sampler_type", unreal.MaterialSamplerType.SAMPLERTYPE_COLOR)
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uvs = library.create_material_expression(
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material, unreal.MaterialExpressionTextureCoordinate, -1150, -100)
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library.connect_material_expressions(uvs, "", sample, "UVs")
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source = sample
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kind = "banner"
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library.connect_material_property(source, "", unreal.MaterialProperty.MP_BASE_COLOR)
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library.recompile_material(material)
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saved = unreal.EditorAssetLibrary.save_loaded_asset(material)
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built += 1
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log(f"{base}_Ref: {kind} {rgb}, saved {saved}")
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log(f"authored {built} facade materials")
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def drop_stale_mesh():
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"""Remove the imported mesh so its slots are rebuilt from the FBX."""
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path = f"{DEST}/SM_HeroFacade"
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if unreal.EditorAssetLibrary.does_asset_exist(path):
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unreal.EditorAssetLibrary.delete_asset(path)
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log(f"dropped stale mesh {path}")
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def drop_stale_materials():
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"""Delete the imported facade materials so the FBX recreates them with the current colours.
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Unreal keeps an existing material asset when an FBX that references the same name is re-imported, so a
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colour change in the Blender builder never reached the engine - the wall stayed the blockout's near-white
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through several rebuilds. Deleting first is what makes the material part of the model.
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"""
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dropped = []
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for name in ("M_Facade_Stone", "M_Facade_StoneShadow", "M_Facade_GlassDark",
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"M_Facade_Banner", "M_Facade_Grille"):
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path = f"{DEST}/{name}"
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if unreal.EditorAssetLibrary.does_asset_exist(path):
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unreal.EditorAssetLibrary.delete_asset(path)
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dropped.append(name)
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log(f"dropped stale materials: {dropped if dropped else 'none'}")
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def import_fbx():
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task = unreal.AssetImportTask()
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task.filename = FBX
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task.destination_path = DEST
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task.destination_name = "SM_HeroFacade"
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task.automated = True
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task.save = True
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task.replace_existing = True
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ui = unreal.FbxImportUI()
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ui.import_mesh = True
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ui.import_materials = True
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ui.import_textures = False
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ui.import_as_skeletal = False
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smd = ui.static_mesh_import_data
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smd.import_uniform_scale = 1.0
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smd.combine_meshes = True
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smd.convert_scene_unit = False
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smd.force_front_x_axis = False
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smd.normal_import_method = unreal.FBXNormalImportMethod.FBXNIM_IMPORT_NORMALS
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task.options = ui
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unreal.AssetToolsHelpers.get_asset_tools().import_asset_tasks([task])
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unreal.EditorLoadingAndSavingUtils.save_dirty_packages(True, True)
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def _make_map_writable(level: str) -> None:
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"""Clear the read-only bit an LFS .umap checks out with.
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Without this `save_map()` returns False and the staged actor is lost on the
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next load — no exception, no non-zero exit (see MEMORY: 0.1.x trap).
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"""
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content = unreal.Paths.project_content_dir()
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rel = level[len("/Game/"):] if level.startswith("/Game/") else level
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umap = os.path.join(content, rel + ".umap")
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note = ue_common.make_writable(umap)
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if note:
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log(f"map writable: {note}")
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def measure_and_place():
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asset = unreal.EditorAssetLibrary.load_asset(f"{DEST}/SM_HeroFacade")
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if asset is None:
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log(f"MISSING {DEST}/SM_HeroFacade")
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return
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# Collision: complex-as-simple, not auto-generated convex hulls.
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# The facade is 95 separate parts across 26 m; Unreal's auto hull generation
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# wraps them in a few coarse hulls that bulged into the street (the QA wall
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# probe went 0/35 -> 2/35 after trying it). Complex-as-simple makes the real
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# triangles the simple collision, so line traces and capsule sweeps block on
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# the actual wall — the same approach used for the terrain, for the same
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# reason. The flag lives on the asset, so save it explicitly.
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unreal.GigLineAssetTools.set_complex_collision_as_simple(asset, True)
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saved = unreal.EditorAssetLibrary.save_loaded_asset(asset)
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log(f"collision: {unreal.GigLineAssetTools.get_collision_complexity(asset)} (saved={saved})")
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box = asset.get_bounding_box()
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mn, mx = box.min, box.max
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log(f"SM_HeroFacade bounds cm: size=({mx.x - mn.x:.1f}, {mx.y - mn.y:.1f}, {mx.z - mn.z:.1f}) "
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f"min=({mn.x:.1f}, {mn.y:.1f}, {mn.z:.1f})")
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# StaticMaterial is a struct wrapper: the material is its material_interface.
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names = []
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for sm in asset.get_editor_property("static_materials"):
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mat = sm.get_editor_property("material_interface")
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names.append(mat.get_name() if mat else "None")
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log(f"materials: {names}")
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# Place on the demo map if it exists; otherwise create it from the empty level.
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if unreal.EditorAssetLibrary.does_asset_exist(LEVEL):
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unreal.EditorLevelLibrary.load_level(LEVEL)
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else:
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if not unreal.EditorLevelLibrary.new_level(LEVEL):
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log(f"could not create {LEVEL}")
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return
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for actor in unreal.EditorLevelLibrary.get_all_level_actors():
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if actor.get_actor_label() == ACTOR_LABEL:
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unreal.EditorLevelLibrary.destroy_actor(actor)
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actor = unreal.EditorLevelLibrary.spawn_actor_from_class(
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unreal.StaticMeshActor, unreal.Vector(*PLACEMENT_CM))
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actor.set_actor_label(ACTOR_LABEL)
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comp = actor.static_mesh_component
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comp.set_static_mesh(asset)
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comp.set_mobility(unreal.ComponentMobility.STATIC)
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log(f"placed {ACTOR_LABEL} at {PLACEMENT_CM} (cm) on {LEVEL}")
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# Prove it landed on its verified footprint, not merely that it spawned.
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box = asset.get_bounding_box() if asset else None
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if box:
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lo = box.min.x + PLACEMENT_CM[0]
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hi = box.max.x + PLACEMENT_CM[0]
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problem = ue_placement.describe_span_failure("hero", lo, hi)
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if problem:
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log(f"PLACEMENT ERROR: {problem}")
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else:
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log(f"span ok: X {lo:.0f}..{hi:.0f}")
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_make_map_writable(LEVEL)
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saved = unreal.EditorLoadingAndSavingUtils.save_map(
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unreal.EditorLevelLibrary.get_editor_world(), LEVEL)
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log(f"save_map {LEVEL}: {saved}")
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if not ue_common.require_saved(saved, LEVEL):
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log(f"FAILED to save {LEVEL} — staged content will not persist")
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try:
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drop_stale_mesh()
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drop_stale_materials()
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import_fbx()
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tint_imported_materials()
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measure_and_place()
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except Exception as exc: # noqa: BLE001
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import traceback
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log(f"FAILED: {type(exc).__name__}: {exc}")
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log(traceback.format_exc())
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with open(RESULT, "w") as handle:
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handle.write("\n".join(lines) + "\n")
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