public override void OnImportAsset(AssetImportContext ctx)
{
byte[] bytes = File.ReadAllBytes(ctx.assetPath);
// 12 byte header
// 0-4 - magic = "glTF"
// 4-8 - version = 2
// 8-12 - length = total length of glb, including Header and all Chunks, in bytes.
string magic = Encoding.ASCII.GetString(bytes.SubArray(0, 4));
if (magic != "glTF")
{
return;
}
uint version = System.BitConverter.ToUInt32(bytes, 4);
if (version != 2)
{
Debug.LogWarning("Importer does not support gltf version " + version);
return;
}
uint length = System.BitConverter.ToUInt32(bytes, 8);
// Chunk 0 (json)
uint chunkLength = System.BitConverter.ToUInt32(bytes, 12);
string chunkType = Encoding.ASCII.GetString(bytes.SubArray(16, 4));
string json = Encoding.ASCII.GetString(bytes.SubArray(20, (int)chunkLength));
// Load file and get directory
GLTFObject gltfObject = JsonUtility.FromJson <GLTFObject>(json);
string directoryRoot = Directory.GetParent(ctx.assetPath).ToString() + "/";
string mainFile = Path.GetFileName(ctx.assetPath);
gltfObject.Load(directoryRoot, mainFile);
// Create gameobject structure
GameObject[] roots = gltfObject.Create();
ApplyDefaultMaterial(roots);
SaveToAsset(ctx, roots);
AddMeshes(ctx, gltfObject);
AddMaterials(ctx, gltfObject);
AddTextures(ctx, gltfObject);
AddAnimations(ctx, gltfObject);
}
public override void OnImportAsset(AssetImportContext ctx)
{
// Load file and get directory
GLTFObject gltfObject = JsonUtility.FromJson <GLTFObject>(File.ReadAllText(ctx.assetPath));
string directoryRoot = Directory.GetParent(ctx.assetPath).ToString() + "/";
string mainFile = Path.GetFileName(ctx.assetPath);
gltfObject.Load(directoryRoot, mainFile);
// Create gameobject structure
GameObject[] roots = gltfObject.Create();
ApplyDefaultMaterial(roots);
SaveToAsset(ctx, roots);
AddMeshes(ctx, gltfObject);
AddMaterials(ctx, gltfObject);
AddTextures(ctx, gltfObject);
AddAnimations(ctx, gltfObject);
}