diff --git a/port/assimp_rs/src/camera/mod.rs b/port/assimp_rs/src/camera/mod.rs
index e69de29bb..26ca1185b 100644
--- a/port/assimp_rs/src/camera/mod.rs
+++ b/port/assimp_rs/src/camera/mod.rs
@@ -0,0 +1 @@
+pub use self::structs::{Camera};
diff --git a/port/assimp_rs/src/structs/anim.rs b/port/assimp_rs/src/structs/anim/anim.rs
similarity index 100%
rename from port/assimp_rs/src/structs/anim.rs
rename to port/assimp_rs/src/structs/anim/anim.rs
diff --git a/port/assimp_rs/src/structs/anim/mod.rs b/port/assimp_rs/src/structs/anim/mod.rs
new file mode 100644
index 000000000..a0d4b7daf
--- /dev/null
+++ b/port/assimp_rs/src/structs/anim/mod.rs
@@ -0,0 +1,6 @@
+mod anim;
+pub use self::anim::{
+    Animation,
+    NodeAnim,
+    MeshAnim,
+    MeshMorphAnim};
diff --git a/port/assimp_rs/src/structs/blob/blob.rs b/port/assimp_rs/src/structs/blob/blob.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/blob/mod.rs b/port/assimp_rs/src/structs/blob/mod.rs
new file mode 100644
index 000000000..ad7612c0a
--- /dev/null
+++ b/port/assimp_rs/src/structs/blob/mod.rs
@@ -0,0 +1,2 @@
+mod blob;
+
diff --git a/port/assimp_rs/src/structs/bone/bone.rs b/port/assimp_rs/src/structs/bone/bone.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/bone/mod.rs b/port/assimp_rs/src/structs/bone/mod.rs
new file mode 100644
index 000000000..758a15afc
--- /dev/null
+++ b/port/assimp_rs/src/structs/bone/mod.rs
@@ -0,0 +1,2 @@
+mod bone;
+
diff --git a/port/assimp_rs/src/structs/camera/camera.rs b/port/assimp_rs/src/structs/camera/camera.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/camera/mod.rs b/port/assimp_rs/src/structs/camera/mod.rs
new file mode 100644
index 000000000..d4d79d026
--- /dev/null
+++ b/port/assimp_rs/src/structs/camera/mod.rs
@@ -0,0 +1,2 @@
+mod camera;
+
diff --git a/port/assimp_rs/src/structs/color/color.rs b/port/assimp_rs/src/structs/color/color.rs
new file mode 100644
index 000000000..0b5fc6413
--- /dev/null
+++ b/port/assimp_rs/src/structs/color/color.rs
@@ -0,0 +1,27 @@
+#[derive(Clone, Debug, Copy)]
+struct Color3D {
+    r: f32,
+    g: f32,
+    b: f32
+}
+
+impl Color3D {
+    pub fn new(r_f32: f32, g_f32: f32, b_f32: f32) -> Color3D {
+        Color3D {r: r_f32, g: g_f32, b: b_f32 }
+    }
+}
+
+#[derive(Clone, Debug, Copy)]
+struct Color4D {
+    r: f32,
+    g: f32,
+    b: f32,
+    a: f32
+}
+
+impl Color4D {
+    pub fn new(r_f32: f32, g_f32: f32, b_f32: f32, a_f32: f32) -> Color4D {
+        Color4D {r: r_f32, g: g_f32, b: b_f32, a: a_f32 }
+    }
+}
+
diff --git a/port/assimp_rs/src/structs/color/mod.rs b/port/assimp_rs/src/structs/color/mod.rs
new file mode 100644
index 000000000..d88527ed1
--- /dev/null
+++ b/port/assimp_rs/src/structs/color/mod.rs
@@ -0,0 +1,5 @@
+mod color;
+pub use self::color::{
+    Color3D,
+    Color4D
+};
diff --git a/port/assimp_rs/src/structs/face/face.rs b/port/assimp_rs/src/structs/face/face.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/face/mod.rs b/port/assimp_rs/src/structs/face/mod.rs
new file mode 100644
index 000000000..ae5aa5bdb
--- /dev/null
+++ b/port/assimp_rs/src/structs/face/mod.rs
@@ -0,0 +1,2 @@
+mod face;
+
diff --git a/port/assimp_rs/src/structs/key/key.rs b/port/assimp_rs/src/structs/key/key.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/key/mod.rs b/port/assimp_rs/src/structs/key/mod.rs
new file mode 100644
index 000000000..b23779d35
--- /dev/null
+++ b/port/assimp_rs/src/structs/key/mod.rs
@@ -0,0 +1,2 @@
+mod key;
+
diff --git a/port/assimp_rs/src/structs/light/light.rs b/port/assimp_rs/src/structs/light/light.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/light/mod.rs b/port/assimp_rs/src/structs/light/mod.rs
new file mode 100644
index 000000000..a68b51970
--- /dev/null
+++ b/port/assimp_rs/src/structs/light/mod.rs
@@ -0,0 +1,2 @@
+mod light;
+
diff --git a/port/assimp_rs/src/structs/material/material.rs b/port/assimp_rs/src/structs/material/material.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/material/mod.rs b/port/assimp_rs/src/structs/material/mod.rs
new file mode 100644
index 000000000..54de8b399
--- /dev/null
+++ b/port/assimp_rs/src/structs/material/mod.rs
@@ -0,0 +1,2 @@
+mod material;
+
diff --git a/port/assimp_rs/src/structs/matrix/matrix.rs b/port/assimp_rs/src/structs/matrix/matrix.rs
new file mode 100644
index 000000000..4673b2d69
--- /dev/null
+++ b/port/assimp_rs/src/structs/matrix/matrix.rs
@@ -0,0 +1,64 @@
+#[derive(Clone, Debug, Copy)]
+struct Matrix3x3 {
+    a1: f32,
+    a2: f32,
+    a3: f32,
+    b1: f32,
+    b2: f32,
+    b3: f32,
+    c1: f32,
+    c2: f32,
+    c3: f32
+}
+
+#[derive(Clone, Debug, Copy)]
+struct Matrix4x4 {
+    a1: f32,
+    a2: f32,
+    a3: f32,
+    a4: f32,
+    b1: f32,
+    b2: f32,
+    b3: f32,
+    b4: f32,
+    c1: f32,
+    c2: f32,
+    c3: f32,
+    c4: f32,
+    d1: f32,
+    d2: f32,
+    d3: f32,
+    d4: f32
+}
+
+impl Matrix3x3 {
+    pub fn new(
+        a1_f32: f32, a2_f32: f32, a3_f32: f32,
+        b1_f32: f32, b2_f32: f32, b3_f32: f32,
+        c1_f32: f32, c2_f32: f32, c3_f32: f32
+    ) -> Matrix3x3 {
+        Matrix3x3 {
+            a1: a1_f32, a2: a2_f32, a3: a3_f32,
+            b1: b1_f32, b2: b2_f32, b3: b3_f32,
+            c1: c1_f32, c2: c2_f32, c3: c3_f32
+        }
+    }
+}
+
+impl Matrix4x4 {
+    pub fn new(
+        a1_f32: f32, a2_f32: f32, a3_f32: f32, a4_f32: f32,
+        b1_f32: f32, b2_f32: f32, b3_f32: f32, b4_f32: f32,
+        c1_f32: f32, c2_f32: f32, c3_f32: f32, c4_f32: f32,
+        d1_f32: f32, d2_f32: f32, d3_f32: f32, d4_f32: f32
+    ) -> Matrix4x4 {
+        Matrix4x4 {
+            a1: a1_f32, a2: a2_f32, a3: a3_f32, a4: a4_f32,
+            b1: b1_f32, b2: b2_f32, b3: b3_f32, b4: b4_f32,
+            c1: c1_f32, c2: c2_f32, c3: c3_f32, c4: c4_f32,
+            d1: d1_f32, d2: d2_f32, d3: d3_f32, d4: d4_f32 
+        }
+    }
+}
+
+
diff --git a/port/assimp_rs/src/structs/matrix/mod.rs b/port/assimp_rs/src/structs/matrix/mod.rs
new file mode 100644
index 000000000..b0fb1e1f9
--- /dev/null
+++ b/port/assimp_rs/src/structs/matrix/mod.rs
@@ -0,0 +1,4 @@
+mod matrix;
+pub use self::matrix::{
+    Matrix3x3,
+    Matrix4x4};
diff --git a/port/assimp_rs/src/structs/memory/memory.rs b/port/assimp_rs/src/structs/memory/memory.rs
new file mode 100644
index 000000000..c076f172a
--- /dev/null
+++ b/port/assimp_rs/src/structs/memory/memory.rs
@@ -0,0 +1,35 @@
+#[derive(Clone, Debug, Copy)]
+struct MemoryInfo {
+    textures: u32,
+    materials: u32,
+    meshes: u32,
+    nodes: u32,
+    animations: u32,
+    cameras: u32,
+    lights: u32,
+    total: u32
+}
+
+impl MemoryInfo {
+    pub fn new(
+            textures_uint: u32,
+            materials_uint: u32,
+            meshes_uint: u32,
+            nodes_uint: u32,
+            animations_uint: u32,
+            cameras_uint: u32,
+            lights_uint: u32,
+            total_uint: u32) -> MemoryInfo {
+        
+        MemoryInfo {
+            textures: textures_uint,
+            materials: materials_uint,
+            meshes: meshes_uint,
+            nodes: nodes_uint,
+            animations: animations_uint,
+            cameras: cameras_uint,
+            lights: lights_uint,
+            total: total_uint
+        }
+    }
+}
diff --git a/port/assimp_rs/src/structs/memory/mod.rs b/port/assimp_rs/src/structs/memory/mod.rs
new file mode 100644
index 000000000..8c8c31ce8
--- /dev/null
+++ b/port/assimp_rs/src/structs/memory/mod.rs
@@ -0,0 +1,2 @@
+mod memory;
+pub use self::memory::MemoryInfo;
diff --git a/port/assimp_rs/src/structs/mesh/mesh.rs b/port/assimp_rs/src/structs/mesh/mesh.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/mesh/mod.rs b/port/assimp_rs/src/structs/mesh/mod.rs
new file mode 100644
index 000000000..1c3ef651d
--- /dev/null
+++ b/port/assimp_rs/src/structs/mesh/mod.rs
@@ -0,0 +1,3 @@
+mod mesh;
+
+
diff --git a/port/assimp_rs/src/structs/meta/meta.rs b/port/assimp_rs/src/structs/meta/meta.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/meta/mod.rs b/port/assimp_rs/src/structs/meta/mod.rs
new file mode 100644
index 000000000..045294772
--- /dev/null
+++ b/port/assimp_rs/src/structs/meta/mod.rs
@@ -0,0 +1,2 @@
+mod meta;
+
diff --git a/port/assimp_rs/src/structs/node/mod.rs b/port/assimp_rs/src/structs/node/mod.rs
new file mode 100644
index 000000000..c1fc34cdb
--- /dev/null
+++ b/port/assimp_rs/src/structs/node/mod.rs
@@ -0,0 +1,2 @@
+mod node;
+
diff --git a/port/assimp_rs/src/structs/node/node.rs b/port/assimp_rs/src/structs/node/node.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/plane/mod.rs b/port/assimp_rs/src/structs/plane/mod.rs
new file mode 100644
index 000000000..c73a8ed45
--- /dev/null
+++ b/port/assimp_rs/src/structs/plane/mod.rs
@@ -0,0 +1,2 @@
+mod plane;
+
diff --git a/port/assimp_rs/src/structs/plane/plane.rs b/port/assimp_rs/src/structs/plane/plane.rs
new file mode 100644
index 000000000..2b0b74499
--- /dev/null
+++ b/port/assimp_rs/src/structs/plane/plane.rs
@@ -0,0 +1,23 @@
+#[derive(Clone, Debug, Copy)]
+struct Plane {
+    a: f32,
+    b: f32,
+    c: f32,
+    d: f32
+}
+
+impl Plane {
+    pub fn new(
+        a_f32: f32,
+        b_f32: f32,
+        c_f32: f32,
+        d_f32: f32
+    ) -> Plane {
+        Plane {
+            a: a_f32,
+            b: b_f32,
+            c: b_f32,
+            d: d_f32
+        }
+    }
+}
diff --git a/port/assimp_rs/src/structs/quaternion/mod.rs b/port/assimp_rs/src/structs/quaternion/mod.rs
new file mode 100644
index 000000000..bb2c0616c
--- /dev/null
+++ b/port/assimp_rs/src/structs/quaternion/mod.rs
@@ -0,0 +1,3 @@
+mod quaternion;
+
+pub use self::quaternion::Quaternion;
diff --git a/port/assimp_rs/src/structs/quaternion/quaternion.rs b/port/assimp_rs/src/structs/quaternion/quaternion.rs
new file mode 100644
index 000000000..970f5cce5
--- /dev/null
+++ b/port/assimp_rs/src/structs/quaternion/quaternion.rs
@@ -0,0 +1,7 @@
+use crate::vec;
+
+#[derive(Clone, Debug, Copy)]
+pub struct Quaternion {
+    _coordinates: vec::Vector4d
+
+}
diff --git a/port/assimp_rs/src/structs/ray/mod.rs b/port/assimp_rs/src/structs/ray/mod.rs
new file mode 100644
index 000000000..7f0be074e
--- /dev/null
+++ b/port/assimp_rs/src/structs/ray/mod.rs
@@ -0,0 +1,2 @@
+mod ray;
+
diff --git a/port/assimp_rs/src/structs/ray/ray.rs b/port/assimp_rs/src/structs/ray/ray.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/scene/mod.rs b/port/assimp_rs/src/structs/scene/mod.rs
new file mode 100644
index 000000000..5aea638ee
--- /dev/null
+++ b/port/assimp_rs/src/structs/scene/mod.rs
@@ -0,0 +1,2 @@
+mod scene;
+
diff --git a/port/assimp_rs/src/structs/scene/scene.rs b/port/assimp_rs/src/structs/scene/scene.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/string/mod.rs b/port/assimp_rs/src/structs/string/mod.rs
new file mode 100644
index 000000000..f599ba7cb
--- /dev/null
+++ b/port/assimp_rs/src/structs/string/mod.rs
@@ -0,0 +1,3 @@
+mod string;
+pub use self::string::MAXLEN;
+pub use self::string::Str;
diff --git a/port/assimp_rs/src/structs/string/string.rs b/port/assimp_rs/src/structs/string/string.rs
new file mode 100644
index 000000000..b88457df4
--- /dev/null
+++ b/port/assimp_rs/src/structs/string/string.rs
@@ -0,0 +1,41 @@
+pub const MAXLEN: usize = 1024;
+
+/// Want to consider replacing `Vec<char>`
+/// with a comparable definition at 
+/// https://doc.rust-lang.org/src/alloc/string.rs.html#415-417
+#[derive(Clone, Debug)]
+struct Str {
+    length: usize,
+    data: Vec<char>
+}
+
+impl Str {
+    pub fn new(len_u32: usize, data_string: String) -> Str {
+        Str {
+            length: len_u32,
+            data: data_string.chars().collect()
+        }
+    }
+}
+
+/// MaterialPropertyStr
+/// The size of length is truncated to 4 bytes on a 64-bit platform when used as a 
+/// material property (see MaterialSystem.cpp, as aiMaterial::AddProperty() ).
+#[derive(Clone, Debug)]
+struct MaterialPropertyStr {
+    length: usize,
+    data: Vec<char>
+}
+
+
+impl MaterialPropertyStr {
+    pub fn new(len_u32: usize, data_string: String) -> MaterialPropertyStr {
+        MaterialPropertyStr {
+            length: len_u32,
+            data: data_string.chars().collect()
+        }
+    }
+}
+
+   
+
diff --git a/port/assimp_rs/src/structs/texture/mod.rs b/port/assimp_rs/src/structs/texture/mod.rs
new file mode 100644
index 000000000..1b5c9308d
--- /dev/null
+++ b/port/assimp_rs/src/structs/texture/mod.rs
@@ -0,0 +1,3 @@
+mod texture;
+pub use self::texture::Texel;
+
diff --git a/port/assimp_rs/src/structs/texture/texture.rs b/port/assimp_rs/src/structs/texture/texture.rs
new file mode 100644
index 000000000..b2c72f30e
--- /dev/null
+++ b/port/assimp_rs/src/structs/texture/texture.rs
@@ -0,0 +1,19 @@
+#[derive(Clone, Debug, Copy)]
+struct Texel {
+    b: u32,
+    g: u32,
+    r: u32,
+    a: u32
+}
+
+impl Texel {
+    pub fn new(b_u32: u32, g_u32: u32,
+               r_u32: u32, a_u32: u32) -> Texel {
+        Texel {
+            b: b_u32,
+            g: g_u32,
+            r: r_u32,
+            a: a_u32
+        }
+    }
+}
diff --git a/port/assimp_rs/src/structs/transform/mod.rs b/port/assimp_rs/src/structs/transform/mod.rs
new file mode 100644
index 000000000..b80c43dd0
--- /dev/null
+++ b/port/assimp_rs/src/structs/transform/mod.rs
@@ -0,0 +1,2 @@
+mod transform;
+
diff --git a/port/assimp_rs/src/structs/transform/transform.rs b/port/assimp_rs/src/structs/transform/transform.rs
new file mode 100644
index 000000000..e69de29bb
diff --git a/port/assimp_rs/src/structs/vec/mod.rs b/port/assimp_rs/src/structs/vec/mod.rs
new file mode 100644
index 000000000..3613d5d48
--- /dev/null
+++ b/port/assimp_rs/src/structs/vec/mod.rs
@@ -0,0 +1,2 @@
+mod vec;
+
diff --git a/port/assimp_rs/src/structs/vec/vec.rs b/port/assimp_rs/src/structs/vec/vec.rs
new file mode 100644
index 000000000..ee0d194de
--- /dev/null
+++ b/port/assimp_rs/src/structs/vec/vec.rs
@@ -0,0 +1,48 @@
+struct Vector2d {
+    x: f32,
+    y: f32
+}
+
+struct Vector3d {
+    x: f32,
+    y: f32,
+    z: f32
+}
+
+struct Vector4d {
+    x: f32,
+    y: f32,
+    z: f32,
+    w: f32
+}
+
+impl Vector2d {
+    pub fn new(x_f32: f32, y_f32: f32) -> Vector2d {
+        Vector2d {
+            x: x_f32,
+            y: y_f32
+        }
+    }
+}
+
+impl Vector3d {
+    pub fn new(x_f32: f32, y_f32: f32, z_f32: f32) -> Vector3d {
+        Vector3d {
+            x: x_f32,
+            y: y_f32,
+            z: z_f32
+        }
+    }
+}
+
+impl Vector4d {
+    pub fn new(x_f32: f32, y_f32: f32, z_f32: f32, w_f32: f32) -> Vector4d {
+        Vector4d {
+            x: x_f32,
+            y: y_f32,
+            z: z_f32,
+            w: w_f32
+        }
+    }
+}
+
diff --git a/port/assimp_rs/src/structs/vertex/mod.rs b/port/assimp_rs/src/structs/vertex/mod.rs
new file mode 100644
index 000000000..97ae3eced
--- /dev/null
+++ b/port/assimp_rs/src/structs/vertex/mod.rs
@@ -0,0 +1,2 @@
+mod vertex;
+// pub use self::vertex::
diff --git a/port/assimp_rs/src/structs/vertex/vertex.rs b/port/assimp_rs/src/structs/vertex/vertex.rs
new file mode 100644
index 000000000..e69de29bb