perf(engine): create OpenGL objects as needed instead of each frame

1 files changed, 11 insertions, 0 deletions

diff --git a/engine/src/opengl/vertex_array.rs b/engine/src/opengl/vertex_array.rs
index e1e1a15..da5d91e 100644
--- a/engine/src/opengl/vertex_array.rs
+++ b/engine/src/opengl/vertex_array.rs
@@ -125,6 +125,17 @@ impl VertexArray
     {
         unsafe { gl::BindVertexArray(self.array) }
     }
+
+    /// Does a weak clone of this vertex array. The vertex array itself is NOT copied in
+    /// any way this function only copies the internal vertex array ID.
+    ///
+    /// # Safety
+    /// The returned `VertexArray` must not be dropped if another `VertexArray`
+    /// referencing the same vertex array ID is used later.
+    pub unsafe fn clone_unsafe(&self) -> Self
+    {
+        Self { array: self.array }
+    }
 }
 
 impl Drop for VertexArray