Implemented scaling for instances

simulator/src/main.rs

@@ -25,15 +25,17 @@ struct RenderInstance {
     position: cgmath::Vector3<f32>,
     rotation: cgmath::Quaternion<f32>,
     color: [f32; 3],
+    scale: f32
 }
 
 impl RenderInstance {
     fn to_raw(&self) -> InstanceRaw {
         let model = cgmath::Matrix4::from_translation(self.position)
-            * cgmath::Matrix4::from(self.rotation);
+            * cgmath::Matrix4::from(self.rotation)
+            * cgmath::Matrix4::from_scale(self.scale);
         InstanceRaw {
             model: model.into(),
-            color: self.color
+            color: self.color,
         }
     }
 }
@@ -228,6 +230,7 @@ impl<'a> State<'a> {
                     1 => [0.0, 0.0, 1.0],
                     _ => [0.5, 0.5, 0.5],
                 },
+                scale: 0.1,
             }).collect::<Vec<_>>()
         };
 
@@ -275,6 +278,7 @@ impl<'a> State<'a> {
                     1 => [0.0, 0.0, 1.0],
                     _ => [0.5, 0.5, 0.5],
                 },
+                scale: 0.5,
             }).collect()
         };