Add VolumeField NanoVDB asset pipeline

tests/Resources/Volume/test_volume_field.cpp

@@ -0,0 +1,42 @@
+#include <gtest/gtest.h>
+
+#include <XCEngine/Resources/Volume/VolumeField.h>
+
+using namespace XCEngine::Resources;
+
+namespace {
+
+TEST(VolumeField, CreatePreservesPayloadAndMetadata) {
+    const unsigned char payload[] = { 1, 2, 3, 4, 5, 6 };
+
+    VolumeField volumeField;
+    IResource::ConstructParams params;
+    params.name = "cloud.nvdb";
+    params.path = "Assets/cloud.nvdb";
+    params.guid = ResourceGUID::Generate(params.path);
+    volumeField.Initialize(params);
+
+    XCEngine::Math::Bounds bounds;
+    bounds.SetMinMax(
+        XCEngine::Math::Vector3(-1.0f, -2.0f, -3.0f),
+        XCEngine::Math::Vector3(4.0f, 5.0f, 6.0f));
+
+    ASSERT_TRUE(volumeField.Create(
+        VolumeStorageKind::NanoVDB,
+        payload,
+        sizeof(payload),
+        bounds,
+        XCEngine::Math::Vector3(0.5f, 0.25f, 0.125f)));
+
+    EXPECT_TRUE(volumeField.IsValid());
+    EXPECT_EQ(volumeField.GetType(), ResourceType::VolumeField);
+    EXPECT_EQ(volumeField.GetStorageKind(), VolumeStorageKind::NanoVDB);
+    EXPECT_EQ(volumeField.GetPayloadSize(), sizeof(payload));
+    EXPECT_EQ(volumeField.GetBounds().GetMin(), XCEngine::Math::Vector3(-1.0f, -2.0f, -3.0f));
+    EXPECT_EQ(volumeField.GetBounds().GetMax(), XCEngine::Math::Vector3(4.0f, 5.0f, 6.0f));
+    EXPECT_EQ(volumeField.GetVoxelSize(), XCEngine::Math::Vector3(0.5f, 0.25f, 0.125f));
+    EXPECT_EQ(static_cast<const unsigned char*>(volumeField.GetPayloadData())[0], 1u);
+    EXPECT_GT(volumeField.GetMemorySize(), sizeof(VolumeField));
+}
+
+} // namespace