public static CurveSampler FromGltf(GltfSerialization.GltfStorage storage, int inIndex, int outIndex)
{
return(new CurveSampler
{
In = storage.AccessorFromGltf(inIndex),
Out = storage.AccessorFromGltf(outIndex),
});
}
static void CreateBufferAccessorAndAdd(GltfSerialization.GltfStorage storage, int accessorIndex,
VertexBuffer b, string key)
{
var a = storage.AccessorFromGltf(accessorIndex);
if (a != null)
{
b.Add(key, a);
}
}
public static VertexBuffer FromGltf(this GltfAttributes attributes, GltfSerialization.GltfStorage storage)
{
var b = new VertexBuffer();
b.Add(VertexBuffer.PositionKey, storage.AccessorFromGltf(attributes.POSITION));
CreateBufferAccessorAndAdd(storage, attributes.NORMAL, b, VertexBuffer.NormalKey);
CreateBufferAccessorAndAdd(storage, attributes.TEXCOORD_0, b, VertexBuffer.TexCoordKey);
CreateBufferAccessorAndAdd(storage, attributes.TANGENT, b, VertexBuffer.TangentKey);
CreateBufferAccessorAndAdd(storage, attributes.COLOR_0, b, VertexBuffer.ColorKey);
CreateBufferAccessorAndAdd(storage, attributes.JOINTS_0, b, VertexBuffer.JointKey);
CreateBufferAccessorAndAdd(storage, attributes.WEIGHTS_0, b, VertexBuffer.WeightKey);
return(b);
}
static Mesh FromGltf(GltfSerialization.GltfStorage storage, GltfMesh x, GltfPrimitive primitive, bool isShared)
{
var mesh = new Mesh((TopologyType)primitive.mode)
{
VertexBuffer = primitive.attributes.FromGltf(storage)
};
if (isShared)
{
// create joined index buffer
mesh.IndexBuffer = storage.IndexBufferFromGltf(x.primitives.Select(y => y.indices).ToArray());
}
else
{
mesh.IndexBuffer = storage.AccessorFromGltf(primitive.indices);
}
if (primitive.targets != null)
{
for (int i = 0; i < primitive.targets.Count; ++i)
{
var gltfTarget = primitive.targets[i];
string targetName = null;
if (primitive.extras != null &&
primitive.extras.targetNames != null &&
i < primitive.extras.targetNames.Count
)
{
targetName = primitive.extras.targetNames[i];
}
var target = new MorphTarget(targetName)
{
VertexBuffer = gltfTarget.FromGltf(storage)
};
// validate count
foreach (var kv in target.VertexBuffer)
{
if (kv.Value.Count != mesh.VertexBuffer.Count)
{
throw new Exception();
}
}
mesh.MorphTargets.Add(target);
}
}
return(mesh);
}