79 lines
4 KiB
Python
79 lines
4 KiB
Python
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# Lot O4 : mipmaps et streaming des textures 3D qui en sont privees.
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#
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# Candidates : Texture2D de /Game dont MipGenSettings = NoMipmaps ou NeverStream = True, de dimensions en puissance
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# de 2, referencees par au moins un materiau (Material, MaterialInstanceConstant) et par aucun widget ni Blueprint.
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# Les textures d'interface ou chargees par nom (sans reference de materiau) ne sont jamais touchees.
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# Modification : MipGenSettings = FromTextureGroup, NeverStream = False. Rien d'autre.
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#
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# Usage :
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# UnrealEditor-Cmd.exe <projet> -run=pythonscript -script="<projet>/Tools/FixTextureMips.py [-apply]"
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# Sans -apply : simulation (liste ecrite dans Saved/Audit/o4_candidats.txt).
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import os
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import sys
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import unreal
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apply = "-apply" in sys.argv
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registry = unreal.AssetRegistryHelpers.get_asset_registry()
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registry.search_all_assets(True)
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opts = unreal.AssetRegistryDependencyOptions(include_soft_package_references=True, include_hard_package_references=True,
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include_searchable_names=False, include_soft_management_references=False,
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include_hard_management_references=False)
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MATERIAL_CLASSES = {"Material", "MaterialInstanceConstant"}
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def pow2(n):
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return n > 0 and (n & (n - 1)) == 0
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candidates, skipped = [], {}
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for a in registry.get_assets_by_class(unreal.TopLevelAssetPath("/Script/Engine", "Texture2D"), False):
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pkg = str(a.package_name)
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if not pkg.startswith("/Game/"):
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continue
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mips = str(a.get_tag_value("MipGenSettings") or "")
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never = str(a.get_tag_value("NeverStream") or "")
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if mips != "TMGS_NoMipmaps" and never != "True":
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continue
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dims = str(a.get_tag_value("Dimensions") or "0x0").split("x")
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if len(dims) != 2 or not (pow2(int(dims[0])) and pow2(int(dims[1]))):
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skipped["dimensions non puissance de 2"] = skipped.get("dimensions non puissance de 2", 0) + 1
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continue
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classes = set()
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for ref in registry.get_referencers(a.package_name, opts) or []:
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for ra in registry.get_assets_by_package_name(ref):
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classes.add(str(ra.asset_class_path.asset_name))
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if not (classes & MATERIAL_CLASSES):
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skipped["aucun materiau"] = skipped.get("aucun materiau", 0) + 1
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continue
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if classes - MATERIAL_CLASSES:
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key = "reference aussi par " + ",".join(sorted(classes - MATERIAL_CLASSES))
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skipped[key] = skipped.get(key, 0) + 1
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continue
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# Cheveux et masques de transparence exclus : les mipmaps y amincissent les meches et les decoupes a distance.
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name = pkg.rsplit("/", 1)[1]
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if "/Hairs/" in pkg or any(t in name for t in ("TR", "Trs", "Trans", "CUT", "_DO", "Cap")):
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skipped["cheveux ou masque de transparence"] = skipped.get("cheveux ou masque de transparence", 0) + 1
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continue
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candidates.append((pkg, mips, never, "x".join(dims)))
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out = os.path.join(unreal.Paths.project_saved_dir(), "Audit", "o4_candidats.txt")
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with open(out, "w", encoding="utf-8") as f:
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for c in candidates:
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f.write(";".join(c) + "\n")
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unreal.log_warning("FixTextureMips : {} candidate(s), ecartees {} -> {}".format(len(candidates), skipped, out))
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if apply:
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errors = 0
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for pkg, _, _, _ in candidates:
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tex = unreal.EditorAssetLibrary.load_asset(pkg)
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tex.set_editor_property("mip_gen_settings", unreal.TextureMipGenSettings.TMGS_FROM_TEXTURE_GROUP)
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tex.set_editor_property("never_stream", False)
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if tex.get_editor_property("mip_gen_settings") != unreal.TextureMipGenSettings.TMGS_FROM_TEXTURE_GROUP \
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or tex.get_editor_property("never_stream"):
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errors += 1
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unreal.log_error("FixTextureMips : echec sur " + pkg)
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continue
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if not unreal.EditorAssetLibrary.save_loaded_asset(tex, only_if_is_dirty=False):
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errors += 1
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unreal.log_error("FixTextureMips : sauvegarde impossible " + pkg)
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unreal.log_warning("FixTextureMips : {} texture(s) modifiee(s), {} erreur(s)".format(len(candidates) - errors, errors))
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