1 files changed, 2 insertions, 0 deletions
diff --git a/src/datavisualization/engine/shaders/default.vert b/src/datavisualization/engine/shaders/default.vert
index e0718b20..b454913b 100644
--- a/src/datavisualization/engine/shaders/default.vert
+++ b/src/datavisualization/engine/shaders/default.vert
@@ -8,6 +8,7 @@ uniform highp mat4 M;
 uniform highp mat4 itM;
 uniform highp vec3 lightPosition_wrld;
 
+varying highp vec3 lightPosition_wrld_frag;
 varying highp vec3 position_wrld;
 varying highp vec3 normal_cmr;
 varying highp vec3 eyeDirection_cmr;
@@ -23,4 +24,5 @@ void main() {
     vec3 lightPosition_cmr = vec4(V * vec4(lightPosition_wrld, 1.0)).xyz;
     lightDirection_cmr = lightPosition_cmr + eyeDirection_cmr;
     normal_cmr = vec4(V * itM * vec4(vertexNormal_mdl, 0.0)).xyz;
+    lightPosition_wrld_frag = lightPosition_wrld;
 }