Add navigation cube

assets/navigation_cube/cube.mtl

@@ -0,0 +1,62 @@
+# Blender 3.4.1 MTL File: 'cube.blend'
+# www.blender.org
+
+newmtl bottom
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd bottom.png
+
+newmtl front
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd front.png
+
+newmtl left
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd left.png
+
+newmtl rear
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd rear.png
+
+newmtl right
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd right.png
+
+newmtl top
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd top.png

assets/navigation_cube/cube.obj

@@ -0,0 +1,51 @@
+# Blender 3.4.1
+# www.blender.org
+mtllib cube.mtl
+o Cube
+v 1.000000 1.000000 1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+v 1.000000 1.000000 -1.000000
+v 1.000000 -1.000000 -1.000000
+v -1.000000 1.000000 -1.000000
+v -1.000000 -1.000000 -1.000000
+vn -0.0000 1.0000 -0.0000
+vn -1.0000 -0.0000 -0.0000
+vn -0.0000 -0.0000 -1.0000
+vn -0.0000 -1.0000 -0.0000
+vn -0.0000 -0.0000 1.0000
+vn 1.0000 -0.0000 -0.0000
+vt 0.999900 0.000100
+vt 0.999900 0.999900
+vt 0.000100 0.999900
+vt 0.999900 0.999900
+vt 0.999900 0.000100
+vt 0.000100 0.000100
+vt 0.000100 0.000100
+vt 0.999900 0.999900
+vt 0.000100 0.999900
+vt 0.999900 0.000100
+vt 0.000100 0.999900
+vt 0.000100 0.000100
+vt 0.000100 0.999900
+vt 0.999900 0.999900
+vt 0.000100 0.000100
+vt 0.999900 0.000100
+vt 0.000100 0.999900
+vt 0.999900 0.999900
+vt 0.999900 0.000100
+vt 0.000100 0.000100
+s 0
+usemtl top
+f 1/1/1 5/14/1 7/17/1 3/7/1
+usemtl left
+f 4/10/2 3/8/2 7/17/2 8/20/2
+usemtl front
+f 2/5/5 1/2/5 3/9/5 4/12/5
+usemtl right
+f 6/16/6 5/14/6 1/3/6 2/6/6
+usemtl rear
+f 8/19/3 7/18/3 5/13/3 6/15/3
+usemtl bottom
+f 6/16/4 2/4/4 4/11/4 8/20/4

crates/fj-math/src/transform.rs

@@ -40,6 +40,13 @@ impl Transform {
         ))
     }
 
+    /// Construct a scaling
+    pub fn scale(scaling_factor: f64) -> Self {
+        Self(nalgebra::Transform::from_matrix_unchecked(
+            nalgebra::OMatrix::new_scaling(scaling_factor),
+        ))
+    }
+
     /// Transform the given point
     pub fn transform_point(&self, point: &Point<3>) -> Point<3> {
         Point::from(self.0.transform_point(&point.to_na()))
@@ -119,6 +126,11 @@ impl Transform {
         array.map(Scalar::from)
     }
 
+    /// Return a copy of the inner nalgebra transform
+    pub fn get_inner(&self) -> nalgebra::Transform<f64, nalgebra::TAffine, 3> {
+        self.0
+    }
+
     /// Transform the given axis-aligned bounding box
     pub fn transform_aabb(&self, aabb: &Aabb<3>) -> Aabb<3> {
         Aabb {

crates/fj-viewer/Cargo.toml

@@ -18,11 +18,18 @@ egui = "0.20.1"
 egui-wgpu = "0.20.0"
 fj-interop.workspace = true
 fj-math.workspace = true
+nalgebra = "0.32.1"
+tobj = "3.2.4"
 raw-window-handle = "0.5.0"
 thiserror = "1.0.35"
 tracing = "0.1.37"
 wgpu_glyph = "0.18.0"
 
+[dependencies.image]
+version = "0.24"
+default-features = false
+features = ["png", "jpeg"]
+
 [dependencies.rfd]
 version = "0.11.1"
 default_features = false

crates/fj-viewer/src/assets.rs

@@ -0,0 +1,59 @@
+pub struct Assets<'a> {
+    pub cube_obj: &'a [u8],
+    pub cube_mtl: &'a [u8],
+    pub front_texture: &'a [u8],
+    pub right_texture: &'a [u8],
+    pub rear_texture: &'a [u8],
+    pub left_texture: &'a [u8],
+    pub top_texture: &'a [u8],
+    pub bottom_texture: &'a [u8],
+}
+
+impl<'a> Assets<'a> {
+    pub fn get_instance() -> Self {
+        let cube_obj: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/cube.obj");
+        let cube_mtl: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/cube.mtl");
+        let front_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/front.png");
+        let right_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/right.png");
+        let rear_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/rear.png");
+        let left_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/left.png");
+        let top_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/top.png");
+        let bottom_texture: &[u8] =
+            include_bytes!("../../../assets/navigation_cube/bottom.png");
+
+        Self {
+            cube_obj,
+            cube_mtl,
+            front_texture,
+            right_texture,
+            rear_texture,
+            left_texture,
+            top_texture,
+            bottom_texture,
+        }
+    }
+
+    pub fn get_asset(&self, file_name: &str) -> &[u8] {
+        match file_name {
+            "cube.obj" => self.cube_obj,
+            "cube.mtl" => self.cube_mtl,
+            "front.png" => self.front_texture,
+            "right.png" => self.right_texture,
+            "rear.png" => self.rear_texture,
+            "left.png" => self.left_texture,
+            "top.png" => self.top_texture,
+            "bottom.png" => self.bottom_texture,
+            _ => unreachable!(
+                "An unknown asset: {} is trying to be loaded",
+                file_name
+            ),
+        }
+    }
+}

crates/fj-viewer/src/graphics/mod.rs

@@ -3,9 +3,12 @@
 mod draw_config;
 mod drawables;
 mod geometries;
+mod model;
+mod navigation_cube;
 mod pipelines;
 mod renderer;
 mod shaders;
+mod texture;
 mod transform;
 mod uniforms;
 mod vertices;