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gltf: Add GLTFHandleBinary::HANDLE_BINARY_EMBED_AS_UNCOMPRESSED

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This option allows for a safe fallback for embedded gltf textures in cases where VRAM compression is not needed.
Add an is_editor_hint guard around GLTFHandleBinary::HANDLE_BINARY_EXTRACT_TEXTURES, to use EMBED_AS_UNCOMPRESSED by default at runtime.
This provides an option for pixel art to be stored losslessly.
Additionally, respect project importer defaults for texture import settings.
Avoid writing and reimporting extracted textures identical to version on disk.
This commit is contained in:
Lyuma
2023-01-30 23:37:55 -08:00
parent 0810ecaafd
commit bc24d01359
6 changed files with 81 additions and 31 deletions
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9
editor/import/resource_importer_scene.cpp
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@@ -2289,7 +2289,14 @@ Node *ResourceImporterScene::pre_import(const String &p_source_file, const HashM
ERR_FAIL_COND_V(!importer.is_valid(), nullptr);
Error err = OK;
Node *scene = importer->import_scene(p_source_file, EditorSceneFormatImporter::IMPORT_ANIMATION | EditorSceneFormatImporter::IMPORT_GENERATE_TANGENT_ARRAYS, p_options, nullptr, &err);
HashMap<StringName, Variant> options_dupe = p_options;
// By default, the GLTF importer will extract embedded images into files on disk
// However, we do not want the advanced settings dialog to be able to write files on disk.
// To avoid this and also avoid compressing to basis every time, we are using the uncompressed option.
options_dupe["gltf/embedded_image_handling"] = 3; // Embed as Uncompressed defined in GLTFState::GLTFHandleBinary::HANDLE_BINARY_EMBED_AS_UNCOMPRESSED
Node *scene = importer->import_scene(p_source_file, EditorSceneFormatImporter::IMPORT_ANIMATION | EditorSceneFormatImporter::IMPORT_GENERATE_TANGENT_ARRAYS, options_dupe, nullptr, &err);
if (!scene || err != OK) {
return nullptr;
}