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/slider.cpp b/src/gui/widgets/slider.cpp
index 6c2224150..e36c24b2c 100644
--- a/src/gui/widgets/slider.cpp
+++ b/src/gui/widgets/slider.cpp
@@ -282,6 +282,7 @@ void Slider::draw(Graphics *graphics)
                         (mDimension.height - img->getHeight()) / 2);
                 }
             }
+            graphics->finalize(mVertexes);
         }
         graphics->drawTileCollection(mVertexes);
     }