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fix: glTF instancing when loaded via buffer

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This commit is contained in:
Nick Fisher
2025-01-02 15:16:12 +08:00
parent 3e39aa3630
commit 8e0ba8ac4e
6 changed files with 9 additions and 6 deletions
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2
thermion_dart/native/include/c_api/TSceneManager.h
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@@ -48,7 +48,7 @@ extern "C"
EMSCRIPTEN_KEEPALIVE int SceneManager_removeFromScene(TSceneManager *tSceneManager, EntityId entity);
EMSCRIPTEN_KEEPALIVE void SceneManager_transformToUnitCube(TSceneManager *sceneManager, EntityId asset);
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGlbFromBuffer(TSceneManager *tSceneManager, const uint8_t *const, size_t length, bool keepData, int priority, int layer, bool loadResourcesAsync);
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGlbFromBuffer(TSceneManager *tSceneManager, const uint8_t *const, size_t length, int numInstances, bool keepData, int priority, int layer, bool loadResourcesAsync);
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGlb(TSceneManager *sceneManager, const char *assetPath, int numInstances, bool keepData);
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGltf(TSceneManager *sceneManager, const char *assetPath, const char *relativePath, bool keepData);

1
thermion_dart/native/include/scene/GltfSceneAsset.hpp
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@@ -42,6 +42,7 @@ namespace thermion
_materialInstances(materialInstances),
_materialInstanceCount(materialInstanceCount)
{
TRACE("Created GltfSceneAsset with %d reserved instances", asset->getAssetInstanceCount());
}
~GltfSceneAsset();

4
thermion_dart/native/src/c_api/TSceneManager.cpp
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@@ -57,10 +57,10 @@ extern "C"
}
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGlbFromBuffer(TSceneManager *tSceneManager, const uint8_t *const data, size_t length, bool keepData, int priority, int layer, bool loadResourcesAsync)
EMSCRIPTEN_KEEPALIVE TSceneAsset *SceneManager_loadGlbFromBuffer(TSceneManager *tSceneManager, const uint8_t *const data, size_t length, int numInstances, bool keepData, int priority, int layer, bool loadResourcesAsync)
{
auto *sceneManager = reinterpret_cast<SceneManager *>(tSceneManager);
auto *asset = sceneManager->loadGlbFromBuffer((const uint8_t *)data, length, 1, keepData, priority, layer, loadResourcesAsync);
auto *asset = sceneManager->loadGlbFromBuffer((const uint8_t *)data, length, numInstances, keepData, priority, layer, loadResourcesAsync);
return reinterpret_cast<TSceneAsset *>(asset);
}

2
thermion_dart/native/src/c_api/ThermionDartRenderThreadApi.cpp
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@@ -495,7 +495,7 @@ extern "C"
std::packaged_task<void()> lambda(
[=]() mutable
{
auto *asset = SceneManager_loadGlbFromBuffer(sceneManager, data, length, keepData, priority, layer, loadResourcesAsync);
auto *asset = SceneManager_loadGlbFromBuffer(sceneManager, data, length, numInstances, keepData, priority, layer, loadResourcesAsync);
callback(asset);
});
auto fut = _rl->add_task(lambda);

4
thermion_dart/native/src/scene/GltfSceneAsset.cpp
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@@ -19,7 +19,9 @@ namespace thermion
if (instanceNumber > _asset->getAssetInstanceCount() - 1)
{
Log("No instances available for reuse. When loading the asset, you must pre-allocate the number of instances you wish to make available for use. Try increasing this number.");
Log("glTF asset was created with %d instances reserved, and %d instances have been used. Increase the number of instances pre-allocated when the asset is loaded.",
_asset->getAssetInstanceCount(), _instances.size()
);
return std::nullptr_t();
}
TRACE("Creating instance %d", instanceNumber);

2
thermion_dart/native/src/scene/SceneManager.cpp
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@@ -369,7 +369,7 @@ namespace thermion
FilamentAsset *asset = _assetLoader->createInstancedAsset((const uint8_t *)data, length, instances.data(), numInstances);
Log("Created instanced asset.");
Log("Created glTF asset with %d instances.", numInstances);
if (!asset)
{