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Fix model material access with empty entries

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Allow model instance material APIs to fall back to asset material slots when instance entries have not been initialized yet. Lazily initialize entries before writing material overrides so imported prefab StaticModel instances can call GetMaterial and SetMaterial without assertion failures.\n\nFixes #3801.
This commit is contained in:
luchu1993
2026-06-20 10:22:51 +08:00
parent 396f412f87
commit 9943959e76
4 changed files with 15 additions and 8 deletions
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Source/Engine/Level/Actors/AnimatedModel.cpp
+2 -2
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@@ -1317,8 +1317,8 @@ MaterialBase* AnimatedModel::GetMaterial(int32 entryIndex)
SkinnedModel->WaitForLoaded();
else
return nullptr;
CHECK_RETURN(entryIndex >= 0 && entryIndex < Entries.Count(), nullptr);
MaterialBase* material = Entries[entryIndex].Material.Get();
CHECK_RETURN(entryIndex >= 0 && entryIndex < SkinnedModel->MaterialSlots.Count(), nullptr);
MaterialBase* material = entryIndex < Entries.Count() ? Entries[entryIndex].Material.Get() : nullptr;
if (!material)
{
material = SkinnedModel->MaterialSlots[entryIndex].Material.Get();