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gltfio: expose getMaterialInstances to Java.

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Tested locally by hacking gltf-viewer on Android, added the following
lines to MainActivity:

```kotlin
for (mat in modelViewer.asset!!.materialInstances) {
    Log.d("gltf-viewer", mat.name)
}
```
This commit is contained in:
Philip Rideout
2020-05-08 10:26:46 -07:00
parent a3fb5c41f1
commit 9a47178b3d
5 changed files with 51 additions and 4 deletions
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21
android/gltfio-android/src/main/cpp/FilamentAsset.cpp
View File

@@ -65,6 +65,27 @@ Java_com_google_android_filament_gltfio_FilamentAsset_nGetEntities(JNIEnv* env,
env->ReleaseIntArrayElements(result, (jint*) entities, 0);
}
extern "C" JNIEXPORT jint JNICALL
Java_com_google_android_filament_gltfio_FilamentAsset_nGetMaterialInstanceCount(JNIEnv*, jclass,
jlong nativeAsset) {
FilamentAsset* asset = (FilamentAsset*) nativeAsset;
return asset->getMaterialInstanceCount();
}
extern "C" JNIEXPORT void JNICALL
Java_com_google_android_filament_gltfio_FilamentAsset_nGetMaterialInstances(JNIEnv* env, jclass,
jlong nativeAsset, jlongArray result) {
FilamentAsset* asset = (FilamentAsset*) nativeAsset;
jsize available = env->GetArrayLength(result);
jsize count = std::min(available, (jsize) asset->getMaterialInstanceCount());
jlong* dst = env->GetLongArrayElements(result, nullptr);
const MaterialInstance * const* src = asset->getMaterialInstances();
for (jsize i = 0; i < count; i++) {
dst[i] = (jlong) src[i];
}
env->ReleaseLongArrayElements(result, dst, 0);
}
extern "C" JNIEXPORT void JNICALL
Java_com_google_android_filament_gltfio_FilamentAsset_nGetBoundingBox(JNIEnv* env, jclass,
jlong nativeAsset, jfloatArray result) {