Add custom item support, part 1

Task-number: QTRD-2866

+ Added API for adding and removing custom items
+ Added custom data and custom render items
+ Added shaders for textured objects
+ Added custom item rendering draft to scatter
+ Fixed some shaders
- to be continued in part 2

Change-Id: I9735fd02fc9e86ae486cca4c06f6d7f2a4b0b7da
Reviewed-by: Mika Salmela <mika.salmela@digia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/datavisualization/global/datavisualizationglobal_p.h b/src/datavisualization/global/datavisualizationglobal_p.h
index f0a4f469..612b7bea 100644
--- a/src/datavisualization/global/datavisualizationglobal_p.h
+++ b/src/datavisualization/global/datavisualizationglobal_p.h
@@ -60,6 +60,7 @@ static const QQuaternion identityQuaternion;
 static const QVector4D selectionSkipColor = QVector4D(255.0f, 255.0f, 255.0f, 255.0f);
 static const QVector4D invalidColorVector = QVector4D(-1.0f, -1.0f, -1.0f, -1.0f);
 static const GLfloat itemAlpha = 0.0f;
+static const GLfloat customItemAlpha = 252.0f;
 static const GLfloat labelValueAlpha = 253.0f;
 static const GLfloat labelRowAlpha = 254.0f;
 static const GLfloat labelColumnAlpha = 255.0f;