Implement volume rendering support

New subclass of QCustom3DItem, QCustom3DVolume is provided.
The documentation for the example will be done in a separate commit.

Change-Id: Idb3fdb0654c6bec7606ca012b75852a5a8412397
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/datavisualization/engine/drawer_p.h b/src/datavisualization/engine/drawer_p.h
index ffcea315..709503dd 100644
--- a/src/datavisualization/engine/drawer_p.h
+++ b/src/datavisualization/engine/drawer_p.h
@@ -75,7 +75,7 @@ public:
     inline GLfloat scaledFontSize() const { return m_scaledFontSize; }
 
     void drawObject(ShaderHelper *shader, AbstractObjectHelper *object, GLuint textureId = 0,
-                    GLuint depthTextureId = 0);
+                    GLuint depthTextureId = 0, GLuint textureId3D = 0);
     void drawSelectionObject(ShaderHelper *shader, AbstractObjectHelper *object);
     void drawSurfaceGrid(ShaderHelper *shader, SurfaceObject *object);
     void drawPoint(ShaderHelper *shader);