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+## Protocol packets
+
+```rs
+type Obj = u128
+type Res = u128
+01 request_resource(name: Res)
+02 respond_resource(name: Res, data: Vec<u8>)
+03 add(id: Obj, prefab: Res)
+04 remove(id: Obj)
+05 position(id: Obj, pos: Vec3)
+06 pose(id: Obj, params: Vec<f32>)
+07 parent(parent: Obj, child: Obj)
+08 sound(id: Obj, data: Vec<u8>)
+```
+
+## Resource formats
+
+### Prefab
+
+```ts
+type Prefab = Part[];
+```
+
+### Part
+
+```ts
+type Part = {
+    mesh?: Mesh;
+    armature?: Armature;
+    fragment_shader?: Shader;
+    fragment_shader_data?: ShaderData;
+    vertex_shader?: Shader;
+    vertex_shader_data?: ShaderData;
+    texture?: Texture;
+};
+```
+
+### Mesh
+
+```
+[vertex count:u32] [index count:u32] ([x:f32] [y:f32] [z:f32] [u:f32] [v:f32])* ([n:u32])*
+```
+
+### Texture
+
+WebP
+
+### Shader
+
+glsl source, todo
+
+### ShaderData
+
+```
+([param:f32])*
+```
+
+## Player tree
+
+- LowerTorso (2x leg tilt)
+  - FootL
+  - FootR
+  - UpperTorso (2x arm tilt)
+    - HandL (5x finger, 5x tilt)
+    - HandR (5x finger, 5x tilt)
+    - Head (2x brow, 2x eyelid, 2x eye, 3x mouth)