diff --git a/src/canvas/shader/dynamic_vertex.rs b/src/canvas/shader/dynamic_vertex.rs
index 348dc6e5..c3ba5f60 100644
--- a/src/canvas/shader/dynamic_vertex.rs
+++ b/src/canvas/shader/dynamic_vertex.rs
@@ -32,7 +32,7 @@ impl RuntimeVertexDef {
         // https://github.com/tomaka/vulkano-examples/blob/gltf/gltf/gltf_system.rs
 
 
-
+        num_vertices = 3;
 
 
 //        for (attribute_id, attribute) in primitive.attributes().enumerate() {
@@ -152,11 +152,18 @@ unsafe impl<I> VertexDefinition<I> for RuntimeVertexDef
                                AttributeInfo { offset: 0, format: binding.format }));
         }
 
+        // The number of actually bound inputs
         let buffers = vec![
             (0, mem::size_of::<i32>(), InputRate::Vertex),
+            (1, mem::size_of::<i32>(), InputRate::Vertex),
+            (2, mem::size_of::<i32>(), InputRate::Vertex),
+            (3, mem::size_of::<i32>(), InputRate::Vertex),
+            (4, mem::size_of::<i32>(), InputRate::Vertex),
+            (5, mem::size_of::<i32>(), InputRate::Vertex),
+            (6, mem::size_of::<i32>(), InputRate::Vertex),
         ].into_iter();
 
-        Ok((buffers_iter, attributes.into_iter()))
+        Ok((buffers, attributes.into_iter()))
     }
 }
 
@@ -172,4 +179,4 @@ unsafe impl VertexSource<Vec<Arc<dyn BufferAccess + Send + Sync>>> for RuntimeVe
             1                                                                                   // Number of instances
         )
     }
-}
\ No newline at end of file
+}