Fix surface slice problem on Mac

Separate shader for slice surfaces.

Change-Id: I29f89dc718a4a5dde8d78e1f602283889087bf23
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/datavisualization/engine/surface3drenderer_p.h b/src/datavisualization/engine/surface3drenderer_p.h
index 7a4422e4..2c55d902 100644
--- a/src/datavisualization/engine/surface3drenderer_p.h
+++ b/src/datavisualization/engine/surface3drenderer_p.h
@@ -57,6 +57,8 @@ private:
     ShaderHelper *m_surfaceFlatShader;
     ShaderHelper *m_surfaceSmoothShader;
     ShaderHelper *m_surfaceGridShader;
+    ShaderHelper *m_surfaceSliceFlatShader;
+    ShaderHelper *m_surfaceSliceSmoothShader;
     ShaderHelper *m_selectionShader;
     ShaderHelper *m_labelShader;
     GLfloat m_heightNormalizer;