In modernopengl add support for buffered draw tile collection.

This is first cached function implemented in modernopengl.
Also add support for bind buffer attributes.
Add finalize method to convert any cached data into data for GPU.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gui/widgets/button.cpp b/src/gui/widgets/button.cpp
index 54d15391b..de2bd0c8b 100644
--- a/src/gui/widgets/button.cpp
+++ b/src/gui/widgets/button.cpp
@@ -586,6 +586,7 @@ void Button::draw(Graphics *graphics)
                         imageX, imageY);
                 }
             }
+            graphics->finalize(mVertexes2);
         }
         graphics->drawTileCollection(mVertexes2);
     }