transparency-qml-scene3d: added precision to alpha variable

Shader failed to compile on some android targets without the
precision defined.

Change-Id: I1953f62594dc931f40186963add1ff8df6867975
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/qt3d/transparency-qml-scene3d/phongalpha.frag b/examples/qt3d/transparency-qml-scene3d/phongalpha.frag
index b6b21fae4..11d4ef0d9 100644
--- a/examples/qt3d/transparency-qml-scene3d/phongalpha.frag
+++ b/examples/qt3d/transparency-qml-scene3d/phongalpha.frag
@@ -8,7 +8,7 @@ uniform FP vec3 ka;            // Ambient reflectivity
 uniform FP vec3 kd;            // Diffuse reflectivity
 uniform FP vec3 ks;            // Specular reflectivity
 uniform FP float shininess;    // Specular shininess factor
-uniform float alpha;
+uniform FP float alpha;
 
 varying FP vec3 position;
 varying FP vec3 normal;